Conversion failed when converting the nvarchar value '/' to data type int.

Question

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I have SQL query as following :

SQL

SELECT TOP (99.9999999) PERCENT CAST(CAST(LEFT(SpecialCode, CHARINDEX('/', SpecialCode) - 1) AS NVARCHAR) AS INT) AS Expr1
	,CAST(CAST(RIGHT(SpecialCode, CHARINDEX('/', SpecialCode) - 6) AS NVARCHAR) AS INT) AS Expr2
	,MemberCode	,SpecialCode	,StartingDate	,JoinDate
	,EndDate	,BirthDate	,NAME	,FirstName
	,MiddleName	,LastName	,Nationality	,Nationality2
	,Education	,Address	,City	,Country	,PostalCode
	,Homephone1	,Homephone2	,Workaddress	,WorkPhone1
	,Ext1	,WorkPhone2	,Ext2	,Mobile1	,Mobile2
	,FaxNumber	,Email	,EmergencyTel	,NoOfYearsTennis
	,ClubName	,NationalRank	,Year	,class	,NoOfYearsTournament
	,Note	,MSRelation	,RelatedMemberCode	,MScategory
	,Member	,ParentCard1	,ParentCard2	,ExpDate	,position
	,worktype	,NonActive	,MSKind	,MSType	,CardNumber
	,CardReceived	,Discount	,Religious	,Gender	,Organization
	,RelatedMemberCodeOld	,CreateUserId	,CreateDateAndTime	,UserId
	,DateAndTime	,HasNotEmail	,VillaOwner	,Homephone3	,Mobile3
	,Email2	,Email3	,BirthPlace	,NationalNo	,EndDateNationalNo
	,MiritialStatusID	,WifeNo	,GeneralAssembly
FROM dbo.Members
WHERE (Member = 1)
	AND (SpecialCode IS NOT NULL)
ORDER BY expr1
	,EXPR2

Field SpecialCode found in Members Table and have values like that

006403/1 when i run query above it give me error

Msg 245, Level 16, State 1, Line 1
Conversion failed when converting the nvarchar value '/' to data type int.

why and how to solve this error .

What I have tried:

Conversion failed when converting the nvarchar value '/' to data type int.

Posted 4-Jun-18 16:00pm

ahmed_sa

Updated 4-Jun-18 18:25pm

Bryian Tan

v2

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Bryian Tan · Answer 1 · 2018-06-04T18:27:00

I'm guessing, data issue? Possible one of the SpecialCode value not in ######/# format?

Here how I replicate the error.

SQL

DECLARE @SpecialCode VARCHAR(50)
SET @SpecialCode = '012345/'
SELECT CAST(CAST(RIGHT(@SpecialCode, CHARINDEX('/', @SpecialCode) - 6) AS NVARCHAR) AS INT) 

SELECT CAST(CAST(LEFT(@SpecialCode, CHARINDEX('/', @SpecialCode) - 1) AS NVARCHAR) AS INT)

Result:
Msg 245, Level 16, State 1, Line 3
Conversion failed when converting the nvarchar value '/' to data type int.

Not clear what your objective are, but if that the case, the quick work around is to replace the / with empty string

SQL

DECLARE @SpecialCode VARCHAR(50)
SET @SpecialCode = '012345/'
SELECT  CAST(CAST(LEFT(@SpecialCode, CHARINDEX('/', @SpecialCode) - 1) AS NVARCHAR) AS INT),
CAST(
	REPLACE(CAST(RIGHT(@SpecialCode, CHARINDEX('/', @SpecialCode) - 6) AS NVARCHAR),'/','') AS INT)

Result: 12345 0