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Step 4 - Application Server
to Database
uNot instantaneous (but really fast)
uHigh number of transmission requests are the #1 cause of performance problems.
uDatabase-independence is not a good idea.
ØSingle request from a client may require many requests from the application server to the database in order to fulfill.
uExamine and measure the number of round-trips from application server to database.
4. Send data from
App Server to Database