Foreach Loop 容器是SSIS 结构化控制流设计中一个非常常用的控制流任务,它用来遍历一个集合中的所有对象,然后执行相同的操作,它的功能类似于结构化程序设计中的 Foreach i in 集合 … END 结构,在SSIS中这些可以定义的集合包括: 项目集合 (Foreach Item Enumberator) 文件集合(Foreach File Enumberator) 记录...
The Foreach Loop container provides no functionality; it provides only the structure in which you build the repeatable control flow, specify an enumerator type, and configure the enumerator. To provide container functionality, you must include at least one task in the Foreach Loop container. For ...
通常在 Execute SQL Task 中使用到 FULL Result Set 就一定会结合 Foreach Loop 来使用,所适用的场景是循环便利查询结果集中的每一行数据,将每一行的数据其中某几列取出来放入到变量中,然后同样在 Foreach Loop 中的其它控制流控件使用这些变量做一些操作。 疑问 像这种遍历为什么不放到数据库中直接遍历不是更好...
执行SQL 任务可以与 Foreach 循环和 For 循环容器一起组合使用,以运行多个 SQL 语句。 这些容器在包中实现重复运行控制流,并可重复运行执行 SQL 任务。 例如,包可以使用 Foreach 循环容器来枚举文件夹中的文件,并重复运行执行 SQL 任务来执行存储在各个文件中的 SQL 语句。
If the Foreach Loop container includes multiple tasks, you can map the enumerator collection value to multiple properties of each task. You can set a transaction attribute on the Foreach Loop container to define a transaction for a subset of the package control flow. In this way, you can ...
SSIS For Loop Container SSIS Foreach Loop Container Within a script task Data Flow Task Within a script component In this section, we will not focus on how to implement loops using scripting in SSIS. Instead, we will give an overview of the containers mentioned above. ...
If the Foreach Loop container includes multiple tasks, you can map the enumerator collection value to multiple properties of each task. You can set a transaction attribute on the Foreach Loop container to define a transaction for a subset of the package control flow. In this way, you can ...
The Execute SQL task can be used in combination with the Foreach Loop and For Loop containers to run multiple SQL statements. These containers implement repeating control flows in a package and they can run the Execute SQL task repeatedly. For example, using the Foreach Loop container, a pack...
在Foreach Loop Container 中 新建一个 Data Flow Task,我们要遍历所有文件并将数据加载到数据库中。由于源目录下所有的文件格式都一样,因此直接先选择其中任意一个文件建立好平面连接管理器,并实现数据输出的过程。 由于在循环遍历文件的过程中,每一次循环都可以获取一个文件的路径并保存在变量 PV_EMPLOYYE_FILE ...
The Execute SQL task can be used in combination with the Foreach Loop and For Loop containers to run multiple SQL statements. These containers implement repeating control flows in a package and they can run the Execute SQL task repeatedly. For example, using the Foreach Loop container, a pack...