查询操作 query operations ; Select Operation ; SELECT ; DQL
查询操作符 Query Operators
操作型查询 action query
标准查询操作符 Standard Query Operators ; SQOS
查询操作维护通道状态 DSP OMCH
批量操作任务查询 list job
知识查询操作语言 knowledge query manipulation language
操作记录查询 Download inspection mark recorded in LogTag memory every time LogTag is downloaded
执行操作查询时使用“无光标”选项，因此不需要游标。
No cursor option is used when an action query is performed, and thus no cursor is necessary.
系统提供了互操作查询语言IOQL来实现多数据源上的查询。
It provides IOQL (Interoperable Object Query Language) which enables users to manipulate data in multiple databases.
它可以实现分布式子系统之间表单数据的交互，并且实现了位置透明，提供了异构数据兼容和历史操作查询等功能。
The middle software can complete such functions as table data communication, location transparency, heterogeneous data compatibility and history operate query.
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