自连接（Self Joins） 表与自己的连接，表名在FROM子句中出现两次，并通过别名来指定连接条件中的列
基于4个网页-相关网页
Self-Joins 自连接 ; 自联接
Self-Joins and Aliases 自身连接与别名
Self Non-Equi-Joins 不相等条件的自连接
self joins
自我加入
以上为机器翻译结果，长、整句建议使用 人工翻译 。
This step requires a minimum of 3 tables to be joined (where the 3 tables can include self-joins).
这个步骤至少需要3个连接表(3个连接表中包含自连接)。
youdao
Willis does his cutesy, self-adoring thing, and most of the cast joins in, including Andie MacDowell as his love interest and Danny Aiello as his sidekick.
NEWYORKER: Hudson Hawk
The self-interest paradigm does not go into quarantine when one joins or leads a non-profit.
FORBES: Like Humans Need Oxygen, Bureaucrats Always Need More Money
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