Ault, a question quality control expert for the Oracle DBA Exam, provides direct insight into the testing process and guidelines for how to prepare for the exam. The book includes sections on proven test-taking strategies, time-saving study tips, and shortcuts.Answer c is incorrect because there are no entity constraints. Answer d is incorrect because user- defined constraints are used for business rules, not for data validity. Question 6 Which component of an entity relationship diagram is a namedanbsp;...
|Author||:||Michael R. Ault|
|Publisher||:||Coriolis Group - 1998|