db2 performance tuning tips

Tags: des style color io os using AR strong data2014-06-20 BaoxinjianI. Summary Manually specify the execution plan for the SQL statementAlthough the Oracle Optimizer is smart, sometimes you want to choose your own execution plan, which can be achieved through hint. In a development test environment, you can test the performance of different execution plans through hint.The disadvantage of hint is that it increases the additional burden of manag

Column it here first, and sort it out when you are free. Crawling large lists in SharePoint 2007 Http://blogs.msdn.com/joshuag/archive/2009/10/05/crawling-large-lists-in-sharepoint-2007.aspx SharePoint indexing Performance Tuning tips Http://sharepointsearch.com/cs/blogs/notorioustech/archive/2009/03/06/sharepoint-indexing-

the data is first used. To do this, you should write some code (or write a reusable script function) on the ASP page to check for the existence of the data and load it into memory if the data does not exist. The following is a classic performance tuning technology--lazy evaluation: Function getemploymentstatuslistDim DD = Application ("Employmentstatuslist")If d = "" Then' Fetchemploymentstatuslist functio

there is no need to optimize unless you feel it can make your code easier to read (and Final,static,static final is more true)Frequently measuredBefore you start optimization, make sure you have some problems to solve. Make sure you can measure your existing performance accurately, otherwise you won't be able to measure the benefits of the alternatives you're trying toEach statement in this article has benchmarks, and the source code for the benchmar

After using the Lightroom for a period of time, feel more and more slowly, or because of a wide range of work, hoping to improve the efficiency of LR? Here are 10 tips from the founder of SLR Lounge, a foreign website, without installing programs that can directly enhance the speed and efficiency of LR software (for reading convenience, Order of Change slightly): 　　(i) Increased speed of pick-up (cache) To edit–> preference, in the pop-u