public string QuoteIdentifier(string unquotedIdentifier, OleDbConnection connection)
{
ADP.CheckArgumentNull(unquotedIdentifier, "unquotedIdentifier");
// if the user has specificed a prefix use the user specified prefix and suffix
// otherwise get them from the provider
string quotePrefix = QuotePrefix;
string quoteSuffix = QuoteSuffix;
if (ADP.IsEmpty(quotePrefix) == true)
{
if (connection == null)
{
// Use the adapter's connection if QuoteIdentifier was called from
// DbCommandBuilder instance (which does not have an overload that gets connection object)
connection = DataAdapter?.SelectCommand?.Connection;
if (connection == null)
{
throw ADP.QuotePrefixNotSet(ADP.QuoteIdentifier);
}
}
connection.GetLiteralQuotes(ADP.QuoteIdentifier, out quotePrefix, out quoteSuffix);
// if the quote suffix is null assume that it is the same as the prefix (See OLEDB spec
// IDBInfo::GetLiteralInfo DBLITERAL_QUOTE_SUFFIX.)
if (quoteSuffix == null)
{
quoteSuffix = quotePrefix;
}
}
return(ADP.BuildQuotedString(quotePrefix, quoteSuffix, unquotedIdentifier));
}
public string UnquoteIdentifier(string quotedIdentifier, OleDbConnection connection)
{
string str3;
ADP.CheckArgumentNull(quotedIdentifier, "quotedIdentifier");
string quotePrefix = this.QuotePrefix;
string quoteSuffix = this.QuoteSuffix;
if (ADP.IsEmpty(quotePrefix))
{
if (connection == null)
{
connection = base.GetConnection() as OleDbConnection;
if (connection == null)
{
throw ADP.QuotePrefixNotSet("UnquoteIdentifier");
}
}
connection.GetLiteralQuotes("UnquoteIdentifier", out quotePrefix, out quoteSuffix);
if (quoteSuffix == null)
{
quoteSuffix = quotePrefix;
}
}
ADP.RemoveStringQuotes(quotePrefix, quoteSuffix, quotedIdentifier, out str3);
return(str3);
}
public string UnquoteIdentifier(string quotedIdentifier, OleDbConnection connection)
{
ADP.CheckArgumentNull(quotedIdentifier, "quotedIdentifier");
// if the user has specificed a prefix use the user specified prefix and suffix
// otherwise get them from the provider
string quotePrefix = QuotePrefix;
string quoteSuffix = QuoteSuffix;
if (ADP.IsEmpty(quotePrefix) == true)
{
if (connection == null)
{
// VSTFDEVDIV 479567: use the adapter's connection if UnquoteIdentifier was called from
// DbCommandBuilder instance (which does not have an overload that gets connection object)
connection = base.GetConnection() as OleDbConnection;
if (connection == null)
{
throw ADP.QuotePrefixNotSet(ADP.UnquoteIdentifier);
}
}
connection.GetLiteralQuotes(ADP.UnquoteIdentifier, out quotePrefix, out quoteSuffix);
// if the quote suffix is null assume that it is the same as the prefix (See OLEDB spec
// IDBInfo::GetLiteralInfo DBLITERAL_QUOTE_SUFFIX.)
if (quoteSuffix == null)
{
quoteSuffix = quotePrefix;
}
}
String unquotedIdentifier;
// ignoring the return value because it is acceptable for the quotedString to not be quoted in this
// context.
ADP.RemoveStringQuotes(quotePrefix, quoteSuffix, quotedIdentifier, out unquotedIdentifier);
return(unquotedIdentifier);
}
public string QuoteIdentifier(string unquotedIdentifier, OleDbConnection connection)
{
ADP.CheckArgumentNull(unquotedIdentifier, "unquotedIdentifier");
string quotePrefix = this.QuotePrefix;
string quoteSuffix = this.QuoteSuffix;
if (ADP.IsEmpty(quotePrefix))
{
if (connection == null)
{
connection = base.GetConnection() as OleDbConnection;
if (connection == null)
{
throw ADP.QuotePrefixNotSet("QuoteIdentifier");
}
}
connection.GetLiteralQuotes("QuoteIdentifier", out quotePrefix, out quoteSuffix);
if (quoteSuffix == null)
{
quoteSuffix = quotePrefix;
}
}
return(ADP.BuildQuotedString(quotePrefix, quoteSuffix, unquotedIdentifier));
}
// known difference: when getting the parameters for a sproc, the
// return value gets marked as a return value but for a sql stmt
// the return value gets marked as an output parameter.
private static OleDbParameter[] DeriveParametersFromStoredProcedure(OleDbConnection connection, OleDbCommand command)
{
OleDbParameter[] plist = Array.Empty <OleDbParameter>();
if (connection.SupportSchemaRowset(OleDbSchemaGuid.Procedure_Parameters))
{
string quotePrefix, quoteSuffix;
connection.GetLiteralQuotes(ADP.DeriveParameters, out quotePrefix, out quoteSuffix);
object?[] parsed = MultipartIdentifier.ParseMultipartIdentifier(command.CommandText, quotePrefix, quoteSuffix, '.', 4, true, SR.OLEDB_OLEDBCommandText, false);
if (null == parsed[3])
{
throw ADP.NoStoredProcedureExists(command.CommandText);
}
object?[] restrictions = new object[4];
object value;
// Parse returns an enforced 4 part array
// 0) Server - ignored but removal would be a run-time breaking change from V1.0
// 1) Catalog
// 2) Schema
// 3) ProcedureName
// Restrictions array which is passed to OleDb API expects:
// 0) Catalog
// 1) Schema
// 2) ProcedureName
// 3) ParameterName (leave null)
// Copy from Parse format to OleDb API format
Array.Copy(parsed, 1, restrictions, 0, 3);
//if (cmdConnection.IsServer_msdaora) {
// restrictions[1] = Convert.ToString(cmdConnection.UserId).ToUpper();
//}
DataTable?table = connection.GetSchemaRowset(OleDbSchemaGuid.Procedure_Parameters, restrictions);
if (null != table)
{
DataColumnCollection columns = table.Columns;
DataColumn?parameterName = null;
DataColumn?parameterDirection = null;
DataColumn?dataType = null;
DataColumn?maxLen = null;
DataColumn?numericPrecision = null;
DataColumn?numericScale = null;
DataColumn?backendtype = null;
int index = columns.IndexOf(ODB.PARAMETER_NAME);
if (-1 != index)
{
parameterName = columns[index];
}
index = columns.IndexOf(ODB.PARAMETER_TYPE);
if (-1 != index)
{
parameterDirection = columns[index];
}
index = columns.IndexOf(ODB.DATA_TYPE);
if (-1 != index)
{
dataType = columns[index];
}
index = columns.IndexOf(ODB.CHARACTER_MAXIMUM_LENGTH);
if (-1 != index)
{
