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Database Programming and Procedural Extensions Focus: Cursors, Error Trapping, and Modular Code Development 1. Introduction

For business logic violations (e.g., attempting to withdraw more money than a bank balance allows), developers must define and RAISE custom exceptions to maintain data integrity. 4. Modularization: Procedures and Functions Download File PL-SQL excersises 2.docx

While implicit cursors handle single-row queries, "Exercise 2" level programming typically focuses on . These are necessary when a query returns multiple rows, requiring a pointer to work through the result set one row at a time. Download File PL-SQL excersises 2.docx