如何将空格或逗号分隔的字符串传递给存储过程和过滤结果? 我正在尝试做类似的事情 -
Parameter Value
--------------------------
@keywords key1 key2 key3
然后是我想要的存储过程
另一个例子:
col1 | col2 | col3
------------------------------------------------------------------------
hello xyz | abc is my last name | and i'm a developer
hello xyz | null | and i'm a developer
如果我搜索任何后续内容,它应该返回每个?
“xyz developer”返回2行
“xyz abc”返回1行
“abc developer”返回1行
“hello”返回2行
“hello developer”返回2行
“xyz”返回2行
答案 0 :(得分:2)
由于您无法使用表参数(不在SQL Server 2008上),请尝试传入CSV sting并让存储过程将其拆分为多行。
在SQL Server中分割字符串的方法有很多种。本文涵盖几乎所有方法的PRO和CON:
您需要创建拆分功能。这就是如何使用拆分功能:
SELECT
*
FROM YourTable y
INNER JOIN dbo.yourSplitFunction(@Parameter) s ON y.ID=s.Value
I prefer the number table approach to split a string in TSQL但是有很多方法可以在SQL Server中拆分字符串,请参阅上一个链接,该链接解释了每个链接的PRO和CON。
要使Numbers Table方法起作用,您需要进行一次性表设置,这将创建一个包含1到10,000行的表Numbers
:
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Numbers表后,创建此拆分功能:
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
现在,您可以轻松地将空格分隔的字符串拆分为表格并加入其中或使用它,但是您需要此代码基于OP最新的问题编辑:
CREATE TABLE YourTable (PK int, col1 varchar(20), col2 varchar(20), col3 varchar(20))
--data from question
INSERT INTO YourTable VALUES (1,'hello xyz','abc is my last name','and i''m a developer')
INSERT INTO YourTable VALUES (2,'hello xyz',null,'and i''m a developer')
CREATE PROCEDURE YourProcedure
(
@keywords varchar(1000)
)
AS
SELECT
@keywords AS KeyWords,y.*
FROM (SELECT
t.PK
FROM dbo.FN_ListToTable(' ',@keywords) dt
INNER JOIN YourTable t ON t.col1 LIKE '%'+dt.ListValue+'%' OR t.col2 LIKE '%'+dt.ListValue+'%' OR t.col3 LIKE '%'+dt.ListValue+'%'
GROUP BY t.PK
HAVING COUNT(t.PK)=(SELECT COUNT(*) AS CountOf FROM dbo.FN_ListToTable(' ',@keywords))
) dt
INNER JOIN YourTable y ON dt.PK=y.PK
GO
--from question
EXEC YourProcedure 'xyz developer'-- returns 2 rows
EXEC YourProcedure 'xyz abc'-- returns 1 row
EXEC YourProcedure 'abc developer'-- returns 1 row
EXEC YourProcedure 'hello'-- returns 2 rows
EXEC YourProcedure 'hello developer'-- returns 2 rows
EXEC YourProcedure 'xyz'-- returns 2 rows
输出:
KeyWords PK col1 col2 col3
-------------- ----- ---------- -------------------- --------------------
xyz developer 1 hello xyz abc is my last name and i'm a developer
xyz developer 2 hello xyz NULL and i'm a developer
(2 row(s) affected)
KeyWords PK col1 col2 col3
-------------- ----- ---------- -------------------- --------------------
xyz abc 1 hello xyz abc is my last name and i'm a developer
(1 row(s) affected)
KeyWords PK col1 col2 col3
-------------- ----- ---------- -------------------- --------------------
abc developer 1 hello xyz abc is my last name and i'm a developer
(1 row(s) affected)
KeyWords PK col1 col2 col3
-------------- ----- ---------- -------------------- --------------------
hello 1 hello xyz abc is my last name and i'm a developer
hello 2 hello xyz NULL and i'm a developer
(2 row(s) affected)
KeyWords PK col1 col2 col3
--------------- ----- ---------- -------------------- --------------------
hello developer 1 hello xyz abc is my last name and i'm a developer
hello developer 2 hello xyz NULL and i'm a developer
(2 row(s) affected)
KeyWords PK col1 col2 col3
-------------- ----- ---------- -------------------- --------------------
xyz 1 hello xyz abc is my last name and i'm a developer
xyz 2 hello xyz NULL and i'm a developer
(2 row(s) affected)
答案 1 :(得分:1)
您可以尝试以下方式:
select firstname, lastname from @test t1
inner join persondata t on t.firstname like '%' + t1.x + '%' or t.lastname like '%' + t1.x + '%'
group by firstname, lastname
having count(distinct x) = (select count(*) from @test)
其中@test是包含拆分结果的表格。如果persondata中有很多列,您可能只想从此查询返回一个ID,并将其用作实际返回数据的子查询,因此您不必按如此多的列进行分组。
编辑:您也可以使用游标和另一个临时表/表变量,但我对SP中的游标有过敏反应。