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MySQL Database Operations Guide

1. MySQL Service Management

Starting MySQL Service

To start the MySQL service, use the following commands:

net start mysql

Stopping MySQL Service

To stop the MySQL service, use:

net stop mysql

2. Logging into MySQL

To access the MySQL database, use the following command:

mysql -u username -p

• Replace username with your MySQL username.
• If prompted, enter your password.
• Note: For remote access, include the server IP address:

mysql -h ip_address -u username -p

3. Managing Users

Adding a New User

To create a new user with specific permissions, use the grant command:

grant select,insert,update,delete on *.* to newuser@localhost identified by "newpassword";

• Replace newuser and newpassword with your desired username and password.
• For remote access, replace localhost with % to allow login from any machine.

Removing Password

If you want to remove the password for a user:

grant select,insert,update,delete on mydb.* to newuser@localhost identified by "";

4. Database Operations

Listing Databases

To view a list of available databases:

show databases;

• Note: The default databases are mysql and test.

Listing Tables

To see the tables in a database:

use mysql;show tables;

Describing Table Structure

To view the structure of a table:

describe table_name;

Creating/Dropping Databases

• Create a database:

create database dbname;

• Drop a database:

drop database dbname;

Managing Tables

• Create a table:

use dbname;create table table_name (column_definitions);

• Drop a table:

drop table table_name;

Inserting and Retrieving Data

• Insert data into a table:

insert into table_name values (data);

• Retrieve data from a table:

select * from table_name;

Truncating a Table

To clear all data in a table:

delete from table_name;

5. Backing Up Databases

Using mysqldump

To create a backup:

mysqldump -u root -p dbname > backup.sql;

• Replace dbname with the database you want to backup.

6. Remote MySQL Access

For remote connections, use the following command:

mysql -h remote_ip -u root -p

• Replace remote_ip with the target server's IP address.

7. Exiting MySQL

To exit the MySQL prompt:

exit

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