I\'m somewhat new to SQL. I need to make an invoice that can be queried to create a document that looks something like this:
I\'ve once again read through the Apple developer Core Data documentation and found it lacking when it comes to the graphical Xcode 4 editor when creating SQLLite entities much as I found it lacking w
I\'m trying to implement this project: http://img7.imagebanana.com/img/cnb46ti2/relationships.png I want to let view the skills of an employee on the employee\'s show page
I\'ve got a core data model created using XCode 4 that is doing something weird.I have an entity called ProbeObj that has a defined relationship with a second entity called SmokeObj.In the diagram, I\
I have 3 tables (Patient,Doctor,Appointments) patient has a primary key(Patient_ID)and a foreign key (Doctor_ID)
This is probably just because my knowledge with the EF Code First fluent API is lacking, but I\'m stumped.
I have the following has_many :administrators, :class_name => \"User\", :conditions => \"role_id = 4\"
I am currently making a database for a rails application. This schema involves three models: Photo, Object and Tag. Both photos and objects need to be \"taggable\".
I have a simple Coredata model with one entity called \"conversation\" and the other one \"messages\". Basically, I need to kind of reproduce the iPhone sms application.
To give you an idea of the problem I\'m trying to solve I\'ll use an example. The issue is that there can be multiple possible relationships between classes, and how to represent this in the models fi
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