用它来模拟错误,设置SQLStatement为select 1/0,当pacakage执行到这里的时候会造成错误进而回滚。 8.右击Placeholder for Breakpoint和Simulate Failure之间的连线,点击Edit,设置Evaluation operation为Expression and Constraint,设置Expression为@[User::v_SimulateF
在Foreach Loop container中拖放一个Execute SQL,设置Connection属性为数据库Adventure 点击Expression选项,找到SQLStatementSource属性,编写一个sql语句将当前变量myFilePath检索的文件的路径写入到数据库中。Expression表达式如下,使用双引号包括起来:"INSERT INTO stgFileList SELECT '"+ @[User::myFilePath] + "'" 将...
When you do this, you get a dialog that allows you to check the “constraint” (success, completion or failure) of the task, an “expression” (i.e. you can have your execute SQL task return a value, store that value in a variable, and check the value of that variable in an expre...
«when_true» : («boolean_expression» ? «when_true» : «when_false») 智能推荐Verilog中if..else和case语句分析 本文主要讨论一下Verilog中if...else...与case..语句的比较。 先看几个图: if...else.. case语句实现与上述一样的功能 发现RTL视图差别很大,而且从RTL视图也能看出if...
点击Expression选项,找到SQLStatementSource属性,编写一个sql语句将当前变量myFilePath检索的文件的路径写入到数据库中。Expression表达式如下,使用双引号包括起来:"INSERT INTO stgFileList SELECT '"+ @[User::myFilePath] + "'" 将Foreach Loop Container和上次练习中的Data Flow task连接起来,这里直接使用,不再赘述...
SSIS Expression Tasks vs Evaluating variables as expressions SSIS OLE DB Destination vs SQL Server Destination Execute SQL Task in SSIS: SqlStatementSource Expressions vs Variable Source Types Execute SQL Task in SSIS: Output Parameters vs Result Sets ...
The expression language embedded in SSIS essentially replaces the need to control workflow using script-based methodologies that enable and disable tasks, as was used in the DTS legacy solution. #4. Containers Containers are core units in the SSIS architecture for grouping tasks together logically ...
ExpressionOrConstraint4 Value属性 - 通过使用“DTSExecResult”枚举中的值设置。 友好名称数值 Success0 失败1 Completion2 已取消3 Foreach 循环枚举器 Foreach 循环包括一组其属性可以由属性表达式设置的枚举器。 Foreach ADO 枚举器 Type属性 - 通过使用“ADOEnumerationType”枚举中的值设...
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添加一个Execute SQL命名为Simulate Failure。用它来模拟错误,设置SQLStatement为select 1/0,当pacakage执行到这里的时候会造成错误进而回滚。 右击Placeholder for Breakpoint和Simulate Failure之间的连线,点击Edit,设置Evaluation operation为Expression and Constraint,设置Expression为@[User::v_SimulateFailure] == 1,...