Programming Essentials Python - CRUD Operations - Creating Database Table

Creating Database Table

Description

This article provides a step-by-step guide on creating a database table for CRUD operations. It includes explanations of key concepts, hands-on tasks, and a conclusion encouraging further practice and engagement with the community.

Explanation for the video

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Key Concepts Explanation

Database Table Creation

Creating a database table involves defining the table structure with columns and data types. Here is an example of creating a ‘users’ table:

CREATE TABLE users (
    user_id SERIAL PRIMARY KEY,
    user_first_name VARCHAR(30) NOT NULL,
    user_last_name VARCHAR(30) NOT NULL,
    user_email_id VARCHAR(50) NOT NULL,
    user_email_validated BOOLEAN DEFAULT FALSE,
    user_password VARCHAR(200),
    user_role VARCHAR(1) NOT NULL DEFAULT 'U',
    is_active BOOLEAN DEFAULT FALSE,
    create_ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    last_updated_ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP
)

Validating Table Creation

After creating the table, it is essential to validate its existence in the database schema by querying the information schema or using SQL Workbench tools.

Hands-On Tasks

  1. Create a new database table named ‘users’ with the specified columns.
  2. Validate the creation of the ‘users’ table in the database schema.
  3. Check the columns created in the ‘users’ table.
  4. Retrieve all records from the ‘users’ table to ensure successful creation.

Conclusion

In this article, we covered the process of creating a database table for CRUD operations. It is essential to have a clear understanding of database structure and SQL commands for application development. Practice creating tables and exploring database objects to enhance your skills. Join the community for further learning and collaboration.

Watch the video tutorial here