BaseX-Talk August 2012

basex-talk@mailman.uni-konstanz.de

35 participants
42 discussions

MAXCATS improvement
by Fabrice Etanchaud 19 Aug '12

19 Aug '12

Dear all at BaseX, I 'm working on a big database (more than 100 Go) containing several millions of articles, identified by a unique element. I frequently iterate on the identifiers list, each time I have to compute distinct-values(//myidentifier) in order to build that list. Could it help to set MAXCATS to 2 000 000 or 3 000 000 before creating the database ? I cannot try it, because text index generation throws a heap overflow. Could it be possible to improve the MAXCATS option in order to set a individual MAXCATS value for a specified element or attribute ? Finally, is there a way to complete the text index generation (Xmx is already set to maximum) ? Best regards, Fabrice ETANCHAUD Senior Software Engineer edital Berkenlaan 1 B-1831 Brussels, Belgium <skype:fabrice.etanchaud?call> +32 2 716 32 32 general +32 2 716 32 20 fax fetanchaud(a)edital.com corsearch.com <http://www.corsearch.com/> | edital.com <http://www.edital.com/> <outbind://899-00000000E439C83B50BF17409D8C27B7AE0425AF07005AA868536216F 543BAB9422EAEA5338B00000011020900005AA868536216F543BAB9422EAEA5338B00000 13AA36B0000/cid:image001.gif@01CC0F02.2C91B6C0> Confidentiality Notice: This email and its attachments (if any) contain confidential information of the sender. The information is intended only for the use by the direct addressees of the original sender of this email. If you are not an intended recipient of the original sender (or responsible for delivering the message to such person), you are hereby notified that any review, disclosure, copying, distribution or the taking of any action in reliance of the contents of and attachments to this email is strictly prohibited. If you have received this email in error, please immediately notify the sender at the address shown herein and permanently delete any copies of this email (digital or paper) in your possession.

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by Academic Proofreading Services 18 Aug '12

18 Aug '12

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restxq
by Andy Bunce 18 Aug '12

18 Aug '12

Hi, I am a great fan of RESTXQ, however there seems to be a security concern with the current BaseX implementation when used without additional layers to top. This is that the source code is available for anyone to view. E.g. with the standard installation http://localhost:8984/restxq/ is the restxq demo but http://localhost:8984/restxq.xqm reveals the source. I have pondered small changes to the implementation that would address this, e.g maybe the RESTXQ code could go in WEB-INF folders or similar. Regards /Andy > > Message: 1 > Date: Fri, 17 Aug 2012 14:26:12 -0400 > From: Colin McEnearney <colinmcenearney(a)gmail.com> > To: basex-talk(a)mailman.uni-konstanz.de > Subject: [basex-talk] restxq > Message-ID: > <CAPh7s+KPgb95fFRxGdyKUaKcv= > pkV5LVhjUOR+EVOiqQmK2oWw(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > This is a newbie email. > > I've been using basex for some time for its xquery engine (which is > awesome) but never in production or for web development. I have some small > projects coming up and looking at it for the db side of a web app I just > noticed RESTXQ - looks really cool! > > I'm not really a developer but I use xquery every day at work and so would > love to use it - exclusively if possible. Does restxq mean that you can > serve a site with no client (php, ruby, etc) in between the db and the > html? > > basex <-> html > > That would be so simple and fun, and quite useful for a blog or other > not-too-huge type of thing. > > Or is that totally crazy for security reasons? > > > Colin >

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Re: [basex-talk] feed additive,soya lecithin
by tjboshuai_bella 17 Aug '12

17 Aug '12

Dear Sirs, Glad to know your company,We are a specialized Chinese manufacturer of soybean lecithin more than 10 years. Our website: www.tjboshuai.com for your reference. Application: 1.used in the food as food additive,worked as emulsifier release agent and so on,widely used in the chocolate,ice cone,milk,biscuits,confectionary ; 2.used in the animal feed as feed additive,to prove the animal feed's quality and enhance the nutrition of the feeds; we have different grade ,type product ,which one do you want to use?food grade or feed grade?some information for your reference. We highly appreciate your email and sincerely hope we can get further cooperation.have a good week Bella Company name:Tianjin Boshuai Industrial & Trading Co.,Ltd Website:www.tjboshuai.com Phone:022-27915570 022-27396299 Fax:022-27920127 Email: tjboshuai_bella(a)yahoo.com.cn MSN: tjboshuai_bella(a)hotmail.com tjboshuai_bella

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Table visualization of xquery results
by Rob Heiser 16 Aug '12

16 Aug '12

I'm using BaseXGUI to develop xqueries. The xqueries transform some data from the database into XML that will be rendered as a table. Will the table visualization view in BasexGUI work this way? My xqueries look something like this: let $dbName := "foo" return <table> <columns> <column>Name</column> <column>Child name</column> </columns> <rows> { for $item in doc($dbname)/some/xpath return <row> <cell>{$item/name/text()}</cell> <cell>{$item/child/name/text()}</cell> </row> } </rows> </table> The text view of the results look like I expect it to, and using the xqueries inside the application I'm developing works once I get them written and debugged. I'd like to preview the tables inside BaseXGUI if possible, before returning to the IDE and having to run the application, if possible. Thanks for any guidance. -- Rob

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BaseX performances with many users and many files
by Yoann Maingon 16 Aug '12

