Questões do Teste SQL Oracle

 

Which two statements are true regarding single row functions?

Which two statements are true regarding single row functions? (Choose two.)
A.
They a ccept only a single argument.

B.
They c an be nested only to two levels.

C.
Arguments can only be column values or constants.

D.
They a lways return a single result row for every row of a queried table.

E.
They c an return a data type value different from the one that is referenced.

http://www.aiotestking.com/oracle/which-where-clause-could-be-used-in-the-select-statement-to-get-the-required-output/

http://www.aiotestking.com/oracle/which-statement-is-true-regarding-the-above-query-if-one-of-the-values-generated-by-the-subquery-is-null-2/