1. Introduction to Exception Handling in PL/SQL
2. Types of Exceptions
o Predefined Exceptions
o User-Defined Exceptions
3. PL/SQL Exception Block Structure
o EXCEPTION Clause Syntax
o Exception
Handling Block (BEGIN...EXCEPTION...END)
4. Common Predefined Exceptions
o NO_DATA_FOUND
o TOO_MANY_ROWS
o ZERO_DIVIDE
o DUP_VAL_ON_INDEX
o INVALID_CURSOR
o VALUE_ERROR
5. User-Defined Exceptions
o Declaring User-Defined Exceptions
o Raising
User-Defined Exceptions (RAISE)
6.
The WHEN OTHERS Exception Handler
o Catching
All Exceptions with WHEN OTHERS
o Exception Propagation and Re-raising
7. Handling Multiple Exceptions
o WHEN Clause for Multiple
Exception Types
o Using
WHEN OTHERS for
Generic Handling
8. RAISE_APPLICATION_ERROR
o Custom Error Messages
o Error Number Ranges (ORA-20000 to ORA-20999)
9. Exception Handling in PL/SQL Functions and Procedures
10. Exception Handling in Loops
11. Nested Exception Handlers
12. Pragma EXCEPTION_INIT for Mapping Oracle Errors
13. Exception Handling in Triggers
14. PL/SQL Exception Handling with Cursors
15. Catching SQL Errors and Handling Exceptions
16. Log Error Information Using DBMS_OUTPUT
17. Logging Exceptions to a Table
18. Exception Handling for Performance Optimization
19. Exception Handling with Transactions (COMMIT, ROLLBACK)
20. SQLCODE and SQLERRM for Error Information
21. Re-raising Exceptions for Higher Layers
22. Exception Handling in Bulk Operations (BULK COLLECT, FORALL)
23. The INVALID_NUMBER and VALUE_ERROR Exceptions
24. Handling Constraint Violations (DUP_VAL_ON_INDEX, etc.)
25. Avoiding Mutating Table Errors in Triggers
26. Best Practices for Exception Handling
27. Performance Implications of Exception Handling
28. Using Exception Handlers for Application Logic Control
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