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有用的SQL语句（删除重复记录，收缩日志）
删除重复记录,将TABLE_NAME中的不重复记录保存到#TABLE_NAME中 select distinct * into #table_name from table_name delete from table_name selec
删除重复记录,将TABLE_NAME中的不重复记录保存到#TABLE_NAME中 select distinct * into #table_name from table_name delete from table_name selec
