1

我需要选择在特定列中具有不同值的任何记录的所有列,所以如果我有

Firts|Last|State|
Jacck|Redy|NJ
Jacck|Redy|NJ
Jacck|Redy|NY
Jacck|Redy|NY
Jacck|Redy|OH
Jacck|Redy|OH

我想得到

 Jacck|Redy|NJ
 Jacck|Redy|NY
 Jacck|Redy|OH
4

1 回答 1

0
 select first, last, state from table1 GROUP BY first, last, state

或者

 select distinct first, last,state from table1
于 2013-03-01T03:19:56.960 回答