oracle关于批量执行数据库的操作

查询树结构的sql：
select * from T_oa_goods_type connect by prior id = parent_id start WITH id= '01'

批量添加sql：
insert all into tablename values() [b] into tablename values() .....[/b]
批量更新sql: 要确保sql执行正确的前提下不能出现需要回滚事务的业务，风险比较大
MERGE INTO t_s_role_function T1 USING (select * from ( select ' ' as roleid ,'' as functionId from dual union  select ' ' as roleid ,'' as functionId from dual
)) T2 ON (T1.ROLEID=T2.roleid AND T1.FUNCTIONID=T2.functionid)  WHEN MATCHED THEN UPDATE SET operation = T2.operation