public DbSynchro(DbInterpreter sourceInterpreter, DbInterpreter targetInterpreter)
        {
            this.sourceInterpreter = sourceInterpreter;
            this.targetInterpreter = targetInterpreter;

            this.tableManager          = new TableManager(this.targetInterpreter);
            this.targetScriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(targetInterpreter);
        }
示例#2
0
        public async Task <ContentSaveResult> GenerateChangeScripts(SchemaDesignerInfo schemaDesignerInfo, bool isNew)
        {
            string validateMsg;

            Table table = null;

            try
            {
                bool isValid = this.ValidateModel(schemaDesignerInfo, out validateMsg);

                if (!isValid)
                {
                    return(this.GetFaultSaveResult(validateMsg));
                }

                TableDesignerGenerateScriptsData scriptsData = new TableDesignerGenerateScriptsData();

                SchemaInfo schemaInfo = this.GetSchemaInfo(schemaDesignerInfo);

                table = schemaInfo.Tables.First();

                scriptsData.Table = table;

                DbScriptGenerator scriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(this.dbInterpreter);

                List <Script> scripts = new List <Script>();

                if (isNew)
                {
                    ScriptBuilder scriptBuilder = scriptGenerator.GenerateSchemaScripts(schemaInfo);

                    scripts = scriptBuilder.Scripts;
                }
                else
                {
                    #region Alter Table
                    scripts = new List <Script>();

                    TableDesignerInfo tableDesignerInfo = schemaDesignerInfo.TableDesignerInfo;

                    SchemaInfoFilter filter = new SchemaInfoFilter()
                    {
                        Strict = true
                    };
                    filter.TableNames         = new string[] { tableDesignerInfo.OldName };
                    filter.DatabaseObjectType = DatabaseObjectType.Table
                                                | DatabaseObjectType.TableColumn
                                                | DatabaseObjectType.TablePrimaryKey
                                                | DatabaseObjectType.TableForeignKey
                                                | DatabaseObjectType.TableIndex
                                                | DatabaseObjectType.TableConstraint;

                    if (this.dbInterpreter.DatabaseType == DatabaseType.Oracle)
                    {
                        this.dbInterpreter.Option.IncludePrimaryKeyWhenGetTableIndex = true;
                    }

                    SchemaInfo oldSchemaInfo = await this.dbInterpreter.GetSchemaInfoAsync(filter);

                    Table oldTable = oldSchemaInfo.Tables.FirstOrDefault();

                    if (oldTable == null)
                    {
                        return(this.GetFaultSaveResult($"Table \"{tableDesignerInfo.OldName}\" is not existed"));
                    }

                    if (tableDesignerInfo.OldName != tableDesignerInfo.Name)
                    {
                        scripts.Add(scriptGenerator.RenameTable(new Table()
                        {
                            Owner = tableDesignerInfo.Owner, Name = tableDesignerInfo.OldName
                        }, tableDesignerInfo.Name));
                    }

                    if (!this.IsStringEquals(tableDesignerInfo.Comment, oldTable.Comment))
                    {
                        oldTable.Comment = tableDesignerInfo.Comment;
                        scripts.Add(scriptGenerator.SetTableComment(oldTable, string.IsNullOrEmpty(oldTable.Comment)));
                    }

                    #region Columns
                    List <TableColumnDesingerInfo> columnDesingerInfos = schemaDesignerInfo.TableColumnDesingerInfos;
                    List <TableColumn>             oldColumns          = oldSchemaInfo.TableColumns;

                    List <TableDefaultValueConstraint> defaultValueConstraints = null;

                    if (this.dbInterpreter.DatabaseType == DatabaseType.SqlServer)
                    {
                        defaultValueConstraints = await(this.dbInterpreter as SqlServerInterpreter).GetTableDefautValueConstraintsAsync(filter);
                    }

                    foreach (TableColumnDesingerInfo columnDesignerInfo in columnDesingerInfos)
                    {
                        TableColumn oldColumn = oldColumns.FirstOrDefault(item => item.Name.ToLower() == columnDesignerInfo.Name.ToLower());
                        TableColumn newColumn = schemaInfo.TableColumns.FirstOrDefault(item => item.Name == columnDesignerInfo.Name);

                        if (oldColumn == null)
                        {
                            scripts.Add(scriptGenerator.AddTableColumn(table, newColumn));
                        }
                        else
                        {
                            if (!this.IsValueEqualsIgnoreCase(columnDesignerInfo.OldName, columnDesignerInfo.Name))
                            {
                                scripts.Add(scriptGenerator.RenameTableColumn(table, oldColumn, newColumn.Name));
                            }

                            bool isDefaultValueEquals = this.IsStringEquals(ValueHelper.GetTrimedDefaultValue(oldColumn.DefaultValue), newColumn.DefaultValue);

                            if (!SchemaInfoHelper.IsTableColumnEquals(this.dbInterpreter.DatabaseType, oldColumn, newColumn) ||
                                !isDefaultValueEquals)
                            {
                                if (!isDefaultValueEquals)
                                {
                                    if (this.dbInterpreter.DatabaseType == DatabaseType.SqlServer)
                                    {
                                        SqlServerScriptGenerator sqlServerScriptGenerator = scriptGenerator as SqlServerScriptGenerator;

                                        TableDefaultValueConstraint defaultValueConstraint = defaultValueConstraints?.FirstOrDefault(item => item.Owner == oldTable.Owner && item.TableName == oldTable.Name && item.ColumnName == oldColumn.Name);

