Пример #1
0
        /**
         *
         * Given a tsColumn object, returns its value as a String.
         *
         * @param column the tsColumn object
         *
         */
        public String columnAsString(TsColumn column)
        {
            String outputString, valueString, functionName, argList, nextArg;

            java.lang.StringBuffer functionBuffer;
            FieldTokenizer         ft1, ft2;

            /*
             *    Next try to retrieve as a group function, which will not have a
             *    tablename prefix.
             */
            outputString = (String)get(column.name);
            if (outputString != (String)null)
            {
                return(outputString);
            }
            ft1 = new FieldTokenizer(column.name, '(', false);
            if (ft1.countFields() == 2)
            {
                /*
                 *       The column is a function.  If it is a group function, the value
                 *       will be stored in the record.  Otherwise, the function value
                 *       will be determined here by retrieving and processing all the
                 *       columns in the function arguments.
                 */
                outputString = (String)get(column.name);
                if (outputString != (String)null)
                {
                    return(outputString);
                }
                functionName   = ft1.getField(0);
                argList        = ft1.getField(1);
                ft2            = new FieldTokenizer(argList, ',', false);
                functionBuffer = new java.lang.StringBuffer();

                /*
                 *       Function arguments must consist of table.column names or constants.
                 */
                while (ft2.hasMoreFields())
                {
                    nextArg     = ft2.nextField();
                    valueString = (String)get(nextArg);
                    if (debug)
                    {
                        java.lang.SystemJ.outJ.println("Function " + functionName
                                                       + " argument " + nextArg + " has value " + valueString);
                    }

                    /*
                     *          If the valueString is null then it is a constant rather than
                     *          a database column.  Remove enclosing quotes.
                     */
                    if (valueString == (String)null)
                    {
                        valueString = UtilString.removeQuotes(nextArg);
                    }
                    else
                    {
                        valueString = valueString.trim();
                    }
                    if (functionName.equals("CONCAT"))
                    {
                        functionBuffer.append(valueString);
                    }
                }
                outputString = functionBuffer.toString();
            }
            else if (column.tableName == (String)null)
            {
                /*
                 *       This is a constant.  Return the table name which will be equal to
                 *       the constant value.
                 */
                outputString = UtilString.removeQuotes(column.name);
            }
            else
            {
                /*
                 *       Retrieve as a simple database column.
                 */
                outputString = (String)get(column.tableName + "." + column.name);
                if (Utils.isDateColumn(column.type))
                {
                    /*
                     *          Format dates as DD-MON-YY for output.  Note that the value
                     *          stored in the database may already be in this format because
                     *          of incorrect storage of date strings prior to version 2.3.
                     */
                    try
                    {
                        outputString = UtilString.toStandardDate(outputString);
                    }
                    catch (Exception dateEx)
                    {
                        java.lang.SystemJ.outJ.println(dateEx.getMessage());
                    }
                }
            }
            return(outputString);
        }
Пример #2
0
        /*
         * Parse out the column definition for a CREATE statement.
         */
        public TsColumn parseColumnDefn(String columnDefn) //throws TinySQLException
        {
            TsColumn       createColumn;
            int            i;
            FieldTokenizer ft;
            String         columnName, colTypeStr, colTypeSpec;

            ft = new FieldTokenizer(columnDefn.toUpperCase(), ' ', false);

/*
 *    A column definition must consist of a column name followed by a
 *    column specification.
 */
            if (ft.countFields() < 2)
            {
                throwException(2);
            }
            columnName = ft.getField(0);

/*
 *    Check for quotes around a column name that may contain blanks.
 */
            if (columnName.charAt(0) == '"' &
                columnName.charAt(columnName.length() - 1) == '"')
            {
                columnName = columnName.substring(1, columnName.length() - 1);
            }
            if (columnName.length() > 11)
            {
                columnName = TinySQLGlobals.getShortName(columnName);
            }
            createColumn = new TsColumn(columnName);
            colTypeStr   = "";
            for (i = 1; i < ft.countFields(); i++)
            {
                colTypeStr += ft.getField(1);
            }
            ft                         = new FieldTokenizer(colTypeStr, '(', false);
            colTypeStr                 = ft.getField(0);
            createColumn.size          = 10;
            createColumn.decimalPlaces = 0;
            if (colTypeStr.equals("FLOAT"))
            {
                createColumn.size          = 12;
                createColumn.decimalPlaces = 2;
            }
            colTypeSpec = ft.getField(1);
            if (!colTypeSpec.equals("NULL"))
            {
/*
 *       Parse out the scale and precision if supplied.
 */
                ft = new FieldTokenizer(colTypeSpec, ',', false);
                createColumn.size          = ft.getInt(0, 8);
                createColumn.decimalPlaces = ft.getInt(1, 0);
            }
            createColumn.type = java.lang.Integer.MIN_VALUE;
            for (i = 0; i < colTypeNames.Length; i++)
            {
                if (colTypeStr.equals(colTypeNames[i]))
                {
                    createColumn.type = colTypes[i];
                }
            }
            if (createColumn.type == java.lang.Integer.MIN_VALUE)
            {
                throwException(8);
            }
            if (TinySQLGlobals.PARSER_DEBUG)
            {
                java.lang.SystemJ.outJ.println("Column " + createColumn.name
                                               + ", type is " + createColumn.type + ",size is " + createColumn.size
                                               + ",precision is " + createColumn.decimalPlaces);
            }
            return(createColumn);
        }
Пример #3
0
        internal TsColumn(String s, java.util.Hashtable <Object, Object> tableDefs, String inputContext)
        //throws tinySQLException
        {
            FieldTokenizer ft, ftArgs;
            int            j, numericType, nameLength, dotAt, argIndex;
            String         upperName, checkName, nextArg;
            TinySQLTable   jtbl;
            TsColumn       tcol;

