数据透视表的deptno列和行数和工资？

Question

任何人都可以纠正我怎么做错了摆动的行和列？

--Trying to count no. of employees in each dept and pivoting it as deptno on columns and counts of no. of employees 
-- rows 

SELECT 10, 20, 30 
FROM emp 
PIVOT 
(
count(deptno) 
FOR empno IN ([10],[20],[30]) 
) 
as pt 

--Trying to sum of salary in each dept and pivoting it as deptno on columns and sum of salary of rows but same repeating nature 
-- rows 

SELECT 10, 20, 30 
FROM emp 
PIVOT 
(
deptno(deptno) 
FOR deptno IN ([10],[20],[30]) 
) 
as pt 

Answer 1

尝试这一个 -

DECLARE @temp TABLE (deptno INT) 

INSERT INTO @temp (deptno) 
VALUES (10),(20),(20), (40),(30) 

SELECT [10], [20], [30] 
FROM @temp 
PIVOT 
(
    COUNT(deptno) 
    FOR deptno IN ([10], [20], [30]) 
) pt