Example scenario. In a flight schedule system, there are a pilot table which refers to a plane_type table indicating the planes the pilot is able to fly (assuming that is a many-to-one relation).
I am wo开发者_高级运维rking on a MySQL database with over 60 tables. I use MySQL workbench for database modelling. I have broken down the model into several diagrams.
On a old web app I had a table with the following structure: tools(id, name, abbreviation, width, height, power, type)
Let\'s say I have a blog application. The author can add multiple images to a post either by giving a link to a url of an existing image on the web, or upload a new image.
I recently modified some code to allow for my quiz.php script to accommodate multiple quizzes as opposed to just one.To do this I sent along the quiz_id and quiz_title variables when the user clicks t
Does a refresh fast on commit union all materialized view (in Oracle) copy all the underlying data, or does it just have a reference to it?
I\'m fairly new in Mysql, but I have problem that I cannot solve. I will give you an example to demonstrate it. Please note that I know that (for current example) there are other simpler and more effi
First of all I know that there is no Car, Model, Manufacture... tables that I probably should make, but that is not a problem right now.
Say I have a customer table with 1:0..1 relationship with another table, I would normally have a Nullable FK in the customer table pointing to the other table.
I have hundreds of matrices that need to be used in R and most of them are around 45000x350 each. What I\'d like to do is find an optimal database software choice and schema to store the data in and b
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