1 What is an inner join in SQL? 1 What is an outer join in SQL? 1 What is full join in SQL? 1 What is left join in SQL Server? 1 What is a right join in SQL Server? 1 What is database engine in SQL ...
原子性（A） 一个事务的所有系列操作步骤被看成一个动作，所有的步骤要么全部完成，要么一个也不会完成 ...
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