oracle----------取列数据的乘积
摘要：
---------------------------------------------------------------建表----------------判断表是否存在declare num number; begin select count(1) into num from user_tables where table_name='TEST'; if num>0 then ... 阅读全文
posted @ 2009-09-23 11:49 xiaoc.li 阅读(789) 评论(0) 推荐(0) 编辑