试题详情单项选择题下列()是Oracle superaggregate函数?A、ROLLUPB、VARIANCEC、REGR_R2D、RANK正确答案:A答案解析:关注下方微信公众号,在线模考后查看热门试题Examinethestructureo You are wWhen performinYou are 下列哪一项是Oracle数据库中最小的存 When you You are woWhich command& Examine the SQL sta You installed& You want Which of Which two requiremenYou defineQWhich statement descYou want You are Given: What isExamine the&ens当在SQL*Plus中需要以DBA连接到