我尝试了两种方法。第一个有语法错误。第二个推送结果中的每一列,而不只是推送与@LabelID匹配的列。
SELECT (SELECT CASE @LabelID
WHEN 1 THEN count(h.ee_cmn_idfr) as 'DIR'
WHEN 2 THEN count(h.ee_cmn_idfr) as 'DD'
WHEN 3 THEN count(h.ee_cmn_idfr) as 'OD_Staff'
WHEN 4 THEN count(h.ee_cmn_idfr) as 'DI_BC'
WHEN 5 THEN count(h.ee_cmn_idfr) as 'DI_PLs'
WHEN 6 THEN count(h.ee_cmn_idfr) as 'DI_PQAs'
WHEN 7 THEN count(h.ee_cmn_idfr) as 'DI_FTEs'
WHEN 8 THEN count(h.ee_cmn_idfr) as 'AIPQBBC'
WHEN 9 THEN count(h.ee_cmn_idfr) as 'AIPQB_PL'
WHEN 10 THEN count(h.ee_cmn_idfr) as 'AIPQB_PQA'
WHEN 11 THEN count(h.ee_cmn_idfr) as 'AIPQB_GS13S'
WHEN 12 THEN count(h.ee_cmn_idfr) as 'AIPQB_FTE'
WHEN 13 THEN count(h.ee_cmn_idfr) as 'IT_Staff'
WHEN 14 THEN count(h.ee_cmn_idfr) as 'IT_Sup'
)
第二种方法:
SELECT
CASE WHEN @LabelID = 1 THEN count(h.ee_cmn_idfr) as 'DIR'
,CASE WHEN @LabelID = 2 THEN count(h.ee_cmn_idfr) END as 'DD'
,CASE WHEN @LabelID = 3 THEN count(h.ee_cmn_idfr) END as 'OD_Staff'
,CASE WHEN @LabelID = 4 THEN count(h.ee_cmn_idfr) END as 'DI_BC'
,CASE WHEN @LabelID = 5 THEN count(h.ee_cmn_idfr) END as 'DI_PLs'
,CASE WHEN @LabelID = 6 THEN count(h.ee_cmn_idfr) END as 'DI_PQAs'
,CASE WHEN @LabelID = 7 THEN count(h.ee_cmn_idfr) END as 'DI_FTEs'
,CASE WHEN @LabelID = 8 THEN count(h.ee_cmn_idfr) END as 'AIPQBBC'
,CASE WHEN @LabelID = 9 THEN count(h.ee_cmn_idfr) END as 'AIPQB_PL'
,CASE WHEN @LabelID = 10 THEN count(h.ee_cmn_idfr) END as 'AIPQB_PQA'
,CASE WHEN @LabelID = 11 THEN count(h.ee_cmn_idfr) END as 'AIPQB_GS13S'
,CASE WHEN @LabelID = 12 THEN count(h.ee_cmn_idfr) END as 'AIPQB_FTE'
,CASE WHEN @LabelID = 13 THEN count(h.ee_cmn_idfr) END as 'IT_Staff'
,CASE WHEN @LabelID = 14 THEN count(h.ee_cmn_idfr) END as 'IT_Sup'
答案 0 :(得分:1)
以下是使用动态SQL的方法:
示例数据:
IF OBJECT_ID('tempdb..#INPUT') IS NOT NULL
DROP TABLE #INPUT;
CREATE TABLE #INPUT(RowID INT IDENTITY(1, 1)
, ee_cmn_idfr INT);
INSERT INTO #INPUT(ee_cmn_idfr)
VALUES
(1),
(1),
(1),
(1),
(1),
(1),
(1),
(1),
(1),
(1),
(1),
(1);
SQL QUERY:
DECLARE @LabelID INT = 1; --<-- set the labelID
DECLARE @SQL NVARCHAR(MAX) = ''; --<-- declare a variable to hold the dynamic sql
SELECT @SQL = 'SELECT COUNT(ee_cmn_idfr) AS '+QUOTENAME(CASE @LabelID
WHEN 1 THEN 'DIR'
WHEN 2 THEN 'DD'
WHEN 3 THEN 'OD_Staff'
WHEN 4 THEN 'DI_BC'
WHEN 5 THEN 'DI_PLs'
WHEN 6 THEN 'DI_PQAs'
WHEN 7 THEN 'DI_FTEs'
WHEN 8 THEN 'AIPQBBC'
WHEN 9 THEN 'AIPQB_PL'
WHEN 10 THEN 'AIPQB_PQA'
WHEN 11 THEN 'AIPQB_GS13S'
WHEN 12 THEN 'AIPQB_FTE'
WHEN 13 THEN 'IT_Staff'
WHEN 14 THEN 'IT_Sup'
END)+' FROM #INPUT'; --<-- you'll have to change the name of the table accordingly
PRINT(@SQL); --<-- print out the query not needed but nice to have for debuging
EXEC (@SQL); --<-- execute the dynamic sql
PRINT(@SQL)
将打印以下内容:
SELECT COUNT(ee_cmn_idfr) AS [DIR] FROM #INPUT
结果:
上面的代码将选择列名,如下所示: