摘要: create table t(company varchar(30),goods varchar(30),value int) insert into t select 'compal','compute',500 union all select 'compal','CPU',400 union all select 'compal','mouse',200 union all selec... 阅读全文
posted @ 2007-07-26 14:04 Nina 阅读(503) 评论(1) 推荐(0)