                                        if (defaultValueConstraint != null)
                                        {
                                            scripts.Add(sqlServerScriptGenerator.DropDefaultValueConstraint(defaultValueConstraint));
                                        }

                                        scripts.Add(sqlServerScriptGenerator.AddDefaultValueConstraint(newColumn));
                                    }
                                }

                                Script alterColumnScript = scriptGenerator.AlterTableColumn(table, newColumn);

                                if (this.dbInterpreter.DatabaseType == DatabaseType.Oracle)
                                {
                                    if (!oldColumn.IsNullable && !newColumn.IsNullable)
                                    {
                                        alterColumnScript.Content = Regex.Replace(alterColumnScript.Content, "NOT NULL", "", RegexOptions.IgnoreCase);
                                    }
                                    else if (oldColumn.IsNullable && newColumn.IsNullable)
                                    {
                                        alterColumnScript.Content = Regex.Replace(alterColumnScript.Content, "NULL", "", RegexOptions.IgnoreCase);
                                    }
                                }

                                scripts.Add(alterColumnScript);
                            }
                            else if (!this.IsStringEquals(columnDesignerInfo.Comment, oldColumn.Comment))
                            {
                                scripts.Add(scriptGenerator.SetTableColumnComment(table, newColumn, string.IsNullOrEmpty(oldColumn.Comment)));
                            }
                        }
                    }

                    foreach (TableColumn oldColumn in oldColumns)
                    {
                        if (!columnDesingerInfos.Any(item => item.Name == oldColumn.Name))
                        {
                            scripts.Add(scriptGenerator.DropTableColumn(oldColumn));
                        }
                    }
                    #endregion

                    #region Primary Key
                    TablePrimaryKey oldPrimaryKey = oldSchemaInfo.TablePrimaryKeys.FirstOrDefault();
                    TablePrimaryKey newPrimaryKey = schemaInfo.TablePrimaryKeys.FirstOrDefault();

                    bool primaryKeyChanged = !SchemaInfoHelper.IsPrimaryKeyEquals(oldPrimaryKey, newPrimaryKey, schemaDesignerInfo.IgnoreTableIndex, true);

                    Action alterPrimaryKey = () =>
                    {
                        if (oldPrimaryKey != null)
                        {
                            scripts.Add(scriptGenerator.DropPrimaryKey(oldPrimaryKey));
                        }

                        scripts.Add(scriptGenerator.AddPrimaryKey(newPrimaryKey));

                        if (!string.IsNullOrEmpty(newPrimaryKey.Comment))
                        {
                            this.SetTableChildComment(scripts, scriptGenerator, newPrimaryKey, true);
                        }
                    };

                    if (primaryKeyChanged)
                    {
                        alterPrimaryKey();
                    }
                    else if (!ValueHelper.IsStringEquals(oldPrimaryKey?.Comment, newPrimaryKey?.Comment))
                    {
                        if (this.dbInterpreter.DatabaseType == DatabaseType.SqlServer)
                        {
                            this.SetTableChildComment(scripts, scriptGenerator, newPrimaryKey, string.IsNullOrEmpty(oldPrimaryKey?.Comment));
                        }
                        else
                        {
                            alterPrimaryKey();
                        }
                    }
                    #endregion

                    #region Index
                    if (!schemaDesignerInfo.IgnoreTableIndex)
                    {
                        IEnumerable <TableIndex> oldIndexes = oldSchemaInfo.TableIndexes.Where(item => !item.IsPrimary);

                        IEnumerable <TableIndexDesignerInfo> indexDesignerInfos = schemaDesignerInfo.TableIndexDesingerInfos.Where(item => !item.IsPrimary);

                        foreach (TableIndexDesignerInfo indexDesignerInfo in indexDesignerInfos)
                        {
                            TableIndex newIndex = schemaInfo.TableIndexes.FirstOrDefault(item => item.Name == indexDesignerInfo.Name);

                            TableIndex oldIndex = oldIndexes.FirstOrDefault(item => item.Name == indexDesignerInfo.OldName);

                            if (this.IsValueEqualsIgnoreCase(indexDesignerInfo.OldName, indexDesignerInfo.Name) &&
                                this.IsValueEqualsIgnoreCase(indexDesignerInfo.OldType, indexDesignerInfo.Type)
                                )
                            {
                                if (oldIndex != null && this.IsStringEquals(oldIndex.Comment, newIndex.Comment) && SchemaInfoHelper.IsIndexColumnsEquals(oldIndex.Columns, newIndex.Columns))
                                {
                                    continue;
                                }
                            }

                            if (oldIndex != null)
                            {
                                scripts.Add(scriptGenerator.DropIndex(oldIndex));
                            }

                            scripts.Add(scriptGenerator.AddIndex(newIndex));

                            if (!string.IsNullOrEmpty(newIndex.Comment))
                            {
                                this.SetTableChildComment(scripts, scriptGenerator, newIndex, true);
                            }
                        }

                        foreach (TableIndex oldIndex in oldIndexes)
                        {
                            if (!indexDesignerInfos.Any(item => item.Name == oldIndex.Name))
                            {
                                scripts.Add(scriptGenerator.DropIndex(oldIndex));
                            }
                        }
                    }
                    #endregion

