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Convert function help

Posted on 2013-12-31
9
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Last Modified: 2014-01-01
Experts,

Here is my code

declare @ItemIDList varchar(8000)

set @ItemIDList = '274686,275521,275522'

select * From MyDb..MyTable where ItemID in (convert(int,@ItemIDList ))

Getting the following error.
Conversion failed when converting the varchar value '274686,275521,275522' to data type int.

Could you please help me correct if I am missing something.

Thanks in Advance.
0
Comment
Question by:Tpaul_10
  • 4
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9 Comments
 
LVL 46

Expert Comment

by:Kent Olsen
ID: 39749031
Hi Paul,

'274686,275521,275522' is not an integer.  What are you trying to do?


Kent
0
 

Author Comment

by:Tpaul_10
ID: 39749037
Basically I have a list of ItemIDs with comma delimited and based on the ItemIDs I need to get some information for the ItemIDs from my database table and display some information.

Hope this clarifies and please let me know if you need any further information.

Thanks
0
 

Accepted Solution

by:
Tpaul_10 earned 1000 total points
ID: 39749175
I have found a different way

create table #TmpItem (TmpItemID int)

set @startIndex = 1
   set @charIndex = charindex(',', @ItemIDList, @startIndex)
   if @charIndex = 0 and len(@ItemIDList) > 0
      set @charIndex = len(@ItemIDList) + 1
   while(@charIndex <> 0)
      begin
         insert into #TmpItem (TmpItemID)
         values (substring(@ItemIDList, @startIndex, @charIndex - @startIndex))

         set @startIndex = @charIndex + 1
         set @charIndex = charindex(',', @ItemIDList, @startIndex)
         if @charIndex = 0 and @startIndex < (len(@ItemIDList) + 1)
            set @charIndex = len(@ItemIDList) + 1
      end

select * From MyDb..MyTable where ItemID in (select TmpItemID from #TmpItem)

Thanks
0
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Author Comment

by:Tpaul_10
ID: 39749191
I've requested that this question be closed as follows:

Accepted answer: 0 points for Tpaul_10's comment #a39749175

for the following reason:

A
0
 
LVL 16

Expert Comment

by:Surendra Nath
ID: 39749189
In order to get this done you need to follow the below steps

Step 1: Create the below split function in your database

CREATE FUNCTION dbo.Split
(
 @RowData nvarchar(2000),
 @SplitOn nvarchar(5)
)
RETURNS @RtnValue table
(
 Id int identity(1,1),
 Data nvarchar(100)
)
AS
BEGIN
 Declare @Cnt int
 Set @Cnt = 1
 DECLARE @index INT
 SET @index = Charindex(@SplitOn,@RowData)
 While (@index>0)
 Begin
 Insert Into @RtnValue (data)
  Select
 Data = ltrim(rtrim(Substring(@RowData,1,@index-1)))
 
 Set @RowData = Substring(@RowData,@index+1,len(@RowData))
 Set @Cnt = @Cnt + 1
 SET @index = Charindex(@SplitOn,@RowData)
 End
 
 Insert Into @RtnValue (data)
 Select Data = ltrim(rtrim(@RowData))
 
 Return
END

Open in new window


Step 2: re-write your query as below

select * From MyDb..MyTable where ItemID in ( SELECT CAST(DATA as BIGINT) FROM dbo.split(@ItemIDList) )

Open in new window

0
 
LVL 16

Expert Comment

by:Surendra Nath
ID: 39749192
There is no proper reason why this guy wants to close this question, although now we provided him a better solution.

Can you please elaborate rather than simply typing A
0
 

Author Comment

by:Tpaul_10
ID: 39749196
As I have specified I found a way to get through this issue and I have posted my code as well and your comment came in after that.

I have tested my code and is working as I am expected and that was the reason I wanted to close it.

Thanks and sorry if there is any confusion
0
 
LVL 16

Expert Comment

by:Surendra Nath
ID: 39749203
Thats Ok, no problem O.
0

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