Mysql grand
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This document provides instructions for creating and managing MySQL databases. It describes how to create a database, display existing databases, select a database to work with, remove databases, create user accounts, grant privileges to users, connect to the MySQL server using a user account, reset passwords, and revoke privileges from users. Key steps include using SQL statements like CREATE DATABASE, SHOW DATABASES, USE, DROP DATABASE, CREATE USER, GRANT, and REVOKE.
![To create a database in MySQL
• CREATE DATABASE [IF NOT
EXISTS]database_name;
• Example:
• CREATE DATABASE student;](https://image.slidesharecdn.com/createdatabaseandgrant-150225225137-conversion-gate02/85/Mysql-grand-4-320.jpg)
![Revoke
• The REVOKE statement enables system
administrators to revoke privileges from MySQL
accounts.
• REVOKE priv_type [(column_list)] [, priv_type
[(column_list)]] ... ON priv_level FROM user [,
user] ...
• REVOKE ALL PRIVILEGES, GRANT OPTION FROM
user [, user] ...](https://image.slidesharecdn.com/createdatabaseandgrant-150225225137-conversion-gate02/85/Mysql-grand-19-320.jpg)
Mysql grand
- 2. • D:>cd wampbinmysqlmysql5.6.12bin • D:> cd XAMPPmysqlbin
- 3. Creating Database • Before doing anything else with the data in MySQL, you need to create a database. A database is a container of data. • It stores contacts, vendors, customers, students, colleges or any kind of data that you can think of. • In MySQL, a database is a collection of objects that are used to store and manipulate data such as tables, database views, triggers, stored procedures, etc.
- 4. To create a database in MySQL • CREATE DATABASE [IF NOT EXISTS]database_name; • Example: • CREATE DATABASE student;
- 5. Before start the XAMPP Server
- 6. Displaying Databases • The SHOW DATABASE statement displays all databases in the MySQL database server. Example: Mysql>SHOW DATABASES;
- 7. Selecting a database to work with • Before working with a particular database, you must tell MySQL which database you want to work with by using the USE statement. • Example: Mysql>USE database_name; Mysql>Use Student; • NOTE: • From now all operations such as querying data, create new tables or stored procedures which you perform, will take effects on the current
- 9. Removing Databases • Removing database means you delete the database physically. All the data and related objects inside the database are permanently deleted and this cannot be undone, therefore it is very important to execute this query with extra cautions. • Example: Mysql>DROP DATABASE database_name;
- 11. CREATE USER ACCOUNT: • Mysql>create user (newuser_name)@localhost identified by ‘password’; • Example: • Mysql> create user siddiq@localhost identified by '123'; • Query OK, 0 rows affected (0.02 sec)
- 13. Create a User Account • Mysql>GRANT ALL ON database_name.* To user_name@localhost IDENTIFIED by ‘Password’; • mysql> GRANT ALL ON sample.* TO sps@localhost IDENTIFIED BY 'mypassword'; Note: • GRANT ALL means all privileges i.e. user is permitted do anything. She/he can read, modify or delete data, but only on tables in the demo database. She/he cannot access any other database.
- 15. How do I connect to MySQL server using user1 account?• User SPS can connect to mysql server SAMPLE database using following command: • $ mysql –u sps –p (OR) • $ mysql –u sps -h mysql.server.com -p demo Where, • -u user1: MySQL Username • -h : MySQL server name (default is localhost) • -p : Prompt for password • demo: demo is name of mysql database (optional)
- 18. Resetting the Root/User Password: • Update mysql.user SET Password= ‘new password’ Where User = ‘User_name’; • Flush PRIVILEGES; • Write the UPDATE and FLUSH statements each on a single line. The UPDATE statement resets the password for allroot accounts, and the FLUSH statement tells the server to reload the grant tables into memory so that it notices the password change
- 19. Revoke • The REVOKE statement enables system administrators to revoke privileges from MySQL accounts. • REVOKE priv_type [(column_list)] [, priv_type [(column_list)]] ... ON priv_level FROM user [, user] ... • REVOKE ALL PRIVILEGES, GRANT OPTION FROM user [, user] ...
- 20. • mysql> revoke delete on college.* • -> from staff@localhost; • Query OK, 0 rows affected (0.00 sec) • • mysql> revoke all on college.* • -> from staff@localhost; • Query OK, 0 rows affected (0.00 sec)