                    #region Foreign Key
                    if (!schemaDesignerInfo.IgnoreTableForeignKey)
                    {
                        List <TableForeignKey> oldForeignKeys = oldSchemaInfo.TableForeignKeys;

                        IEnumerable <TableForeignKeyDesignerInfo> foreignKeyDesignerInfos = schemaDesignerInfo.TableForeignKeyDesignerInfos;

                        foreach (TableForeignKeyDesignerInfo foreignKeyDesignerInfo in foreignKeyDesignerInfos)
                        {
                            TableForeignKey newForeignKey = schemaInfo.TableForeignKeys.FirstOrDefault(item => item.Name == foreignKeyDesignerInfo.Name);

                            TableForeignKey oldForeignKey = oldForeignKeys.FirstOrDefault(item => item.Name == foreignKeyDesignerInfo.OldName);

                            if (this.IsValueEqualsIgnoreCase(foreignKeyDesignerInfo.OldName, foreignKeyDesignerInfo.Name) &&
                                foreignKeyDesignerInfo.UpdateCascade == oldForeignKey.UpdateCascade &&
                                foreignKeyDesignerInfo.DeleteCascade == oldForeignKey.DeleteCascade)
                            {
                                if (oldForeignKey != null && this.IsStringEquals(oldForeignKey.Comment, newForeignKey.Comment) &&
                                    SchemaInfoHelper.IsForeignKeyColumnsEquals(oldForeignKey.Columns, newForeignKey.Columns))
                                {
                                    continue;
                                }
                            }

                            if (oldForeignKey != null)
                            {
                                scripts.Add(scriptGenerator.DropForeignKey(oldForeignKey));
                            }

                            scripts.Add(scriptGenerator.AddForeignKey(newForeignKey));

                            if (!string.IsNullOrEmpty(newForeignKey.Comment))
                            {
                                this.SetTableChildComment(scripts, scriptGenerator, newForeignKey, true);
                            }
                        }

                        foreach (TableForeignKey oldForeignKey in oldForeignKeys)
                        {
                            if (!foreignKeyDesignerInfos.Any(item => item.Name == oldForeignKey.Name))
                            {
                                scripts.Add(scriptGenerator.DropForeignKey(oldForeignKey));
                            }
                        }
                    }
                    #endregion

                    #region Constraint
                    if (!schemaDesignerInfo.IgnoreTableConstraint)
                    {
                        List <TableConstraint> oldConstraints = oldSchemaInfo.TableConstraints;

                        IEnumerable <TableConstraintDesignerInfo> constraintDesignerInfos = schemaDesignerInfo.TableConstraintDesignerInfos;

                        foreach (TableConstraintDesignerInfo constraintDesignerInfo in constraintDesignerInfos)
                        {
                            TableConstraint newConstraint = schemaInfo.TableConstraints.FirstOrDefault(item => item.Name == constraintDesignerInfo.Name);

                            TableConstraint oldConstraint = oldConstraints.FirstOrDefault(item => item.Name == constraintDesignerInfo.OldName);

                            if (this.IsValueEqualsIgnoreCase(constraintDesignerInfo.OldName, constraintDesignerInfo.Name))
                            {
                                if (oldConstraint != null && this.IsStringEquals(oldConstraint.Comment, newConstraint.Comment))
                                {
                                    continue;
                                }
                            }

                            if (oldConstraint != null)
                            {
                                scripts.Add(scriptGenerator.DropCheckConstraint(oldConstraint));
                            }

                            scripts.Add(scriptGenerator.AddCheckConstraint(newConstraint));

                            if (!string.IsNullOrEmpty(newConstraint.Comment))
                            {
                                this.SetTableChildComment(scripts, scriptGenerator, newConstraint, true);
                            }
                        }

                        foreach (TableConstraint oldConstraint in oldConstraints)
                        {
                            if (!constraintDesignerInfos.Any(item => item.Name == oldConstraint.Name))
                            {
                                scripts.Add(scriptGenerator.DropCheckConstraint(oldConstraint));
                            }
                        }
                    }
                    #endregion

                    #endregion
                }

                scriptsData.Scripts.AddRange(scripts);

                return(new ContentSaveResult()
                {
                    IsOK = true, ResultData = scriptsData
                });
            }
            catch (Exception ex)
            {
                return(this.GetFaultSaveResult(ExceptionHelper.GetExceptionDetails(ex)));
            }
        }
 public InterpreterDemo(DbInterpreter dbInterpreter)
 {
     this.interpreter       = dbInterpreter;
     this.dbScriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(this.interpreter);
 }
示例#4
0
        private async void GenerateScripts()
        {
            SchemaInfo schemaInfo = this.tvDbObjects.GetSchemaInfo();

            if (!this.Validate(schemaInfo))
            {
                return;
            }

            this.isBusy = true;
            this.btnGenerate.Enabled = false;

            DatabaseType dbType = this.useConnector ? this.dbConnectionProfile.DatabaseType : this.databaseType;

            DbInterpreterOption option = new DbInterpreterOption()
            {
                ScriptOutputMode       = GenerateScriptOutputMode.WriteToFile,
                SortObjectsByReference = true,
                GetTableAllObjects     = true
            };

            if (this.chkTreatBytesAsNull.Checked)
            {
                option.TreatBytesAsNullForReading   = true;
                option.TreatBytesAsNullForExecuting = true;
            }
            else
            {
                if (dbType == DatabaseType.Oracle)
                {
                    option.TreatBytesAsNullForReading   = true;
                    option.TreatBytesAsNullForExecuting = true;
                }
                else
                {
                    option.TreatBytesAsHexStringForFile = true;
                }
            }

            this.SetGenerateScriptOption(option);

