将列与t-sql中的值列表进行比较

http://www.sommarskog.se/arrays-in-sql.html

创建一个拆分函数,并按如下方式使用:

SELECT
    *
    FROM YourTable  y
    INNER JOIN dbo.splitFunction(@Parameter) s ON y.ID=s.Value

I prefer the number table approach

要使此方法起作用,您需要执行以下一次性时间表设置:

SELECT TOP 10000 IDENTITY(int,1,1) AS Number
    INTO Numbers
    FROM sys.objects s1
    CROSS JOIN sys.objects s2
ALTER TABLE Numbers ADD CONSTRAINT PK_Numbers PRIMARY KEY CLUSTERED (Number)

设置数字表后,创建此函数:

CREATE FUNCTION [dbo].[FN_ListToTable]
(
     @SplitOn  char(1)      --REQUIRED, the character to split the @List string on
    ,@List     varchar(8000)--REQUIRED, the list to split apart
)
RETURNS TABLE
AS
RETURN 
(

    ----------------
    --SINGLE QUERY-- --this will not return empty rows
    ----------------
    SELECT
        ListValue
        FROM (SELECT
                  LTRIM(RTRIM(SUBSTRING(List2, number+1, CHARINDEX(@SplitOn, List2, number+1)-number - 1))) AS ListValue
                  FROM (
                           SELECT @SplitOn + @List + @SplitOn AS List2
                       ) AS dt
                      INNER JOIN Numbers n ON n.Number < LEN(dt.List2)
                  WHERE SUBSTRING(List2, number, 1) = @SplitOn
             ) dt2
        WHERE ListValue IS NOT NULL AND ListValue!=''

);
GO 

select * from dbo.FN_ListToTable(',','1,2,3,,,4,5,6777,,,')

输出:

ListValue
-----------------------
1
2
3
4
5
6777

(6 row(s) affected)

您可以将CSV字符串传递到过程中,并仅处理给定ID的行:

SELECT
    y.*
    FROM YourTable y
        INNER JOIN dbo.FN_ListToTable(',',@GivenCSV) s ON y.ID=s.ListValue

recently gave 对于这个问题。

SELECT * FROM MyTable
WHERE ',' + 'comma,separated,list,of,words' + ','
  LIKE '%,' + MyTable.word + ',%';

IN()

SELECT * FROM MyTable
WHERE word IN ( ?, ?, ?, ?, ?, ?, ?, ? );

分隔逗号分隔字符串时,必须确定占位符的数量。然后通过 一个值 从每个参数的列表中。

在() 谓词非常笨拙,然后将值插入到临时表中,然后 JOIN 在主表上:

CREATE TEMPORARY TABLE TempTableForSplitValues (word VARCHAR(20));

...split your comma-separated list and INSERT each value to a separate row...

SELECT * FROM MyTable JOIN TempTableForSplitValues USING (word);

• Dynamic SQL Comma Delimited Value Query
• Passing a varchar full of comma delimited values to a SQL Server IN function
• Parameterized Queries with Like and In
• Parameterizing a SQL IN clause?