If there is an index on the join column, the costs will be significantly less; otherwise the database server must perform table scans for all tables, both outer and inner tables.
如果连接列上有一个索引，那么其成本会相当低；否则，数据库服务器就必须对所有表(外部和内部表)执行表扫描。
Create an expression that performs an inner equi-join on the ID columns in the two result sets by clicking the... button or by specifying it manually.
通过单击…按钮或手动指定，创建一个表达式，该表达式执行两个结果集中的id列上的内部相等连接。
The merge statement first does a join (outer join or inner join, depending on the merge statement) between source and target table rows.
merge语句首先进行(外部联接或者内部联接，取决于merge语句)源与目标表行之间的联接。
By default, related tables are joined using an inner join that creates a result set based on rows containing matching information in the join columns.
默认情况下，相关表通过使用内部联接进行联接，该内部联接基于包含联接列中匹配信息的行创建结果集。
Join with your Twin Flame now on the inner planes.
我在这里，带着我的双生火焰，帮助你们准备。
Join with your Twin Flame now on the inner planes.
我在这里，带着我的双生火焰，帮助你们准备。
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