            java.util.Vector <Object>      t;
            java.util.Enumeration <Object> col_keys;
            name        = s;
            longName    = name;
            nameLength  = name.length();
            contextList = new java.util.Vector <Object>();
            contextList.addElement(inputContext);
            ft = new FieldTokenizer(name, '(', false);
            if (ft.countFields() == 2)
            {
                /*
                 *       This is a function rather than a simple column or constant
                 */
                functionName = ft.getField(0).toUpperCase();
                if (functionName.equals("COUNT"))
                {
                    type          = java.sql.Types.INTEGER;
                    size          = 10;
                    intValue      = java.lang.Integer.MIN_VALUE;
                    groupedColumn = true;
                }
                else if (functionName.equals("SUM"))
                {
                    type          = java.sql.Types.FLOAT;
                    size          = 10;
                    groupedColumn = true;
                }
                else if (functionName.equals("TO_DATE"))
                {
                    type = java.sql.Types.DATE;
                    size = 10;
                }
                else if (functionName.equals("CONCAT") |
                         functionName.equals("UPPER") |
                         functionName.equals("SUBSTR") |
                         functionName.equals("TRIM"))
                {
                    type = java.sql.Types.CHAR;
                }
                functionArgString = ft.getField(1);
                ftArgs            = new FieldTokenizer(functionArgString, ',', false);
                functionArgs      = new java.util.Vector <Object>();
                argIndex          = 0;
                while (ftArgs.hasMoreFields())
                {
                    nextArg = ftArgs.nextField();
                    tcol    = new TsColumn(nextArg, tableDefs, inputContext);
                    if (tcol.isGroupedColumn())
                    {
                        groupedColumn = true;
                    }

                    /*
                     *          MAX and MIN functions can be either FLOAT or CHAR types
                     *          depending upon the type of the argument.
                     */
                    if (functionName.equals("MAX") | functionName.equals("MIN"))
                    {
                        if (argIndex > 0)
                        {
                            throw new TinySQLException("Function can only have 1 argument");
                        }
                        groupedColumn = true;
                        type          = tcol.type;
                        size          = tcol.size;
                    }
                    else if (functionName.equals("CONCAT"))
                    {
                        type  = java.sql.Types.CHAR;
                        size += tcol.size;
                    }
                    else if (functionName.equals("UPPER"))
                    {
                        type = java.sql.Types.CHAR;
                        size = tcol.size;
                    }
                    else if (functionName.equals("TO_DATE"))
                    {
                        type = java.sql.Types.DATE;
                        size = 10;
                    }
                    else if (functionName.equals("TRIM"))
                    {
                        type = java.sql.Types.CHAR;
                        size = tcol.size;
                    }
                    else if (functionName.equals("SUBSTR"))
                    {
                        type = java.sql.Types.CHAR;
                        if (argIndex == 0 & tcol.type != java.sql.Types.CHAR)
                        {
                            throw new TinySQLException("SUBSTR first argument must be character");
                        }
                        else if (argIndex == 1)
                        {
                            if (tcol.type != java.sql.Types.INTEGER | tcol.intValue < 1)
                            {
                                throw new TinySQLException("SUBSTR second argument "
                                                           + tcol.getString() + " must be integer > 0");
                            }
                        }
                        else if (argIndex == 2)
                        {
                            if (tcol.type != java.sql.Types.INTEGER | tcol.intValue < 1)
                            {
                                throw new TinySQLException("SUBSTR third argument "
                                                           + tcol.getString() + " must be integer > 0");
                            }
                            size = tcol.intValue;
                        }
                    }
                    argIndex++;
                    functionArgs.addElement(tcol);
                }
            }
            else
            {
                /*
                 *       Check for SYSDATE
                 */
                if (name.toUpperCase().equals("SYSDATE"))
                {
                    isConstant = true;
                    type       = java.sql.Types.DATE;
                    size       = 10;
                    notNull    = true;
                    valueSet   = true;
                    //Basties mote: not really SimpleDateFormat needed... - need yyyy-MM-dd
                    // stringValue = fmtyyyyMMdd.format(today.getTime());
                    stringValue = System.DateTime.Today.ToString("yyyy-MM-dd");

