如何从逗号分隔的输入参数中插入值与存储过程?
例如:
exec StoredProcedure Name 17,'127,204,110,198',7,'162,170,163,170'
你可以看到我在参数列表中有两个以逗号分隔的值列表。两者将具有相同数量的值:如果第一个具有5个以逗号分隔的值,则第二个值也具有5个以逗号分隔的值。
......和其他人一样。
如何插入这两个值? 插入一个以逗号分隔的值,但如何插入两个?
答案 0 :(得分:2)
喜欢(完整示例)
DECLARE @Inserts TABLE(
ID INT,
Val1 INT,
Val2 INT,
Val3 INT
)
DECLARE @Param1 INT,
@Param2 VARCHAR(100),
@Param3 INT,
@Param4 VARCHAR(100)
SELECT @Param1 = 17,
@Param2 = '127,204,110,198',
@Param3 = 7,
@Param4 = '162,170,163,170'
DECLARE @Table1 TABLE(
ID INT IDENTITY(1,1),
Val INT
)
DECLARE @Table2 TABLE(
ID INT IDENTITY(1,1),
Val INT
)
DECLARE @textXML XML
SELECT @textXML = CAST('<d>' + REPLACE(@Param2, ',', '</d><d>') + '</d>' AS XML)
INSERT INTO @Table1
SELECT T.split.value('.', 'nvarchar(max)') AS data
FROM @textXML.nodes('/d') T(split)
SELECT @textXML = CAST('<d>' + REPLACE(@Param4, ',', '</d><d>') + '</d>' AS XML)
INSERT INTO @Table2
SELECT T.split.value('.', 'nvarchar(max)') AS data
FROM @textXML.nodes('/d') T(split)
INSERT INTO @Inserts
SELECT @Param1,
t1.Val,
@Param3,
t2.Val
FROM @Table1 t1 INNER JOIN
@Table2 t2 ON t1.ID = t2.ID
SELECT *
FROM @Inserts
答案 1 :(得分:1)
这可能不是您问题的答案......但我想让您知道有更好的方法将相关值(表格格式)传递给存储过程... XML ...您可以构建应用程序中的XML字符串(与常规字符串一样)并将其作为参数传递给存储过程...然后,您可以使用以下语法将其转换为表格。希望这会有所帮助......通过这种方式,您可以将整个表作为参数传递给存储过程......
--Parameters
@param1 int,
@Budgets xml,
@Param2 int
-- @Budgets = '<Values><Row><Val1>127</Val1><Val2>162</Val2></Row> <Row><Val1>204</Val1><Val2>170</Val2></Row></Values>'
SELECT @param1 as Param1,
x.query('Val1').value('.','int') as val1,
@param3 as Param3,
x.query('Val2').value('.','int') as val1,
into #NewTable
FROM @Budgets.nodes('/Values/Row') x1(x)
答案 2 :(得分:1)
您需要一种在TSQL中拆分和处理字符串的方法,有很多方法可以做到这一点。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_ListToTableRows]
(
@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 return empty rows, and row numbers
----------------
SELECT
ROW_NUMBER() OVER(ORDER BY number) AS RowNumber
,LTRIM(RTRIM(SUBSTRING(ListValue, number+1, CHARINDEX(@SplitOn, ListValue, number+1)-number - 1))) AS ListValue
FROM (
SELECT @SplitOn + @List + @SplitOn AS ListValue
) AS InnerQuery
INNER JOIN Numbers n ON n.Number < LEN(InnerQuery.ListValue)
WHERE SUBSTRING(ListValue, number, 1) = @SplitOn
);
GO
您现在可以轻松地将CSV字符串拆分为表格并加入其中。要完成您的任务,请设置一个测试表以插入:
create table YourTable (col1 int, col2 int)
然后创建你的程序:
CREATE PROCEDURE StoredProcedureName
(
@Params1 int
,@Array1 varchar(8000)
,@Params2 int
,@Array2 varchar(8000)
)
AS
INSERT INTO YourTable
(col1, col2)
SELECT
a1.ListValue, a2.ListValue
FROM dbo.FN_ListToTableRows(',',@Array1) a1
INNER JOIN dbo.FN_ListToTableRows(',',@Array2) a2 ON a1.RowNumber=a2.RowNumber
GO
测试出来:
exec StoredProcedureName 17,'127,204,110,198',7,'162,170,163,170'
select * from YourTable
输出:
(4 row(s) affected)
col1 col2
----------- -----------
127 162
204 170
110 163
198 170
(4 row(s) affected)