My goal is to keep track of the popular posts on different blog sites based on social network activity at any given time. The goal is not to simply get the most popular now, but instead find posts ...
Well while developing a web application that allow users to draw graphs (flow charts, ER diagram , UML, .... etc) the information of drawn items and their relation to each other and position on canvas ...
I'm working on a new point of sale for a company that products for different prices depending on the product mix. All products have a base price. To explain my problem, I will use the following ...
I have a table of user relationship which stores who follows whom, the table structure is as follows -id -follower -following when someone follows any other user, I add a record with follower user ...
Our database does not have any audit functionality. It does not records who inserts the record or who who changes it It does not keep a history of the changes made Nothing can be restored if ...
What are the advantages and disadvantages of storing the number of comments in an integer column vs. calculating it on the fly?
Let's take CodeReview page as an example. If you go here, you will see the list of the questions with their vote numbers and comment numbers Now, I am wondering if these numbers are calculated on the ...
Suppose you want to create a web page with some search capabilities over a database. Search has to be restricted both on some categorization of data and open text given by the users. Functional and ...