How to add prefix N to the variable in stored procedure in SQL server 2016

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SQL-Server-2016

Dear All,

I have a stored procedure where I have a variable that will be English or Arabic string, for Arabic string I need to add prefix N to the variable.

declare @ModuleName nvarchar(max)

set @ModuleName = 'أساسيات الكمبيوتر'

SELECT * FROM Module WHERE  NameEN LIKE N'%' + @ModuleName + '%' OR NameAR LIKE '%' + @ModuleName  + '%'

What I have tried:

Create function fnGetModuleIDByModuleName
(@ModuleName nvarchar(max))
returns int
begin

declare @ModuleID int

SELECT @ModuleID = ID FROM Module where NameEN like '%' + @ModuleName + '%' or NameAR like '%' + @ModuleName + '%'

return @ModuleID

end

Calling function

declare @m nvarchar(max) 
set @m = 'أساسيات الكمبيوتر'
select dbo.fnGetModuleIDByModuleName(@m)

if I add prefix N to the string then it will work

declare @m nvarchar(max) 
set @m = N'أساسيات الكمبيوتر'
select dbo.fnGetModuleIDByModuleName(@m)

I can't hardcode any variable, the variable value is coming from the parameter of the stored procedure. So, my question is, how can I add prefix N to the @variable?

Can anyone please help me.

Thanks in advance

Posted 23-Oct-19 0:14am

abdul subhan mohammed

Updated 23-Oct-19 3:01am

v2

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Comments

Richard Deeming 23-Oct-19 11:06am

Just add the prefix to the variable. What's the problem?

declare @ModuleName nvarchar(max)

set @ModuleName = N'أساسيات الكمبيوتر'

SELECT * FROM Module WHERE  NameEN LIKE N'%' + @ModuleName + N'%' OR NameAR LIKE N'%' + @ModuleName  + N'%'

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RickZeeland · Answer 1 · 2019-10-23T00:30:00

Solution 1

Try to move the % to where the parameter is added.
See this question: How to search value from SQL data base using %[^]

scCommand.Parameters.Add("@ModuleName", SqlDbType.NVarChar, 50).Value = "ساسيات الكمبيوتر";

Posted 23-Oct-19 0:30am

RickZeeland

Updated 23-Oct-19 2:42am

v4

Comments

abdul subhan mohammed 23-Oct-19 8:14am

the problem is not the '%' but the variable contains Arabic text for which I have to add prefix N to the variable.