            GenerateScriptMode scriptMode = this.GetGenerateScriptMode();

            if (scriptMode == GenerateScriptMode.None)
            {
                MessageBox.Show("Please specify the script mode.");
                return;
            }

            this.dbInterpreter = DbInterpreterHelper.GetDbInterpreter(dbType, this.connectionInfo, option);

            SchemaInfoFilter filter = new SchemaInfoFilter();

            SchemaInfoHelper.SetSchemaInfoFilterValues(filter, schemaInfo);

            try
            {
                schemaInfo = await this.dbInterpreter.GetSchemaInfoAsync(filter);

                this.dbInterpreter.Subscribe(this);

                GenerateScriptMode mode = GenerateScriptMode.None;

                DbScriptGenerator dbScriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(this.dbInterpreter);

                if (scriptMode.HasFlag(GenerateScriptMode.Schema))
                {
                    mode = GenerateScriptMode.Schema;
                    dbScriptGenerator.GenerateSchemaScripts(schemaInfo);
                }

                if (scriptMode.HasFlag(GenerateScriptMode.Data))
                {
                    mode = GenerateScriptMode.Data;
                    await dbScriptGenerator.GenerateDataScriptsAsync(schemaInfo);
                }

                this.isBusy = false;
                ManagerUtil.OpenInExplorer(dbScriptGenerator.GetScriptOutputFilePath(mode));

                MessageBox.Show(DONE, "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                this.HandleException(ex);
            }

            this.btnGenerate.Enabled = true;
        }
示例#5
0
        public async Task ClearData(List <Table> tables = null)
        {
            this.FeedbackInfo("Begin to clear data...");

            if (tables == null)
            {
                tables = await this.dbInterpreter.GetTablesAsync();
            }

            bool failed = false;

            DbTransaction transaction = null;

            try
            {
                this.FeedbackInfo("Disable constrains.");

                DbScriptGenerator scriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(this.dbInterpreter);

                using (DbConnection dbConnection = this.dbInterpreter.CreateConnection())
                {
                    dbConnection.Open();

                    await this.SetConstrainsEnabled(dbConnection, false);

                    transaction = dbConnection.BeginTransaction();

                    foreach (Table table in tables)
                    {
                        string sql = $"DELETE FROM {this.dbInterpreter.GetQuotedObjectName(table)}";

                        this.FeedbackInfo(sql);

                        CommandInfo commandInfo = new CommandInfo()
                        {
                            CommandType = CommandType.Text,
                            CommandText = sql,
                            Transaction = transaction
                        };

                        await this.dbInterpreter.ExecuteNonQueryAsync(dbConnection, commandInfo);
                    }

                    if (!this.dbInterpreter.HasError)
                    {
                        transaction.Commit();
                    }

                    await this.SetConstrainsEnabled(dbConnection, true);
                }
            }
            catch (Exception ex)
            {
                failed = true;
                this.FeedbackError(ExceptionHelper.GetExceptionDetails(ex));

                if (transaction != null)
                {
                    try
                    {
                        transaction.Rollback();
                    }
                    catch (Exception iex)
                    {
                    }
                }
            }
            finally
            {
                if (failed)
                {
                    this.FeedbackInfo("Enable constrains.");

                    await this.SetConstrainsEnabled(null, true);
                }
            }

            this.FeedbackInfo("End clear data.");
        }
示例#6
0
 public DbManager(DbInterpreter dbInterpreter)
 {
     this.dbInterpreter   = dbInterpreter;
     this.scriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(dbInterpreter);
 }
        private async Task InternalConvert(SchemaInfo schemaInfo = null)
        {
            DbInterpreter sourceInterpreter = this.Source.DbInterpreter;

            sourceInterpreter.Option.BulkCopy = this.Option.BulkCopy;
            sourceInterpreter.Subscribe(this.observer);

            sourceInterpreter.Option.GetTableAllObjects                    = false;
            sourceInterpreter.Option.ThrowExceptionWhenErrorOccurs         = false;
            this.Target.DbInterpreter.Option.ThrowExceptionWhenErrorOccurs = false;

            if (string.IsNullOrEmpty(this.Target.DbOwner))
            {
                if (this.Target.DbInterpreter.DatabaseType == DatabaseType.Oracle)
                {
                    this.Target.DbOwner = (this.Target.DbInterpreter as OracleInterpreter).GetDbOwner();
                }
            }

            DatabaseObjectType databaseObjectType = (DatabaseObjectType)Enum.GetValues(typeof(DatabaseObjectType)).Cast <int>().Sum();

            if (schemaInfo != null && !this.Source.DbInterpreter.Option.GetTableAllObjects &&
                (schemaInfo.TableTriggers == null || schemaInfo.TableTriggers.Count == 0))
            {
                databaseObjectType = databaseObjectType ^ DatabaseObjectType.TableTrigger;
            }

            SchemaInfoFilter filter = new SchemaInfoFilter()
            {
                Strict = true, DatabaseObjectType = databaseObjectType
            };

            SchemaInfoHelper.SetSchemaInfoFilterValues(filter, schemaInfo);

