A.It is stored in external files.

B.It cannot have any constraints.

C.It is created for the duration of a user session or transaction.

D.It is permanently stored in the database.

A.Constraints are automatically dropped when rows are deleted.

B.Constraints can only be added when creating a table.

C.Constraints cannot reference other tables.

D.Constraints can be added or modified using the ALTER TABLE statement.

A.A join that does not require a WHERE clause

B.A join used for Cartesian products

C.A join of a table with itself

D.A join between tables with identical structures