- users-list - monetdb.org

Re: [MonetDB-users] About Static Type Analysis for XQuery in MonetDB/XQuery
by Stefan Manegold 28 Nov '06

28 Nov '06

Dear Selina, Wang Zhen, thank you very much for your interest in MonetDB/XQuery. Assuming that your question can best be answered by our colleagues in Munich that take care of the Pathfinder XQuery to relational algebra compiler (cf., http://www.pathfinder-xquery.org/) I feel free to forward your email to the MonetDB-users list at SourceForge. Kind regards, Stefan On Tue, Nov 14, 2006 at 07:49:39PM +0800, Wang Zhen (Selina) wrote: > To Who It may Concern: > > I am conducting an XQuery implementation survey for my thesis study, and > find your MonetDB/XQuery link from W3C website. > > I'm very interested in MonetDB/XQuery, yet I still got some questions > and may need your help: > > 1. I found on your website that, MonetDB/XQuery "adheres to all the > typing rules prescribed in the W3C standard". > I would like to know which version do you support currently? > > 2. Are those typing rules encoded in MonetDB/XQuery? If so, since the > W3C standard is still changing, how do you keep up with > the change efficiently? > > Thank you. > Selina, Wang Zhen -- | Dr. Stefan Manegold | mailto:Stefan.Manegold@cwi.nl | | CWI, P.O.Box 94079 | http://www.cwi.nl/~manegold/ | | 1090 GB Amsterdam | Tel.: +31 (20) 592-4212 | | The Netherlands | Fax : +31 (20) 592-4312 |

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[MonetDB-users] Next Big market Winner!
by Jazz singer 28 Nov '06

28 Nov '06

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by Free Blogs 25 Nov '06

25 Nov '06

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by work 23 Nov '06

23 Nov '06

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Re: [MonetDB-users] Using MonetDB / XQuery with PHP
by Menno Holtkamp 23 Nov '06

23 Nov '06

Hi Fabian, performing SQL and MIL queries succeeds using PHP. Not concerning XQuery. Connecting with: $db = monetdb_connect('xquery'); if (!$db) { die('Could not connect with MonetDB/XQuery server'); } echo 'Connected successfully'; succeeds. Performing a query with: $query = 'count(doc("HelloWorld.xml")/doc)'; $result = monetdb_query($query); if(!$result)die("Query failed : " . monetdb_error() ."\n"); else echo '<br>Performed query'; succeeds as well. But the content of the result set seems to remain 'empty'. print_r($result) -> Resource id #3 But while($row = monetdb_fetch_array($result)) { print_r($row); } remains empty. Does somebody have a working example of performing an XQuery using PHP? I wondered, is it required to connect to a specific database in the monetdb_connect command? (the XML-document) I think not, but hey! With kind regards, -----Original Message----- From: Fabian Groffen [mailto:Fabian.Groffen@cwi.nl] Sent: Wed 11/22/2006 1:08 PM To: monetdb-users(a)lists.sourceforge.net Cc: Subject: Re: [MonetDB-users] Using MonetDB / XQuery with PHP Hi Menno, Thanks for considering MonetDB. The php_monetdb module can speak all languages that are supported by mapi: mil, mal, sql and xquery. I never used PEAR, but always used the monetdb_xxx functions directly. The monetdb_connect() function accepts a language to use, which can be one of the few mentioned above. Unfortunately the documentation as on the web is outdated in this respect. From the example monetdb_query_demo.php http://monetdb.cvs.sourceforge.net/monetdb/MonetDB/src/mapi/clients/php/Cim… it shows that the language has to be given as first argument to the monetdb_connect() function. As from the function documenation: proto resource monetdb_connect([string language [, string host [, string port [, string username [, string port [, string database [, int connect_type]]]]]]]) I hope this helps/clears up a bit. Feel free to ask. On 22-11-2006 11:56:40 +0100, Menno Holtkamp wrote: > Dear MonetDB Team, > We are currently checking the MonetDB/XQuery distribution for use in > several governmental and research projects. We have succesfully > installed the MonetDB/XQuery server and are able to perform some > example queries by loading some .xq files with the MapiClient. > By using the php_monetdb.dll which came along with the MonetDB/SQL > server, we were able to perform some SQL queries on that database. But > now we want to perform MIL queries on the MonetDB/XQuery server. > I assume the used/ripped MAPI dll (version 1.0) does not support the > MIL language, in essence, I am not able to configure the php.ini to > accept: > monetdb.default_language = mil > On the website, the only thing mentioned about a windows installation > of the MAPI for PHP is > (http://monetdb.cwi.nl/TechDocs/APIs/PEARDB/index.html) > For windows setups the story is a little bit more complex. TODO > Can you explain how to install / acquire the proper dynamically > loadable php module php_monetdb.dll which supports MIL and with which > we can query our XML data? > With kind regards, > Menno Holtkamp ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ MonetDB-users mailing list MonetDB-users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-users

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[MonetDB-users] Using MonetDB / XQuery with PHP
by Menno Holtkamp 22 Nov '06

22 Nov '06

Dear MonetDB Team, We are currently checking the MonetDB/XQuery distribution for use in several governmental and research projects. We have succesfully installed the MonetDB/XQuery server and are able to perform some example queries by loading some .xq files with the MapiClient. By using the php_monetdb.dll which came along with the MonetDB/SQL server, we were able to perform some SQL queries on that database. But now we want to perform MIL queries on the MonetDB/XQuery server. I assume the used/ripped MAPI dll (version 1.0) does not support the MIL language, in essence, I am not able to configure the php.ini to accept: monetdb.default_language = mil On the website, the only thing mentioned about a windows installation of the MAPI for PHP is (http://monetdb.cwi.nl/TechDocs/APIs/PEARDB/index.html) For windows setups the story is a little bit more complex. TODO Can you explain how to install / acquire the proper dynamically loadable php module php_monetdb.dll which supports MIL and with which we can query our XML data? With kind regards, Menno Holtkamp Technical consultant Vergunningen Advies Overheid.nl Wilhelmina van Pruisenweg 104, 2595 AN Den Haag Postbus 84011, 2508 AA Den Haag

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by clarified 21 Nov '06

21 Nov '06

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[MonetDB-users] SportsPrep
by Us Pay 21 Nov '06

21 Nov '06

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[MonetDB-users] Large transactions or large updates
by Ronald Oussoren 21 Nov '06

21 Nov '06

Hi, I'm having a problem with my program and monetsqldb. I have a script that loads files with datasets into the database. Every dataset is loaded with a (large) number of insert statements in a single transaction (al records are inserted into the same table) My problem is that this doesn't work, the first 50 to 60 thousand inserts go well, after which the next insert statement fails. I'm using a python script to do that, and sadly enough the failure reason is empty (that is RuntimeError is raised with None as the mesage). I dont' get an exception when I redo the failed insert in the interactive console, Another datapoint: most of the time the monet server crashes, either at the same time as or shortly after the failing insert statement. Crashing as in giving a segmentation fault. The database schema is rather trivial: a single table with about 8 columns, one of which is a BLOB of 10 to 50 KBytes, and another field that is an autoincrement field. There is a a second table to keep track of which datasets have been loaded. BTW. The transaction seems to be a red herring, I also get failures when each insert is done in its own transaction. Does anyone have a clue as to what might be wrong here? Ronald

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[MonetDB-users] contest
by classics deserves 20 Nov '06

20 Nov '06

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