            SchemaInfo sourceSchemaInfo = await sourceInterpreter.GetSchemaInfoAsync(filter);

            if (sourceInterpreter.HasError)
            {
                return;
            }

            sourceSchemaInfo.TableColumns = DbObjectHelper.ResortTableColumns(sourceSchemaInfo.Tables, sourceSchemaInfo.TableColumns);

            if (SettingManager.Setting.NotCreateIfExists)
            {
                this.Target.DbInterpreter.Option.GetTableAllObjects = false;

                SchemaInfo targetSchema = await this.Target.DbInterpreter.GetSchemaInfoAsync(filter);

                SchemaInfoHelper.ExcludeExistingObjects(sourceSchemaInfo, targetSchema);
            }

            #region Set data type by user define type

            List <UserDefinedType> utypes = new List <UserDefinedType>();

            if (sourceInterpreter.DatabaseType != this.Target.DbInterpreter.DatabaseType)
            {
                utypes = await sourceInterpreter.GetUserDefinedTypesAsync();

                if (utypes != null && utypes.Count > 0)
                {
                    foreach (TableColumn column in sourceSchemaInfo.TableColumns)
                    {
                        UserDefinedType utype = utypes.FirstOrDefault(item => item.Name == column.DataType);
                        if (utype != null)
                        {
                            column.DataType  = utype.Type;
                            column.MaxLength = utype.MaxLength;
                        }
                    }
                }
            }

            #endregion

            SchemaInfo targetSchemaInfo = SchemaInfoHelper.Clone(sourceSchemaInfo);

            if (this.Source.TableNameMappings != null && this.Source.TableNameMappings.Count > 0)
            {
                SchemaInfoHelper.MapTableNames(targetSchemaInfo, this.Source.TableNameMappings);
            }

            if (this.Option.RenameTableChildren)
            {
                SchemaInfoHelper.RenameTableChildren(targetSchemaInfo);
            }

            if (this.Option.IgnoreNotSelfForeignKey)
            {
                targetSchemaInfo.TableForeignKeys = targetSchemaInfo.TableForeignKeys.Where(item => item.TableName == item.ReferencedTableName).ToList();
            }

            #region Translate
            TranslateEngine translateEngine = new TranslateEngine(sourceSchemaInfo, targetSchemaInfo, sourceInterpreter, this.Target.DbInterpreter, this.Option, this.Target.DbOwner);

            translateEngine.SkipError = this.Option.SkipScriptError || this.Option.OnlyForTranslate;

            DatabaseObjectType translateDbObjectType = TranslateEngine.SupportDatabaseObjectType;

            if (!this.Option.GenerateScriptMode.HasFlag(GenerateScriptMode.Schema) && this.Option.BulkCopy && this.Target.DbInterpreter.SupportBulkCopy)
            {
                translateDbObjectType = DatabaseObjectType.TableColumn;
            }

            translateEngine.UserDefinedTypes = utypes;
            translateEngine.OnTranslated    += this.Translated;
            translateEngine.Subscribe(this.observer);
            translateEngine.Translate(translateDbObjectType);

            if (this.Option.OnlyForTranslate)
            {
                if (targetSchemaInfo.Tables.Count == 0 && targetSchemaInfo.UserDefinedTypes.Count == 0)
                {
                    return;
                }
            }

            #endregion

            if (targetSchemaInfo.Tables.Any())
            {
                if (this.Option.EnsurePrimaryKeyNameUnique)
                {
                    SchemaInfoHelper.EnsurePrimaryKeyNameUnique(targetSchemaInfo);
                }

                if (this.Option.EnsureIndexNameUnique)
                {
                    SchemaInfoHelper.EnsureIndexNameUnique(targetSchemaInfo);
                }
            }

            DbInterpreter targetInterpreter = this.Target.DbInterpreter;

            bool generateIdentity = targetInterpreter.Option.TableScriptsGenerateOption.GenerateIdentity;

            if (generateIdentity)
            {
                targetInterpreter.Option.InsertIdentityValue = true;
            }

            string script = "";

            targetInterpreter.Subscribe(this.observer);

            ScriptBuilder scriptBuilder = null;

            DbScriptGenerator targetDbScriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(targetInterpreter);

            if (this.Option.GenerateScriptMode.HasFlag(GenerateScriptMode.Schema))
            {
                scriptBuilder = targetDbScriptGenerator.GenerateSchemaScripts(targetSchemaInfo);

                if (targetSchemaInfo.Tables.Any())
                {
                    this.Translated(targetInterpreter.DatabaseType, targetSchemaInfo.Tables.First(), new TranslateResult()
                    {
                        Data = scriptBuilder.ToString()
                    });
                }
            }

            if (this.Option.OnlyForTranslate)
            {
                return;
            }

            DataTransferErrorProfile dataErrorProfile = null;

            using (DbConnection dbConnection = this.Option.ExecuteScriptOnTargetServer ? targetInterpreter.CreateConnection() : null)
            {
                this.isBusy = true;

                if (this.Option.ExecuteScriptOnTargetServer && this.Option.UseTransaction)
                {
                    dbConnection.Open();
                    this.transaction = dbConnection.BeginTransaction();
                }