                    /*
                     *          Check for a quoted string
                     */
                }
                else if (UtilString.isQuotedString(name))
                {
                    isConstant  = true;
                    type        = java.sql.Types.CHAR;
                    stringValue = UtilString.removeQuotes(name);
                    if (stringValue != (String)null)
                    {
                        size     = stringValue.length();
                        notNull  = true;
                        valueSet = true;
                    }
                }
                else
                {
                    /*
                     *          Check for a numeric constant
                     */
                    numericType = UtilString.getValueType(name);
                    if (numericType == java.sql.Types.INTEGER)
                    {
                        intValue   = java.lang.Integer.valueOf(name).intValue();
                        size       = 10;
                        type       = numericType;
                        isConstant = true;
                        notNull    = true;
                        valueSet   = true;
                    }
                    else if (numericType == java.sql.Types.FLOAT)
                    {
                        floatValue = java.lang.Float.valueOf(name).floatValue();
                        size       = 10;
                        type       = numericType;
                        isConstant = true;
                        notNull    = true;
                        valueSet   = true;
                    }
                    else
                    {
                        /*
                         *             This should be a column name.
                         */
                        columnTable = (TinySQLTable)null;
                        upperName   = name.toUpperCase();
                        if (TinySQLGlobals.DEBUG)
                        {
                            java.lang.SystemJ.outJ.println("Trying to find table for " + upperName);
                        }
                        dotAt = upperName.indexOf(".");
                        if (dotAt > -1)
                        {
                            tableName = upperName.substring(0, dotAt);
                            if (tableDefs != (java.util.Hashtable <Object, Object>)null &
                                tableName.indexOf("->") < 0)
                            {
                                t         = (java.util.Vector <Object>)tableDefs.get("TABLE_SELECT_ORDER");
                                tableName = UtilString.findTableAlias(tableName, t);
                            }
                            upperName = upperName.substring(dotAt + 1);

                            /*
                             *                Check to see if this column name has a short equivalent.
                             */
                            if (upperName.length() > 11)
                            {
                                longName  = name;
                                upperName = TinySQLGlobals.getShortName(upperName);
                            }
                            columnTable = (TinySQLTable)tableDefs.get(tableName);
                        }
                        else if (tableDefs != (java.util.Hashtable <Object, Object>)null)
                        {
                            /*
                             *                Check to see if this column name has a short equivalent.
                             */
                            if (upperName.length() > 11)
                            {
                                longName  = name;
                                upperName = TinySQLGlobals.getShortName(upperName);
                            }

                            /*
                             *                Use an enumeration to go through all of the tables to find
                             *                this column.
                             */
                            t = (java.util.Vector <Object>)tableDefs.get("TABLE_SELECT_ORDER");
                            for (j = 0; j < t.size(); j++)
                            {
                                tableName = (String)t.elementAt(j);
                                jtbl      = (TinySQLTable)tableDefs.get(tableName);
                                col_keys  = jtbl.column_info.keys();

                                /*
                                 *                   Check all columns.
                                 */
                                while (col_keys.hasMoreElements())
                                {
                                    checkName = (String)col_keys.nextElement();
                                    if (checkName.equals(upperName))
                                    {
                                        upperName   = checkName;
                                        columnTable = jtbl;
                                        break;
                                    }
                                }
                                if (columnTable != (TinySQLTable)null)
                                {
                                    break;
                                }
                            }
                        }
                        else
                        {
                            if (TinySQLGlobals.DEBUG)
                            {
                                java.lang.SystemJ.outJ.println("No table definitions.");
                            }
                        }
                        if (columnTable != (TinySQLTable)null)
                        {
                            name = columnTable.table + "->" + columnTable.tableAlias
                                   + "." + upperName;
                            type          = columnTable.ColType(upperName);
                            size          = columnTable.ColSize(upperName);
                            decimalPlaces = columnTable.ColDec(upperName);
                            tableName     = columnTable.table + "->" + columnTable.tableAlias;
                        }
                    }
                }
            }
        }
Пример #4
0
        /*
         * This method sets up particular phrase elements for the SQL command.
         * Examples would be a list of selected columns and tables for a SELECT
         * statement, or a list of column definitions for a CREATE TABLE
         * statement.  These phrase elements will be added to the action list
         * once the entire statement has been parsed.
         */
        public void setPhrase(String inputKeyWord, String inputString)
        //throws TinySQLException
        {
            String nextField, upperField,
                   fieldString, tempString, columnName, columnAlias;

            java.lang.StringBuffer concatBuffer;
            FieldTokenizer         ft1, ft2, ft3;
            TsColumn createColumn;

