Question

I am currently working with a database in MyphpAdmin. There are a total of 9 tables that have been structured to bridge between each other. I am not sure that our table structure is the best and most efficient possible. I am running a query that only displays class_caption, class_name, course_name, and class_description. How can I create a MySQL query that will display all tables bridged together (except event)? Also, what modifications should be done to make this tables structure more efficient?

Basic Query

SELECT  class_name, class_caption, class_credit_hours, class_description
FROM class  

Answer 1

• First make them normalized. Very difficult to read your picture.
• Create the select statement – use JOIN and find the appropriate one for your query.
• Use EXPLAIN to see what is going on under the bonnet.
• Ensure that you have the appropriate indexes.

As an aside look up referential intergrity