Need some help with creating er model.

Learning Goal: I’m working on a databases question and need a sample publish to help me learn. Need some help with creating ER model. for more info, see the attached document.

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How many active questions are there for each difficulty level?

1) Questions can be categorised by how difficult they are. How many active questions are there for each difficulty level? Show difficulty, then number of questions for the difficulty, with the difficulty level with the most questions first. 2) What proportion of questions have never been shown in a test? Write a query which returns… Continue reading How many active questions are there for each difficulty level?

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Your sql code must be in text format, so that the instructor can cut and paste for review and testing purposes.

Learning Goal: I’m working on a databases project and need support to help me learn. First of all, have a look at the SQL database creation and population code that accompanies this assignment. You should be familiar with the fields and what kinds of data are represented in the database. All questions and items in… Continue reading Your sql code must be in text format, so that the instructor can cut and paste for review and testing purposes.

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