maxLen = columns[index];
}
index = columns.IndexOf(ODB.NUMERIC_PRECISION);
if (-1 != index)
{
numericPrecision = columns[index];
}
index = columns.IndexOf(ODB.NUMERIC_SCALE);
if (-1 != index)
{
numericScale = columns[index];
}
index = columns.IndexOf(ODB.TYPE_NAME);
if (-1 != index)
{
backendtype = columns[index];
}
DataRow[] dataRows = table.Select(null, ODB.ORDINAL_POSITION_ASC, DataViewRowState.CurrentRows);
plist = new OleDbParameter[dataRows.Length];
for (index = 0; index < dataRows.Length; ++index)
{
DataRow dataRow = dataRows[index];
OleDbParameter parameter = new OleDbParameter();
if ((null != parameterName) && !dataRow.IsNull(parameterName, DataRowVersion.Default))
{
// $CONSIDER - not trimming the @ from the beginning but to left the designer do that
parameter.ParameterName = Convert.ToString(dataRow[parameterName, DataRowVersion.Default], CultureInfo.InvariantCulture) !.TrimStart(new char[] { '@', ' ', ':' });
}
if ((null != parameterDirection) && !dataRow.IsNull(parameterDirection, DataRowVersion.Default))
{
short direction = Convert.ToInt16(dataRow[parameterDirection, DataRowVersion.Default], CultureInfo.InvariantCulture);
parameter.Direction = ConvertToParameterDirection(direction);
}
if ((null != dataType) && !dataRow.IsNull(dataType, DataRowVersion.Default))
{
// need to ping FromDBType, otherwise WChar->WChar when the user really wants VarWChar
short wType = Convert.ToInt16(dataRow[dataType, DataRowVersion.Default], CultureInfo.InvariantCulture);
parameter.OleDbType = NativeDBType.FromDBType(wType, false, false).enumOleDbType;
}
if ((null != maxLen) && !dataRow.IsNull(maxLen, DataRowVersion.Default))
{
parameter.Size = Convert.ToInt32(dataRow[maxLen, DataRowVersion.Default], CultureInfo.InvariantCulture);
}
switch (parameter.OleDbType)
{
case OleDbType.Decimal:
case OleDbType.Numeric:
case OleDbType.VarNumeric:
if ((null != numericPrecision) && !dataRow.IsNull(numericPrecision, DataRowVersion.Default))
{
// @devnote: unguarded cast from Int16 to Byte
parameter.PrecisionInternal = (byte)Convert.ToInt16(dataRow[numericPrecision], CultureInfo.InvariantCulture);
}
if ((null != numericScale) && !dataRow.IsNull(numericScale, DataRowVersion.Default))
{
// @devnote: unguarded cast from Int16 to Byte
parameter.ScaleInternal = (byte)Convert.ToInt16(dataRow[numericScale], CultureInfo.InvariantCulture);
}
break;
case OleDbType.VarBinary:
case OleDbType.VarChar:
case OleDbType.VarWChar:
value = dataRow[backendtype !, DataRowVersion.Default];
// known difference: when getting the parameters for a sproc, the
// return value gets marked as a return value but for a sql stmt
// the return value gets marked as an output parameter.
static private OleDbParameter[] DeriveParametersFromStoredProcedure(OleDbConnection connection, OleDbCommand command)
{
OleDbParameter[] plist = new OleDbParameter[0];
if (connection.SupportSchemaRowset(OleDbSchemaGuid.Procedure_Parameters))
{
string quotePrefix, quoteSuffix;
connection.GetLiteralQuotes(ADP.DeriveParameters, out quotePrefix, out quoteSuffix);
Object[] parsed = MultipartIdentifier.ParseMultipartIdentifier(command.CommandText, quotePrefix, quoteSuffix, '.', 4, true, SR.OLEDB_OLEDBCommandText, false);
if (null == parsed[3])
{
throw ADP.NoStoredProcedureExists(command.CommandText);
}
Object[] restrictions = new object[4];
object value;
// Parse returns an enforced 4 part array
// 0) Server - ignored but removal would be a run-time breaking change from V1.0
// 1) Catalog
// 2) Schema
// 3) ProcedureName
// Restrictions array which is passed to OleDb API expects:
// 0) Catalog
// 1) Schema
// 2) ProcedureName
// 3) ParameterName (leave null)
// Copy from Parse format to OleDb API format
Array.Copy(parsed, 1, restrictions, 0, 3);
//if (cmdConnection.IsServer_msdaora) {
// restrictions[1] = Convert.ToString(cmdConnection.UserId).ToUpper();
//}
DataTable table = connection.GetSchemaRowset(OleDbSchemaGuid.Procedure_Parameters, restrictions);
if (null != table)
{
DataColumnCollection columns = table.Columns;
DataColumn parameterName = null;
DataColumn parameterDirection = null;
DataColumn dataType = null;
DataColumn maxLen = null;
DataColumn numericPrecision = null;
DataColumn numericScale = null;
DataColumn backendtype = null;
int index = columns.IndexOf(ODB.PARAMETER_NAME);
if (-1 != index)
{
parameterName = columns[index];
}
index = columns.IndexOf(ODB.PARAMETER_TYPE);
if (-1 != index)
{
parameterDirection = columns[index];
}
index = columns.IndexOf(ODB.DATA_TYPE);
if (-1 != index)
{
dataType = columns[index];
}
index = columns.IndexOf(ODB.CHARACTER_MAXIMUM_LENGTH);
if (-1 != index)
{
maxLen = columns[index];
}
index = columns.IndexOf(ODB.NUMERIC_PRECISION);
if (-1 != index)
{
numericPrecision = columns[index];
}
index = columns.IndexOf(ODB.NUMERIC_SCALE);
if (-1 != index)
{
numericScale = columns[index];
}
index = columns.IndexOf(ODB.TYPE_NAME);
if (-1 != index)
{
backendtype = columns[index];
}
DataRow[] dataRows = table.Select(null, ODB.ORDINAL_POSITION_ASC, DataViewRowState.CurrentRows);
plist = new OleDbParameter[dataRows.Length];
for (index = 0; index < dataRows.Length; ++index)
{
DataRow dataRow = dataRows[index];
OleDbParameter parameter = new OleDbParameter();
if ((null != parameterName) && !dataRow.IsNull(parameterName, DataRowVersion.Default))
{
// $CONSIDER - not trimming the @ from the beginning but to left the designer do that
parameter.ParameterName = Convert.ToString(dataRow[parameterName, DataRowVersion.Default], CultureInfo.InvariantCulture).TrimStart(new char[] { '@', ' ', ':' });
}
if ((null != parameterDirection) && !dataRow.IsNull(parameterDirection, DataRowVersion.Default))
{
short direction = Convert.ToInt16(dataRow[parameterDirection, DataRowVersion.Default], CultureInfo.InvariantCulture);
