The following 2 links explains transaction isolation.
http://www.acs.ilstu.edu/docs/Oracle/server.101/b10743/consist.htm
http://www.oracle.com/technology/oramag/oracle/05-nov/o65asktom.html
The following 2 links explains transaction isolation.
http://www.acs.ilstu.edu/docs/Oracle/server.101/b10743/consist.htm
http://www.oracle.com/technology/oramag/oracle/05-nov/o65asktom.html