Tagged Questions

0
votes
2answers
36 views

Is there a good reason to store big text data outside database?

I was analyzing my MySQL database performance and found that tables containing text fields are just huge, larger than 1Gb. This data is only used when loading single record (like article or blog ...
0
votes
1answer
57 views

Database schema design help needed

I am developing a PHP application expecting millions of records both parent and children. My goal is to design an optimized database design to achieve high speed and performance. This application ...
1
vote
4answers
107 views

Normalization of DB

I have designed a database using MySQL likewise My question is what else i can do to normalize the DB, for now i am using InnoDB engine for the table to maintain the relation among different tables. ...
0
votes
2answers
60 views

Academic Journals and Reviews for Database Systems [closed]

I want to start reading up on the latest advances in database technology. Can anyone tell me what are the leading academic journals on the subject? Also, I have a friend doing a PhD in another area ...
1
vote
2answers
142 views

XML Large DataBase is the best? [closed]

Is the best way to implement a large database is XML? Or is there a better way? 1 - reduce the time complexity 2 - Reduce the amount of traffic between the tables And other factors ... Which ...
4
votes
1answer
128 views

250 billion rows - computing interconnectedness on a really huge scale

I have a table of approximately 700k rows, each identified by a unique itemnumber. Each row/item can be associated with any of the other rows/items in the table by calculating a single numerical ...
1
vote
1answer
90 views

What is the best relationship model for high performance?

I want to model a relationship between Customer and Transaction. However, because Customer is only described by a unique string and no extra info, I have two possibilities to implement it in the ...
1
vote
1answer
482 views

Planning simple CMS: How much relation?

I'm currently in the process of designing the database for a rather minimalistic Content Management System I'm working on alone. It should allow scalability while remaining speed, especially on boxes ...
6
votes
2answers
301 views

Data Compression Through Base36 Encoding

I'm trying to store a lot of large numbers that truncate when stored as INT values. Unfortunately they are too large for this type. I'm thinking about using Base36 encoding to accomplish this. Are ...
3
votes
4answers
421 views

Should we add extra 5 columns or build a separate table?

Currently we have a table with 35 fields in it. Now, we got a requirement to add 5 extra columns but these columns will not be fill always. So, I was thinking just add one column and have that id as ...
1
vote
2answers
143 views

Does this cause overhead ? Select name from User where user_name LIKE '%alex%'

I'm wondering if this statement can cause real overhead if many concurrent users send the same request to mySQL InnoDB storage engine. Let's say I have a table that has the user_name, and someone want ...
3
votes
3answers
112 views

Optimisation Newbie: How much of a 'sin' is redundancy?

I've been developing for a while, but never really had to deal with DB/scaling issues before. That's suddenly changed and I've found myself in the deep end. I have 2 SQL tables, as such: VOTES ...
9
votes
2answers
223 views

How many Sproc Parameters is too many?

I've just started writing a Stored Procedure in SQL Server 2008 and have 30+ parameters. I've never written one with more than ~10 parameters, and that got me thinking... At what point are there too ...
2
votes
1answer
172 views

In DB2, what are the alternative ways of evaluating an index's (or several indexes) benefit?

I'm trying to evaluate different approaches to analyzing the benefit of changing the set of indexes that are available. If I pick some representative queries from my workload, I can run EXPLAIN and ...