parameter.Direction = ConvertToParameterDirection(direction);
}
if ((null != dataType) && !dataRow.IsNull(dataType, DataRowVersion.Default))
{
// need to ping FromDBType, otherwise WChar->WChar when the user really wants VarWChar
short wType = Convert.ToInt16(dataRow[dataType, DataRowVersion.Default], CultureInfo.InvariantCulture);
parameter.OleDbType = NativeDBType.FromDBType(wType, false, false).enumOleDbType;
}
if ((null != maxLen) && !dataRow.IsNull(maxLen, DataRowVersion.Default))
{
parameter.Size = Convert.ToInt32(dataRow[maxLen, DataRowVersion.Default], CultureInfo.InvariantCulture);
}
switch (parameter.OleDbType)
{
case OleDbType.Decimal:
case OleDbType.Numeric:
case OleDbType.VarNumeric:
if ((null != numericPrecision) && !dataRow.IsNull(numericPrecision, DataRowVersion.Default))
{
// @devnote: unguarded cast from Int16 to Byte
parameter.PrecisionInternal = (Byte)Convert.ToInt16(dataRow[numericPrecision], CultureInfo.InvariantCulture);
}
if ((null != numericScale) && !dataRow.IsNull(numericScale, DataRowVersion.Default))
{
// @devnote: unguarded cast from Int16 to Byte
parameter.ScaleInternal = (Byte)Convert.ToInt16(dataRow[numericScale], CultureInfo.InvariantCulture);
}
break;
case OleDbType.VarBinary:
case OleDbType.VarChar:
case OleDbType.VarWChar:
value = dataRow[backendtype, DataRowVersion.Default];
if (value is string)
{
string backendtypename = ((string)value).ToLower(CultureInfo.InvariantCulture);
switch (backendtypename)
{
case "binary":
parameter.OleDbType = OleDbType.Binary;
break;
//case "varbinary":
// parameter.OleDbType = OleDbType.VarBinary;
// break;
case "image":
parameter.OleDbType = OleDbType.LongVarBinary;
break;
case "char":
parameter.OleDbType = OleDbType.Char;
break;
//case "varchar":
//case "varchar2":
// parameter.OleDbType = OleDbType.VarChar;
// break;
case "text":
parameter.OleDbType = OleDbType.LongVarChar;
break;
case "nchar":
parameter.OleDbType = OleDbType.WChar;
break;
//case "nvarchar":
// parameter.OleDbType = OleDbType.VarWChar;
case "ntext":
parameter.OleDbType = OleDbType.LongVarWChar;
break;
}
}
break;
}
//if (AdapterSwitches.OleDbSql.TraceVerbose) {
// ADP.Trace_Parameter("StoredProcedure", parameter);
//}
plist[index] = parameter;
}
}
if ((0 == plist.Length) && connection.SupportSchemaRowset(OleDbSchemaGuid.Procedures))
{
restrictions = new Object[4] {
null, null, command.CommandText, null
};
table = connection.GetSchemaRowset(OleDbSchemaGuid.Procedures, restrictions);
if (0 == table.Rows.Count)
{
throw ADP.NoStoredProcedureExists(command.CommandText);
}
}
}
else if (connection.SupportSchemaRowset(OleDbSchemaGuid.Procedures))
{
Object[] restrictions = new Object[4] {
null, null, command.CommandText, null
};
DataTable table = connection.GetSchemaRowset(OleDbSchemaGuid.Procedures, restrictions);
if (0 == table.Rows.Count)
{
throw ADP.NoStoredProcedureExists(command.CommandText);
}
// we don't ever expect a procedure with 0 parameters, they should have at least a return value
throw ODB.NoProviderSupportForSProcResetParameters(connection.Provider);
}
else
{
throw ODB.NoProviderSupportForSProcResetParameters(connection.Provider);
}
return(plist);
}
private DataTable GetDataSourceInformationTable(OleDbConnection connection, OleDbConnectionInternal internalConnection)
{
// verify that the data source information table is in the data set
DataTable dataSourceInformationTable = CollectionDataSet.Tables[DbMetaDataCollectionNames.DataSourceInformation];
if (dataSourceInformationTable == null)
{
throw ADP.UnableToBuildCollection(DbMetaDataCollectionNames.DataSourceInformation);
}
// copy the table filtering out any rows that don't apply to tho current version of the prrovider
dataSourceInformationTable = CloneAndFilterCollection(DbMetaDataCollectionNames.DataSourceInformation, null);
// after filtering there better be just one row
if (dataSourceInformationTable.Rows.Count != 1)
{
throw ADP.IncorrectNumberOfDataSourceInformationRows();
}
DataRow dataSourceInformation = dataSourceInformationTable.Rows[0];
// update the identifier separator
string catalogSeparatorPattern = internalConnection.GetLiteralInfo(ODB.DBLITERAL_CATALOG_SEPARATOR);
string schemaSeparatorPattern = internalConnection.GetLiteralInfo(ODB.DBLITERAL_SCHEMA_SEPARATOR);
if (catalogSeparatorPattern != null)
{
StringBuilder compositeSeparatorPattern = new StringBuilder();
StringBuilder patternEscaped = new StringBuilder();
ADP.EscapeSpecialCharacters(catalogSeparatorPattern, patternEscaped);
compositeSeparatorPattern.Append(patternEscaped.ToString());
if ((schemaSeparatorPattern != null) && (schemaSeparatorPattern != catalogSeparatorPattern))
{
compositeSeparatorPattern.Append("|");
patternEscaped.Length = 0;
ADP.EscapeSpecialCharacters(schemaSeparatorPattern, patternEscaped);
compositeSeparatorPattern.Append(patternEscaped.ToString());
}
dataSourceInformation[DbMetaDataColumnNames.CompositeIdentifierSeparatorPattern] = compositeSeparatorPattern.ToString();
}
else if (schemaSeparatorPattern != null)
{
StringBuilder patternEscaped = new StringBuilder();
ADP.EscapeSpecialCharacters(schemaSeparatorPattern, patternEscaped);
dataSourceInformation[DbMetaDataColumnNames.CompositeIdentifierSeparatorPattern] = patternEscaped.ToString();
;
}
// update the DataSourceProductName
object property;
property = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, ODB.DBPROP_DBMSNAME);
if (property != null)
{
dataSourceInformation[DbMetaDataColumnNames.DataSourceProductName] = (string)property;
}
// update the server version strings
dataSourceInformation[DbMetaDataColumnNames.DataSourceProductVersion] = ServerVersion;
dataSourceInformation[DbMetaDataColumnNames.DataSourceProductVersionNormalized] = ServerVersionNormalized;
// values that are the same for all OLE DB Providers.
dataSourceInformation[DbMetaDataColumnNames.ParameterMarkerFormat] = "?";
dataSourceInformation[DbMetaDataColumnNames.ParameterMarkerPattern] = "\\?";
dataSourceInformation[DbMetaDataColumnNames.ParameterNameMaxLength] = 0;
property = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, ODB.DBPROP_GROUPBY);
GroupByBehavior groupByBehavior = GroupByBehavior.Unknown;
if (property != null)
{
switch ((int)property)
{
case ODB.DBPROPVAL_GB_CONTAINS_SELECT:
groupByBehavior = GroupByBehavior.MustContainAll;
break;
case ODB.DBPROPVAL_GB_EQUALS_SELECT:
groupByBehavior = GroupByBehavior.ExactMatch;
break;
case ODB.DBPROPVAL_GB_NO_RELATION:
groupByBehavior = GroupByBehavior.Unrelated;
break;
case ODB.DBPROPVAL_GB_NOT_SUPPORTED:
groupByBehavior = GroupByBehavior.NotSupported;
break;
}
}
dataSourceInformation[DbMetaDataColumnNames.GroupByBehavior] = groupByBehavior;
SetIdentifierCase(DbMetaDataColumnNames.IdentifierCase, ODB.DBPROP_IDENTIFIERCASE, dataSourceInformation, connection);
SetIdentifierCase(DbMetaDataColumnNames.QuotedIdentifierCase, ODB.DBPROP_QUOTEDIDENTIFIERCASE, dataSourceInformation, connection);
property = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, ODB.DBPROP_ORDERBYCOLUNSINSELECT);
if (property != null)
{
dataSourceInformation[DbMetaDataColumnNames.OrderByColumnsInSelect] = (bool)property;
}
DataTable infoLiterals = internalConnection.BuildInfoLiterals();
if (infoLiterals != null)
{
DataRow[] tableNameRow = infoLiterals.Select("Literal = " + ODB.DBLITERAL_TABLE_NAME.ToString(CultureInfo.InvariantCulture));
if (tableNameRow != null)
{
object invalidCharsObject = tableNameRow[0]["InvalidChars"];
if (invalidCharsObject.GetType() == typeof(string))
{
string invalidChars = (string)invalidCharsObject;
object invalidStartingCharsObject = tableNameRow[0]["InvalidStartingChars"];
string invalidStartingChars;
if (invalidStartingCharsObject.GetType() == typeof(string))
{
invalidStartingChars = (string)invalidStartingCharsObject;
}
else
{
invalidStartingChars = invalidChars;
}
dataSourceInformation[DbMetaDataColumnNames.IdentifierPattern] =
BuildRegularExpression(invalidChars, invalidStartingChars);
}
}
}
// build the QuotedIdentifierPattern using the quote prefix and suffix from the provider and
// assuming that the quote suffix is escaped via repetion (i.e " becomes "")
string quotePrefix;
string quoteSuffix;
connection.GetLiteralQuotes(ADP.GetSchema, out quotePrefix, out quoteSuffix);
if (quotePrefix != null)
{
// if the quote suffix is null assume that it is the same as the prefix (See OLEDB spec
// IDBInfo::GetLiteralInfo DBLITERAL_QUOTE_SUFFIX.)
if (quoteSuffix == null)
{
quoteSuffix = quotePrefix;
}
// only know how to build the parttern if the suffix is 1 character
// in all other cases just leave the field null
if (quoteSuffix.Length == 1)
{
StringBuilder scratchStringBuilder = new StringBuilder();
ADP.EscapeSpecialCharacters(quoteSuffix, scratchStringBuilder);
string escapedQuoteSuffixString = scratchStringBuilder.ToString();
scratchStringBuilder.Length = 0;
ADP.EscapeSpecialCharacters(quotePrefix, scratchStringBuilder);
scratchStringBuilder.Append("(([^");
scratchStringBuilder.Append(escapedQuoteSuffixString);
scratchStringBuilder.Append("]|");
scratchStringBuilder.Append(escapedQuoteSuffixString);
scratchStringBuilder.Append(escapedQuoteSuffixString);
scratchStringBuilder.Append(")*)");
scratchStringBuilder.Append(escapedQuoteSuffixString);
dataSourceInformation[DbMetaDataColumnNames.QuotedIdentifierPattern] = scratchStringBuilder.ToString();
}
}
dataSourceInformationTable.AcceptChanges();
return(dataSourceInformationTable);
}
private DataTable GetDataSourceInformationTable(OleDbConnection connection, OleDbConnectionInternal internalConnection)
{
string str3;
string str4;
if (base.CollectionDataSet.Tables[DbMetaDataCollectionNames.DataSourceInformation] == null)
{
throw ADP.UnableToBuildCollection(DbMetaDataCollectionNames.DataSourceInformation);
}
DataTable table = base.CloneAndFilterCollection(DbMetaDataCollectionNames.DataSourceInformation, null);
if (table.Rows.Count != 1)
{
throw ADP.IncorrectNumberOfDataSourceInformationRows();
}
DataRow row = table.Rows[0];
string literalInfo = internalConnection.GetLiteralInfo(3);
string unescapedString = internalConnection.GetLiteralInfo(0x1b);
if (literalInfo != null)
{
StringBuilder builder3 = new StringBuilder();
StringBuilder escapedString = new StringBuilder();
ADP.EscapeSpecialCharacters(literalInfo, escapedString);
builder3.Append(escapedString.ToString());
if ((unescapedString != null) && (unescapedString != literalInfo))
{
builder3.Append("|");
escapedString.Length = 0;
ADP.EscapeSpecialCharacters(unescapedString, escapedString);
builder3.Append(escapedString.ToString());
}
row[DbMetaDataColumnNames.CompositeIdentifierSeparatorPattern] = builder3.ToString();
}
else if (unescapedString != null)
{
StringBuilder builder4 = new StringBuilder();
ADP.EscapeSpecialCharacters(unescapedString, builder4);
row[DbMetaDataColumnNames.CompositeIdentifierSeparatorPattern] = builder4.ToString();
}
object dataSourcePropertyValue = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, 40);
if (dataSourcePropertyValue != null)
{
row[DbMetaDataColumnNames.DataSourceProductName] = (string) dataSourcePropertyValue;
}
row[DbMetaDataColumnNames.DataSourceProductVersion] = base.ServerVersion;
row[DbMetaDataColumnNames.DataSourceProductVersionNormalized] = base.ServerVersionNormalized;
row[DbMetaDataColumnNames.ParameterMarkerFormat] = "?";
row[DbMetaDataColumnNames.ParameterMarkerPattern] = @"\?";
row[DbMetaDataColumnNames.ParameterNameMaxLength] = 0;
dataSourcePropertyValue = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, 0x2c);
GroupByBehavior unknown = GroupByBehavior.Unknown;
if (dataSourcePropertyValue != null)
{
switch (((int) dataSourcePropertyValue))
{
case 1:
unknown = GroupByBehavior.NotSupported;
break;
case 2:
unknown = GroupByBehavior.ExactMatch;
break;
case 4:
unknown = GroupByBehavior.MustContainAll;
break;
case 8:
unknown = GroupByBehavior.Unrelated;
break;
}
}
row[DbMetaDataColumnNames.GroupByBehavior] = unknown;
this.SetIdentifierCase(DbMetaDataColumnNames.IdentifierCase, 0x2e, row, connection);
this.SetIdentifierCase(DbMetaDataColumnNames.QuotedIdentifierCase, 100, row, connection);
dataSourcePropertyValue = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, 0x55);
if (dataSourcePropertyValue != null)
{
row[DbMetaDataColumnNames.OrderByColumnsInSelect] = (bool) dataSourcePropertyValue;
}
DataTable table2 = internalConnection.BuildInfoLiterals();
if (table2 != null)
{
DataRow[] rowArray = table2.Select("Literal = " + 0x11.ToString(CultureInfo.InvariantCulture));
if (rowArray != null)
{
object obj4 = rowArray[0]["InvalidChars"];
if (obj4.GetType() == typeof(string))
{
string str6;
string invalidChars = (string) obj4;
object obj3 = rowArray[0]["InvalidStartingChars"];
if (obj3.GetType() == typeof(string))
{
str6 = (string) obj3;
}
else
{
str6 = invalidChars;
}
row[DbMetaDataColumnNames.IdentifierPattern] = this.BuildRegularExpression(invalidChars, str6);
}
}
}
connection.GetLiteralQuotes("GetSchema", out str4, out str3);
if (str4 != null)
{
if (str3 == null)
{
str3 = str4;
}
if (str3.Length == 1)
{
StringBuilder builder = new StringBuilder();
ADP.EscapeSpecialCharacters(str3, builder);
string str2 = builder.ToString();
builder.Length = 0;
ADP.EscapeSpecialCharacters(str4, builder);
builder.Append("(([^");
builder.Append(str2);
builder.Append("]|");
builder.Append(str2);
builder.Append(str2);
builder.Append(")*)");
builder.Append(str2);
row[DbMetaDataColumnNames.QuotedIdentifierPattern] = builder.ToString();
}
}
table.AcceptChanges();
return table;
}
private static OleDbParameter[] DeriveParametersFromStoredProcedure(OleDbConnection connection, OleDbCommand command)
{
OleDbParameter[] parameterArray = new OleDbParameter[0];
if (connection.SupportSchemaRowset(OleDbSchemaGuid.Procedure_Parameters))
{
string str3;
string str4;
connection.GetLiteralQuotes("DeriveParameters", out str4, out str3);
object[] sourceArray = MultipartIdentifier.ParseMultipartIdentifier(command.CommandText, str4, str3, '.', 4, true, "OLEDB_OLEDBCommandText", false);
if (sourceArray[3] == null)
{
throw ADP.NoStoredProcedureExists(command.CommandText);
}
object[] destinationArray = new object[4];
Array.Copy(sourceArray, 1, destinationArray, 0, 3);
DataTable schemaRowset = connection.GetSchemaRowset(OleDbSchemaGuid.Procedure_Parameters, destinationArray);
if (schemaRowset != null)
{
DataColumnCollection columns = schemaRowset.Columns;
DataColumn column6 = null;
DataColumn column5 = null;
DataColumn column4 = null;
DataColumn column3 = null;
DataColumn column2 = null;
DataColumn column = null;
DataColumn column7 = null;
int index = columns.IndexOf("PARAMETER_NAME");
if (-1 != index)
{
column6 = columns[index];
}
index = columns.IndexOf("PARAMETER_TYPE");
if (-1 != index)
{
column5 = columns[index];
}
index = columns.IndexOf("DATA_TYPE");
if (-1 != index)
{
column4 = columns[index];
}
index = columns.IndexOf("CHARACTER_MAXIMUM_LENGTH");
if (-1 != index)
{
column3 = columns[index];
}
index = columns.IndexOf("NUMERIC_PRECISION");
if (-1 != index)
{
column2 = columns[index];
}
index = columns.IndexOf("NUMERIC_SCALE");
if (-1 != index)
{
column = columns[index];
}
index = columns.IndexOf("TYPE_NAME");
if (-1 != index)
{
column7 = columns[index];
}
DataRow[] rowArray = schemaRowset.Select(null, "ORDINAL_POSITION ASC", DataViewRowState.CurrentRows);
parameterArray = new OleDbParameter[rowArray.Length];
for (index = 0; index < rowArray.Length; index++)
{
DataRow row = rowArray[index];
OleDbParameter parameter = new OleDbParameter();
if ((column6 != null) && !row.IsNull(column6, DataRowVersion.Default))
{
parameter.ParameterName = Convert.ToString(row[column6, DataRowVersion.Default], CultureInfo.InvariantCulture).TrimStart(new char[] { '@', ' ', ':' });
}
if ((column5 != null) && !row.IsNull(column5, DataRowVersion.Default))
{
short num3 = Convert.ToInt16(row[column5, DataRowVersion.Default], CultureInfo.InvariantCulture);
parameter.Direction = ConvertToParameterDirection(num3);
}
if ((column4 != null) && !row.IsNull(column4, DataRowVersion.Default))
{
short dbType = Convert.ToInt16(row[column4, DataRowVersion.Default], CultureInfo.InvariantCulture);
parameter.OleDbType = NativeDBType.FromDBType(dbType, false, false).enumOleDbType;
}
if ((column3 != null) && !row.IsNull(column3, DataRowVersion.Default))
{
parameter.Size = Convert.ToInt32(row[column3, DataRowVersion.Default], CultureInfo.InvariantCulture);
}
switch (parameter.OleDbType)
{
case OleDbType.VarChar:
case OleDbType.VarWChar:
case OleDbType.VarBinary:
{
string str;
object obj2 = row[column7, DataRowVersion.Default];
if ((obj2 is string) && ((str = ((string)obj2).ToLower(CultureInfo.InvariantCulture)) != null))
{
if (str == "binary")
{
break;
}
if (str == "image")
{
goto Label_03B9;
}
if (str == "char")
{
goto Label_03C6;
}
if (str == "text")
{
goto Label_03D3;
}
if (str == "nchar")
{
goto Label_03E0;
}
if (str == "ntext")
{
goto Label_03ED;
}
}
goto Label_03F8;
}
case OleDbType.VarNumeric:
case OleDbType.Decimal:
case OleDbType.Numeric:
if ((column2 != null) && !row.IsNull(column2, DataRowVersion.Default))
{
parameter.PrecisionInternal = (byte)Convert.ToInt16(row[column2], CultureInfo.InvariantCulture);
}
if ((column != null) && !row.IsNull(column, DataRowVersion.Default))
{
parameter.ScaleInternal = (byte)Convert.ToInt16(row[column], CultureInfo.InvariantCulture);
}
goto Label_03F8;
default:
goto Label_03F8;
}
parameter.OleDbType = OleDbType.Binary;
goto Label_03F8;
Label_03B9:
parameter.OleDbType = OleDbType.LongVarBinary;
goto Label_03F8;
Label_03C6:
parameter.OleDbType = OleDbType.Char;
goto Label_03F8;
Label_03D3:
parameter.OleDbType = OleDbType.LongVarChar;
goto Label_03F8;
Label_03E0:
parameter.OleDbType = OleDbType.WChar;
goto Label_03F8;
Label_03ED:
parameter.OleDbType = OleDbType.LongVarWChar;
Label_03F8:
parameterArray[index] = parameter;
}
}