                #region Schema sync

                if (scriptBuilder != null && this.Option.ExecuteScriptOnTargetServer)
                {
                    List <Script> scripts = scriptBuilder.Scripts;

                    if (scripts.Count == 0)
                    {
                        this.Feedback(targetInterpreter, $"The script to create schema is empty.", FeedbackInfoType.Info);
                        this.isBusy = false;
                        return;
                    }

                    targetInterpreter.Feedback(FeedbackInfoType.Info, "Begin to sync schema...");

                    try
                    {
                        if (!this.Option.SplitScriptsToExecute)
                        {
                            targetInterpreter.Feedback(FeedbackInfoType.Info, script);

                            await targetInterpreter.ExecuteNonQueryAsync(dbConnection, this.GetCommandInfo(script, null, this.transaction));
                        }
                        else
                        {
                            Func <Script, bool> isValidScript = (s) =>
                            {
                                return(!(s is NewLineSript || s is SpliterScript || string.IsNullOrEmpty(s.Content) || s.Content == targetInterpreter.ScriptsDelimiter));
                            };

                            int count = scripts.Where(item => isValidScript(item)).Count();
                            int i     = 0;

                            foreach (Script s in scripts)
                            {
                                if (targetInterpreter.HasError)
                                {
                                    break;
                                }

                                if (!isValidScript(s))
                                {
                                    continue;
                                }

                                bool isCreateScript = s.ObjectType == nameof(Function) || s.ObjectType == nameof(Procedure) || s.ObjectType == nameof(TableTrigger);

                                bool skipError = this.Option.SkipScriptError && isCreateScript;

                                string sql = s.Content?.Trim();

                                if (!string.IsNullOrEmpty(sql) && sql != targetInterpreter.ScriptsDelimiter)
                                {
                                    i++;

                                    if (!isCreateScript && targetInterpreter.ScriptsDelimiter.Length == 1 && sql.EndsWith(targetInterpreter.ScriptsDelimiter))
                                    {
                                        sql = sql.TrimEnd(targetInterpreter.ScriptsDelimiter.ToArray());
                                    }

                                    if (!targetInterpreter.HasError)
                                    {
                                        targetInterpreter.Feedback(FeedbackInfoType.Info, $"({i}/{count}), executing:{Environment.NewLine} {sql}");

                                        CommandInfo commandInfo = this.GetCommandInfo(sql, null, transaction);
                                        commandInfo.SkipError = skipError;

                                        await targetInterpreter.ExecuteNonQueryAsync(dbConnection, commandInfo);
                                    }
                                }
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        targetInterpreter.CancelRequested = true;

                        this.Rollback();

                        ConnectionInfo sourceConnectionInfo = sourceInterpreter.ConnectionInfo;
                        ConnectionInfo targetConnectionInfo = targetInterpreter.ConnectionInfo;

                        SchemaTransferException schemaTransferException = new SchemaTransferException(ex)
                        {
                            SourceServer   = sourceConnectionInfo.Server,
                            SourceDatabase = sourceConnectionInfo.Database,
                            TargetServer   = targetConnectionInfo.Server,
                            TargetDatabase = targetConnectionInfo.Database
                        };

                        this.HandleError(schemaTransferException);
                    }

                    targetInterpreter.Feedback(FeedbackInfoType.Info, "End sync schema.");
                }
                #endregion

                #region Data sync
                if (!targetInterpreter.HasError && this.Option.GenerateScriptMode.HasFlag(GenerateScriptMode.Data) && sourceSchemaInfo.Tables.Count > 0)
                {
                    List <TableColumn> identityTableColumns = new List <TableColumn>();

                    if (generateIdentity)
                    {
                        identityTableColumns = targetSchemaInfo.TableColumns.Where(item => item.IsIdentity).ToList();
                    }

                    if (this.Option.PickupTable)
                    {
                        dataErrorProfile = DataTransferErrorProfileManager.GetProfile(sourceInterpreter.ConnectionInfo, targetInterpreter.ConnectionInfo);

                        if (dataErrorProfile != null)
                        {
                            sourceSchemaInfo.PickupTable = new Table()
                            {
                                Owner = schemaInfo.Tables.FirstOrDefault()?.Owner, Name = dataErrorProfile.SourceTableName
                            };
                        }
                    }

                    await this.SetIdentityEnabled(identityTableColumns, targetInterpreter, targetDbScriptGenerator, dbConnection, transaction, false);

                    if (this.Option.ExecuteScriptOnTargetServer || targetInterpreter.Option.ScriptOutputMode.HasFlag(GenerateScriptOutputMode.WriteToFile))
                    {
                        Dictionary <Table, long> dictTableDataTransferredCount = new Dictionary <Table, long>();

                        sourceInterpreter.OnDataRead += async(TableDataReadInfo tableDataReadInfo) =>
                        {
                            if (!this.hasError)
                            {
                                Table table = tableDataReadInfo.Table;
                                List <TableColumn> columns = tableDataReadInfo.Columns;

                                try
                                {
                                    (Table Table, List <TableColumn> Columns)targetTableAndColumns = this.GetTargetTableColumns(targetSchemaInfo, this.Target.DbOwner, table, columns);

                                    if (targetTableAndColumns.Table == null || targetTableAndColumns.Columns == null)
                                    {
                                        return;
                                    }

                                    if (this.Option.ExecuteScriptOnTargetServer)
                                    {
                                        DataTable dataTable = tableDataReadInfo.DataTable;
                                        List <Dictionary <string, object> > data = tableDataReadInfo.Data;

                                        if (this.Option.BulkCopy && targetInterpreter.SupportBulkCopy)
                                        {
                                            BulkCopyInfo bulkCopyInfo = this.GetBulkCopyInfo(table, targetSchemaInfo, this.transaction);

