日期:2014-05-16 浏览次数:20796 次
Col1 Col2 Col3 AutoID a1 a2 a3 1 b1 b2 b3 2 c1 c2 c3 3
Col1 Col2 Col3 AutoID Col4 a1 a2 a3 1 a1::a2::a3 b1 b2 b3 2 b1::b2::b3 c1 c2 c3 3 c1::c2::c3
Select *,concat(Col1,'::',Col2,'::',Col3) as Col4 From Tb
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select *,concat(Col1,'::',Col2,'::',Col3) Col4 from Tb
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select *,concat(Col1,'::',Col2,'::',Col3) Col4 from Tb
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