View Single Post
Mar8-09, 12:04 PM   #1
 

E-R Diagram and SQL Commands


I feel very afraid of doing the questions about E-R Diagram and SQL Commands.

I always write wrong relationships in E-R Diagram and forget the SQL Commands.

Can anyone tell me how can I improve in doing these questions?

Any hints to memorize the SQL Commands?

Thank you very much!
PhysOrg.com
PhysOrg
science news on PhysOrg.com

>> Ants and carnivorous plants conspire for mutualistic feeding
>> Forecast for Titan: Wild weather could be ahead
>> Researchers stitch defects into the world's thinnest semiconductor