Say I have newsletters and then subscribers: Whenever a user subscribes to a newsletter we need to store this in a table - the subscribers list.
I have a tables (simplified) like this: Lender Id (PK) AgencyCode1 AgencyCode2 AgencyCode3... AgencyCode20 Agency
I have a design issue with db denormalization. I\'m making a relatively large database and need to optimize it a much as possible.
I\'m running a website that\'s starting to grow beyond simpl开发者_运维百科e performance and Tunning. It\'s a PHP app with MySQL as backend. MySQL is properly tunned and the code is optimized.
I have existing tables that are pretty much denormalized. There are no lookup tables for things list status, type, country, etc... This original design was done just to simplify the application\'s acc
I denormalized my data (so a date is split up in a year, month, day and hour column) But now I wonder how to query everything before a certain date.
This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time,or an extraordinarily narrow situation that is not generally applic
I currently have 3 tables s开发者_如何学JAVAtoring information about all the main cities in the world, each region/state that corresponds to those countries, and each city that is in those states/regi
I want to do a data denormalization for better performance, and put a sum of votes my bl开发者_开发问答og post receives inside Post model:
I am trying to use MongoDB, C# and NoRM to work on some sample projects, but at this point I\'m having a much harder time wrapping my head around the data model. With RDBMS\'s related data is no probl
加载中,请稍侯......