Question

when i issue select statement like

SELECT EMPID,ENAME,SALARY,DEPARTMENT from EMPLOYEE

then data shows like

EMPID     ENAME    SALARY   DEPARTMENT
---------------------------------------------
01        TEST1    2000     A/C
02        TEST2    3000     SALES

but now i want to show it like

EMPID       01      02

ENAME       TEST1   TEST2

SALARY      2000    3000

DEPARTMENT  A/C     SALES

so how to write sql for the above query.

Answer 1

Maybe something like this:

First some test data:

CREATE TABLE tblTempValues
    (
        EMPID VARCHAR(100), 
        ENAME VARCHAR(100),
        SALARY INT, 
        DEPARTMENT VARCHAR(100)
    )

INSERT INTO tblTempValues
VALUES
    ('01','TEST1',2000,'A/C'),
    ('02','TEST2',3000,'SALES')

The get the columns to PIVOT on. I use the ROW_NUMBER over the EMPID:

DECLARE @cols VARCHAR(MAX)
;WITH CTE
AS
(
    SELECT
        ROW_NUMBER() OVER(ORDER BY tblTempValues.EMPID) AS RowNbr
    FROM
        tblTempValues
)
SELECT
    @cols=COALESCE(@cols +','+QUOTENAME(RowNbr),QUOTENAME(RowNbr))
FROM
    CTE

Then do a dynamic pivot like this. The orderWeight so that you will have the order of the columns:

DECLARE @query NVARCHAR(4000)=
N';WITH CTE
AS
(
    SELECT ''EMPID'' AS ID, CAST(EMPID AS VARCHAR(MAX)) AS Value, ROW_NUMBER() OVER(ORDER BY EMPID) AS RowId,1 as orderWeight FROM tblTempValues UNION ALL
    SELECT ''ENAME'' AS ID, CAST(ENAME AS VARCHAR(MAX)) AS Value, ROW_NUMBER() OVER(ORDER BY EMPID) AS RowId,2 as orderWeight FROM tblTempValues UNION ALL
    SELECT ''SALARY'' AS ID, CAST(SALARY AS VARCHAR(MAX)) AS Value, ROW_NUMBER() OVER(ORDER BY EMPID) AS RowId,3 as orderWeight FROM tblTempValues UNION ALL
    SELECT ''DEPARTMENT'' AS ID, CAST(DEPARTMENT AS VARCHAR(MAX)) AS Value, ROW_NUMBER() OVER(ORDER BY EMPID) AS RowId,4 as orderWeight FROM tblTempValues
)
SELECT
    ID,'+@cols+'
FROM
    CTE
PIVOT
(
    MAX(Value)
    FOR RowId IN('+@cols+')

) AS p'

EXECUTE(@query)

Then in my case I will drop the temp table

DROP TABLE tblTempValues