error in 'order by' in sql server

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I have select query which i need to order by ascending order. Column has varchar datatype so i need to convert it to int. My query is working fine but there is some situation when the user needs to enter such values '121-1' so it gives an error on select query 'Conversion failed when converting the varchar value '121-2' to data type int.' So is there any solution to ignore this error even on entering such values('121-1'). ? Following is my query

SQL

select ([Casetype] +'/'+ convert(varchar(50),CaseNo) +'/'+ convert(varchar(50),YEAR(GETDATE())) )as CaseNo ,
    CaseNo_ID,
    convert(varchar(20),[fileDate],103) as DateOfFilling,
    DisrtictFrom,
    tbl_RecordRequisition.CompName,
    tbl_RecordRequisition.RespName,
    CaseStage,
    convert(varchar(20),NextDate,103) as NextDate,
    tbl_RecordRequisition.Remarks
from tbl_RecordRequisition
order by left(CaseNo_ID,2) asc ,
    right(CaseNo_ID,4) asc,
    CAST((replace(replace(CaseNo_ID,left(CaseNo_ID,3),''),right(CaseNo_ID,5),'')) as int) asc

please help

Posted 26-Aug-15 21:21pm

Member 11589183

Updated 26-Aug-15 21:39pm

Maciej Los

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Maciej Los 27-Aug-15 3:36am

Please provide input data and expected output. It might help us to understand your issue.

Maciej Los 27-Aug-15 3:41am

Crosspost: http://stackoverflow.com/questions/32242994/error-in-order-by-in-sql-server

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OriginalGriff · Answer 1 · 2015-08-26T21:34:00

"So is there any solution to ignore this error even on entering such values('121-1')."
No.

That is expected behaviour - if you want to use integers, then use integer columns, or in your case probably two columns to establish a range.
You could use SUBSTRING to break out each number independently, but storing them properly is a lot less work in the long run!

Maciej Los · Answer 2 · 2015-08-26T22:31:00

Solution 2

Two answers[^] to your question have been posted on SO. Use it!

Posted 26-Aug-15 22:31pm

Maciej Los

Member 11589183 · Answer 3 · 2015-08-27T23:48:00

Solution 3

Following query helped me

SQL

order by left(CaseNo_ID,2) asc ,right(CaseNo_ID,4) asc, (select CAST((tbl_RecordRequisition.CaseNo) as int)  where tbl_RecordRequisition.CaseNo not like '%-%' ) asc

Thanks all

Posted 27-Aug-15 23:48pm