ExcelR Assignment Solution for BA and Data Analytics. Assignment 7 in SQL, DDL Commands : Create, Alter, Rename
🎯 Title (SEO Optimized)
DDL Commands in SQL | CREATE, ALTER, RENAME Explained with Example | SQL Tutorial for Beginners
📝 Description (Detailed & SEO-Friendly)
In this SQL tutorial, you’ll learn DDL Commands (Data Definition Language) — CREATE, ALTER, and RENAME — with practical examples.
We’ll create a table named facility, add columns, and then modify the table using the ALTER command to add PRIMARY KEY, AUTO_INCREMENT, and a new column city (NOT NULL).
This video is perfect for beginners preparing for SQL interviews, Data Analyst, MIS Executive, and Database Developer roles.
By the end of the video, you’ll clearly understand how to design and modify database structures using DDL commands in SQL.
📘 Topics Covered:
What are DDL Commands in SQL?
How to use CREATE TABLE command
Adding PRIMARY KEY and AUTO_INCREMENT
Using ALTER TABLE to add new columns
Adding NOT NULL constraints
Example with table: facility (Facility_ID, Name, State, Country, City)
RENAME table command example
📚 Example Query Used:
CREATE TABLE facility (
Facility_ID INT,
Name VARCHAR(50),
State VARCHAR(50),
Country VARCHAR(50)
);
ALTER TABLE facility
MODIFY Facility_ID INT PRIMARY KEY AUTO_INCREMENT;
ALTER TABLE facility
ADD city VARCHAR(50) NOT NULL AFTER Name;
💡 Who Should Watch:
SQL & Database Beginners
Students learning Database Concepts
Data Analyst / MIS Aspirants
Anyone preparing for SQL Interviews
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