On Sunday, Dec 21, 2003, at 12:40 America/Denver, Rob Cozens wrote:
I, for one, am unsure of your definition of OODB or the specific db structure you wish to support. I started a response to your original query re OODB; but trashed it because (a) I wasn't sure it was pertinent and (b) I could not find and current links to the product on the 'net.
Object-Oriented databases are similar in concept to the Object-Oriented application that Revolution is reputed to be. The primary difference is that they focus more on the data aspects. One of the interesting features is the idea that children data objects inherit their primary characteristics from their parent.
Valentina puts itself forward as a OODB with relational aspects as well. A hybrid, if you will. And if it is as it claims it looks very promising for something I am intent upon accomplishing come next year. As it might overcome one of the problems with OODBs mentioned in a discussion earlier, on this listserv....changes to the data structure that might require extensive manual intervention in order to maintain the final application.
Before discussions on the HyperCard List convinced me to write my own database, I purchased a license for Answer Software's HyBase [I'm hazy on the company name, it was in Palo Alto, Sunnyvale, or thereabouts].
HyBase was touted as a fourth-generation database capable of supporting code segments and objects. It was delivered as a set of extensions in HyperTalk external format. It looked promising & powerful to me; but (1) it was overkill for my needs and (2) by using my own db I have no liability for royalties when distributing my products.
Never heard of HyBase before. I'll look into that possibility. I'm looking at using January for analysis of options and making the purchases in February, if not sooner.
I really don't know if this has any relevance to your question; but if you want to take another shot at describing the data structure(s) and functionality you want to support, I'll ponder whether/how one might support them in SDB.
It was helpful for me.
Merry Christmas,
Chuck
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