The advantage of the insert statements with the XMLTABLE function over the annotated schema shred is generally better performance if the shredding is simple and the number of target tables is small.
相对于带注释的模式分解，这种使用xmltable函数的insert语句的优点是，如果分解比较简单，并且目标表的数量不多，这种方法通常可以取得更好的性能。
They then hand these statements to their marketing departments, who hide them behind little Windows in small type.
然后把这些声明交给他们的营销部门，这些人会把这些声明使用小的字体藏在小窗口的后面。
Fortunately, the impact of log statements on performance is minimal or nonexistent for most cases, and because the logging tools are easy to use, the learning curve is very small.
幸运的是，日志对于性能的影响很小，大部分情况下甚至根本不会对性能产生任何影响，而且由于日志工具非常简单易用，因此学习曲线也非常平滑。
应用推荐