试题详情单项选择题PL/SQL和数据库之间是通过()进行数据交换。A、函数B、过程C、常量D、变量正确答案:D答案解析:关注下方微信公众号,在线模考后查看热门试题下列对于惟一码约束,说法错误的是()。You explicitlyWhile tuning a SQL s Consider the&eThis is thGiven: What isGiven: WhatistheresYou need 游标变量的类型是()。For OracleQ Your database is ru You issued&ensGiven: Which c From the Redo log You executed the foViewtheExhibitandexaWhich modifierYour test̳ You opened&ens