Heh, I started programming in PL/1 with DL/1 databases. All hierarchical and you had to navigate round the tree using calls like "GN" (get next) and "GU" (get unique). Oh the memories!
Regards, Mike Hately __________________Reply Separator____________________ > Author: "Mercadante; Thomas F" <[EMAIL PROTECTED]> > Date: 6/25/2002 6:08 AM > > Oh you bunch of young whipper-snappers! > > A long time ago in a place far-away, we started with simple File > Systems. > Then came ISAM file systems. > These begate DBMS systems. Note there was no 'R' in original DBMS > systems. > Some of these were simply an extention to ISAM files that allowed > (and > demanded) a more formalized collection of files. In these files, > there were > tables and indexes and primary keys. I remember these as > "Hierarchical > Database Systems". Still no such thing as foreign keys. > > Finally, I believe, DEC came out with the RBMS system which was (I > know I > will be corrected on this) one of the first Relational Database > Managment > Systems to be made available for large systems. (I have no knowledge > of IBM > products - anybody? When did DB2 make itself known?). > > On PC's there was also something called RDB I think. > > See, its good to be old! > > Tom Mercadante > Oracle Certified Professional > ____________________________________________________________________________ ________________________ This email and any attached to it are confidential and intended only for the individual or entity to which it is addressed. If you are not the intended recipient, please let us know by telephoning or emailing the sender. You should also delete the email and any attachment from your systems and should not copy the email or any attachment or disclose their content to any other person or entity. The views expressed here are not necessarily those of Churchill Insurance Group plc or its affiliates or subsidiaries. Thank you. Churchill Insurance Group plc. Company Registration Number - 2280426. England. Registered Office: Churchill Court, Westmoreland Road, Bromley, Kent BR1 1DP. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Hately Mike INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
