Find the top join node in a query plan.
查找一个查询计划中的顶级连接节点。
If star join directives are used in a query, directives override session environment setting.
如果查询中使用星型连接指令,指令会将会话环境设置覆盖。
Once again, the second query requires no table join.
第二查询也不需要表连接。
Should I use JOIN or UNION for this MYSQL query?
我应该使用连接或联合这个MySQL查询?
If so, the Query and View Designer automatically converts the search condition into a join.
如果将导致联接,查询和视图设计器会自动将搜索条件转换为联接。
The Query and View Designer displays one join line for each join condition.
可显示每个联结条件的联结线。
The Query and View Designer displays one join line for each join condition.
可显示每个联结条件的联结线。
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