                                            if (targetInterpreter.DatabaseType == DatabaseType.Oracle)
                                            {
                                                if (columns.Any(item => item.DataType.ToLower().Contains("datetime2") || item.DataType.ToLower().Contains("timestamp")))
                                                {
                                                    bulkCopyInfo.DetectDateTimeTypeByValues = true;
                                                }
                                            }

                                            if (this.Option.ConvertComputeColumnExpression)
                                            {
                                                IEnumerable <DataColumn> dataColumns = dataTable.Columns.OfType <DataColumn>();

                                                foreach (TableColumn column in bulkCopyInfo.Columns)
                                                {
                                                    if (column.IsComputed && dataColumns.Any(item => item.ColumnName == column.Name))
                                                    {
                                                        dataTable.Columns.Remove(column.Name);
                                                    }
                                                }
                                            }

                                            await targetInterpreter.BulkCopyAsync(dbConnection, dataTable, bulkCopyInfo);
                                        }
                                        else
                                        {
                                            StringBuilder sb = new StringBuilder();

                                            Dictionary <string, object> paramters = targetDbScriptGenerator.AppendDataScripts(sb, targetTableAndColumns.Table, targetTableAndColumns.Columns, new Dictionary <long, List <Dictionary <string, object> > >()
                                            {
                                                { 1, data }
                                            });

                                            script = sb.ToString().Trim().Trim(';');

                                            await targetInterpreter.ExecuteNonQueryAsync(dbConnection, this.GetCommandInfo(script, paramters, this.transaction));
                                        }

                                        if (!dictTableDataTransferredCount.ContainsKey(table))
                                        {
                                            dictTableDataTransferredCount.Add(table, dataTable.Rows.Count);
                                        }
                                        else
                                        {
                                            dictTableDataTransferredCount[table] += dataTable.Rows.Count;
                                        }

                                        long transferredCount = dictTableDataTransferredCount[table];

                                        double percent = (transferredCount * 1.0 / tableDataReadInfo.TotalCount) * 100;

                                        string strPercent = (percent == (int)percent) ? (percent + "%") : (percent / 100).ToString("P2");

                                        targetInterpreter.FeedbackInfo($"Table \"{table.Name}\":{dataTable.Rows.Count} records transferred.({transferredCount}/{tableDataReadInfo.TotalCount},{strPercent})");
                                    }
                                }
                                catch (Exception ex)
                                {
                                    sourceInterpreter.CancelRequested = true;

                                    this.Rollback();

                                    ConnectionInfo sourceConnectionInfo = sourceInterpreter.ConnectionInfo;
                                    ConnectionInfo targetConnectionInfo = targetInterpreter.ConnectionInfo;

                                    string mappedTableName = this.GetMappedTableName(table.Name);

                                    DataTransferException dataTransferException = new DataTransferException(ex)
                                    {
                                        SourceServer   = sourceConnectionInfo.Server,
                                        SourceDatabase = sourceConnectionInfo.Database,
                                        SourceObject   = table.Name,
                                        TargetServer   = targetConnectionInfo.Server,
                                        TargetDatabase = targetConnectionInfo.Database,
                                        TargetObject   = mappedTableName
                                    };

                                    this.HandleError(dataTransferException);

                                    if (!this.Option.UseTransaction)
                                    {
                                        DataTransferErrorProfileManager.Save(new DataTransferErrorProfile
                                        {
                                            SourceServer    = sourceConnectionInfo.Server,
                                            SourceDatabase  = sourceConnectionInfo.Database,
                                            SourceTableName = table.Name,
                                            TargetServer    = targetConnectionInfo.Server,
                                            TargetDatabase  = targetConnectionInfo.Database,
                                            TargetTableName = mappedTableName
                                        });
                                    }
                                }
                            }
                        };
                    }

                    DbScriptGenerator sourceDbScriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(sourceInterpreter);

                    await sourceDbScriptGenerator.GenerateDataScriptsAsync(sourceSchemaInfo);

                    await this.SetIdentityEnabled(identityTableColumns, targetInterpreter, targetDbScriptGenerator, dbConnection, transaction, true);
                }
                #endregion

                if (this.transaction != null && this.transaction.Connection != null && !this.cancelRequested)
                {
                    this.transaction.Commit();
                }

                this.isBusy = false;
            }

            if (dataErrorProfile != null && !this.hasError && !this.cancelRequested)
            {
                DataTransferErrorProfileManager.Remove(dataErrorProfile);
            }
        }
        public async Task <string> Generate(DatabaseObject dbObject, ScriptAction scriptAction)
        {
            string typeName = dbObject.GetType().Name;

            if (dbObject is Table)
            {
                dbInterpreter.Option.GetTableAllObjects = true;
            }

            DatabaseObjectType databaseObjectType = (DatabaseObjectType)Enum.Parse(typeof(DatabaseObjectType), typeName);

            SchemaInfoFilter filter = new SchemaInfoFilter()
            {
                DatabaseObjectType = databaseObjectType
            };

            filter.GetType().GetProperty($"{typeName}Names").SetValue(filter, new string[] { dbObject.Name });

            SchemaInfo schemaInfo = await dbInterpreter.GetSchemaInfoAsync(filter);

            DbScriptGenerator dbScriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(dbInterpreter);

