SHOW GRANTS
SHOW GRANTS 语句用于显示与用户关联的权限列表。与在 MySQL 中一样，USAGE 权限表示登录 TiDB 的能力。
语法图
ShowStmt:
Username:
示例
mysql> SHOW GRANTS;
+-------------------------------------------+
| Grants for User |
+-------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' |
+-------------------------------------------+
1 row in set (0.00 sec)
mysql> SHOW GRANTS FOR 'u1';
ERROR 1141 (42000): There is no such grant defined for user 'u1' on host '%'
mysql> CREATE USER u1;
Query OK, 1 row affected (0.04 sec)
mysql> GRANT SELECT ON test.* TO u1;
Query OK, 0 rows affected (0.04 sec)
mysql> SHOW GRANTS FOR u1;
+------------------------------------+
| Grants for u1@% |
+------------------------------------+
| GRANT USAGE ON *.* TO 'u1'@'%' |
| GRANT Select ON test.* TO 'u1'@'%' |
+------------------------------------+
2 rows in set (0.00 sec)
MySQL 兼容性
SHOW GRANTS 语句与 MySQL 完全兼容。如发现任何兼容性差异，请在 GitHub 上提交 issue。