sql server - I can not declare bigint variable -


in sql server can't declare variable bigint data type. mobile column has bigint data type. it's give me error varchar not convert bigint when use procedure.

when write mobile=cast(@mobile varchar) works fine

alter procedure [dbo].[get_suggestion]         @firstname varchar(255),         @middlename varchar(255),         @lastname varchar(255),         @mobile bigint  begin  select     *      dbo.contacts           (        mobile =@mobile       ) end

table structure 

drop table [dbo].[contacts] go create table [dbo].[contacts] ( [contactid] int not null identity(1,1) , [name] varchar(100) not null , [familyheadid] int null , [addressold] ntext null , [mobile] bigint null ,

calling

get_suggestion 'john','doe','patel',999999999

it's because mobile not integer varchar in table , hence sql server tries convert mobile column bigint when compare @mobile in where mobile =@mobile

mobile=cast(@mobile varchar)

the above works because there no implicit conversion of mobile column bigint.

edit

based on updated question, should work fine. check sql fiddle


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