SQL (Structured Query Language) Question: Download SQL PDF

What is ON DELETE CASCADE?

Tweet Share WhatsApp

Answer:

When ON DELETE CASCADE is specified Oracle maintains referential integrity by automatically removing dependent foreign key values if a referenced primary or unique key value is removed.

Download SQL PDF Read All 172 SQL Questions
Previous QuestionNext Question
What is SQL ROWID?What is difference between CHAR and VARCHAR2? What is the maximum SIZE allowed for each type?