/*
 *    Handle compound keywords.
 */
            if (inputString == (String)null)
            {
                lastKeyWord = inputKeyWord;
                return;
            }
            else if (inputString.trim().length() == 0)
            {
                lastKeyWord = inputKeyWord;
                return;
            }
            if (TinySQLGlobals.PARSER_DEBUG)
            {
                java.lang.SystemJ.outJ.println("setPhrase " + inputString);
            }
            ft1 = new FieldTokenizer(inputString, ',', false);
            while (ft1.hasMoreFields())
            {
                nextField = ft1.nextField().trim();
                if (TinySQLGlobals.PARSER_DEBUG)
                {
                    java.lang.SystemJ.outJ.println(inputKeyWord + " field is " + nextField);
                }
                upperField = nextField.toUpperCase();
                if (inputKeyWord.equals("SELECT"))
                {
/*
 *          Check for the keyword DISTINCT
 */
                    if (nextField.toUpperCase().startsWith("DISTINCT"))
                    {
                        distinct  = true;
                        nextField = nextField.substring(9).trim();
                    }

/*
 *          Check for and set column alias.
 */
                    ft2         = new FieldTokenizer(nextField, ' ', false);
                    columnName  = ft2.getField(0);
                    columnAlias = (String)null;

/*
 *          A column alias can be preceded by the keyword AS which will
 *          be ignored by tinySQL.
 */
                    if (ft2.countFields() == 2)
                    {
                        columnAlias = ft2.getField(1);
                    }
                    else if (ft2.countFields() == 3)
                    {
                        columnAlias = ft2.getField(2);
                    }

