differences between oracle,pgsql,sybase

hello sir,

i m an engineering student and i m looking out for differrences between oracle v/s sybase v/s sql v/s pgsql v/s mysql with respect to the following points

1. rdbms

2. data independence

3. support of plsql

4. integrity

5. security

6. use and application 

7. support to thirdparty products

8. functionability

9. operatability

10. reliability

 

i would be very grateful to you if you can reply me to your best.