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Overview
The Introduction to MariaDB course covers the basics of the SQL language as implemented by MariaDB. The course is designed to give delegates practical experience in writing SQL statements using the MySQL client program and MySQL Workbench. The basic SQL statements, including the use of SQL functions and the basic table and view handling statements are introduced.
Learning Objectives
To provide the skills needed to create and alter a MariaDB database and query and modify data held within such a database.
The delegates will practice:
- Using client programs to access a MariaDB database
- Creating, altering and dropping a MariaDB database
- Writing SQL statements to select data from a MariaDB database
- Writing joins and subqueries
- Using SQL expressions
- Using SQL aggregate functions and scalar functions
- Inserting, updating, deleting and replacing rows
- Creating and altering tables, indexes and views
- Using transactions
- Granting and revoking access privileges on tables and views
- Exporting and importing data
Course duration
3 Days
Course outline
Database Concepts
- What is a database?
- Database management systems
- Tables, rows and columns
- Indexes, primary keys, unique constraints and foreign keys
- Client-Server architecture
- Supported data types
- Storage engines and table types
- The Information_Schema and MySQL Databases for MariaDB
- Exercise: Using a MariaDB Database
Using the MySQL Client with MariaDB
- What is the MySQL client?
- Getting started and Logging in
- Selecting a database
- Client commands
- Entering and executing SQL statements
- Retrieving previous commands
- Creating, editing and executing SQL files
- Redirecting output into a file
- Command line execution of SQL Scripts
- Exercise: Using the MySQL Client
Basic Select
- The SQL SELECT statement
- Case sensitivity
- Quotes
- Statement terminator
- Syntax conventions
- The select clause
- The FROM clause
- Conditions and the WHERE clause
- Logical operators
- The ORDER BY clause
- Column aliases
- Arithmetic expressions
- Precedence of operators
- Exercises: Querying the sample database
Limit, Union & Aggregate Functions
- The LIMIT clause
- UNION
- UNION ALL
- Aggregate functions
- The GROUP BY clause
- Using Rollup with GROUP BY
- The HAVING clause
- Exercises: Using Limit, Union and Aggregate Functions
Subqueries & Joins
- Subqueries
- Cartesian products
- Joins with original syntax
- Table aliases
- Natural joins
- Join using
- Join on
- Multi-table joins
- Exercises: Using Subqueries and Joins
Numeric & Character Functions
- Function types
- Testing functions
- Numeric functions
- Character functions
- Exercise: Using Numeric and Character Functions
Date, Time & Other Functions
- Date and time column types
- Date and time formats
- The date format function
- Functions to return date time
- Functions to extract components from date time
- Date time arithmetic
- Miscellaneous functions
- Exercise: Using Date, Time and other functions
Databases & Tables
- Creating a database
- Selecting a database
- Creating tables
- Auto_increment
- Show create table
- Column operations
- Constraint operations
- Copying tables
- Renaming tables
- Changing engine for tables
- Dropping tables
- Temporary tables
- Exercises: Maintaining databases and tables
Indexes & Views
- What is an index?
- Creating an index
- Reviewing indexes
- Dropping indexes
- What is a view?
- Creating views
- View restrictions
- Dropping views
- Exercise: Maintaining indexes and views
Managing Data
- Inserting rows
- Replacing rows
- Updating rows
- Deleting rows
- The truncate statement
- The COMMIT and ROLLBACK commands
- Savepoints
- Implicit commits
- Exercise: Managing data
Access Control
- Creating users
- Renaming users
- Dropping users
- Granting privileges
- Revoking privileges
- Exercise: Creating users, granting and revoking
Import & Export
- Exporting using SQL
- Importing using SQL
- Exporting from the command line
- Importing from the command line
- Exercise: Export and import data
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