What is the functions of on delete cascade?
Posted: Thu Jul 14, 2022 8:53 am
a) It is used to delete a tuple in a table
b) It is used to specify the precise attribute that needs to be deleted in a single relation.
c) It is used to preserve referential integrity in a relation
d) It is used to execute sub-queries in the from clause.
b) It is used to specify the precise attribute that needs to be deleted in a single relation.
c) It is used to preserve referential integrity in a relation
d) It is used to execute sub-queries in the from clause.