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

Sub-query Vs Join

Table one 20 rows,2 cols

Table two 20 rows,2 cols

sub-query 20*20

join 20*2

logical, rectify

Detailed

The scan count indicates multiplication effect as the system will have to go through again and again to fetch data, for your performance measure, just look at the time