if ((parameterArray.Length == 0) && connection.SupportSchemaRowset(OleDbSchemaGuid.Procedures))
{
object[] objArray3 = new object[4];
objArray3[2] = command.CommandText;
destinationArray = objArray3;
if (connection.GetSchemaRowset(OleDbSchemaGuid.Procedures, destinationArray).Rows.Count == 0)
{
throw ADP.NoStoredProcedureExists(command.CommandText);
}
}
return(parameterArray);
}
if (!connection.SupportSchemaRowset(OleDbSchemaGuid.Procedures))
{
throw ODB.NoProviderSupportForSProcResetParameters(connection.Provider);
}
object[] objArray2 = new object[4];
objArray2[2] = command.CommandText;
object[] restrictions = objArray2;
if (connection.GetSchemaRowset(OleDbSchemaGuid.Procedures, restrictions).Rows.Count == 0)
{
throw ADP.NoStoredProcedureExists(command.CommandText);
}
throw ODB.NoProviderSupportForSProcResetParameters(connection.Provider);
}
private DataTable GetDataSourceInformationTable(OleDbConnection connection, OleDbConnectionInternal internalConnection)
{
string str3;
string str4;
if (base.CollectionDataSet.Tables[DbMetaDataCollectionNames.DataSourceInformation] == null)
{
throw ADP.UnableToBuildCollection(DbMetaDataCollectionNames.DataSourceInformation);
}
DataTable table = base.CloneAndFilterCollection(DbMetaDataCollectionNames.DataSourceInformation, null);
if (table.Rows.Count != 1)
{
throw ADP.IncorrectNumberOfDataSourceInformationRows();
}
DataRow row = table.Rows[0];
string literalInfo = internalConnection.GetLiteralInfo(3);
string unescapedString = internalConnection.GetLiteralInfo(0x1b);
if (literalInfo != null)
{
StringBuilder builder3 = new StringBuilder();
StringBuilder escapedString = new StringBuilder();
ADP.EscapeSpecialCharacters(literalInfo, escapedString);
builder3.Append(escapedString.ToString());
if ((unescapedString != null) && (unescapedString != literalInfo))
{
builder3.Append("|");
escapedString.Length = 0;
ADP.EscapeSpecialCharacters(unescapedString, escapedString);
builder3.Append(escapedString.ToString());
}
row[DbMetaDataColumnNames.CompositeIdentifierSeparatorPattern] = builder3.ToString();
}
else if (unescapedString != null)
{
StringBuilder builder4 = new StringBuilder();
ADP.EscapeSpecialCharacters(unescapedString, builder4);
row[DbMetaDataColumnNames.CompositeIdentifierSeparatorPattern] = builder4.ToString();
}
object dataSourcePropertyValue = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, 40);
if (dataSourcePropertyValue != null)
{
row[DbMetaDataColumnNames.DataSourceProductName] = (string)dataSourcePropertyValue;
}
row[DbMetaDataColumnNames.DataSourceProductVersion] = base.ServerVersion;
row[DbMetaDataColumnNames.DataSourceProductVersionNormalized] = base.ServerVersionNormalized;
row[DbMetaDataColumnNames.ParameterMarkerFormat] = "?";
row[DbMetaDataColumnNames.ParameterMarkerPattern] = @"\?";
row[DbMetaDataColumnNames.ParameterNameMaxLength] = 0;
dataSourcePropertyValue = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, 0x2c);
GroupByBehavior unknown = GroupByBehavior.Unknown;
if (dataSourcePropertyValue != null)
{
switch (((int)dataSourcePropertyValue))
{
case 1:
unknown = GroupByBehavior.NotSupported;
break;
case 2:
unknown = GroupByBehavior.ExactMatch;
break;
case 4:
unknown = GroupByBehavior.MustContainAll;
break;
case 8:
unknown = GroupByBehavior.Unrelated;
break;
}
}
row[DbMetaDataColumnNames.GroupByBehavior] = unknown;
this.SetIdentifierCase(DbMetaDataColumnNames.IdentifierCase, 0x2e, row, connection);
this.SetIdentifierCase(DbMetaDataColumnNames.QuotedIdentifierCase, 100, row, connection);
dataSourcePropertyValue = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo, 0x55);
if (dataSourcePropertyValue != null)
{
row[DbMetaDataColumnNames.OrderByColumnsInSelect] = (bool)dataSourcePropertyValue;
}
DataTable table2 = internalConnection.BuildInfoLiterals();
if (table2 != null)
{
DataRow[] rowArray = table2.Select("Literal = " + 0x11.ToString(CultureInfo.InvariantCulture));
if (rowArray != null)
{
object obj4 = rowArray[0]["InvalidChars"];
if (obj4.GetType() == typeof(string))
{
string str6;
string invalidChars = (string)obj4;
object obj3 = rowArray[0]["InvalidStartingChars"];
if (obj3.GetType() == typeof(string))
{
str6 = (string)obj3;
}
else
{
str6 = invalidChars;
}
row[DbMetaDataColumnNames.IdentifierPattern] = this.BuildRegularExpression(invalidChars, str6);
}
}
}
connection.GetLiteralQuotes("GetSchema", out str4, out str3);
if (str4 != null)
{
if (str3 == null)
{
str3 = str4;
}
if (str3.Length == 1)
{
StringBuilder builder = new StringBuilder();
ADP.EscapeSpecialCharacters(str3, builder);
string str2 = builder.ToString();
builder.Length = 0;
ADP.EscapeSpecialCharacters(str4, builder);
builder.Append("(([^");
builder.Append(str2);
builder.Append("]|");
builder.Append(str2);
builder.Append(str2);
builder.Append(")*)");
builder.Append(str2);
row[DbMetaDataColumnNames.QuotedIdentifierPattern] = builder.ToString();
}
}
table.AcceptChanges();
return(table);
}
public string UnquoteIdentifier(string quotedIdentifier, OleDbConnection connection){
ADP.CheckArgumentNull(quotedIdentifier, "quotedIdentifier");
// if the user has specificed a prefix use the user specified prefix and suffix
// otherwise get them from the provider
string quotePrefix = QuotePrefix;
string quoteSuffix = QuoteSuffix;
if (ADP.IsEmpty(quotePrefix) == true) {
if (connection == null) {
// VSTFDEVDIV 479567: use the adapter's connection if UnquoteIdentifier was called from
// DbCommandBuilder instance (which does not have an overload that gets connection object)
connection = base.GetConnection() as OleDbConnection;
if (connection == null) {
throw ADP.QuotePrefixNotSet(ADP.UnquoteIdentifier);
}
}
connection.GetLiteralQuotes(ADP.UnquoteIdentifier, out quotePrefix, out quoteSuffix);
// if the quote suffix is null assume that it is the same as the prefix (See OLEDB spec
// IDBInfo::GetLiteralInfo DBLITERAL_QUOTE_SUFFIX.)
if (quoteSuffix == null) {
quoteSuffix = quotePrefix;
}
}
String unquotedIdentifier;
// ignoring the return value because it is acceptable for the quotedString to not be quoted in this
// context.
