I have two separate database applications running, one for the initial Pre-Delivery preparation of new vehicles, and one for the final taxing and delivery to customers. These two systems were developed independently but are used by the same people. Each of these databases has a user table, used for initial authentication, and also for logging purposes, i.e. who did what action and when. Each user table has as it's primary key an int4, but these don't match between the two systems. I am about to develop a new system to encompass the whole order to delivery process which will mean the creation of a third system with a third database, user table and authentication process. What is the best way to develop an authentication method where one user-id/password system can be used by three separate databases? Is it possible to get postgresql to do this cross-database access or will I have to handle it in the PHP code? -- Gary Stainburn This email does not contain private or confidential material as it may be snooped on by interested government parties for unknown and undisclosed purposes - Regulation of Investigatory Powers Act, 2000
