how to grant privileges to user in mysql code example

Example 1: mysql grant all privileges to a user

GRANT ALL PRIVILEGES ON database_name.* TO 'username'@'localhost';

Example 2: mysql grant all privileges to user from any host

GRANT ALL PRIVILEGES ON database_name. * TO 'username'@'localhost';

Example 3: grant revoke privileges to mysql username

#in SQL execute
#GRANT type_of_permission ON database_name.table_name TO 'username'@'localhost';
GRANT ALL PRIVILEGES ON * . * TO 'username'@'localhost';
#reload all the privileges
FLUSH PRIVILEGES;

#Show Privileges
SHOW GRANTS FOR 'username'@'localhost';

#Revoke Privileges
REVOKE type_of_permission ON database_name.table_name FROM 'username'@'localhost';

Example 4: grant all priviledges to mysql user

/*
The GRANT statement is used to assign full control over specific database by providing all priviledge.
Follow below statement for assign priviledge to user
*/

Syntax: 
GRANT ALL PRIVILEGES ON mydb.* TO 'myuser'@'%' WITH GRANT OPTION;

/*
I hope it will help you.
Namaste
*/

Example 5: create mysql user with privileges

GRANT type_of_permission ON database_name.table_name TO ‘username’@'localhost’;

Example 6: mysql user grant database

-- Grants / privileges list
SELECT * FROM information_schema.user_privileges;
SELECT CONCAT('SHOW GRANTS FOR ''',user,'''@''',host,''';') FROM mysql.user;

-- Grant a user
/*  ALL PRIVILEGES  All privileges
    CREATE          Create databases and tables
    DROP            Drop databases and tables
    DELETE          Delete rows from a specific table
    INSERT          Insert rows into a specific table
    SELECT          Read a database
    UPDATE          Update table rows   */
GRANT SELECT, UPDATE ON db_name.table_name TO 'my_user'@'localhost';
GRANT SELECT ON *.* TO 'my_user'@'localhost';
GRANT ALL PRIVILEGES ON db_name.* TO 'my_user'@'localhost';

--Display user grants
SHOW GRANTS FOR 'my_user'@'localhost';