Database Project Team 4 Group c v Menna Hamza Mohamad Hesham Mona Abdel Mageed Yasmine Shaker

Data base project  Learn How to work with relatively big database sizes  Learn how to optimize queries

1 st Phase  Get a working database  Populate database

Mall Data base  Mall Products  Places(shops, restaurants, Cinema)  Customer Oriented

Database Engine  Oracle  SQL Server 2005  SQL Server 2008

Data Generation(1 st phase)  100,000 per table  Inheritance problem  Fix manually  Products table grew to 600,000

Phase 2  Query Selection  5 queries  3 select  Mall viewer (Mall by name)  GetPlaceByName (Search for shops and restaurants with a given name)  Get Mother Board supported memory and ram

Phase 2 cont  2 update queries  PlayNextMovie (Changes a cinema now playing movie to next playing and set next playing with the query parameter)  Add a book

Phase 2 statistics  Get SQL server CPU, Cache Network Statistics  Use SQL profiler  Snap shots  SQL Management studio for client side statistics and execution plan

Phase 3  Optimize queries  Generate new databases  It s about size not data correctness  Choose 2 queries  Mall Viewer  GetPlaceByName

Performance Enhancement  Mostly from indexes  The application domain was helpful  Select is the most frequent and important operation  Insert book was re written to be more efficient  Cost is mostly due to clustered index update

Before and after (Time)

Before and after (Cost)

Size vs. time (Get Place)

Size vs. time (Mall Viewer)

Over all performance

Summary  Speed UP  85.7%  78.3%  Cost improvement  88%  99.6%  Over All Speed up  71.5%