Step 7: Adding a Table Join operator.
步骤7:添加一个Table join操作符。
The information needed can be obtained by using the SQL JOIN operator.
需要能够通过使用SQL JOIN操作符来获得这些信息。
You can tell the type of join (INNER, RIGHT, or LEFT) by the details of the join operator.
可以根据连接操作符的细节判断连接的类型(INNER、RIGHT或LEFT)。
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