使用过程来删除临时表有以下两个优点
Using a procedure to drop the temporary table has these two benefits
否则，处理器必须先使用临时工作表对记录进行排序。
Otherwise, the processor has to use a temporary work table to sort the records first.
否则，处理器必须先使用临时工作表对记录进行排序。
Otherwise, the processor has to use a temporary work table to sort the records first.
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