领袖又说了：“温故而知新”。那就让我们先看看11g以前是怎么实现地。行列转换一直当作甄别老手和新手的试金石，面试的时候面试官不问这个都不好意思张嘴。Itpub的Oracle开发版更是每隔十天半个月就有人问这个，你说重要不重要。 表里放着张三李四王二 ...

CheckListItems CheckListItemId ItemName 1 name1 2 name2 3 name3 4 name4 5 name5 ... I can't seem to get the PIVOT syntax correct- it has to be dynamic as I don't know all the ItemNames (and there ...

This has been driving me crazy. Can anyone help me understand how I can dynamically create a sort of calendar view for a promotional schedule? I can't seem to get anything to work My table ...

一直很想介绍 Pivot 这个概念，但是他非常的难翻译。字面上，Pivot 是“转轴”，“轴心”的意思，也就是一个机械构造赖以旋转的基础，是一个平常很少用的单字。但是 Pivot 变成了形容词 “pivotal” 之后，就带有“关键转折”，“逆转声势”的意思，变成一个 ...

You will often find that data stored in rows in normalized tables isn't in the prettiest form to display to an end user. Often, data will make more of an impact if it is displayed as a single row for ...

I was once asked what I thought Microsoft's overall product trajectory for SQL Server was, in light of Oracle's rather obvious trajectory of acquiring multiple application vendors who will, in turn, ...