MySQL Tutorial

MySQL is an open-source relational database management system (RDBMS) that uses SQL to store and manage structured data. It is widely used in web applications because of its reliability, speed and ease of use.

• Developed by MySQL-AB and currently owned by Oracle Corporation.
• Allows users to create, modify and manage databases efficiently.
• Supports operations like data insertion, querying, updating and deletion.
• Suitable for both small projects and large enterprise applications.

Before learning MySQL, it is recommended to understand the basics of SQL, which is the standard language used for database operations.

Basics

MySQL basics include understanding RDBMS, data types, MySQL installation, MySQL Workbench setup and connecting to the MySQL server.

• Introduction
• RDBMS
• Data Types
• Install MySQL Database Server using Windows
• MySQL Workbench on Windows
• Connect to MySQL Server using command options

User Management

MySQL user management is the process of creating, modifying, deleting users and controlling their access permissions in the MySQL server.

• Create User
• Drop User
• Show User
• Change User Password

Managing Databases

MySQL provides commands to create, select, display and delete databases for efficient data management.

• Create Databases
• Select a Databases
• Show databases
• Drop Databases

Managing Tables

MySQL provides features to create, modify, describe, rename and manage tables within a database.

• Create Tables
• DESCRIBE Table
• Rename Tables
• ALTER Table
• Temporary Tables
• AUTO_INCREMENT

Queries

MySQL queries are the heart of interacting with your database. They act as instructions, retrieving specific data, filtering results and performing calculations.

• SELECT Statement
• INSERT Statement
• UPDATE Statement
• DELETE Statement
• DELETE Duplicate Rows

Clauses

MySQL clauses are used to filter, sort, group and limit data in SQL queries.

• WHERE Clause
• HAVING Clause
• ORDER By Clause
• Group By Clause
• LIMIT Clause

Operators

MySQL operators are used to perform comparisons, logical operations and calculations in SQL queries. They help filter, manipulate and retrieve data efficiently.

• AND, OR, NOT Operator
• LIKE Operator
• IN Operator
• IS NULL Operator
• UNION Operator
• UNION ALL Operator
• EXCEPT Operator
• BETWEEN Operator
• ALL, ANY Operator
• INTERSECT Operator
• EXISTS Operator

Aggregate Functions

In MySQL, aggregate functions perform calculations on multiple rows and return a single meaningful value, such as counting records, finding averages, maximum values or totals.

• Introduction
• Count() Function
• SUM() Function
• MIN() Function
• MAX() Function
• AVG() Function

Data Constraints

MySQL constraints are rules applied to table columns to maintain accurate, valid and reliable data by preventing invalid or duplicate entries.

• NOT NULL
• Primary Key
• Foreign Key
• Composite Key
• UNIQUE
• CHECK Constraint
• DEFAULT Constraint

Joining Data

MySQL JOINs are used to combine data from multiple tables based on matching columns, helping retrieve related information efficiently.

• JOIN
• Outer Join
• Inner Join
• Left Join
• Right Join
• Self Join
• Full Join
• Cross Join
• UPDATE JOIN
• DELETE JOIN
• Recursive Join

Functions

MySQL functions are built-in tools used to perform calculations, manipulate strings, handle date and time operations and analyze data efficiently.

• Date Functions
• String Functions
• Math Functions
• JSON Functions
• LTRIM Function
• UPPER Function
• RTRIM Function
• CASE Function
• CAST Function
• Window Functions

Views

Views in MySQL are virtual tables created from SQL queries. They simplify complex queries, improve readability and make database interactions more efficient.

• Introduction
• CREATE VIEW
• DROP VIEW
• UPDATE VIEW
• RENAME VIEW

Indexes

Indexes in MySQL improve query performance by organizing data efficiently, allowing faster searching and retrieval of records.

• Introduction
• Create Index
• Drop Index
• Show Indexes
• Unique Index

Triggers

MySQL triggers are automatic programs that run when events such as INSERT, Show and DELETE occur, helping automate tasks and maintain data integrity.

• Introduction
• Create Trigger
• Show Trigger
• DROP Trigger

Miscellaneous Topics

Learn advanced and practical MySQL concepts to improve your database skills.

• Subqueries
• Procedure
• Transaction
• Common Table Expressions
• Cursors
• SQL Injection

MySQL Online Interview Questions

• Top 50 MySQL Interview Questions