            List <Script> scripts = dbScriptGenerator.GenerateSchemaScripts(schemaInfo).Scripts;

            StringBuilder sbContent = new StringBuilder();

            DatabaseType databaseType = this.dbInterpreter.DatabaseType;

            foreach (Script script in scripts)
            {
                if (databaseType == DatabaseType.SqlServer && script is SpliterScript)
                {
                    continue;
                }

                string content = script.Content;

                if (scriptAction == ScriptAction.ALTER && typeName != nameof(Table))
                {
                    string objType = typeName;

                    if (typeName == nameof(TableTrigger))
                    {
                        objType = "TRIGGER";
                    }

                    string createFlag      = "CREATE ";
                    int    createFlagIndex = this.GetCreateIndex(content, createFlag);

                    if (createFlagIndex >= 0)
                    {
                        switch (databaseType)
                        {
                        case DatabaseType.SqlServer:
                            content = content.Substring(0, createFlagIndex) + "ALTER " + content.Substring(createFlagIndex + createFlag.Length);
                            break;

                        case DatabaseType.MySql:
                            content = $"DROP {objType} IF EXISTS {this.dbInterpreter.GetQuotedString(dbObject.Name)};" + Environment.NewLine + content;
                            break;

                        case DatabaseType.Oracle:
                            if (!Regex.IsMatch(content, @"^(CREATE[\s]+OR[\s]+REPLACE[\s]+)", RegexOptions.IgnoreCase))
                            {
                                content = content.Substring(0, createFlagIndex) + "CREATE OR REPLACE " + content.Substring(createFlagIndex + createFlag.Length);
                            }
                            break;
                        }
                    }
                }

                sbContent.AppendLine(content);
            }

            return(sbContent.ToString());
        }
        private async void Compare(DatabaseObjectType databaseObjectType)
        {
            DatabaseType dbType;

            if (this.useSourceConnector)
            {
                dbType = this.sourceDbProfile.DatabaseType;

                if (!this.sourceDbProfile.IsDbTypeSelected())
                {
                    MessageBox.Show("Please select a source database type.");
                    return;
                }

                if (!this.sourceDbProfile.IsProfileSelected())
                {
                    MessageBox.Show("Please select a source database profile.");
                    return;
                }

                if (!this.sourceDbConnectionInfo.IntegratedSecurity && string.IsNullOrEmpty(this.sourceDbConnectionInfo.Password))
                {
                    MessageBox.Show("Please specify password for the source database.");
                    this.sourceDbProfile.ConfigConnection(true);
                    return;
                }
            }
            else
            {
                dbType = this.sourceDatabaseType;
            }

            if (this.sourceDbConnectionInfo == null)
            {
                MessageBox.Show("Source connection is null.");
                return;
            }

            if (this.targetDbConnectionInfo == null)
            {
                MessageBox.Show("Target connection info is null.");
                return;
            }

            if (dbType != this.targetDbProfile.DatabaseType)
            {
                MessageBox.Show("Target database type must be same as source database type.");
                return;
            }

            if (this.sourceDbConnectionInfo.Server == this.targetDbConnectionInfo.Server && this.sourceDbConnectionInfo.Database == this.targetDbConnectionInfo.Database)
            {
                MessageBox.Show("Source database cannot be equal to the target database.");
                return;
            }

            this.btnCompare.Text    = "...";
            this.btnCompare.Enabled = false;

            try
            {
                DbInterpreterOption sourceOption = new DbInterpreterOption();
                DbInterpreterOption targetOption = new DbInterpreterOption();
                SchemaInfoFilter    sourceFilter = new SchemaInfoFilter()
                {
                    DatabaseObjectType = databaseObjectType
                };
                SchemaInfoFilter targetFilter = new SchemaInfoFilter()
                {
                    DatabaseObjectType = databaseObjectType
                };

                if (databaseObjectType.HasFlag(DatabaseObjectType.Table))
                {
                    sourceOption.GetTableAllObjects = true;
                    targetOption.GetTableAllObjects = true;
                }

                this.sourceInterpreter     = DbInterpreterHelper.GetDbInterpreter(dbType, this.sourceDbConnectionInfo, sourceOption);
                this.targetInterpreter     = DbInterpreterHelper.GetDbInterpreter(this.targetDbProfile.DatabaseType, this.targetDbConnectionInfo, targetOption);
                this.sourceScriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(this.sourceInterpreter);
                this.targetScriptGenerator = DbScriptGeneratorHelper.GetDbScriptGenerator(this.targetInterpreter);

                this.sourceInterpreter.Subscribe(this);
                this.targetInterpreter.Subscribe(this);

                this.sourceSchemaInfo = await this.sourceInterpreter.GetSchemaInfoAsync(sourceFilter);

                this.targetSchemaInfo = await this.targetInterpreter.GetSchemaInfoAsync(targetFilter);

                DbCompare dbCompare = new DbCompare(sourceSchemaInfo, targetSchemaInfo);

                this.Feedback("Begin to compare...");

                this.differences = dbCompare.Compare();

                this.Feedback("End compare.");

                this.LoadData();
            }
            catch (Exception ex)
            {
                string message = ExceptionHelper.GetExceptionDetails(ex);

                LogHelper.LogError(message);

                MessageBox.Show("Error:" + message);
            }
            finally
            {
                this.btnCompare.Text    = "Compare";
                this.btnCompare.Enabled = true;
            }
        }