Exercises, examples and other material relating to training module Q916. This topic is presented on public course Ruby on Rails
|Articles and tips on this subject||updated|
|2749||Delegate Question - defining MySQL table relationships as you create the tables|
Q - Can define how tables are linked (joined together) when you set them up in MySQL, rather than having to specify the join each time that you SELECT data from the tables?
What a great (and logical) idea, but it's not straightforward / automatically available. The current / default system in the ...
|918||Databases needn't be frightening, hard or expensive|
Have you written a web site using plain old HTML (perhaps with style sheets and images) and then extended it to more interactive content using a little PHP, JSP, Perl, cgi or similar? Are you keeping the data associated with your PHP - your on line programs - in plain text files? If you are, that ...
|666||Database design - get it right from first principles|
It's VITAL to get your data(base) design more or less right before you write too much code - otherwise you'll end up wasting a lot of time and effort writing kludge code and - worse - forcing your users into work-arounds for the lifetime of the system at great expense to everyone in time, effort and ...
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Topics covered in this module
Why use a database?
Designing your table structure.
The Structured Query Language - SQL.
How to keep your data robust.
Normalising your data.
Server and integrated database handlers
SQLite and MySQL.
Oracle, SQL Server, Access, PostGREsql and others.
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