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参考: http://layui.xhcen.com/doc/doc.html 表格 http://layui.apixx.net/demo/table.html 阅读全文
posted @ 2023-06-29 14:39
microsoft-zhcn
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摘要:
1.使用局部临时表来调整自增长列 select * from #newtemp from grade --相当于备份 truncate table grade--删除数据 insert into grade select classname from #newtemp 2.使用全局临时表来调整自增长 阅读全文
posted @ 2023-06-29 11:13
microsoft-zhcn
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1.查询单列重复 select * from table where name in (select name from table group by name having count(name) > 1) 2.查询多列重复 SELECT a.* FROM table a,( SELECT nam 阅读全文
posted @ 2023-06-29 10:33
microsoft-zhcn
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