#Caché

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InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

Announcement Bill McCormick · Feb 1, 2016

Attached to this post is a PDF document outlining some of the key enhancements included with 2016.2. I will be giving a WebEx session that is open to all tomorrow at 11 AM EST. Once the WebEx is over I will be adding a link to the recording for those who cannot attend.

2016.2 Field Test Launch
Tuesday, February 2, 2016
11:00 am  |  Eastern Standard Time (New York, GMT-05:00)  |  30 mins
 
Meeting number:    747 673 229

Join!

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Article Alexander Koblov · Jan 29, 2016 9m read

The object and relational data models of the Caché database support three types of indexes, which are standard, bitmap, and bitslice. In addition to these three native types, developers can declare their own custom types of indexes and use them in any classes since version 2013.1. For example, iFind text indexes use that mechanism.

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Question Benjamin De Boe · Jan 28, 2016

Is there a possibility to map a CSP page residing in namespace ABC to a namespace XYZ so you could access it as if executing from XYZ: http://localhost:57772/csp/xyz/MyPage.csp ? Some odd cocktail of web application and package mappings that could make this happen?

The idea is to keep the CSP page in sort of a read-only namespace that only contains code, with the data residing in another namespace. This works for zen pages, but not for CSP.

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Article Stefan Wittmann · Jan 29, 2016 1m read

Oracle plans to deprecate the much-maligned Java browser plugin in JDK 9. For years, the bundled plugin put users at risk with its numerous security flaws. The web is clearly moving to a plugin-free state, which is a good direction.

If you are relying on the Java browser plugin, you should take a look at Java Web Start.

Here is the official blog post by Oracle:

https://blogs.oracle.com/java-platform-group/entry/moving_to_a_plugin_free

Stefan

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Announcement John Murray · Jan 21, 2016

Announcing Deltanji 6.0, the latest version of the well-respected George James Software source control product formerly known as VC/m.

Deltanji comes in four editions, including Solo which is quick to install on Caché or Ensemble (2009.1 or later), easy to get started with, and perpetually free.

Deltanji runs within the environment whose code it is managing, integrating closely with Studio and Portal, and storing code versions in a CACHE.DAT database.

Please visit http://georgejames.com/deltanji to learn more and download the software.

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Question Steve Shaw · Jan 21, 2016

Hi,

I'm trying to create a Zen Report that, when rendered to PDF has a header on every page that includes some items from the group that I'm iterating over in the <body>.  I can't use <header> as that only displays once for each iteration, even if that spans more than one page, but <pageheader> seems to be independent of <body> so again doesn't work.

 

Cheers,

Steve.

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Question Chris Stewart · Jan 20, 2016

Hi



I'm starting to play around with dynamically creating tabs and panes from query data, and was trying to do the following, with nested tabs.

Tab Group

High level tabs

Sub Tab Group

Sub tabs from the High level tabs.



So I have built up my page with a placeholder top level tab group, then creating and added child tabs to this, then from this level, I have created a new Tab Group programatically, and programmatically added tabs to this new group.  However, all I am getting is the top level of tabs, with all of the leaf data concatenated under it.

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Question Pravin Barton · Jan 20, 2016

I'd like to have an array as a parameter for a SQL 'WHERE... IN' statement. The array would be modified in javascript on the browser. Here's a simplified example:

<tablePane  width="25%" id="testTable" sql="SELECT Id from Tracking_Data.Person WHERE Id IN (?)" showQuery="true">

<parameter/>

</tablePane>

<button caption="Test" onclick="zenThis.composite.testTestTable();"/>

ClientMethod testTestTable() [ Language = javascript ]

{

  var table zenThis.composite.getChildById("testTable");

  tabl

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Question Fabio Goncalves · Jan 14, 2016

Is it possible to override JQuery Mobile elements´styles (buttons, lists, font size, color, etc) or an existing  theme with a separate custom css file?

I am really interested in an official or elegant way to do it.

Thanks.

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Question Scott Beeson · Jan 13, 2016

New to CSP and Zen.  I've been going through tutorials and have made some progress.  Using the "Contacts" tutorial as an example, I'm trying to create a "ViewContact" page.  I want this to be linkable so I'm using URI Parameters, which I understand.  However, what I'm not sure about is how to retrieve a specific record.  Should I use a SQL statement?  If so, how?

