wht is d/f b/w inner join and outer join ? d/f group by and order by having by ?
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Answer Posted / lu
u have 2 table (a,b), u join together,u get colunms
matching it's called inner....
u have 2 tables (a,b), u select a colunm(b) doesn't exist
in a...it's called outer...
goup by using for a row...
having by using for column
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