Can I read Database Integrity Constraints Discussion on EtoBox?
Database Integrity Constraints Discussion by wirdina is a document available to read on EtoBox.
What is Database Integrity Constraints Discussion about?
The document discusses integrity constraints and foreign keys for several database schemas. For the first schema about employees, projects, and departments: inserting certain records would violate entity, referential, and domain constraints. Foreign keys enforce referential integrity. For the student enrollment schema: the foreign keys are SSN in ENROLL referencing STUDENT, and Course#, Quarter in BOOK_ADOPTION referencing ENROLL. For the sales trip schema: the foreign keys are SSN in TRIP referencing
- Author
- wirdina
- Language
- EN