/*
 *          Check for column concatenation using the | symbol
 */
                    ft2 = new FieldTokenizer(columnName, '|', false);
                    if (ft2.countFields() > 1)
                    {
                        concatBuffer = new java.lang.StringBuffer("CONCAT(");
                        while (ft2.hasMoreFields())
                        {
                            if (concatBuffer.length() > 7)
                            {
                                concatBuffer.append(",");
                            }
                            concatBuffer.append(ft2.nextField());
                        }
                        columnName = concatBuffer.toString() + ")";
                    }
                    columnList.addElement(columnName);
                    columnAliasList.addElement(columnAlias);
                    contextList.addElement(inputKeyWord);
                }
                else if (inputKeyWord.equals("TABLE"))
                {
/*
 *          If the input keyword is TABLE, update the statement type to be a
 *          compound type such as CREATE_TABLE, DROP_TABLE, or ALTER_TABLE.
 */
                    if (!statementType.equals("INSERT"))
                    {
                        statementType = statementType + "_TABLE";
                    }
                    if (statementType.equals("CREATE_TABLE"))
                    {
/*
 *             Parse out the column definition.
 */
                        ft2 = new FieldTokenizer(nextField, '(', false);
                        if (ft2.countFields() != 2)
                        {
                            throwException(1);
                        }
                        tableName   = ft2.getField(0);
                        fieldString = ft2.getField(1);
                        ft2         = new FieldTokenizer(fieldString, ',', false);
                        while (ft2.hasMoreFields())
                        {
                            tempString   = ft2.nextField();
                            createColumn = parseColumnDefn(tempString);
                            if (createColumn != (TsColumn)null)
                            {
                                columnList.addElement(createColumn);
                            }
                        }
                    }
                    else if (statementType.equals("DROP_TABLE"))
                    {
/*
 *             Handle dropping of non-existent tables
 */
                        tableName = upperField;
                        try
                        {
                            validateTable(upperField, true);
                        } catch (Exception) {
                            throw new TinySQLException("Table " + tableName
                                                       + " does not exist.");
                        }
                    }
                    else
                    {
                        tableName = upperField;
                        validateTable(upperField, true);
                    }
                }
                else if (inputKeyWord.equals("BY"))
                {
/*
 *          Set up Group by and Order by columns.
 */
                    if (lastKeyWord == (String)null)
                    {
                        throwException(6);
                    }
                    else
                    {
                        ft3 = new FieldTokenizer(upperField, ' ', false);
                        columnList.addElement(ft3.getField(0));
                        if (ft3.countFields() == 2)
                        {
/*
 *                ASC or DESC are the only allowable directives after GROUP BY
 */
                            if (ft3.getField(1).startsWith("ASC") |
                                ft3.getField(1).startsWith("DESC"))
                            {
                                orderType = ft3.getField(1);
                            }
                            else
                            {
                                throwException(7);
                            }
                        }
                        if (lastKeyWord.equals("ORDER"))
                        {
                            defaultOrderBy = false;
                        }
                        contextList.addElement(lastKeyWord);
                    }
                }
                else if (inputKeyWord.equals("DROP"))
                {
/*
 *          Parse list of columns to be dropped.
 */
                    statementType = "ALTER_DROP";
                    ft2           = new FieldTokenizer(upperField, ' ', false);
                    while (ft2.hasMoreFields())
                    {
                        columnList.addElement(UtilString.removeQuotes(ft2.nextField()));
                    }
                }
                else if (inputKeyWord.equals("RENAME"))
                {
/*
 *          Parse old and new column name.
 */
                    statementType = "ALTER_RENAME";
                    ft2           = new FieldTokenizer(upperField, ' ', false);
                    oldColumnName = ft2.getField(0);
                    newColumnName = ft2.getField(1);
                    if (newColumnName.equals("TO") & ft2.countFields() == 3)
                    {
                        newColumnName = ft2.getField(2);
                    }
                    if (newColumnName.length() > 11)
                    {
                        newColumnName = TinySQLGlobals.getShortName(newColumnName);
                    }
                }
                else if (inputKeyWord.equals("ADD"))
                {
/*
 *          Parse definition of columns to be added.
 */
                    statementType = "ALTER_ADD";
                    createColumn  = parseColumnDefn(nextField);
                    if (createColumn != (TsColumn)null)
                    {
                        columnList.addElement(createColumn);
                    }
                }
                else if (inputKeyWord.equals("FROM"))
                {
/*
 *          Check for valid table
 */
                    tableName = upperField;
                    validateTable(tableName);
                }
                else if (inputKeyWord.equals("INTO"))
                {
                    ft2 = new FieldTokenizer(nextField, '(', false);
                    if (ft2.countFields() != 2)
                    {
                        throwException(3);
                    }
                    tableName = ft2.getField(0).toUpperCase();
                    validateTable(tableName);
                    fieldString = ft2.getField(1).toUpperCase();
                    ft2         = new FieldTokenizer(fieldString, ',', false);
                    while (ft2.hasMoreFields())
                    {
                        tempString = UtilString.removeQuotes(ft2.nextField());
                        columnList.addElement(tempString);
                        contextList.addElement(inputKeyWord);
                    }
                }
                else if (inputKeyWord.equals("VALUES"))
                {
                    ft2         = new FieldTokenizer(nextField, '(', false);
                    fieldString = ft2.getField(0);
                    ft2         = new FieldTokenizer(fieldString, ',', false);
                    while (ft2.hasMoreFields())
                    {
                        tempString = UtilString.removeQuotes(ft2.nextField());
                        tempString = UtilString.replaceAll(tempString, "''", "'");
                        valueList.addElement(tempString);
                    }
                }
                else if (inputKeyWord.equals("UPDATE"))
                {
                    tableName = nextField.toUpperCase();
                    validateTable(tableName);
                }
                else if (inputKeyWord.equals("SET"))
                {
/*
 *          Parse the update column name/value pairs
 */
                    ft2 = new FieldTokenizer(nextField, '=', false);
                    if (ft2.countFields() != 2)
                    {
                        throwException(4);
                    }
                    columnList.addElement(ft2.getField(0));
                    contextList.addElement(inputKeyWord);
                    valueList.addElement(UtilString.removeQuotes(ft2.getField(1)));
                }
                else if (inputKeyWord.equals("WHERE"))
                {
                    whereClause = new TinySQLWhere(nextField, tables);
                }
                else if (!inputKeyWord.equals("TABLE"))
                {
                    throwException(10);
                }
            }
            lastKeyWord = inputKeyWord;
        }
Пример #5
0
        public static void main(String[] args) //throws IOException,SQLException
        {
            java.sql.DatabaseMetaData  dbMeta;
            java.sql.ResultSetMetaData meta;
            java.sql.ResultSet         display_rs, typesRS;
            java.io.BufferedReader     stdin, loadFileReader;
            java.io.BufferedReader     startReader = (java.io.BufferedReader)null;
            String[]            fields;
            java.sql.Connection con;
            java.sql.Statement  stmt;
            FieldTokenizer      ft;

            java.sql.PreparedStatement pstmt = (java.sql.PreparedStatement)null;
            int i, rsColCount, endAt, colWidth, colScale, colPrecision, typeCount,
                colType, parameterIndex, b1, b2, parameterInt, startAt, columnIndex, valueIndex;
            String fName, tableName = null, inputString, cmdString, colTypeName, dbType,
                   parameterString, loadString, fieldString, readString;

            java.lang.StringBuffer lineOut, prepareBuffer, valuesBuffer, inputBuffer;
            bool echo = false;

            stdin = new java.io.BufferedReader(new java.io.InputStreamReader(java.lang.SystemJ.inJ));
            try
            {
                /*
                 *       Register the JDBC driver for dBase
                 */
                java.lang.Class.forName("com.sqlmagic.tinysql.dbfFileDriver");
            }
            catch (java.lang.ClassNotFoundException e)
            {
                java.lang.SystemJ.err.println(
                    "JDBC Driver could not be registered!!\n");
                if (TinySQLGlobals.DEBUG)
                {
                    e.printStackTrace();
                }
            }
            fName = ".";
            if (args.Length > 0)
            {
                fName = args[0];
            }

