CreateRoleStmt::= CREATE ROLE role_name [ { INIT | INITIALLY } user_name_1[, user_name_2 [, ...] ] ]
role_name
user_name_1, user_name_2, ...
创建角色role_1并授予用户usr_1和用户usr_2。
role_1
usr_1
usr_2
SQL> CREATE ROLE role_1 INIT USER usr_1, usr_2;