| Title: | DEC Rdb against the World |
| Moderator: | HERON::GODFRIND |
| Created: | Fri Jun 12 1987 |
| Last Modified: | Thu Feb 23 1995 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 1348 |
| Total number of notes: | 5438 |
I am trying to get a list of differences in SQL implementations for
Rdb/VMS, ORACLE and Non-Stop SQL from Tandem ie What super-sets have
been implemented, and how they differ. I have a customer who may move
from Tandem, but would like info on how close the SQLs match.
Can anyone point me at a lead for tracking this down ?
Nigel
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 934.1 | Here's a pointer | IJSAPL::OLTHOF | Henny Olthof @UTO 838-2021 | Fri May 31 1991 17:13 | 15 |
A research on this subject has been done by a database consultant in
the Netherlands (assigned by two large companies Shell and Philips).
Result is a handbook on portability between DB2, Informix, Oracle, OS/2
database manager, SQL/DS and Rdb/VMS.
Author is Rick van der Lans (dutch participant in ANSI SQL committee).
More information and orders through the adrress below. Heared that
Codd&Date Consultants are interested in making this available in the
US).
R/20 Consultancy
Postduif 1
2171 PJ Sassenheim
Netherlands
tel (02522 - 18487) [Need access to Holland first]
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| 934.2 | TROA09::NAISH | O�4ME Paul Naish DTN 631-7280 | Tue Jun 04 1991 16:15 | 10 | |
I was looking for the differences between just Rdb and ORACLE. Check
out the replies in the SQL NOTES Conference (NOVA::SQL) note 1333.
Bottom line was ORACLE has a lot of non-standard extensions which are
very useful but prohibit easily porting applications between DB's.
You problem is not how the SQL's compare but what Tandem specific
extensions the customer has used. Given the market, they may have tried
to keep a degree of compatibility with DB2 as we have in Rdb which
might be a common comparing point.
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