1
vote
1answer
102 views

How to compare and relate together the concept of DBMS to the concept of Cloud Storage system? [closed]

I am a student of Computer Science and I am writing my disseration on a Cloud Storage application developed in the company for wich I work. My problem is the following one: my supervisor (the teacher ...
8
votes
3answers
4k views

Why aren't Object Oriented databases used as much as Relational Databases? [closed]

I have come across many relational database management systems (RDBMS). But recently I used hibernate which made me start wondering why Object Oriented databases aren't more popular. If object ...
0
votes
1answer
270 views

RDBMS same type of optional data for multiple tables

I have an embedded database (SQLite), it stores information about events and page views, its purpose is to track the user journey inside my application. I need to provide support for optional custom ...
7
votes
3answers
240 views

Are there best practices for checking for errors in business logic for DB refreshes? [closed]

I'm working for a company with very large databases which all refresh overnight, ready for users to interrogate in the morning. These over night loads essentially truncate all the tables, and reload ...
35
votes
11answers
2k views

Why don't relational databases support returning information in a nested format?

Suppose I'm building a blog that I want to have posts and comments. So I create two tables, a 'posts' table with an autoincrementing integer 'id' column, and a 'comments' table that has a foreign key ...