The Information Schema USER_PRIVILEGES table contains global user privilege information derived from the mysql.user grant table.

It contains the following columns:

ColumnDescription
GRANTEEIn the format user_name@host_name.
TABLE_CATALOGAlways def.
PRIVILEGE_TYPEThe specific privilege, for example SELECT, INSERT, UPDATE or REFERENCES.
IS_GRANTABLEWhether the user has the GRANT OPTION for this privilege.

Similar information can be accessed with the SHOW GRANTS statement. See the GRANT article for more about privileges.

This information is also stored in the user table, in the mysql system database.

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