The task that runs data flows to extract data , apply column level transformations , and load data 数据流任务用于运行数据流以提取数据、应用列级转换和加载数据。
When the sql server import and export wizard accesses data in flat files , you can apply column definitions to the data and view the results , making it easy to see whether a column is too narrow and data will be truncated 当sql server导入和导出向导访问平面文件中的数据时,您可以将列定义应用到数据并查看结果,这样就可以很容易地确定列是否太窄,数据是否将被截断。