표의 2 열에서 쉼표로 구분 된 목록을 얻는 방법

Question

열을 문자열 목록으로 바꾸는 예가 있지만 내 사례가 다르다고 생각합니다.

은 내가 이런 일을 좀하고 싶습니다 아래의 디스크 공간 성장과 테이블을 모니터링하는 프로젝트를하고있는 중이 야 : 나는 [다음 자동 증가]를 얻을 수 있었다

Drive [Next Autogrowth]       [DB Files] 
F  Database IntEng2 will grow 2 GB in 27 Weeks Data 
G  N/A           Transaction Log 
H  N/A           Data, Transaction Log 
I  N/A           TempDB Data, TempDB Transaction Log 

하지만 난 고민하고 [DB 파일] 열.

도와 주시겠습니까?

1) when in the FILE_TYPE column there is ROW 
    A) when in the DATABASENAME column you have "tempdb" - add "TempDB Data" to the [DB Files] ELSE write "Data" 

2) when in the FILE_TYPE column there is LOG 
    A) when in the DATABASENAME column you have "tempdb" - add "TempDB Transaction Log" to the [DB Files] ELSE write "Transaction Log" 

표는 다음과 같습니다 :

SET NOCOUNT ON 

DECLARE @T TABLE( 
       DRIVE NCHAR(1) 
       ,FILE_TYPE NVARCHAR(20) 
       ,DATABASENAME NVARCHAR(100) 
       ,AUTOGROWTH_IN_MB INT 
       ,WEEKS_TO_AUTOGROWTH INT 
       ,MONTHS_TO_AUTOGROWTH INT 
      ) 


INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('F','ROWS','Bocss2',1024,218,49) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('F','ROWS','IntEng2',2048,27,7) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('H','ROWS','Shop',64,0,0) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('G','LOG','Bocss2',2048,147,87) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('G','LOG','IntEng2',1000,254,133) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('G','LOG','Shop',64,0,0) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('H','LOG','Bocss2',2014,147,87) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('H','LOG','IntEng2',512,255,133) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('I','ROWS','tempdb',1024,2046,614) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('I','ROWS','tempdb',1024,2046,682) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('I','ROWS','tempdb',1024,2046,613) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('I','ROWS','tempdb',1024,2046,682) 
INSERT INTO @T (DRIVE,FILE_TYPE,DATABASENAME,AUTOGROWTH_IN_MB,WEEKS_TO_AUTOGROWTH,MONTHS_TO_AUTOGROWTH) VALUES('G','LOG','tempdb',1024,2,1) 


SELECT * FROM @T 

내가 지금 가지고하는 것은 :

는 따라이 규칙이 있습니다

;WITH R1 AS (
select 
    * 
    ,the_closest_event=ROW_NUMBER() OVER (PARTITION BY DRIVE ORDER BY 
            CASE WHEN (WEEKS_TO_AUTOGROWTH < CAST(MONTHS_TO_AUTOGROWTH * 4.3 AS INT)) THEN 
              WEEKS_TO_AUTOGROWTH ELSE MONTHS_TO_AUTOGROWTH 
             END) 
    ,NextAutoGrowth= CASE WHEN (DATABASENAME = 'tempdb') 
         OR (FILE_TYPE = 'LOG') THEN 'N\A' 
        ELSE 

        CASE WHEN (WEEKS_TO_AUTOGROWTH < CAST(MONTHS_TO_AUTOGROWTH * 4.3 AS INT)) THEN --4.3 BECAUSE 1 MONTH = 4.3 WEEKS 
           CASE WHEN (WEEKS_TO_AUTOGROWTH > 0) THEN 
           'Database ' + DATABASENAME + ' will grow ' + 

            CASE WHEN (AUTOGROWTH_IN_MB >= 1024) THEN -- 1 GB 

             CAST(CAST(CAST (AUTOGROWTH_IN_MB/1024.00 AS NUMERIC(18,2))AS REAL) AS VARCHAR) + ' GB in ' 
            ELSE -- use MB 
             CAST (AUTOGROWTH_IN_MB AS VARCHAR) + ' MB in ' 
            END /*case autogrowth is greater than 1 GB*/ 

            + CAST (WEEKS_TO_AUTOGROWTH AS VARCHAR) + ' Weeks' 
            ELSE 'N\A' 

           END /*case number of weeks > 0*/ 
         ELSE 
           CASE WHEN (MONTHS_TO_AUTOGROWTH > 0) THEN 
           'Database ' + DATABASENAME + ' will grow ' + 

            CASE WHEN (AUTOGROWTH_IN_MB >= 1024) THEN -- 1 GB 

             CAST(CAST(CAST (AUTOGROWTH_IN_MB/1024.00 AS NUMERIC(18,2))AS REAL) AS VARCHAR) + ' GB in ' 
            ELSE -- use MB 
             CAST (AUTOGROWTH_IN_MB AS VARCHAR) + ' MB in ' 
            END /*case autogrowth is greater than 1 GB*/ 

            + CAST (MONTHS_TO_AUTOGROWTH AS VARCHAR) + ' Months' 
            ELSE 'N\A' 

           END /*case number of months > 0 */ 

        END /*CASE - weeks or months */ 

      END /*case when it is tempdb */ 
from @T 
) 

SELECT 
* FROM R1 

Answer 1

재미있는 문제 :

;with x as (
select distinct drive, case file_type when 'ROWS' then 
      case databasename when 'tempdb' then 'TempDB Data' else 'Data' end 
      else 
      case databasename when 'tempdb' then 'TempDB Transaction Log' else 'Transaction Log' end 
     end as typ 
from @T 
), 
a as (
    select *, row_number() over(partition by drive order by weeks_to_autogrowth) as rn 
    from @t 
) 
select distinct x.drive, 
case when a.autogrowth_in_mb > 0 and a.weeks_to_autogrowth > 0 then 
    'Database ' + a.databasename + ' will grow ' + cast(a.autogrowth_in_mb/1024. as varchar) + ' GB in ' + cast(a.weeks_to_autogrowth as varchar) + ' weeks' 
else 'N/A' end as [Next Autogrowth], 
substring(y.list, 1, len(y.list)-1) 
from 
x 
inner join a on x.drive = a.drive and a.rn = 1 
cross apply 
(
    select t2.typ + ', ' as [text()] 
    from x t2 
    where t2.drive = x.drive 
    for xml path('') 
) y(list) 

Answer 2

다음 쿼리를 시도 - 수도 이것이 도움이 될 수 있습니다.

select 
DRIVE Drive, 
CASE 
    WHEN FILE_TYPE = 'rows' THEN 
    CASE 
     WHEN DATABASENAME = 'tempdb' THEN 'TempDB Data' 
     ELSE 'Data' 
    END 
WHEN FILE_TYPE = 'log' THEN 
    CASE 
     WHEN DATABASENAME = 'tempdb' THEN 'Data, TempDB Transaction Log' 
     ELSE 'Data, Transaction Log' 
    END 
ELSE '' 
END 
DBFiles 
from 
t