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Conference ulysse::rdb_vms_competition

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

354.0. "INGRES update please." by GALVIA::BROSNAN (John Brosnan PTG Galway) Thu May 18 1989 19:40

Hi,

I am currently trying to get some information on the latest version (v6.?) 
of INGRES using notesfiles etc. I copied the document 'INGRES Features and 
Functionality' (note 159) dated 31-May-1988 which I found very useful but 
compares Rdb/VMS v3.0 with INGRES v5.0. I need to know what changes/updates
if any have been made to INGRES v5.0 especially in the following areas : 


1. I see from page 38 of 'INGRES Features and Functionality', table 3
that Ingres does not support any dynamic SQL statements (PREPARE,
EXECUTE, DESCRIBE etc.) is this still the case ? Also is it true to say 
that as EQUEL is not compiled until run time, by using EQUEL one can 
achieve the same end result as by using dynamic SQL ?

2. Still no concept of record clustering with INGRES ?

3. Is Ingres's maximum record size still 2008 bytes ?

4. Does Ingres now provide the ability to have multi table constraints ?

5. Does Ingres now support NULL values ?

6. What new data types have been added ? Does INGRES have an equivalent
'varying string' (vchar?) datatype ?

7. Still only trailing blanks and nulls of a field compressed ?

      Thanks in advance for any help,


                                     John.

T.R	Title	User	Personal Name	Date	Lines
354.1	Need documentation to re-do comparison	COOKIE::BERENSON	VAX Rdb/VMS Veteran	`Thu May 25 1989 19:22`	4
	I do not have the INGRES documentation to re-do the comparison, however I believe that all of the limitations you ask about are still in place. The only thing they really addressed in V6.x was performance. All the inherent functional limitations remain.
354.2	Some functional improvments	TAV02::ARIE_L	Arie Levy	`Sun May 28 1989 16:37`	8
	>The only thing they really addressed in V6.x was performance. All the >inherent functional limitations remain. I am not shure at all. I used to work for INGRES distributor, and I have some connections with employees of that company. As i have been told, version 6.X includes some functional improvments like: Null support and windowing. Arie
354.3	I'm pretty sure this is correct	QUILL::STEINER		`Sat Jun 10 1989 00:20`	39
	I am not 100% on these. I'd say about 90% certainty. Jim <<< Note 31.0 by GALVIA::BROSNAN "John Brosnan PTG Galway" >>> -< INGRES v6.0? >- Hi, I am currently trying to get some information on the latest version (v6.?) of INGRES using notesfiles etc, I posted a note in Rdb_VMS_Competition conference but haven't obtained the required information. I need to know what changes/updates if any have been made to INGRES v5.0 especially in the following areas : 1. Ingres v5.0 does not support any dynamic SQL statements (PREPARE, EXECUTE, DESCRIBE etc.) is this still true for v6.0 ? Also is it true to say that as EQUEL is not compiled until run time, by using EQUEL one can achieve the same end result as by using dynamic SQL ? << Rel 6 has Dynamic SQL. EQUEL is embedded, not dynamic. 2. Still no concept of record clustering with INGRES ? << Yup. 3. Is Ingres's maximum record size still 2008 bytes ? << not sure. Still limited though to a relatively small size. Thanks in advance for any help, John.