数据库中的派生值

Friends, I am developing an application for medium size shopping mall in ASP.net4 with sql server 2008. Should I store derived values like Total price in database or should I calculate this type of values from unit price each time when necessary. Earlier I preferred storing this type derived values in database as it helped me to show data to the user very easily. Waiting for your suggestion. Thank you friends. 解决方案 这篇关于数据库中的派生值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！