Passing a varchar full of comma delimited values t

2018-12-31 06:04发布

Duplicate of
Dynamic SQL Comma Delimited Value Query
Parameterized Queries with Like and In

I have a SQL Server Stored Procedure where I would like to pass a varchar full of comma delimited values to an IN function. For example:

DECLARE @Ids varchar(50);
SET @Ids = '1,2,3,5,4,6,7,98,234';

SELECT * 
FROM sometable 
WHERE tableid IN (@Ids);

This does not work of course. I get the error:

Conversion failed when converting the varchar value '1,2,3,5,4,6,7,98,234' to data type int.

How can I accomplish this (or something relatively similar) without resorting to building dynamic SQL?

24条回答
荒废的爱情
2楼-- · 2018-12-31 06:53

Best and simple approach.

DECLARE @AccumulateKeywordCopy NVARCHAR(2000),@IDDupCopy NVARCHAR(50);
SET @AccumulateKeywordCopy ='';
SET @IDDupCopy ='';
SET @IDDup = (SELECT CONVERT(VARCHAR(MAX), <columnName>) FROM <tableName> WHERE <clause>)

SET @AccumulateKeywordCopy = ','+@AccumulateKeyword+',';
SET @IDDupCopy = ','+@IDDup +',';
SET @IDDupCheck = CHARINDEX(@IDDupCopy,@AccumulateKeywordCopy)
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像晚风撩人
3楼-- · 2018-12-31 06:54

You can create a function that returns a table.

so your statement would be something like

select * from someable 
 join Splitfunction(@ids) as splits on sometable.id = splits.id

Here is a simular function.

CREATE FUNCTION [dbo].[FUNC_SplitOrderIDs]
(
    @OrderList varchar(500)
)
RETURNS 
@ParsedList table
(
    OrderID int
)
AS
BEGIN
    DECLARE @OrderID varchar(10), @Pos int

    SET @OrderList = LTRIM(RTRIM(@OrderList))+ ','
    SET @Pos = CHARINDEX(',', @OrderList, 1)

    IF REPLACE(@OrderList, ',', '') <> ''
    BEGIN
        WHILE @Pos > 0
        BEGIN
            SET @OrderID = LTRIM(RTRIM(LEFT(@OrderList, @Pos - 1)))
            IF @OrderID <> ''
            BEGIN
                INSERT INTO @ParsedList (OrderID) 
                VALUES (CAST(@OrderID AS int)) --Use Appropriate conversion
            END
            SET @OrderList = RIGHT(@OrderList, LEN(@OrderList) - @Pos)
            SET @Pos = CHARINDEX(',', @OrderList, 1)

        END
    END 
    RETURN
END
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时光乱了年华
4楼-- · 2018-12-31 06:54

Create a table function like below which parse comma separated varchar and returns a table that can be inner joined with other tables.

CREATE FUNCTION [dbo].[fn_SplitList]
(
  @inString     varchar(MAX)  = '',
  @inDelimiter  char(1)       = ',' -- Keep the delimiter to 100 chars or less.  Generally a delimiter will be 1-2 chars only.
)
RETURNS @tbl_Return  table
(
  Unit  varchar(1000) COLLATE Latin1_General_BIN
)
AS
BEGIN 
    INSERT INTO @tbl_Return
    SELECT DISTINCT
      LTRIM(RTRIM(piece.value('./text()[1]', 'varchar(1000)'))) COLLATE DATABASE_DEFAULT AS Unit
    FROM
    (
      --
      --  Replace any delimiters in the string with the "X" tag.
      --
      SELECT
        CAST(('<X>' + REPLACE(s0.prsString, s0.prsSplitDelimit, '</X><X>') + '</X>') AS xml).query('.') AS units
      FROM
      (
        --
        --  Convert the string and delimiter into XML.
        --
        SELECT
          (SELECT @inString FOR XML PATH('')) AS prsString,
          (SELECT @inDelimiter FOR XML PATH('')) AS prsSplitDelimit
      ) AS s0
    ) AS s1
    CROSS APPLY units.nodes('X') x(piece)
  RETURN
END

================================================= Now consume above created table function in your code,creation of function is one time activity in your database that can be used across databases as well on same server.

DECLARE @Ids varchar(50);
SET @Ids = '1,2,3,5,4,6,7,98,234';

SELECT
     *
FROM sometable AS st
INNER JOIN fn_SplitList(@ids, ',') AS sl
     ON sl.unit = st.tableid
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步步皆殇っ
5楼-- · 2018-12-31 06:54
Error 493: The column 'i' that was returned from the nodes() method cannot be 
   used directly. It can only be used with one of the four XML data type 
   methods, exist(), nodes(), query(), and value(), or in IS NULL and IS NOT 
   NULL checks.

The above errorr was fixed in SQL Server 2014 by using following snippet

Declare @Ids varchar(50)
Set @Ids = '1,2,3,5,4,6,7,98,234'

DECLARE @XML XML
SET @XML = CAST('<i>' + REPLACE(@Ids, ',', '</i><i>') + '</i>' AS XML)

SELECT SomeTable.* 
FROM
    SomeTable 
    cross apply @XML.nodes('i') x(i) 
        where SomeTable .Id = x.i.value('.', 'VARCHAR(MAX)')
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冷夜・残月
6楼-- · 2018-12-31 07:00

Thanks, for your function I Used IT........................ This is my EXAMPLE

**UPDATE [RD].[PurchaseOrderHeader]
SET     [DispatchCycleNumber] ='10'
 WHERE  OrderNumber in(select * FROM XA.fn_SplitOrderIDs(@InvoiceNumberList))**


CREATE FUNCTION [XA].[fn_SplitOrderIDs]
(
    @OrderList varchar(500)
)
RETURNS 
@ParsedList table
(
    OrderID int
)
AS
BEGIN
    DECLARE @OrderID varchar(10), @Pos int

    SET @OrderList = LTRIM(RTRIM(@OrderList))+ ','
    SET @Pos = CHARINDEX(',', @OrderList, 1)

    IF REPLACE(@OrderList, ',', '') <> ''
    BEGIN
        WHILE @Pos > 0
        BEGIN
                SET @OrderID = LTRIM(RTRIM(LEFT(@OrderList, @Pos - 1)))
                IF @OrderID <> ''
                BEGIN
                        INSERT INTO @ParsedList (OrderID) 
                        VALUES (CAST(@OrderID AS int)) --Use Appropriate conversion
                END
                SET @OrderList = RIGHT(@OrderList, LEN(@OrderList) - @Pos)
                SET @Pos = CHARINDEX(',', @OrderList, 1)

        END
    END 
    RETURN
END
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不流泪的眼
7楼-- · 2018-12-31 07:01

The simplest way i found was to use FIND_IN_SET

FIND_IN_SET(column_name, values)

values=(1,2,3)

SELECT name WHERE FIND_IN_SET(id, values)

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