5. Find Tables with Specific Columns
   Understanding information_schema:information_schema is a built-in database in MySQL that provides metadata about the database system itself
6. Understanding PostgreSQL Queries for Table Names
   PostgreSQL is a powerful open-source relational database management system (RDBMS) used for storing and managing data.It uses SQL (Structured Query Language) for interacting with the database
7. Understanding SQLite Schema without information_schema
   Here's a breakdown of the terminology:SQLite: The name of the lightweight relational database management system.Schema: The overall structure of the database
8. How to Check if a Constraint Exists in SQL Server
   Constraints in SQL ServerConstraints are database objects that enforce data integrity rules within a table.Examples include primary keys (unique identifier for a row), foreign keys (references another table), unique constraints (prevent duplicate values in a column), and check constraints (custom validation logic)
9. Unlocking Database Insights: Listing Tables in PostgreSQL's information_schema
   Concepts:SQL (Structured Query Language): A standardized language for interacting with relational databases like PostgreSQL