javascript 删除重复表格行代码(1/2)

时间:2013-08-04 08:10:02  来源:第二电脑网  作者:第二电脑网

  第二电脑网导读:(3, 'bbb'), (4, 'ccc'), (4, 'ddd'), (5, 'eee') select * from Dup1 SELECT Col1, Col2, COUNT(*) AS DupCountFROM Dup1GROUP BY Col1, Col2HAVING COUNT(*) > 1 1 2...
  正文:


create table Dup1
(
Col1 int null,
Col2 varchar(20) null
)
insert into Dup1 values
(1, 'aaa'),
(2, 'aaa'),
(2, 'aaa'),
(2, 'aaa'),
(3, 'bbb'),
(3, 'bbb'),
(4, 'ccc'),
(4, 'ddd'),
(5, 'eee')
select * from Dup1


SELECT Col1, Col2, COUNT(*) AS DupCountFROM Dup1GROUP BY Col1, Col2HAVING COUNT(*) > 1

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