GRANT and REVOKE is DCL or DDL? [closed]

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Thanks in advance for everyone, because you are always providing your great knowledge and help me. Currently, I tested myself via dumps and there are many questions where I see that GRANT and REVOKE is a DDL statement. But as I know from internet resources, online courses and etc. this statements should be DCL. What is wrong in my knowledge? Who can clarify it for me?

来源：https://stackoverflow.com/questions/61694539/grant-and-revoke-is-dcl-or-ddl