These programs were created to illustrate some of the concepts and capabilities
of the SDO for PHP extension.
They were intended to be as simple as possible, not to consider the issues of security and integrity which a production program must handle. Before using these examples you first need to create the sdo_contacts database using contactdb_mysql.sql. |
It can also be used to demonstrate optimistic locking, that is, simultaneous
access to the database is permitted, but a conflicting update is detected and
rolled back.
To run: open two browser windows, retrieve the same contact, update one of them,
then attempt to update the other.
The second attempt fails because the Relational DAS detects and reports the
collision.
Contacts demo