ADP.RemoveStringQuotes(quotePrefix, quoteSuffix, quotedIdentifier, out unquotedIdentifier);
return unquotedIdentifier;
}
// known difference: when getting the parameters for a sproc, the
// return value gets marked as a return value but for a sql stmt
// the return value gets marked as an output parameter.
static private OleDbParameter[] DeriveParametersFromStoredProcedure(OleDbConnection connection, OleDbCommand command) {
OleDbParameter[] plist = new OleDbParameter[0];
if (connection.SupportSchemaRowset(OleDbSchemaGuid.Procedure_Parameters)) {
string quotePrefix, quoteSuffix;
connection.GetLiteralQuotes(ADP.DeriveParameters, out quotePrefix, out quoteSuffix);
Object[] parsed = MultipartIdentifier.ParseMultipartIdentifier(command.CommandText, quotePrefix, quoteSuffix, '.', 4, true, Res.OLEDB_OLEDBCommandText, false); // MDAC 70930
if (null == parsed[3]) {
throw ADP.NoStoredProcedureExists(command.CommandText);
}
Object[] restrictions = new object[4];
object value;
// Parse returns an enforced 4 part array
// 0) Server - ignored but removal would be a run-time breaking change from V1.0
// 1) Catalog
// 2) Schema
// 3) ProcedureName
// Restrictions array which is passed to OleDb API expects:
// 0) Catalog
// 1) Schema
// 2) ProcedureName
// 3) ParameterName (leave null)
// Copy from Parse format to OleDb API format
Array.Copy(parsed, 1, restrictions, 0, 3);
//if (cmdConnection.IsServer_msdaora) {
// restrictions[1] = Convert.ToString(cmdConnection.UserId).ToUpper();
//}
DataTable table = connection.GetSchemaRowset(OleDbSchemaGuid.Procedure_Parameters, restrictions);
if (null != table) {
DataColumnCollection columns = table.Columns;
DataColumn parameterName = null;
DataColumn parameterDirection = null;
DataColumn dataType = null;
DataColumn maxLen = null;
DataColumn numericPrecision = null;
DataColumn numericScale = null;
DataColumn backendtype = null;
int index = columns.IndexOf(ODB.PARAMETER_NAME);
if (-1 != index) parameterName = columns[index];
index = columns.IndexOf(ODB.PARAMETER_TYPE);
if (-1 != index) parameterDirection = columns[index];
index = columns.IndexOf(ODB.DATA_TYPE);
if (-1 != index) dataType = columns[index];
index = columns.IndexOf(ODB.CHARACTER_MAXIMUM_LENGTH);
if (-1 != index) maxLen = columns[index];
index = columns.IndexOf(ODB.NUMERIC_PRECISION);
if (-1 != index) numericPrecision = columns[index];
index = columns.IndexOf(ODB.NUMERIC_SCALE);
if (-1 != index) numericScale = columns[index];
index = columns.IndexOf(ODB.TYPE_NAME); // MDAC 72315
if (-1 != index) backendtype = columns[index];
DataRow[] dataRows = table.Select(null, ODB.ORDINAL_POSITION_ASC, DataViewRowState.CurrentRows); // MDAC 70928
plist = new OleDbParameter[dataRows.Length];
for(index = 0; index < dataRows.Length; ++index) {
DataRow dataRow = dataRows[index];
OleDbParameter parameter = new OleDbParameter();
if ((null != parameterName) && !dataRow.IsNull(parameterName, DataRowVersion.Default)) {
// $
parameter.ParameterName = Convert.ToString(dataRow[parameterName, DataRowVersion.Default], CultureInfo.InvariantCulture).TrimStart(new char[] { '@', ' ', ':'});
}
if ((null != parameterDirection) && !dataRow.IsNull(parameterDirection, DataRowVersion.Default)) {
short direction = Convert.ToInt16(dataRow[parameterDirection, DataRowVersion.Default], CultureInfo.InvariantCulture);
parameter.Direction = ConvertToParameterDirection(direction);
}
if ((null != dataType) && !dataRow.IsNull(dataType, DataRowVersion.Default)) {
// need to ping FromDBType, otherwise WChar->WChar when the user really wants VarWChar
short wType = Convert.ToInt16(dataRow[dataType, DataRowVersion.Default], CultureInfo.InvariantCulture);
parameter.OleDbType = NativeDBType.FromDBType(wType, false, false).enumOleDbType;
}
if ((null != maxLen) && !dataRow.IsNull(maxLen, DataRowVersion.Default)) {
parameter.Size = Convert.ToInt32(dataRow[maxLen, DataRowVersion.Default], CultureInfo.InvariantCulture);
}
switch(parameter.OleDbType) {
case OleDbType.Decimal:
case OleDbType.Numeric:
case OleDbType.VarNumeric:
if ((null != numericPrecision) && !dataRow.IsNull(numericPrecision, DataRowVersion.Default)) {
// @devnote: unguarded cast from Int16 to Byte
parameter.PrecisionInternal = (Byte) Convert.ToInt16(dataRow[numericPrecision], CultureInfo.InvariantCulture);
}
if ((null != numericScale) && !dataRow.IsNull(numericScale, DataRowVersion.Default)) {
// @devnote: unguarded cast from Int16 to Byte
parameter.ScaleInternal = (Byte) Convert.ToInt16(dataRow[numericScale], CultureInfo.InvariantCulture);
}
break;
case OleDbType.VarBinary: // MDAC 72315
case OleDbType.VarChar:
case OleDbType.VarWChar:
value = dataRow[backendtype, DataRowVersion.Default];
if (value is string) {
string backendtypename = ((string) value).ToLower(CultureInfo.InvariantCulture);
switch(backendtypename) {
case "binary":
parameter.OleDbType = OleDbType.Binary;
break;
//case "varbinary":
// parameter.OleDbType = OleDbType.VarBinary;
// break;
case "image":
parameter.OleDbType = OleDbType.LongVarBinary;
break;
case "char":
parameter.OleDbType = OleDbType.Char;
break;
//case "varchar":
//case "varchar2":
// parameter.OleDbType = OleDbType.VarChar;
// break;
case "text":
parameter.OleDbType = OleDbType.LongVarChar;
break;
case "nchar":
parameter.OleDbType = OleDbType.WChar;
break;
//case "nvarchar":
// parameter.OleDbType = OleDbType.VarWChar;
case "ntext":
parameter.OleDbType = OleDbType.LongVarWChar;
break;
}
}
break;
}
//if (AdapterSwitches.OleDbSql.TraceVerbose) {
// ADP.Trace_Parameter("StoredProcedure", parameter);
//}
plist[index] = parameter;
}
}
if ((0 == plist.Length) && connection.SupportSchemaRowset(OleDbSchemaGuid.Procedures)) {
restrictions = new Object[4] { null, null, command.CommandText, null};
table = connection.GetSchemaRowset(OleDbSchemaGuid.Procedures, restrictions);
if (0 == table.Rows.Count) {
throw ADP.NoStoredProcedureExists(command.CommandText);
}
}
}
else if (connection.SupportSchemaRowset(OleDbSchemaGuid.Procedures)) {
Object[] restrictions = new Object[4] { null, null, command.CommandText, null};
DataTable table = connection.GetSchemaRowset(OleDbSchemaGuid.Procedures, restrictions);
if (0 == table.Rows.Count) {
throw ADP.NoStoredProcedureExists(command.CommandText);
}
// we don't ever expect a procedure with 0 parameters, they should have at least a return value
throw ODB.NoProviderSupportForSProcResetParameters(connection.Provider); // MDAC 71968
