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 ...
|375||Oops - I got my initial database design wrong|
Just once in a while a question comes up on our Opentalk Forum that's so good and of such general interest that a longer answer is worthwhile. Such a question came up yesterday ... and elegantly asked and worded too, so it was a delight to read and answer.
You want a simple database application? Great ...
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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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