what is subqueary and what is temporary tables?

Answer Posted / praveen

A Subquery or Inner query or Nested query is a query within
another SQL query and embedded within the WHERE clause.

A subquery is used to return data that will be used in the
main query as a condition to further restrict the data to
be retrieved.
Temparory tables are used in creation of storing data for a
while and this table is used in another sql .
That means the result of temp table will be used in another
sql up on which the resultant data is to be displayed.

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