            /*
             *    Establish a connection to dBase
             */
            con = dbConnect(fName);
            if (con == (java.sql.Connection)null)
            {
                fName = ".";
                con   = dbConnect(fName);
            }
            dbMeta    = con.getMetaData();
            dbType    = dbMeta.getDatabaseProductName();
            dbVersion = dbMeta.getDatabaseProductVersion();
            java.lang.SystemJ.outJ.println("===================================================");
            java.lang.SystemJ.outJ.println(dbType + " Command line interface version "
                                           + dbVersion + " Java version released March 15, 2007");
            java.lang.SystemJ.outJ.println("Type HELP to get information on available commands.");
            cmdString   = "NULL";
            stmt        = con.createStatement();
            inputString = (String)null;
            if (args.Length > 1)
            {
                inputString = args[1].trim();
            }
            while (!cmdString.toUpperCase().equals("EXIT"))
            {
                try
                {
                    if (startReader != (java.io.BufferedReader)null)
                    {
                        /*
                         *             Command START files can contain comments and can have
                         *             commands broken over several lines.  However, they
                         *             cannot have partial commands on a line.
                         */
                        inputBuffer = new java.lang.StringBuffer();
                        inputString = (String)null;
                        while ((readString = startReader.readLine()) != null)
                        {
                            if (readString.startsWith("--") |
                                readString.startsWith("#"))
                            {
                                continue;
                            }
                            inputBuffer.append(readString + " ");

                            /*
                             *                A field tokenizer must be used to avoid problems with
                             *                semi-colons inside quoted strings.
                             */
                            ft = new FieldTokenizer(inputBuffer.toString(), ';', true);
                            if (ft.countFields() > 1)
                            {
                                inputString = inputBuffer.toString();
                                break;
                            }
                        }
                        if (inputString == (String)null)
                        {
                            startReader = (java.io.BufferedReader)null;
                            continue;
                        }
                    }
                    else if (args.Length == 0)
                    {
                        java.lang.SystemJ.outJ.print("tinySQL>");
                        inputString = stdin.readLine().trim();
                    }
                    if (inputString == (String)null)
                    {
                        break;
                    }
                    if (inputString.toUpperCase().startsWith("EXIT") |
                        inputString.toUpperCase().startsWith("QUIT"))
                    {
                        break;
                    }
                    startAt = 0;
                    while (startAt < inputString.length() - 1)
                    {
                        endAt = inputString.indexOf(";", startAt);
                        if (endAt == -1)
                        {
                            endAt = inputString.length();
                        }
                        cmdString = inputString.substring(startAt, endAt);
                        if (echo)
                        {
                            java.lang.SystemJ.outJ.println(cmdString);
                        }
                        startAt = endAt + 1;
                        if (cmdString.toUpperCase().startsWith("SELECT"))
                        {
                            display_rs = stmt.executeQuery(cmdString);
                            if (display_rs == (java.sql.ResultSet)null)
                            {
                                java.lang.SystemJ.outJ.println("Null ResultSet returned from query");
                                continue;
                            }
                            meta = display_rs.getMetaData();