16 Aug '12

Hi, We are building a solution that is actually using baseX, you can get a brief description there : http://launch.mysimplegrid.com/ The prototype works ok today for a few users. It is basically a spreadsheet UI storing its data in BaseX using the PHP library. Our question today is about this database use. For each spreadsheet we create a database in basex which means if we have a thousand users with 20 spreadsheets each, it makes a total of 20 thousand database in basex. where each one is access by one or a few users (not simulteanously). Would it be better to create just one database containing all the spreadsheets but access by the 1000 users? I'm looking for some information about concurrent performance and the utility of having multiple database or just one database for all? The other option would be to store just xml as text in mysql but It's really handy to work with basex and it allows us to update single nodes when to do that with mysql I would have to save the whole xml everytime. -- Yoann Maingon mydatalinx 0664324966

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BaseX and eXist XML database differences
by mailbox＠actamail.com 16 Aug '12

16 Aug '12

Can anyone help me in telling the differences of BaseX and eXist XML databases? I am looking for a native XML database to use for my web content management system and homepage.

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xslt:transform, spaces and mixed content
by France Baril 14 Aug '12

14 Aug '12

Hi, I have an issue with spaces in mixed content, when applying the xslt:transform command. I have been working around it for months with a hack in my css that puts the spaces back as   on inline elements, yet I still haven't run upon a clue to help me resolve this for good the clean way. IN SUMMARY - The xslt applied to my xml outside the BaseX environment (Oxygen + Saxon) gets me right html content (with spaces for inline elements in mixed content) - The query, when it returns the XML file from BaseX, shows that the XML file still has its spaces. - When the xslt is applied to the XML file from BaseX (Using Saxon), with the BaseX XSLT module, spaces disappear around inline elements in mixed content. IN DETAILS I have mixed content in a file. Ex. <p>Text <i>italic</i> more text.</p>. I have this function:; declare %rest:path("/how2-html-topic/{$id}/{$menu-id}") %rest:GET function topic:html-get-how2-topic($id as xs:string, $menu-id as xs:string) as node()*{ let $x := topic:xml-get-how2-topic($id) let $params := map{ "menucontext" := $menu-id} let $stylesheet := doc(concat($app:xslt_html_topic, 't')) return xslt:transform($x, $stylesheet, $params) }; My access a web page runs this query. Result (lost spaces): <p>Text<i>italic</i>more text.</p> - Note: The content has been uploaded with chop spaces = false - The xquery module specifies: declare boundary-space preserve; declare option db:chop 'no' If I get the same content without applying the xslt:transform, I get the xml with all the right spaces: declare %rest:path("/how2-html-topic/{$id}/{$menu-id}") %rest:GET function topic:html-get-how2-topic($id as xs:string, $menu-id as xs:string) as node()*{ let $x := topic:xml-get-how2-topic($id) let $params := map{ "menucontext" := $menu-id} let $stylesheet := doc(concat($app:xslt_html_topic, 't')) (: return xslt:transform($x, $stylesheet, $params) :) return $x }; Maybe I am missing some config details for the xslt module, in BaseX? In XLST? My xslt sets the output as follow: <xsl:output indent="yes" method="xml" encoding="UTF-8"/> Regards, France -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com (514) 572-0341

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validare:dtd
by France Baril 13 Aug '12

13 Aug '12

Hi, This is probably more a suggestion than a question. I am building a restxq application, and when the DTD is modified, I want to run validation all existing content. let $db := app:open-db($lang) let $topic-validation := <ul>{for $x in $db/*[name()='topic' or name()= 'media'] return try {validate:dtd($x, $app:dtd-topic) } catch BXVA0001 { <li>File $x/base-uri() doesn't validate.</li> } } </ul> return $topic-validation When everything works fine, when the content validates against the dtd, I get an empty <ul/> as expected. However, if there is an error, the whole process stops, returns an error on the html page that indicates what the error is (but with the wrong filename(??)). Note that the filename changes everytime I run the process). - I would like to be able to catch errors, accumulate error messages and return them la instead of having the process stop at the first error. - Filename is probably a bug(??). I am running v7.4 Regards, France -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com (514) 572-0341

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Hawthorn Extract
by Export Dept 11 Aug '12

11 Aug '12

Dear Sir/Madam. Have a good day. We are Shaanxi king stone enterprise company limited is a major company engaged in plant extract industry. It is loactaed in middle of China. We own our plant to produce plant extract for health products use. This time we especially recommend our "Hawthorn Extract" to you. and now we have goods in stock as followings: | Hawthorn Extract | | Botanical Source: | Fructus Crataegi | | Appearance | Yellow brown powder | | CAS | 36052-37-6 | | Specification: | Flavone :10%～80%，10：1 | | Test Method | UV HPLC | | Function | | 1) Dilating coronary artery, improving myocardial blood and decreasing myocardium oxygen consumption, thus preventing ischemic heart disease | | 2) Inhibiting thyroid peroxidase, anticancer and antibacterial | | 3) Decreasing blood lipid, inhibiting platelet aggregation and spasmolysis | | 4) Scavenging free radicals and enhancing the immunity | We can provide sample for new client. We own our new special patent to produce the product, So the cost and quality is competitive compared with other suppliers. Please contace me If you interested our products. Your further comments will be highly appreciated. Shaanxi king stone enterprise company limited Fax:86-29-88353140 ; Tel:86-29-88353805 E-Mail:export@king-stone.co http://www.king-stone.co

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BaseX-Talk August 2012