执行存储过程时，SQL Server中出现截断错误

Question

I am getting the below error while executing a stored procedure

 USE [Smart2uat]
GO
/****** Object:  StoredProcedure [dbo].[SPJOB_ALLLOC]    Script Date: 2/11/2016 12:37:40 PM ******/
SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER OFF
GO




ALTER  PROCEDURE [dbo].[SPJOB_ALLLOC] AS 
declare @cardno as varchar(8)
declare @iodate as datetime
declare @iotime as varchar(8)
declare @holdername as varchar(100)

declare @IO_MSKID as varchar(7)
declare @IO_LOCATION_CODE as varchar(3)
declare @IO_COMPANY_CODE as varchar(3)
declare @IO_ACTIVITY_CODE as varchar(6)
declare @IO_FIRST_NAME as varchar(20)
declare @IO_THIRD_NAME as varchar(20)
declare @IO_EMPLOYEE_CODE as varchar(3)

declare @rows as integer
declare curatt1 cursor for
    select iodate,cardno,iotime,holdername from iodatatmp where isnull(cardno,'')<>'' and isnull(cardno,'') not like 'XXXX%' order by iotime
    open curatt1
    fetch next from curatt1 into @iodate,@cardno,@iotime,@holdername
    WHILE @@FETCH_STATUS = 0
    BEGIN
        if not exists(select CardNo  from iodata where iodate= @iodate and cardno= @cardno)
        begin
            select @IO_MSKID = ''
            select @IO_MSKID=MSKID,@IO_LOCATION_CODE=LOCATION_CODE,@IO_COMPANY_CODE=COMPANY_CODE,@IO_ACTIVITY_CODE=ACTIVITY_CODE,@IO_FIRST_NAME=FIRST_NAME,@IO_THIRD_NAME=THIRD_NAME,@IO_EMPLOYEE_CODE=EMPLOYEE_CODE from Employee_Mast where card_number = @cardno
            IF @IO_MSKID <> ''
                insert into iodata(cardno,iodate,iotime,holdername,IO_MSKID,IO_LOCATION_CODE,IO_COMPANY_CODE,IO_ACTIVITY_CODE,IO_FIRST_NAME,IO_THIRD_NAME,IO_EMPLOYEE_CODE) 
                values(@cardno,@iodate,@iotime,@holdername,@IO_MSKID,@IO_LOCATION_CODE,@IO_COMPANY_CODE,@IO_ACTIVITY_CODE,@IO_FIRST_NAME,@IO_THIRD_NAME,@IO_EMPLOYEE_CODE) 
        end 
    fetch next from curatt1 into @iodate,@cardno,@iotime,@holdername
    END
close curatt1
deallocate curatt1

delete from iodata  where cardno like 'XXXX%'

error is

Msg 8152, Level 16, State 14, Procedure SPJOB_ALLLOC, Line 31
String or binary data would be truncated.
The statement has been terminated.

(0 row(s) affected)

Can you please help me..? I am attaching the table design of iodatatmp on which the cursor is fetching and the destination table - Iodata

I have checked the length of the variable...and seems everything fine....Kindly help me..Thanks in advance

Answer 1

The error you are getting is caused by the fact that the size of some of the varchar type columns in IODataTmp are larger than the equivalent column in IOData .

For instance IODataTmp.Holdername is declared as varchar(32) and yet IOData.Holdername is declared as varchar(20) and so if you have a value in IODataTmp.Holdername that is longer than 20 characters it will fail when it tries to insert into IOData.Holdername . Another issue you have is that variables you have declared in the stored procedure to hold the values are a different size again, @holdername is declared as varchar(100) .

The solution is to ensure that all the column and variable sizes for a piece of data are the same.