Data Modelling is designing of the data content and structure of the database.
The data model documents the structure of and interrelationships between the data - it is presented as a combination of simple diagrams and written definitions and is independent of any DBMS software or hardware considerations.
What is Rails Migrations?
Tell me how does Rails implement AJAX?
Explain what’s different between ActiveRecordRelation’s count, length and size methods?
Tell me what is CoC in Rails?
Tell me the difference between ActiveSupport’s “HashWithIndifferentAccess” and Ruby’s “Hash”?
Please explain request/response cycle?
Please explain what is a Rails Migration? Write up a short example of a simple Rails Migration with a table called customers, a string column called name, and a text column called description.?
Do you know who developed Rails?
Tell us ruby Supports Single Inheritance/multiple Inheritance Or Both?
Tell me what’s the difference between destroy and delete?
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