What are the differences between Primary Key and Unique Key ?
What are the differences between Primary Key and Unique Key ?
What are the differences between Primary Key and Unique Key ?
More Questions
37 . What are the differences between Primary Key and Unique Key?
38 . Explain the purpose of %TYPE and %ROWTYPE data types with the example?
39 . Explain the difference between Triggers and Constraints?
40 . Exception handling in PL/SQL
41 . What is the difference between COUNT (*), COUNT (expression), COUNT (distinct expression)?
42 . Difference between the “VERIFY” and “FEEDBACK” command?
43 . List out the difference between Commit, Rollback, and Savepoint?
44 . What is the difference between SUBSTR and INSTR?
45 . Point out the difference between USER TABLES and DATA DICTIONARY?
46 . Major difference between Truncate and Delete?
47 . Point the difference between TRANSLATE and REPLACE?