}
else {
throw ODB.NoProviderSupportForSProcResetParameters(connection.Provider); // MDAC 70918
}
return plist;
}
private DataTable GetDataSourceInformationTable(OleDbConnection connection, OleDbConnectionInternal internalConnection){
// verify that the data source information table is in the data set
DataTable dataSourceInformationTable = CollectionDataSet.Tables[DbMetaDataCollectionNames.DataSourceInformation];
if (dataSourceInformationTable == null){
throw ADP.UnableToBuildCollection(DbMetaDataCollectionNames.DataSourceInformation);
}
// copy the table filtering out any rows that don't apply to tho current version of the prrovider
dataSourceInformationTable = CloneAndFilterCollection(DbMetaDataCollectionNames.DataSourceInformation, null);
// after filtering there better be just one row
if (dataSourceInformationTable.Rows.Count != 1){
throw ADP.IncorrectNumberOfDataSourceInformationRows();
}
DataRow dataSourceInformation = dataSourceInformationTable.Rows[0];
// update the identifier separator
string catalogSeparatorPattern = internalConnection.GetLiteralInfo(ODB.DBLITERAL_CATALOG_SEPARATOR);
string schemaSeparatorPattern = internalConnection.GetLiteralInfo(ODB.DBLITERAL_SCHEMA_SEPARATOR);
if (catalogSeparatorPattern != null) {
StringBuilder compositeSeparatorPattern = new StringBuilder();
StringBuilder patternEscaped = new StringBuilder();
ADP.EscapeSpecialCharacters(catalogSeparatorPattern,patternEscaped);
compositeSeparatorPattern.Append(patternEscaped.ToString());
if ((schemaSeparatorPattern != null) && (schemaSeparatorPattern != catalogSeparatorPattern)) {
compositeSeparatorPattern.Append("|");
patternEscaped.Length = 0;
ADP.EscapeSpecialCharacters(schemaSeparatorPattern,patternEscaped);
compositeSeparatorPattern.Append(patternEscaped.ToString());
}
dataSourceInformation[DbMetaDataColumnNames.CompositeIdentifierSeparatorPattern] = compositeSeparatorPattern.ToString();
}
else if (schemaSeparatorPattern != null){
StringBuilder patternEscaped = new StringBuilder();
ADP.EscapeSpecialCharacters(schemaSeparatorPattern, patternEscaped);
dataSourceInformation[DbMetaDataColumnNames.CompositeIdentifierSeparatorPattern] = patternEscaped.ToString();;
}
// update the DataSourceProductName
object property;
property = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo,ODB.DBPROP_DBMSNAME);
if (property != null) {
dataSourceInformation[DbMetaDataColumnNames.DataSourceProductName] = (string) property;
}
// update the server version strings
dataSourceInformation[DbMetaDataColumnNames.DataSourceProductVersion] = ServerVersion;
dataSourceInformation[DbMetaDataColumnNames.DataSourceProductVersionNormalized] = ServerVersionNormalized;
// values that are the same for all OLE DB Providers. See SQLBU 308529
dataSourceInformation[DbMetaDataColumnNames.ParameterMarkerFormat] = "?";
dataSourceInformation[DbMetaDataColumnNames.ParameterMarkerPattern] = "\\?";
dataSourceInformation[DbMetaDataColumnNames.ParameterNameMaxLength] = 0;
property = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo,ODB.DBPROP_GROUPBY);
GroupByBehavior groupByBehavior = GroupByBehavior.Unknown;
if (property != null) {
switch ((int)property) {
case ODB.DBPROPVAL_GB_CONTAINS_SELECT:
groupByBehavior = GroupByBehavior.MustContainAll;
break;
case ODB.DBPROPVAL_GB_EQUALS_SELECT:
groupByBehavior = GroupByBehavior.ExactMatch;
break;
case ODB.DBPROPVAL_GB_NO_RELATION:
groupByBehavior = GroupByBehavior.Unrelated;
break;
case ODB.DBPROPVAL_GB_NOT_SUPPORTED:
groupByBehavior = GroupByBehavior.NotSupported;
break;
}
}
dataSourceInformation[DbMetaDataColumnNames.GroupByBehavior] = groupByBehavior;
SetIdentifierCase(DbMetaDataColumnNames.IdentifierCase,ODB.DBPROP_IDENTIFIERCASE,dataSourceInformation, connection);
SetIdentifierCase(DbMetaDataColumnNames.QuotedIdentifierCase,ODB.DBPROP_QUOTEDIDENTIFIERCASE,dataSourceInformation, connection);
property = connection.GetDataSourcePropertyValue(OleDbPropertySetGuid.DataSourceInfo,ODB.DBPROP_ORDERBYCOLUNSINSELECT);
if (property != null) {
dataSourceInformation[DbMetaDataColumnNames.OrderByColumnsInSelect] = (bool) property;
}
DataTable infoLiterals = internalConnection.BuildInfoLiterals();
if (infoLiterals != null){
DataRow[] tableNameRow = infoLiterals.Select("Literal = " + ODB.DBLITERAL_TABLE_NAME.ToString(CultureInfo.InvariantCulture));
if (tableNameRow != null) {
object invalidCharsObject = tableNameRow[0]["InvalidChars"];
if (invalidCharsObject.GetType() == typeof(string)) {
string invalidChars = (string)invalidCharsObject;
object invalidStartingCharsObject = tableNameRow[0]["InvalidStartingChars"];
string invalidStartingChars;
if (invalidStartingCharsObject.GetType() == typeof(string)) {
invalidStartingChars = (string)invalidStartingCharsObject;
}
else {
invalidStartingChars = invalidChars;
}
dataSourceInformation[DbMetaDataColumnNames.IdentifierPattern] =
BuildRegularExpression(invalidChars,invalidStartingChars);
}
}
}
// build the QuotedIdentifierPattern using the quote prefix and suffix from the provider and
// assuming that the quote suffix is escaped via repetion (i.e " becomes "")
string quotePrefix;
string quoteSuffix;
connection.GetLiteralQuotes(ADP.GetSchema, out quotePrefix, out quoteSuffix);
if (quotePrefix != null){
// if the quote suffix is null assume that it is the same as the prefix (See OLEDB spec
// IDBInfo::GetLiteralInfo DBLITERAL_QUOTE_SUFFIX.)
if (quoteSuffix == null) {
quoteSuffix = quotePrefix;
}
// only know how to build the parttern if the suffix is 1 character
// in all other cases just leave the field null
if (quoteSuffix.Length == 1) {
StringBuilder scratchStringBuilder = new StringBuilder();
ADP.EscapeSpecialCharacters(quoteSuffix,scratchStringBuilder );
string escapedQuoteSuffixString = scratchStringBuilder.ToString();
scratchStringBuilder.Length = 0;
ADP.EscapeSpecialCharacters(quotePrefix, scratchStringBuilder);
scratchStringBuilder.Append("(([^");
scratchStringBuilder.Append(escapedQuoteSuffixString);
scratchStringBuilder.Append("]|");
scratchStringBuilder.Append(escapedQuoteSuffixString);
scratchStringBuilder.Append(escapedQuoteSuffixString);
scratchStringBuilder.Append(")*)");
scratchStringBuilder.Append(escapedQuoteSuffixString);
dataSourceInformation[DbMetaDataColumnNames.QuotedIdentifierPattern] = scratchStringBuilder.ToString();
}
}
dataSourceInformationTable.AcceptChanges();
return dataSourceInformationTable;
}
