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All LessonsFree Lessons (5)

Getting Started

Overview of the Course Introduction to Relational Database Management Systems Data Modeling Conceptual vs. Actual Model of a Database Summary Quiz on the Basics of RDBMS

Manage MySQL Server

Get Started with the MySQL Server Communicate with the MySQL Server Summary Quiz Yourself on Installing and Communicating with MySQL server

Basic SQL Commands

Introduction to SQL Commands Create and Select a Database Create Tables Insert Data into a Table Restricting the Specific Rows Deleting Rows from Tables Update Rows on a Table Retrieve Data Using the like Operator Summary Quiz on SQL Queries Challenge: Create a Table Solution: Create a Table

Add Columns and Indexes

Add a New Column

Create an Index

Remove an Index

Quiz on Indexing

Challenge: Create Indexes

Solution: Create Indexes

Count and Sort Records

Create Table Products Insert Product Data Sort Results Limit the Number of Resulting Records Summary Quiz on Counting, Sorting, and Limiting Results Challenge: Limit Records Solution: Limit Records

Foreign Keys

Create the orders Table Insert Data into the orders Table Unique Order Number Insert the Wrong Customer Id Create the order_items Table Visualize Relationships and a Multicolumn Unique Index Summary Quiz on Foreign Keys Challenge: Apply Foreign Keys to Tables Solution: Apply Foreign Keys to Tables

Joins, Left Joins And Subqueries

Introduction to Joins Delete Unnecessary Data Insert Necessary Data Combine Data from Various Tables Joins with Aggregate Functions Left Joins Group-Based Aggregation Practice Some More Queries Summary Quiz on Joins and Subqueries Challenge: Use Joins to Combine Rows Solution: Use Joins to Combine Rows

Conclusion

Getting Started with SQL and Relational Databases/

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Remove an Index

Remove an Index

Learn how to remove an index.

We'll cover the following...

Parts of drop index query
Showing table structure

We can remove an index by using the drop index command, as in the following example:

drop index customers_identity_idx on customers;

Parts

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