> yep > it used to be adabas, but they got bought by SAP. i use sapdb here and > am quite happy about it. and my windows-colleages love the apps coming > with sapdb (there are a lot of windows-apps for administering the > databases, backups, ...).
Do you know if there are any books on SAP DB? I've been wanting to learn more. The docs are decent, but I was hoping for third-pary books as well, but haven't found any. Jon > > yours > josef > > On Mon, 2002-11-18 at 15:35, Ronald Hermans wrote: > > Never heart of SAP DB. Is it related to SAP itself? > > > > Cheers, > > Ronald > > > > > > -----Original Message----- > > From: Jonathan Bartlett [mailto:[EMAIL PROTECTED]] > > Sent: maandag 18 november 2002 15:11 > > To: [EMAIL PROTECTED] > > Subject: Re: Mysql or Postgresql > > > > > > Before I start, let me first say that you have left out two very good > > open-source databases from consideration - SAP DB and Interbase. You > > might look into both of these. Anyway, as to your specific question: > > > > MySQL does not support the relational idea very well. > > > > People do not use relational databases because they are fast. While it is > > theoretically possible to make relational databases extremely fast, it is > > usually not done. The reason people use relational databases is because > > the relational idea makes managing data, changing data schemas, and > > multiple applications very well. > > > > For example, PostgreSQL supports views, MySQL does not. This is very > > important if your database is going to be used by more than one > > application, or has a chance of changing in the future. > > > > PostgreSQL supports arbitrary types defined by the user, MySQL does not. > > > > PostgreSQL support _serializable_ transactions (the highest isolation > > level). I don't believe MySQL supports that level of transactions. > > > > PostgreSQL allows you to write functions in many languages. MySQL does > > not. > > > > PostgreSQL allows unions, and even unions and group by's in views. MySQL > > does not. > > > > If your data is important, I would go with PostgreSQL, simply because it > > has much better data management options. For many things it is faster, > > too. > > > > Jon > > > > On Mon, 18 Nov 2002, Shiva Haddad wrote: > > > > > I want to have client , server database in redhat for a IP Telephone > > system product, > > > it must be multi-user & ... > > > which one is better , Mysql or postgresql ? > > > > > > > > > > > -- > > redhat-list mailing list > > unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > > https://listman.redhat.com/mailman/listinfo/redhat-list > > > > > > > > -- > > redhat-list mailing list > > unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > > https://listman.redhat.com/mailman/listinfo/redhat-list > > > > > > -- > redhat-list mailing list > unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > https://listman.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
