![]() When a user attempts to connect to a MySQL database or a server, the server verifies the user's privileges using the information stored in the grant tables. procs_priv: This table keeps track of privileges associated with stored procedures and functions. ![]() columns_priv: This table handles column-level privileges for user accounts, determining which users have particular privileges on specific columns within a table.ĥ. tables_priv: This table stores table-level privileges for user accounts, indicating which users have certain privileges on specific tables within a database.Ĥ. db: This table maintains database-level privileges for user accounts, specifying which users possess particular privileges on specific databases.ģ. user: This table holds data about user accounts, such as authentication credentials (username, password), global privileges, and other account settings.Ģ. These tables are part of the MySQL data dictionary and play an important role in managing user authentication and access to the MySQL server.ġ. Whenever a new user is created or their permissions are updated, MySQL stores this information in the database's memory, specifically a collection of system tables known as grant tables that stores data about user accounts, their associated privileges, and other relevant information. So without wasting any more time, let us get started. ![]() In this article, we will explore the use of the Flush Privileges statement in MySQL. The Flush Privileges statement is an important command in MySQL that is used to refresh the user privileges. The other way is to use Flush Privileges. One is to restart the whole database server, this will apply the new set of privileges on restart. Once the permissions for a user have been modified, there are 2 ways to make the changes effective. Permissions for various important database operations such as UPDATE, DELETE, INSERT, SELECT, and CREATE can be given to a user by granting permission and removed by revoking the permission. At the top of the chain is the root user which has all the privileges, it can make any changes on the database so any privileges that are given to or revoked for a particular user are done by the root user. These user-specific privileges are called user privileges. To maintain the security of the database, different sets of permissions are given to different users so that no unwanted changes can be made to the database. One of the key features of MySQL is the ability to manage users and their permissions.
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