15. Consider the following transaction graphe crash A Which transaction(s) must be redone? D A C B 16. When is a referen
Posted: Mon Jun 06, 2022 4:38 pm
15. Consider the following transaction graphe crash A Which transaction(s) must be redone? D A C B 16. When is a referential integrity constraint violated? O Occurs when a delete on a foreign key table is performed without a matching value in the primary key table. Occurs when an insert or update on a table with a foreign key is performed without a matching value in the foreign key's primary table. Occurs when an insert or update on a primary key table is performed without a matching value in the foreign key table. Occurs when a delete on a primary key table is performed without a matching value in the foreign key table. 00 DUDE ะก B