Question

I am making a Java gui and web application which will use the same mysql database.

It’s a DTh management system where all the information will be stored and retrieved dynamically depending on input.

I believe that views are static by nature and thus would be useless as all my queries will have a different where condition (userid).

Do I need to use triggers? I mean I could code the java to execute multiple statements instead of using a inbuilt trigger (e.g. Insert in customers name and family members name both will have a duplicate copy for head of the family). Is there a performance hit? Am I wrong in some way?

And same thing what is the use of stored procedures? Can’t I use methods in java to do everything?

So, I am asking is it possible to shift all the calculation intensive stuff to java and web script instead of the sql. If yes, does this mean I only have to create the backend structure of Database(i.e. all the different tables and FK,PK) and do rest without using any sql stuff on mysql workbench?

Thank you for helping.

Answer 1

There is (as always) one correct answer: It depends.

If you only want to show and query some data, you probably won’t need trigger or stored procedures.

Views are a different thing: They are pretty helpful if you want a static viesw to a join-table or something like that. If you don’t need this, just don’t use it.

Keys are really important. They make your data robust against wrong input.

What you shoud use is PrepearedStatement instead of Statement. If you only use PreparedStatements, you are (nearly ?) safe in the question of SQL-Injection.