Formatting SQL Server Query Output - sql-server

Question

I like to get the SQL Server query output in the following way. Currently my output is:
Class | Student ID | Student Name
------+------------+---------------
121 S1 Test 1
121 S2 Test 2
500 S22 Test a
500 S23 Test b
But I want the data output in the following way -
Class: 121
--------------------------------
Student ID | Student Name
-----------+---------------
S1 Test 1
S2 Test 2
Class: 500
--------------------------------
Student ID | Student Name
-----------+---------------
S22 Test a
S23 Test b
Could someone help me how can I achieve these?
Thanks

Answer 1

While I would agree SQL isn't the place to do your formatting.... sometimes you get stuck....
This Code
select '121' as Class, 'S1 ' as [Student ID], 'Test 1' as [Student Name] into #test
union select '121', 'S2 ', 'Test 2'
union select '500', 'S22 ', 'Test a'
union select '500', 'S23 ', 'Test b'
;
WITH class
AS (
SELECT DISTINCT class
FROM #test
)
,student
AS (
SELECT class
,(
SELECT STUFF((
SELECT CHAR(13) + t.[Student ID] + space(len('Student ID | ') - len(t.[Student ID])) + [Student Name]
FROM #Test t
WHERE t.[class] = class.[class]
FOR XML PATH('')
,type
).value('.[1]', 'nvarchar(max)'), 1, 1, '')
) AS info
FROM class
)
,theoutput
AS (
SELECT 'Class: ' + class + CHAR(13) + '------------------------' + CHAR(13) + 'Student ID | Student Name' + CHAR(13) + info + CHAR(13) + CHAR(13) AS txt
FROM student c
)
SELECT STUFF((
SELECT CHAR(13) + txt
FROM theoutput
FOR XML PATH('')
,type
).value('.[1]', 'nvarchar(max)'), 1, 1, '')
Will Produce
Class: 121
------------------------
Student ID | Student Name
S1 Test 1
S2 Test 2
Class: 500
------------------------
Student ID | Student Name
S22 Test a
S23 Test b

Answer 2

By using While loop we can get the Desired result Created sample data
IF OBJECT_ID('Tempdb..#TEMP') IS NOT NULL
Drop table #TEMP
;With cte(Class, StudentID, StudentName)
AS
(
SELECT 121,'S1' ,'Test 1' UNION ALL
SELECT 121,'S2' ,'Test 2' UNION ALL
SELECT 500,'S22','Test a' UNION ALL
SELECT 500,'S23','Test b'
)
SELECT * INTO #TEMP FROM CTe
SET NOCOUNT ON
DECLARE #CLassCOUnt INT
,#minID INT
,#maxid INT
,#Sql NVARCHAR(max)
,#SelectQuery INT
DECLARE #Table TABLE (
ID INT IDENTITY
,CLass INT
)
INSERT INTO #Table (CLass)
SELECT DISTINCT Class
FROM #TEMP
SELECT #minID = min(Id)
FROM #Table
SELECT #maxid = MAX(Id)
FROM #Table
WHILE (#minID <= #maxid)
BEGIN
SELECT #SelectQuery = Class
FROM #Table
WHERE ID = #minID
SELECT #Sql = 'SELECT Class, StudentID, StudentName FROM #TEMP WHERE Class=' + CAST(#SelectQuery AS VARCHAR)
PRINT 'Result Of Class:'+ CAST(#SelectQuery AS VARCHAR)+CHAR(13)+CHAR(10)+'------------------------'
PRINT #Sql
EXEC (#Sql)
SET #minID = #minID + 1
END
SET NOCOUNT OFF