Let's say I just wanted to display the property "Name" for the contact with ID 12.  What would be the best way to do so?

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Question Scott Beeson · Jan 13, 2016

I created a Zen page with a header. All is good. I then created a new Zen page and during the wizard specified that it was a "subclass of a template page". So now I have Class Custom.App.HomePage Extends Custom.App.TemplateMaster. If I visit HomePage.cls I see the header from the template. However, the HomePage class has no XData Contents section so I have no idea how to actually add content. I tried adding the section but once I do then I don't see the template content anymore.

So, how do I put content in a page that extends another page as a template?

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Article Simon Bijl · Jan 12, 2016 9m read
Is there someone that has developped a program in order to create a 
"decisiontree"? Depending The answer to a question leads to another question, and so on, 
and so on, and there is an option to return to another point in the decisiontree.

Best regards,

Simon.

p.s. I've already got something, but it's not workable. But to get an idea:

Global Data weergeven

 
 


1:  ^DECISIONTREE(0) = "Heeft betrekking op|vraag"
2:  ^DECISIONTREE(0,0) = "Schoonmaak|
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Article Mark Bolinsky · Jan 7, 2016 1m read

Often times support and sales engineers are asked about recent benchmark results on various platforms and large scale configurations.  These will be made available here in the Developer Community in the "Documentation" section, and as an example here's a link to a recent Intel E7 v2 series processor benchmark.

https://community.intersystems.com/documentation/data-scalability-intersystems-caché-and-intel-processors-0

There are several reports available and more will be made available on an on-going basis.

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Article Stefan Wittmann · Jan 6, 2016 1m read

You may have missed the news that support for older version of Internet Explorer ends next week Tuesday, January 12th. The original blog post from Microsoft can be found here:

https://www.microsoft.com/en-us/WindowsForBusiness/End-of-IE-support

A patch will go live next week Tuesday, that will nag users of older IE versions to upgrade to a recent version. The patch is identified as KB3123303. You can find more information about this patch here:

https://support.microsoft.com/en-us/kb/3123303?sd=rss&spid=14019

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Question Fabio Goncalves · Dec 17, 2015

I am trying to define the charset for a JQM Application and it is not working. I have tried the following options without success:

Method %OnDrawHTMLMeta() As %Status
{
              Write "<meta name=""viewport"" content=""width=device-width, initial-scale=1.0,maximum-scale=1, user-scalable=no""/>"
              Write "<meta http-equiv=Content-Type content=text/html; charset=utf-8 />"
              Quit $$$OK
}
Method %OnDrawHTMLMeta() As %Status
{
              Write "<meta name=""viewport"" content=""width=device-width, initial-scale=1.
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Question Steven LeBlanc · Dec 17, 2015

Hi,

Is there any API equivalent (within Config.Databases class, or elsewhere) that has the same functionality as the 'Recreate a database' option in the ^DATABASE routine?

This option was added to ^DATABASE (according to internal Devlog CFL1263):

to recreate a database which is equivalent to deleting the .DAT file and recreating it.

I tested this, and the recreate option also appears to also preserve the original database parameters (e.g. max size, resource name).

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Question Derek Day · Dec 15, 2015

Is there a way to select distinct keys from an field that has a collection index? I have a field defined as follows: Property data As %Library.String(COLLATION = "EXACT", MAXLEN = "", TRUNCATE = 0); Index data On data(KEYS) [ Type = bitmap ]; And I define a build value array method that parses my data outputs an array in the format array(KEYS)=VALUES. This is very useful because I can query my data using criteria such as  WHERE FOR SOME %ELEMENT(data) (%KEY='param') My question is whether there is some way to select distinct key values, e.g. SELECT DISTINCT KEYS____ FROM ____ .

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Question Fabio Goncalves · Dec 14, 2015

Hi All,

I am trying to disable a button on a JQM application.

I started the button as disabled according to this code: {type:'$button',caption: Button',key:'button',disabled:true}

However, I would like to enable or disable the button via JavaScript code . I have tried the following, but it don´t have the same behavior and style as the code above.  

var view = zen('mainView');
              view.

