DCL Overview
Data Control Language (DCL) commands are used to control access to data in a database. They allow administrators to grant or revoke permissions to users or roles, ensuring the security and integrity of the database.
List of DCL Commands
| Command | Description |
|---|---|
GRANT | Gives specific privileges to users or roles. |
REVOKE | Removes specific privileges from users or roles. |
DENY | Explicitly denies certain permissions to users or roles, overriding any granted permissions. |
Purpose of DCL
DCL commands are essential for managing the security of a database. They help administrators ensure that only authorized users have access to sensitive data and can perform specific operations.
Common Use Cases
- Granting read-only access to certain users.
- Revoking access when a user leaves the organization.
- Denying permissions to restrict certain operations explicitly.