合并单表中某两行具有相同内容的数据，变成一行数据来显示。 现为合并p1,p2字段的值。 createtabletest ( p1varchar(10), p2varchar(10), p3varchar(10), p4varchar(10), p5varchar(10) ) 无 (select aaa.p1, bbb.p2, aaa.p3, aaa.p4, aaa.p5 from (select RO
合并单表中某两行具有相同内容的数据，变成一行数据来显示。
现为合并p1,p2字段的值。
create table test
(
p1 varchar(10),
p2 varchar(10),
p3 varchar(10),
p4 varchar(10),
p5 varchar(10)
) <style> .CodeEntity .code_pieces ul.piece_anchor{width:25px;position:absolute;top:25px;left:-30px;z-index:1000;} .CodeEntity .code_pieces ul.piece_anchor li{width:25px;background: #efe;margin-bottom:2px;} .CodeEntity .code_pieces ul.piece_anchor li{border-left:3px #40AA63 solid;border-right:3px #efe solid;} .CodeEntity .code_pieces ul.piece_anchor li:hover{border-right:3px #40AA63 solid;border-left:3px #efe solid;} .CodeEntity .code_pieces ul.piece_anchor li a{color: #333;padding: 3px 10px;} .CodeEntity .code_pieces .jump_to_code{visibility:hidden;position:relative;} .CodeEntity .code_pieces .code_piece:hover .jump_to_code{visibility:visible;} .CodeEntity .code_pieces .code_piece:hover .jump_to_code a{text-decoration:none;} .CodeEntity .code_pieces h2 i{float:right;font-style:normal;font-weight:normal;} .CodeEntity .code_pieces h2 i a{font-size:9pt;background: #FFFFFF;color:#00A;padding: 2px 5px;text-decoration:none;} </style> <!—ecms
- –> <!—ecms
- $velocityCount
–> <!—ecms
–>
(select aaa.p1, bbb.p2, aaa.p3, aaa.p4, aaa.p5 from (select ROW_NUMBER() OVER(ORDER BY ppp.p3) as RowNumber1, ppp.* from test ppp where ppp.p2 is null) aaa, (select ROW_NUMBER() OVER(ORDER BY qqq.p3) as RowNumber1, qqq.* from test qqq where qqq.p1 is null) bbb where (aaa.p3 = bbb.p3 and aaa.p4 = bbb.p4) ) union all( selec<em style="color:transparent">本文来源gao.dai.ma.com搞@代*码#网</em>t * from test where (p3,p4) not in (select p3,p4 from test group by p3,p4 having count(*)>1))
转载请注明原文链接：合并单表中某两行具有相同内容的数据
