delete sur from sys_user_role sur left join sys_user su on sur.user_id=su.id where su.user_code = #{ucode} insert into user_role(user_id,role_id) values (#{uid},#{rid}) SELECT sr.* FROM sys_role sr LEFT JOIN sys_user_role sur ON sr.id=sur.role_id WHERE sur.user_id = #{uid} select role_id from sys_user_role where user_id = #{ucode} SELECT p.* FROM sys_role r LEFT JOIN sys_role_permission rp ON rp.role_id=r.id LEFT JOIN sys_permission p ON p.id=rp.permission_id WHERE r.id = #{rid}