[Info-vax] Oracle Database vs Oracle/Rdb

[Richard Maher]

On 28/06/2019 9:51 am, Arne Vajhøj wrote:
> On 6/27/2019 6:45 PM, Jan-Erik Söderholm wrote:
>> Den 2019-06-27 kl. 23:02, skrev Hein RMS van den Heuvel:
>>> If anything RDB was developed as a next
>>> step from the RDBMS Codasyl database when the relation model and notably
>>> 'SQL' became relevant in the late 70's...
>>
>> Note that it took a while before Rdb got support for SQL.
>> Was it in V3.x something? And if I'm not totaly wrong, SQL
>> support was an add-on option from the start (extra cost).
>> Today it is of course the standard interface.
> 
> When I first time encountered RDB in the late 80's the
> standard interface was RDO and SQL was a new thing
> recently added to RDB.
> 
> But even though I do not remember specific RDO syntax,
> then I believe it was pretty similar to SQL.
> 
> Arne

IIRC it was V3.0. The SQL Module processor was a game changer.

RDO had the FOR syntax for selects and was quite different.