试题详情单项选择题在PL/SQL环境中,以下说法正确的是()A、字符串是用单引号加以界定的B、字符串是用双引号加以界定的C、对于单行注释可以用双斜线//开始D、多行注释是以大括号{}加以界定的E、每条语句以句点。做为结束符正确答案: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 When you You issue the folloThe NLS_SORTWhich of the followiThe accountingYou are 下列函数不属于集函数的是()。You are How can Note the̳Which s A user se User A ex NLS parameters can Performance diWhich two code fragmWhich two are attribWhat elements of glo当用户进程失败时,由()执行恢复操作,负Click the