Hi, I am having some problems understanding the concept of Object Relational Mapping, could you please clarify my understanding? Here are my problems: I don't...
Tai Tran
txtran2001@...
Aug 1, 2001 1:30 pm
1323
Hi all: i have a problem with the Map class when i tried to run the sales sample that xml-dbms v.1.1 gives. This is the error message: ...
celeborn99@...
Aug 1, 2001 3:30 pm
1324
Hi all: i have a problem with the Map class when i tried to run the sales sample that xml-dbms v.1.1 gives. This is the error message: ...
celeborn99@...
Aug 1, 2001 3:35 pm
1325
Hi, Can you tell me how can you create a new database file (prefarably for MS Access ) through a java program. Thanks, Shachi Poddar...
Shachi Poddar
shachi_poddar@...
Aug 1, 2001 5:34 pm
1326
Ron, Please take a look at Chapter 11 called Connection Pooling. Especially Figure 11-2 Download the JDBC 3.0 Specification http://java.sun.com/jdbc I am going...
Michael I Angerman
glendive69@...
Aug 1, 2001 11:19 pm
1327
Hi Ronald and others member, I've just read your article in: http://www.xmlhack.com/read.php?item=1136 I already d/l the program and run it, it works fine what...
Angel
wanehnih@...
Aug 2, 2001 1:06 am
1328
... You don't need a DTD when you actually transfer data. You effectively need a DTD when you map an XML document to the database. This is because the mapping...
Ronald Bourret
rpbourret@...
Aug 2, 2001 1:43 am
1329
You didn't tell me what command you ran, but my guess is that you tried to transfer data using a root table other than Sales. (For example, you ran a command...
Ronald Bourret
rpbourret@...
Aug 2, 2001 1:43 am
1330
I don't know if this is possible for Access. From Java, one way to do this would be to execute a CREATE DATABASE statement through JDBC. However, it does not...
Ronald Bourret
rpbourret@...
Aug 2, 2001 1:52 am
1331
... Connection Pool Design Version 0.1 ... At this point in time I am only worried about the pool of PreparedStatements which is associated with a particular ...
Michael I Angerman
glendive69@...
Aug 2, 2001 1:55 am
1332
i ran the same command that document tall: java de.tudarmstadt.ito.xmldbms.tools.Transfer Driver=sun.jdbc.odbc.JdbcOdbcDriver URL=jdbc:odbc:ventas User=sa ...
celeborn99@...
Aug 2, 2001 8:02 am
1333
The problem is that that there is no table named Orders in your map. Try it with the property Table=Sales. -- Ron...
Ronald Bourret
rpbourret@...
Aug 2, 2001 9:24 am
1334
I did it, and i got next Exception: java de.tudarmstadt.ito.xmldbms.tools.Transfer Driver=sun.jdbc.odbc.JdbcOdbcDriver URL=jdbc:odbc:ventas User=sa Password= ...
celeborn99@...
Aug 2, 2001 11:15 am
1335
If possible, could you please explain in details how does XML-DBMS maps a DTD to a database and vice versa? To be more specific, how does XML-DBMS get the...
Tai Tran
txtran2001@...
Aug 2, 2001 12:45 pm
1336
... This looks perfect. I really like the idea of implementing our own, but letting people use other implementations if they have them. Nice migration path. In...
Ronald Bourret
rpbourret@...
Aug 2, 2001 4:42 pm
1337
... I just realized we might need this in 2.0. The reason is to support inheritance. When one element type inherits from another, its data can be spread across...
Ronald Bourret
rpbourret@...
Aug 2, 2001 4:49 pm
1338
... This is probably also a good time to build the diagnostic logging support in. That is, it would be really nice if, each time that XMLDBMS accessed the...
Bryan Pendleton
bryan.pendleton@...
Aug 2, 2001 7:02 pm
1339
Very good point. I agree. -- Ron ... -- Ronald Bourret Programming, Writing, and Training XML, Databases, and Schemas http://www.rpbourret.com...
Ronald Bourret
rpbourret@...
Aug 2, 2001 8:26 pm
1340
In thinking about this problem further we need another data structure that encapsulates the data that is currently stored in a Row today. Given the Orders...
Michael I Angerman
glendive69@...
Aug 3, 2001 12:20 am
1341
... I haven't used DB/XML Transform, so I don't know the exact differences. Both products are based on the same object-relational mapping. I think the...
Ronald Bourret
rpbourret@...
Aug 3, 2001 7:43 am
1342
... There are really three questions here. Q1) How does XML-DBMS generate a map from a DTD? A1) See the algorithm in section 4.1 of ...
Ronald Bourret
rpbourret@...
Aug 3, 2001 7:58 am
1343
A two-pass architecture isn't necessary. The current code does this in a single pass. Looking at (for example) the <SalesOrder> element, here's roughly what...
Ronald Bourret
rpbourret@...
Aug 3, 2001 9:55 am
1344
Hi, If I would like to query the DTD to grab data from the database, how would this be possible? Note that the names and structures in the DTD correspond to...
Tai Tran
txtran2001@...
Aug 6, 2001 12:41 am
1345
Sorry to take so long answering. This is a bug in Transfer, in which the "Key" keyword is not recognized. You can work around this by using the "Key1" keyword...
Ronald Bourret
rpbourret@...
Aug 7, 2001 6:08 am
1346
... I assume what you mean is that you want to look at the DTD, then build a query based on the DTD. Is that correct? If so, XML-DBMS does not support this. ...
Ronald Bourret
rpbourret@...
Aug 7, 2001 6:16 am
1347
hi Ron, 1) I want to know about Turbo XML. what is that all about? 2) How to connect to database through XML file? regards Subbu ...
Vadaga Subramanyam
cooollibran@...
Aug 7, 2001 7:10 am
1348
... Turbo XML is what XML Authority (from Tibco/Extensibility) evolved into. It provides the following features: 1) Schema editing and conversion 2)...
Ronald Bourret
rpbourret@...
Aug 7, 2001 7:28 am
1349
IS there an XML solution to this problem? Flexible Scheme Evolution in Relational Database Model ... respective ... convenient ... for ... frequent evolution...
ravi saxena
talbronstien@...
Aug 7, 2001 3:13 pm
1350
XML Database has a index system as relationship database , and how to implement it ? YG 2001/8/8...
Tedd
YGPAN@...
Aug 8, 2001 7:07 am
1351
Native XML databases support support schema evolution to some extent. In particular, stored documents are not required to match any schema at all. Thus, you...
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