Performance Analysis of PL/SQL Query Optimization Techniques

Optimization in PL/SQL Programming is the preeminent aspect for database related applications built using PL/SQL code. PL/SQL statement/Query can be written in different ways for fetching the same output, but the most suitable technique should be considered when performance is a crucial factor, since processing time of the query may have significant variance, starting from a fraction of a second ending to hours, depending upon the method preferred. The main aim of query optimization is to find a solution that processes a specific query in minimum optimum time duration. This paper articulates different ways to optimize the performance of SQL queries and PL/SQL scripts by reducing the time complexity and number of context switches between SQL Engine and PL/SQL Engine.