Answer / ramesh

The Concept of joining a table with it self in called "self
join"

Answer / shekar

the concept of joining a table with it self in called "self
join"

Answer / rrrrrrrrrr

The Concept of joining a table with it self in called "self
join"

Answer / gagan

Self join correlated rows of a table with other rows in the
same table.

Eg:
select a.name+'issue the book= '+b.book form lib a,lib b
where rollno between 1 and 10

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