比如 表A
ID,UCODE, KEY
------------------------
1,A01,0
2,A01,0
3,A01,1
4,A01,0
5,A01,1
我要想的结果,就是汇总KEY,一共是几条,是1的几条,是0的几条
UCODE,KEY-NOTE
----------------------------------
A01, 一共5条,1的2条,0的3条
------解决方案--------------------
IF OBJECT_ID('#t') IS NOT NULL
DROP TABLE #t
GO
CREATE TABLE #t
(
ID INT,
Ucode VARCHAR(32),
[KEY] int
)
INSERT INTO #t(ID,Ucode,[Key]) VALUES(1,'A01',0)
INSERT INTO #t(ID,Ucode,[Key]) VALUES(2,'A01',0)
INSERT INTO #t(ID,Ucode,[Key]) VALUES(3,'A01',1)
INSERT INTO #t(ID,Ucode,[Key]) VALUES(4,'A01',0)
INSERT INTO #t(ID,Ucode,[Key]) VALUES(5,'A01',1)
SELECT Ucode, COUNT(CASE WHEN [KEY] = 0 THEN 1 END) N'0的条数',
COUNT(CASE WHEN [key] = 1 THEN 1 END) N'1的条数',
COUNT([KEY]) N'汇总'
FROM #t GROUP BY Ucode
------解决方案--------------------
哈哈,思路差不多

------解决方案--------------------
不过应该是Count()吧