sql server - If I have two tables I want to use join operation and if I have left join then what is the use of right join? -


if have 2 tables want use join operation , if have left join use of right join?

i have 2 tables , b

i use 

select * left outer join b on a.id=b.id

if want b table outer

select * b left outer join on b.id=a.id

then use of right outer join?

having both joins helps 1 write intuitive scripts easier understand. similar why programming languages have less comparison operator greater comparison operator. in theory, (if not all) code rewritten use 1 of them, code more difficult understand , maintain.


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