프로시저 동적 쿼리파라미터 캐싱

------ 1. 권장- 동적쿼리파라메터캐싱 ---------

create proc upcl_text_tmp (

        @user_id varchar(25)

) as

 

declare @sql nvarchar(max), @params nvarchar(500);

 

set @params = N'@user_id varchar(25)';

set @sql  = 'select user_id from hunetc.dbo.thu_user_login where user_id = @user_id'

 

execute sp_executesql @sql, @params, @user_id = @user_id;

 

 

 

------ 2. 동적쿼리 파라메터 캐싱 안됨---------

create proc upcl_text (

        @user_id varchar(25)

) as

 

declare @sql nvarchar(max)

 

set @sql  = 'select user_id from hunetc.dbo.thu_user_login where user_id = ''' + @user_id + ''''

 

execute sp_executesql @sql