MySQL DBA OCP 1Z0-883

MySQL Database Administrator
Prepare Exam 1Z0-883

Course overview
Lesson I. Introduction
- MySQL AB
- MySQL: The RDBMS Architecture
- Client/Server
- Commands and Queries
- Main programs
- MySQL Engine
Chapter I : MySQL Architecture
Lesson 2. Installation & configuration
- Installation and files location
- The my.cnf file
- Automate startup services
- User access and Security
- Log files management
- Backup/Import/Export and Restore

Why MySQL ? (The problem)
Small business
Startup
Open System
Small budget
Introduction

Easy to install
Easy to deploy and use
Scalable
Stable
Fast
Adapt for web application
Database server
MySQL: What is it? (The solution)

Company that created the MySQL database, 1995
Acquired by Sun Microsystem, January 2008
Later acquired by Oracle
And MySQL AB ?

Distributed environment
 The Client : « mysql »
 Requirements
 The host – The server location (IP) in the network, Local or remote
 Username
 Password
 Port
Connection script
$ mysql –u root –h localhost –p
#You are invite to type in the password at the prompt
Client/Server

The Server « mysqld »
 The daemon running on a computer
 listen to a specific port for incoming connection
 Treats request and response to clients

Common commands
CREATE – Create a database and/or a table
$ create database `mydb`;
$ create table ùsers` (`name` varchar(10) not null);
SELECT – Retrieves a set of data from a table in a database
$ select name from ùsers`;
INSERT – Adds a record data into the table
$ insert into ùsers`(name) values(‘My Name’);
UPDATE – Sets / Updates an existing data
$ update users where name=‘My Name’ set name=‘New Name’;
DELETE – Removes a record from the database
$ drop from users where name=‘New Name’;
Queries/Commands

Server
- Mysqld
- Mysqlsafe
- Mysql_multi
- Mysql.server
- Mysql_secure_installation
- Mysql_upgrade
Main programs
Client
- Mysql
- Mysqladmin
- Mysqlcheck
- Mysqldump
Mysql Administrative
- Mysqlaccess

They are components that handle the SQL operations for different table
types.
Transaction-safe tables
Nontransaction-safe tables
InnoDB the default storage engine
Determine the supported storage engines: $ SHOW ENGINES
Storage Engines 1

- InnoDB
- MyISAM
- Memory
- Merge
- Archive
- Federated
- NDB (NDBCLUSTER)
- CSV
- Blackhole
- Example
Storage Engines 2

Storage Engines: Make your choice

Linux: Install both the client and the server
$ sudo apt-get install mysql mysql-server
Check installation
$ sudo mysql –v
# Display the installed version
Installation & configuration

Follow intructions here
https://dev.mysql.com/doc/refman/5.6/en/mysql-installer-gui.html
Choose Full to install all components and features
MySQL on windows platform

Locate the MySQL Configuration file
On Ubuntu /etc/mysql/my.cnf
$ sudo nano /etc/mysql/my.cnf
# And from here you can modify the configuration to feed your needs. i.e changing
the client connection port
Configuration

The mysqld_safe
By default the server starts by the mysqld-safe
Activate automatic startup
$ sudo chkconfig --level 345 mysql on
Automate MySQL services at startup

Create account syntax
CREATE USER [IF NOT EXISTS]
user_specification [, user_specification] ...
[REQUIRE {NONE | ssl_option [[AND] ssl_option] ...}]
[WITH resource_option [resource_option] ...]
[password_option | lock_option] ...
CREATE USER 'jeffrey'@'localhost'
IDENTIFIED WITH sha256_password BY 'new-password'
PASSWORD EXPIRE INTERVAL 180 DAY;
User Account/Access and Security

GRANT
priv_type [(column_list)]
[, priv_type [(column_list)]] ...
ON [object_type] priv_level
TO user_specification [, user_specification] ...
[REQUIRE {NONE | ssl_option [[AND] ssl_option] ...}]
[WITH {GRANT OPTION | resource_option} ...]
CREATE USER 'jeffrey'@'localhost' IDENTIFIED BY 'mypass';
GRANT ALL ON db1.* TO 'jeffrey'@'localhost';
GRANT SELECT ON db2.invoice TO 'jeffrey'@'localhost';
ALTER USER 'jeffrey'@'localhost' WITH MAX_QUERIES_PER_HOUR 90;
Grant access privileges

- Mysql general log location
/var/log/ -> mysql.err – mysql.log
- MySQL Error logs
/var/log/mysql/ -> error.log
MySQL LOG files

- Mysqldump
Can backup all king of storage engine
> mysqldump [options] db_name [tbl_name ...]
> mysqldump [options] --databases db_name ...
> mysqldump [options] --all-databases
[Options]: http://dev.mysql.com/doc/refman/5.1/en/mysqldump.html
- Mysqlhotcopy
> mysqlhotcopy db_name [/path/to/new_directory]
> mysqlhotcopy db_name_1 ... db_name_n /path/to/new_directory
[Options]: http://dev.mysql.com/doc/refman/5.1/en/mysqlhotcopy.html
MYSQL Backup

The mysqlimport client provides a command-line interface to the LOAD DATA INFILE
SQL statement.
mysqlimport [options] db_name textfile1 [textfile2 ...]
[Options]: https://dev.mysql.com/doc/refman/5.0/en/mysqlimport.html
MYSQL Import data

MYSQL Restore
$ mysql -u [uname] -p[pass] [db_to_restore] < [path to your
file .sql]

Thank you
Kwaye Kant – CEO Ksoft Solutions
Software Developer

MySQL DBA OCP 1Z0-883

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