使用游标方法

1.使用游标

USE msdb
GO

--????
DECLARE
    @Result NVARCHAR(4000),
    @name sys.SYSNAME,
    @next_scheduled_run_date DATETIME
SELECT
    @Result = N''

DECLARE cursor_mailbody CURSOR STATIC LOCAL FORWARD_ONLY READ_ONLY
FOR
    SELECT
        b.name,
        a.next_scheduled_run_date
    FROM msdb.dbo.sysjobactivity a WITH (NOLOCK),
        (
             SELECT
                MAX(a.session_id) AS session_id,
                a.job_id,
                b.name
             FROM msdb.dbo.sysjobactivity a WITH (NOLOCK),
                msdb.dbo.sysjobs b WITH (NOLOCK)
             WHERE a.job_id = b.job_id
                AND b.enabled = 1
             GROUP BY
                a.job_id,
                b.name
        ) b
    WHERE a.session_id = b.session_id
        AND a.job_id = b.job_id
        --AND DATEADD(n, 30, a.next_scheduled_run_date) < GETDATE()

OPEN cursor_mailbody
FETCH NEXT FROM cursor_mailbody INTO @name, @next_scheduled_run_date

WHILE (@@FETCH_STATUS = 0) 
BEGIN
    SET @Result = @Result + CHAR(13) + CHAR(10)
        + CAST(@name AS NVARCHAR(255)) + N','
        + ISNULL(CONVERT(CHAR(23), @next_scheduled_run_date, 121), 'NULL')

    FETCH NEXT FROM cursor_mailbody INTO @name, @next_scheduled_run_date
END
CLOSE cursor_mailbody
DEALLOCATE cursor_mailbody


--??xml for path
DECLARE @table TABLE
(
    [name] VARCHAR(20)
)
INSERT @table
(
    [name]
)
SELECT 'a' UNION ALL
SELECT 'b' UNION ALL
SELECT 'c' UNION ALL
SELECT 'd' UNION ALL
SELECT 'e'

SELECT STUFF
(
    (
        SELECT ',' + [name]
        FROM @table
        FOR XML PATH('')
    ),
    1,1,''
)