                            /*
                             *                The actual number of columns retrieved has to be checked
                             */
                            rsColCount = meta.getColumnCount();
                            lineOut    = new java.lang.StringBuffer(100);
                            int[]    columnWidths     = new int[rsColCount];
                            int[]    columnScales     = new int[rsColCount];
                            int[]    columnPrecisions = new int[rsColCount];
                            int[]    columnTypes      = new int[rsColCount];
                            String[] columnNames      = new String[rsColCount];
                            for (i = 0; i < rsColCount; i++)
                            {
                                columnNames[i]      = meta.getColumnName(i + 1);
                                columnWidths[i]     = meta.getColumnDisplaySize(i + 1);
                                columnTypes[i]      = meta.getColumnType(i + 1);
                                columnScales[i]     = meta.getScale(i + 1);
                                columnPrecisions[i] = meta.getPrecision(i + 1);
                                if (columnNames[i].length() > columnWidths[i])
                                {
                                    columnWidths[i] = columnNames[i].length();
                                }
                                lineOut.append(padString(columnNames[i], columnWidths[i]) + " ");
                            }
                            if (TinySQLGlobals.DEBUG)
                            {
                                java.lang.SystemJ.outJ.println(lineOut.toString());
                            }
                            displayResults(display_rs);
                        }
                        else if (cmdString.toUpperCase().startsWith("CONNECT"))
                        {
                            con = dbConnect(cmdString.substring(8, cmdString.length()));
                        }
                        else if (cmdString.toUpperCase().startsWith("HELP"))
                        {
                            helpMsg(cmdString);
                        }
                        else if (cmdString.toUpperCase().startsWith("DESCRIBE"))
                        {
                            dbMeta     = con.getMetaData();
                            tableName  = cmdString.toUpperCase().substring(9);
                            display_rs = dbMeta.getColumns(null, null, tableName, null);
                            java.lang.SystemJ.outJ.println("\nColumns for table " + tableName + "\n"
                                                           + "Name                            Type");
                            while (display_rs.next())
                            {
                                lineOut = new java.lang.StringBuffer(100);
                                lineOut.append(padString(display_rs.getString(4), 32));
                                colTypeName  = display_rs.getString(6);
                                colType      = display_rs.getInt(5);
                                colWidth     = display_rs.getInt(7);
                                colScale     = display_rs.getInt(9);
                                colPrecision = display_rs.getInt(10);
                                if (colTypeName.equals("CHAR"))
                                {
                                    colTypeName = colTypeName + "("
                                                  + java.lang.Integer.toString(colWidth) + ")";
                                }
                                else if (colTypeName.equals("FLOAT"))
                                {
                                    colTypeName += "(" + java.lang.Integer.toString(colPrecision)
                                                   + "," + java.lang.Integer.toString(colScale) + ")";
                                }
                                lineOut.append(padString(colTypeName, 20) + padString(colType, 12));
                                java.lang.SystemJ.outJ.println(lineOut.toString());
                            }
                        }
                        else if (cmdString.toUpperCase().equals("SHOW TABLES"))
                        {
                            for (i = 0; i < tableList.size(); i++)
                            {
                                java.lang.SystemJ.outJ.println((String)tableList.elementAt(i));
                            }
                        }
                        else if (cmdString.toUpperCase().equals("SHOW TYPES"))
                        {
                            typesRS   = dbMeta.getTypeInfo();
                            typeCount = displayResults(typesRS);
                        }
                        else if (cmdString.toUpperCase().startsWith("SET "))
                        {
                            /*
                             *                Support for SET DEBUG ON/OFF and SET ECHO ON/OFF
                             */
                            ft     = new FieldTokenizer(cmdString.toUpperCase(), ' ', false);
                            fields = ft.getFields();
                            if (fields[1].equals("ECHO"))
                            {
                                if (fields[2].equals("ON"))
                                {
                                    echo = true;
                                }
                                else
                                {
                                    echo = false;
                                }
                            }
                            else if (fields[1].equals("DEBUG"))
                            {
                                if (fields[2].equals("ON"))
                                {
                                    TinySQLGlobals.DEBUG = true;
                                }
                                else
                                {
                                    TinySQLGlobals.DEBUG = false;
                                }
                            }
                            else if (fields[1].equals("PARSER_DEBUG"))
                            {
                                if (fields[2].equals("ON"))
                                {
                                    TinySQLGlobals.PARSER_DEBUG = true;
                                }
                                else
                                {
                                    TinySQLGlobals.PARSER_DEBUG = false;
                                }
                            }
                            else if (fields[1].equals("WHERE_DEBUG"))
                            {
                                if (fields[2].equals("ON"))
                                {
                                    TinySQLGlobals.WHERE_DEBUG = true;
                                }
                                else
                                {
                                    TinySQLGlobals.WHERE_DEBUG = false;
                                }
                            }
                            else if (fields[1].equals("EX_DEBUG"))
                            {
                                if (fields[2].equals("ON"))
                                {
                                    TinySQLGlobals.EX_DEBUG = true;
                                }
                                else
                                {
                                    TinySQLGlobals.EX_DEBUG = false;
                                }
                            }
                        }
                        else if (cmdString.toUpperCase().startsWith("SPOOL "))
                        {
                            /*
                             *                Spool output to a file.
                             */
                            ft    = new FieldTokenizer(cmdString, ' ', false);
                            fName = ft.getField(1);
                            if (fName.equals("OFF"))
                            {
                                try
                                {
                                    spoolFileWriter.close();
                                }
                                catch (Exception spoolEx)
                                {
                                    java.lang.SystemJ.outJ.println("Unable to close spool file "
                                                                   + spoolEx.getMessage() + newLine);
                                }
                            }
                            else
                            {
                                try
                                {
                                    spoolFileWriter = new java.io.FileWriter(fName);
                                    if (spoolFileWriter != (java.io.FileWriter)null)
                                    {
                                        java.lang.SystemJ.outJ.println("Output spooled to " + fName);
                                    }
                                }
                                catch (Exception spoolEx)
                                {
                                    java.lang.SystemJ.outJ.println("Unable to spool to file "
                                                                   + spoolEx.getMessage() + newLine);
                                }
                            }
                        }
                        else if (cmdString.toUpperCase().startsWith("START "))
                        {
                            ft    = new FieldTokenizer(cmdString, ' ', false);
                            fName = ft.getField(1);
                            if (!fName.toUpperCase().endsWith(".SQL"))
                            {
                                fName += ".SQL";
                            }
                            try
                            {
                                startReader = new java.io.BufferedReader(new java.io.FileReader(fName));
                            }
                            catch (Exception)
                            {
                                startReader = (java.io.BufferedReader)null;
                                throw new TinySQLException("No such file: " + fName);
                            }
                        }
                        else if (cmdString.toUpperCase().startsWith("LOAD"))
                        {
                            ft         = new FieldTokenizer(cmdString, ' ', false);
                            fName      = ft.getField(1);
                            tableName  = ft.getField(3);
                            display_rs = stmt.executeQuery("SELECT * FROM " + tableName);
                            meta       = display_rs.getMetaData();
                            rsColCount = meta.getColumnCount();

                            /*
                             *                Set up the PreparedStatement for the inserts
                             */
                            prepareBuffer = new java.lang.StringBuffer("INSERT INTO " + tableName);
                            valuesBuffer  = new java.lang.StringBuffer(" VALUES");
                            for (i = 0; i < rsColCount; i++)
                            {
                                if (i == 0)
                                {
                                    prepareBuffer.append(" (");
                                    valuesBuffer.append(" (");
                                }
                                else
                                {
                                    prepareBuffer.append(",");
                                    valuesBuffer.append(",");
                                }
                                prepareBuffer.append(meta.getColumnName(i + 1));
                                valuesBuffer.append("?");
                            }
                            prepareBuffer.append(")" + valuesBuffer.toString() + ")");
                            try
                            {
                                pstmt          = con.prepareStatement(prepareBuffer.toString());
                                loadFileReader = new java.io.BufferedReader(new java.io.FileReader(fName));
                                while ((loadString = loadFileReader.readLine()) != null)
                                {
                                    if (loadString.toUpperCase().equals("ENDOFDATA"))
                                    {
                                        break;
                                    }
                                    columnIndex = 0;
                                    valueIndex  = 0;
                                    ft          = new FieldTokenizer(loadString, '|', true);
                                    while (ft.hasMoreFields())
                                    {
                                        fieldString = ft.nextField();
                                        if (fieldString.equals("|"))
                                        {
                                            columnIndex++;
                                            if (columnIndex > valueIndex)
                                            {
                                                pstmt.setString(valueIndex + 1, (String)null);
                                                valueIndex++;
                                            }
                                        }
                                        else if (columnIndex < rsColCount)
                                        {
                                            pstmt.setString(valueIndex + 1, fieldString);
                                            valueIndex++;
                                        }
                                    }
                                    pstmt.executeUpdate();
                                }
                                pstmt.close();
                            }
                            catch (Exception loadEx)
                            {
                                java.lang.SystemJ.outJ.println(loadEx.getMessage());
                            }
                        }
                        else if (cmdString.toUpperCase().startsWith("SETSTRING") |
                                 cmdString.toUpperCase().startsWith("SETINT"))
                        {
                            b1 = cmdString.indexOf(" ");
                            b2 = cmdString.lastIndexOf(" ");
                            if (b2 > b1 & b1 > 0)
                            {
                                parameterIndex  = java.lang.Integer.parseInt(cmdString.substring(b1 + 1, b2));
                                parameterString = cmdString.substring(b2 + 1);
                                if (TinySQLGlobals.DEBUG)
                                {
                                    java.lang.SystemJ.outJ.println("Set parameter["
                                                                   + parameterIndex + "]=" + parameterString);
                                }
                                if (cmdString.toUpperCase().startsWith("SETINT"))
                                {
                                    parameterInt = java.lang.Integer.parseInt(parameterString);
                                    pstmt.setInt(parameterIndex, parameterInt);
                                }
                                else
                                {
                                    pstmt.setString(parameterIndex, parameterString);
                                }
                                if (parameterIndex == 2)
                                {
                                    pstmt.executeUpdate();
                                }
                            }
                        }
                        else
                        {
                            if (cmdString.indexOf("?") > -1)
                            {
                                pstmt = con.prepareStatement(cmdString);
                            }
                            else
                            {
                                try
                                {
                                    stmt.executeUpdate(cmdString);
                                    java.lang.SystemJ.outJ.println("DONE\n");
                                }
                                catch (java.lang.Exception upex)
                                {
                                    java.lang.SystemJ.outJ.println(upex.getMessage());
                                    if (TinySQLGlobals.DEBUG)
                                    {
                                        upex.printStackTrace();
                                    }
                                }
                            }
                        }
                    }
                    if (args.Length > 1)
                    {
                        cmdString = "EXIT";
                    }
                }
                catch (java.sql.SQLException te)
                {
                    java.lang.SystemJ.outJ.println(te.getMessage());
                    if (TinySQLGlobals.DEBUG)
                    {
                        te.printStackTrace(java.lang.SystemJ.outJ);
                    }
                    inputString = (String)null;
                }
                catch (Exception e)
                {
                    java.lang.SystemJ.outJ.println(e.getMessage());
                    cmdString = "EXIT";
                    break;
                }
            }
            try
            {
                if (spoolFileWriter != (java.io.FileWriter)null)
                {
                    spoolFileWriter.close();
                }
            }
            catch (Exception spoolEx)
            {
                java.lang.SystemJ.outJ.println("Unable to close spool file "
                                               + spoolEx.getMessage() + newLine);
            }
        }