Subquery v/s inner join in sql server

Question

I have following queries

First one using inner join

SELECT item_ID,item_Code,item_Name 
FROM [Pharmacy].[tblitemHdr] I 
    INNER JOIN  EMR.tblFavour         


        

Answer 1

It all depends on data and relational mapping between tables. If RDBMS rules are not followed then even the first query will be slow on execution and data fetching.