The control flow has one data flow for each table, each data flow reading data from a flat file source and writing to the SQL Server database via OLEDB.
通过OLED B控制流为每一个表存在一个数据流，每一个数据流读平面文件数据，并写回s QL Server数据库。
They are used for issuing DMA commands to the memory flow controller, handling SPE events, and reading and writing messages to and from the PPE.
它们可用来向内存流控制器发出dma命令、处理SPE事件、向PPE和从PPE读写消息。
It introduces the program flow chart, data store format, reading and writing method in detail, and also points out some questions that need to be paid attention to in the programming.
详细介绍了程序流程图、数据存储格式和读取方法，并指出了实际编程中要注意的一些问题。
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