sql案例----統計某字段中相同值的個數

1、統計某字段中相同的值個數

需求：統計表ZB_XMGSHZ中 F_QK='塔河十區' 和 F_QK='塔河十二區'的個數，返回兩個字段

sql：

select sum(f_qkgs1) as f_qkgs3,sum(f_qkgs2) as f_qkgs4 from (select  count(1) as f_qkgs1,0 AS f_qkgs2 FROM ZB_XMGSHZ WHERE F_QK='塔河十區'

UNION all

select  0 as f_qkgs1，count(1) as f_qkgs2 from ZB_XMGSHZ where F_QK='塔河十二區' )