SQL之join, inner join, left join, full join

Sometimes a picture can be worth a thousand lines of text

Explanation : Different databases have different results when join == inner join or join == full join.











Quote:

http://stackoverflow.com/questions/38549/what-is-the-difference-between-inner-join-and-outer-join


http://www.datamartist.com/sql-inner-join-left -outer-join-full-outer-join-examples-with-syntax-for-sql-








server-