Category: Database

PL/SQL Data Types

Data types define the kind of data that can be stored and manipulated in a PL/SQL program. Oracle PL/SQL provides a wide range of data types, categorized into scalar, composite,…

Introduction to PL/SQL

PL/SQL (Procedural Language/Structured Query Language) is a powerful procedural extension to SQL developed by Oracle Corporation. It is used to write complex database applications, automate tasks, and enhance the capabilities…

Oracle Cheat Sheet

Oracle Database is a comprehensive and robust relational database management system (RDBMS) widely used for enterprise-level applications. This cheat sheet presents essential commands and queries to interact efficiently with Oracle…

PostgreSQL Cheat Sheet

PostgreSQL is a powerful open-source relational database management system (RDBMS) known for its extensibility and advanced features. This cheat sheet presents key commands and queries to interact effectively with PostgreSQL…

MySQL Cheat Sheet

MySQL is a popular relational database management system (RDBMS) known for its performance and flexibility. This cheat sheet provides essential commands and queries for interacting with MySQL databases efficiently. Connecting…