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MySQL Tutorial

MySQL is the world's most popular open-source relational database technology.

Our tutorial will start with the basics of MySQL such as how to retrieve and manipulate data. Then we will move to the more advanced topics such as how to create tables, functions, procedures, and triggers. We will conclude with a review of the functions that are proprietary to MySQL.

With this tutorial, you should be on your way to becoming proficient in MySQL and its programming language.

Prerequisites

There are no prequisities for this MySQL tutorial. You should be able to easily understand this tutorial and learn the basic concepts of MySQL as you progress to the more advanced topics.

Now, let's get started!

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MySQL Functions

Functions - Alphabetical MySQL Functions listed alphabetically
Functions - Category MySQL Functions listed by category

MySQL Keys, Constraints and Indexes

Primary Keys Create, alter, and drop primary keys
Unique Constraints Create, add, and drop unique constraints
Indexes Create, drop and rename indexes (performance tuning)

MySQL Privileges and Passwords

Grant/Revoke Privileges Grant or revoke privileges
Change Password Change a user's password

MySQL Database Administration

Users Database accounts

MySQL Programming

Functions Create and drop functions
Procedures Create and drop procedures
Triggers Create and drop triggers
Cursors Create cursors within stored programs
Literals (Constants) String, number, date, time, boolean literals
Declaring Variables Declare variables within stored programs
Loops and Conditional Statements LOOP statement, IF-THEN-ELSE and others
AUTO_INCREMENT (Sequences) Create a sequence of numbers using the AUTO_INCREMENT attribute
Comments within SQL How to create comments within your SQL statement

MySQL Comparison Operators

Comparison Operators Operators such as =, <>, !=, >, <, and so on

MySQL Query Types

SELECT Statement Retrieve records from a table
SELECT LIMIT Statement Retrieve records from a table and limit results
INSERT Statement Insert records into a table
UPDATE Statement Update records in a table
DELETE Statement Delete records from a table
DELETE LIMIT Statement Delete records and limit number of deletions
TRUNCATE TABLE Statement Delete all records from a table (no rollback)
UNION Operator Combine 2 result sets (removes duplicates)
UNION ALL Operator Combine 2 result sets (includes duplicates)
INTERSECT Operator Intersection of 2 result sets
Subqueries A query within a query

MySQL Joins

JOIN Tables Inner and Outer joins

MySQL Aliases

ALIASES Create a temporary name for a column or table

MySQL Clauses

DISTINCT Clause Retrieve unique records
FROM Clause List tables and join information
WHERE Clause Filter results
ORDER BY Clause Sort query results
GROUP BY Clause Group by one or more columns
HAVING Clause Restrict the groups of returned rows

MySQL SQL Functions

COUNT Function Return the count of an expression
SUM Function Return the sum of an expression
MIN Function Return the min of an expression
MAX Function Return the max of an expression
AVG Function Return the average of an expression

MySQL Conditions

AND Condition 2 or more conditions to be met
OR Condition Any one of the conditions are met
AND and OR Combine AND and OR conditions
LIKE Condition Use wildcards in a WHERE clause
IN Condition Alternative to multiple OR conditions
NOT Condition Negate a condition
IS NULL Condition Test for a NULL value
IS NOT NULL Condition Test for a NOT NULL value
BETWEEN Condition Retrieve within a range (inclusive)
EXISTS Condition Condition is met if subquery returns at least one row

MySQL Tables and Views

CREATE TABLE Create a table
CREATE TABLE AS Create a table from another table's definition and data
ALTER TABLE Add, modify, delete columns in a table; rename a table
DROP TABLE Delete a table
VIEW Virtual tables (views of other tables)

MySQL Data Types

Data Types Data Types in MySQL

MySQL Question and Answer

Question & Answer Various questions and answers