更多信息,请参看SQL Server Book Online 嵌套查询(Nested Queries) 在嵌套形式中,某些Access查询是在别的查询的顶层上创建的。
基于36个网页-相关网页
nested set of queries 巢套检索集
Therefore, XGrind cannot perform any join, aggregation, nested queries, or construct operations.
因此,XGrind不能执行任何连接、聚合、嵌套查询或构建操作。
The structure of SQL-like nested queries is examined. It is shown that any SQL- like nested query can be decomposed into four basic nested types.
本文分析了SQL类查询语句的基本结构,指出任何一个嵌套结构的SQL类语句都可以由四种基本嵌套类型组成。
应用推荐