TSQL：在单个select语句中返回两个函数的结果

Question

是否可以在select语句中返回两个函数调用的结果？

我有下面的TSQL剪辑，接受两个csv字符串，我想按顺序插入临时表。 dbo.Split获取字符串并返回值表。

段

DECLARE @MeasureCategoryIDs as nvarchar(100)
DECLARE @SnapshotIDs as nvarchar(100)

    SET @MeasureCategoryIDs = '1,2,3'
    SET @SnapshotIDs = '9,8,7'

    CREATE TABLE #tmpMeasureCats
    (
        MeasureCatID int PRIMARY KEY NOT NULL,
        SnapshotID int NOT NULL
    )

    INSERT INTO #tmpMeasureCats
        SELECT value FROM dbo.Split(',',@MeasureCategoryIDs), value FROM dbo.Split(',',@SnapshotIDs)

    DROP TABLE #tmpMeasureCats

分割

ALTER FUNCTION [dbo].[Split] 
   (  @Delimiter varchar(5), 
      @List      varchar(8000)
   ) 
   RETURNS @TableOfValues table 
      (  RowID   smallint IDENTITY(1,1), 
         [Value] varchar(50) 
      ) 
AS 
   BEGIN

      DECLARE @LenString int 

      WHILE len( @List ) > 0 
         BEGIN 

            SELECT @LenString = 
               (CASE charindex( @Delimiter, @List ) 
                   WHEN 0 THEN len( @List ) 
                   ELSE ( charindex( @Delimiter, @List ) -1 )
                END
               ) 

            INSERT INTO @TableOfValues 
               SELECT substring( @List, 1, @LenString )

            SELECT @List = 
               (CASE ( len( @List ) - @LenString ) 
                   WHEN 0 THEN '' 
                   ELSE right( @List, len( @List ) - @LenString - 1 ) 
                END
               ) 
         END

      RETURN 

   END 

在两个csv字符串上调用split函数的结果

当我运行上面的代码段时，我收到以下错误

  

第15行，第15行，第1行，第15行   关键字“FROM”附近的语法不正确。

我正在寻找的是

Col1     Col2
1        9
2        8
3        7

是否有另一种方法可以将Select语句用来返回Insert的两个值？

Answer 1

INSERT INTO #tmpMeasureCats(MeasureCatID, SnapshotID)
select t1.value, t2.value
from
(SELECT value, row_number() over (order by (select 1)) rn FROM dbo.Split(',',@MeasureCategoryIDs)) t1
join
(SELECT value, row_number() over (order by (select 1)) rn FROM dbo.Split(',',@SnapshotIDs)) t2
on t1.rn = t2.rn

Answer 2

假设您的功能按预期工作

INTO #tmpMeasureCats
SELECT 
    A.value as 'MeasureCat', 
    B.value as 'Snapshot'
FROM 
    dbo.Split(',',@MeasureCategoryIDs) A, 
    dbo.Split(',',@SnapshotIDs) B

Answer 3

INSERT INTO #tmpMeasureCats
     SELECT value FROM dbo.Split(',',@MeasureCategoryIDs)
INSERT INTO #tmpMeasureCats
SELECT value FROM dbo.Split(',',@SnapshotIDs)