How to search nvarchar text in stored procedure

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I am searching nvarchar text in my stored procedure. nvarchar text to be searched is passed as parameter.

dummy table

DECLARE @tb TABLE (Id INT, Name NVARCHAR(100));

insert into @tb VALUES (1,'Aman');
insert into @tb VALUES (2,N'سانديب');
insert into @tb VALUES (3,'Anuj');
insert into @tb VALUES (4,N'فيكاس');
insert into @tb VALUES (5,N'اليت');
insert into @tb VALUES (6,'Sunil');
insert into @tb VALUES (7,'Ajay');
insert into @tb VALUES (8,N'فيشال');
insert into @tb VALUES (9,'Tarun');

--select * from @tb

DECLARE @str NVARCHAR(50)=N'سانديب'
SELECT * FROM @tb WHERE Name LIKE '%'+ @str +'%'

--It is working fine

I know we need to prefix N' to search nvarchar text. But how can i add this in parameter to stored procedure

What I have tried:

DECLARE @str1 NVARCHAR(50)='سانديب'
SELECT * FROM @tb WHERE Name LIKE '%'+ @str1 +'%'

it is not working

DECLARE @str2 NVARCHAR(50)='سانديب';
SELECT * FROM @tb WHERE Name LIKE '%' + N'' + @str2 + '%'

it is still not working

Posted 17-Jan-18 18:38pm

xpertzgurtej

Updated 19-Jan-18 5:54am

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RDBurmon · Answer 1 · 2018-01-17T22:00:00

Solution 1

Try this

SQL

CREATE PROCEDURE SEARCHTEXT

      -- Add the parameters for the stored procedure here

      @TEXT NVARCHAR(50)

AS

BEGIN

DECLARE @str1 NVARCHAR(50)
SET @str1=N'' + @TEXT 
SELECT * FROM @tb WHERE Name LIKE '%'+ @str1 +'%'

Posted 17-Jan-18 22:00pm

RDBurmon

Updated 18-Jan-18 0:32am

v2

Comments

xpertzgurtej 18-Jan-18 4:08am

& cant be used for concatenation. Showing error :The data types nvarchar and nvarchar are incompatible in the '&' operator.

RDBurmon 18-Jan-18 6:32am

ohh yeah , that should be +

RDBurmon 18-Jan-18 6:33am

updated my solutions. if worked please accept and vote

xpertzgurtej 18-Jan-18 7:24am

No..it is not working as per ur solution:
DECLARE @tb TABLE (Id INT, Name NVARCHAR(100));

insert into @tb VALUES (1,'Aman');
insert into @tb VALUES (2,N'سانديب');
insert into @tb VALUES (3,'Anuj');
insert into @tb VALUES (4,N'فيكاس');
insert into @tb VALUES (5,N'اليت');
insert into @tb VALUES (6,'Sunil');
insert into @tb VALUES (7,'Ajay');
insert into @tb VALUES (8,N'فيشال');
insert into @tb VALUES (9,'Tarun');

DECLARE @str NVARCHAR(50)='سانديب'

DECLARE @str1 NVARCHAR(50)
SET @str1=N'' + @str
SELECT * FROM @tb WHERE Name LIKE '%'+ @str1 +'%'

no results

Richard Deeming · Answer 2 · 2018-01-19T05:54:00

Solution 2

Try:

SQL

DECLARE @str1 NVARCHAR(50) = N'سانديب' -- Add the missing "N" prefix here
SELECT * FROM @tb WHERE Name LIKE N'%'+ @str1 + N'%' -- And to the two "%" strings here

Posted 19-Jan-18 5:54am

Richard Deeming