Question

我喜欢以下列方式获取SQL Server查询输出。目前我的输出是：

Class | Student ID | Student Name
------+------------+---------------
121        S1          Test 1
121        S2          Test 2
500        S22         Test a
500        S23         Test b

但我希望以下列方式输出数据 -

Class: 121
--------------------------------

Student ID | Student Name
-----------+---------------
S1            Test 1
S2            Test 2

Class: 500
--------------------------------

Student ID | Student Name
-----------+---------------
S22            Test a
S23            Test b

有人可以帮助我如何实现这些目标？

由于

Answer 1

虽然我同意SQL不是你做格式化的地方....有时你会被卡住....

本守则

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, '')

将生产

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

通过使用While循环，我们可以获得所需结果创建的样本数据

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

格式化SQL Server查询输出

2 个答案: