mysql grant select privileges to user code example

Example 1: mysql grant all privileges to a user

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

Example 2: 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 3: mysql grant grant option

GRANT ALL ON *.* TO 'user'@'localhost';

GRANT GRANT OPTION ON *.* TO 'user'@'localhost';

Example 4: 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';

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Sql Example