Access数据库删除重复记录,只保留一条记录的做法

Access数据库删除重复记录,只保留一条记录的做法:

只保留id最小的记录方法:
delete from [表名] where id not in (select min(id) from [表名] group by [带重复记录的字段名称])

只保留id最大的记录方法:
delete from [表名] where id not in (select max(id) from [表名] group by [带重复记录的字段名称])

				
时间: 2024-08-14 06:41:41

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