How To Create Tables In public Schema In PostgreSQL || Best PostgreSQL Tutorial Shorts

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Learn how to create tables in the public schema in PostgreSQL and manage default schema behavior. #PostgreSQL #SQL

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Description
In PostgreSQL, the public schema is the default schema where objects like tables, views, and indexes are created if no schema is explicitly mentioned. Understanding how to create tables in the public schema is essential for efficient database management.

How to Create Tables in the Public Schema?
By default, all tables are created in the public schema unless another schema is specified.

🔹 Example: Creating a Table in the Public Schema

CREATE TABLE customers (
customer_id SERIAL PRIMARY KEY,
customer_name TEXT NOT NULL
);

This is equivalent to:

customer_id SERIAL PRIMARY KEY,
customer_name TEXT NOT NULL
);

Verifying the Schema of a Table
To check where a table is stored:

SELECT schemaname, tablename FROM pg_tables WHERE tablename = 'customers';

Explicitly Creating a Table in the Public Schema
Even if your default schema is set to something else, you can force table creation in the public schema:

order_id SERIAL PRIMARY KEY,
order_date DATE NOT NULL
);

Setting the Public Schema as Default
If your database has multiple schemas, but you want to use public by default:

SET search_path TO public;

Why Use the Public Schema?
✅ Default schema, no need for extra configuration
✅ Simplifies database object creation
✅ Can be used for shared resources in multi-user environments

However, for better security in multi-user databases, it's recommended to restrict public schema access using:

REVOKE CREATE ON SCHEMA public FROM PUBLIC;

Master PostgreSQL schema management and table creation with this video!

#PostgreSQL #SQL #Database #PublicSchema #CreateTable #PostgreSQLSchema #DatabaseManagement #PostgreSQLTutorial