Need help in dynamic query with IN Clause

Question

I have 1 Table which is named as ProductMaster.Another Table which is VendorMaster. Now i want to find all the products from specified Vendormaster.

So i want to use

Answer 1

If your verdor name is

 declare @in varchar(100)
 select @in = 'HP,LENOVO'

You can use dynamic SQL

 declare @sql nvarchar(1000)
 select @sql = 'select * from yourtable where yourfield in ('+@in +')'
 exec sp_executesql @sql

or you can make your split function return a table

 select * 
 from yourtable
     inner join dbo.f_Split(@in) f 
     on yourtable.yourfield =f.entry

The second is much preferable due to its protection from SQL injection type attacks