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Question Derek Day · Dec 8, 2015

There seems to be little point to journal audit db updates; why rollback an audit entry for an attempted update?

I’m working on some auditing code and I have a few questions (feel free to respond regarding 2016.1 or later).

  1. I’ve noticed that there is little point of journaling updates to an audit database, as the Audit log is essentially an additional journal. Is there any reason not to disable journaling for audit log updates?
  2. I’d like to audit even transactions that get rolled back, preferably with information that the rollback occurred (this could be a second audit entry).
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Question Ben Spead · Nov 20, 2015

I am using &html<> to output some CSS to my page (which is a class-based and not a tag-based page), and the selectors contain the '>' character which the compiler chokes on.  How can I escape the '>' so it still displays as such in the web page source but doesn't trip up the compiler?

This is for 2012.2 btw.

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Question Chip Gore · Nov 11, 2015

Hi -

If you have Cache installed on a Cent OS machine, and you want to switch the OS to Red Hat 7, and your Caché is installed on a non-OS drive, do you need to reinstall Caché?

I don't think so, but I wanted to check

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Article Brendan Bannon · Nov 9, 2015 1m read

The attached zip file contains a bunch of examples of Cache SQL Storage mappings that I have done over the years.

If you have existing globals and want to expose them via Objects or SQL you need to setup Cache SQL Storage mapping.  If you do not see an example that helps with your case send me an example and I can help you out.

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Article Daniel Kutac · Nov 9, 2015 3m read

Tip dvacátý šestý: objekty a concurrency 2 - swizzling

Když tento seriál před několika lety začínal, byl jeho první díl věnován zajištění izolace instance objektů pro exkluzivní přístup a popisu příslušných API funkcí. Nedávno se mi ale stalo, že mě tento díl dostihl. Jeden ze zákazníků začal mít problémy v aplikaci, přestože důsledně používal exkluzivní zámky pro editování instancí svých objektů.

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Article Developer Community Admin · Oct 21, 2015 1m read

Introduction

In today's world, an ever-increasing number of purchases and payments are being made by credit card. Although merchants and service providers who accept credit cards have an obligation to protect customers' sensitive information, the software solutions they use may not support "best practices" for securing credit card information. To help combat this issue, a security standard for credit card information has been developed and is being widely adopted.The Payment Card Industry (PCI) Data Security Standard (DSS) is a set of guidelines for securely handling credit card information.

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Article Developer Community Admin · Oct 21, 2015 1m read

InterSystems encourages the adoption of a flexible, practical approach to application development, rather than strict adherence to one of the prevalent development theories. This paper offers advice based upon our experience. However needs, attitudes, and styles vary; we recommend that each programmer choose the development approach that works best for them. Caché supports a wide range of development methodologies, not just those recommended here.

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Article Developer Community Admin · Oct 21, 2015 1m read

Using Intel® Advanced Encryption Standard New Instructions with InterSystems Caché Substantially Improves Encryption Performance and Reduces Computational Overhead

Executive Summary

Financial services companies have an ever-growing need to encrypt databases containing sensitive customer and trade data. However, using encryption on these databases can require significant computational resources, potentially impacting trading latencies.

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Article Developer Community Admin · Oct 21, 2015 1m read

Executive Summary

The best way to compare the performance of database products is in a head-to-head test using a real application, preferably one of your own. This is especially true when evaluating Caché's post-relational technology, because "standard" transaction processing benchmarking methodologies assume the restrictive "row and columns" format of a relational database. They cannot accurately predict the performance of real applications, which often use complex data models.

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Article Developer Community Admin · Oct 21, 2015 1m read

Abstract

The European Space Agency (ESA) has chosen InterSystems Caché as the database technology for the AGIS astrometric solution that will be used to analyze the celestial data captured by the Gaia satellite.

The Gaia mission is to create an accurate phase-map of about a billion celestial objects. During the mission, the AGIS solution will iteratively refine the accuracy of Gaia's spatial observations, ultimately achieving accuracies that are on the order of 20 microarcseconds.

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Article Developer Community Admin · Oct 21, 2015 1m read

Abstract

A benchmark of a real-world application, which loads data into a data warehouse for subsequent analysis, was performed. To conduct the benchmark, one module of the Oracle-based application was replicated in Caché ObjectScript. Only about 40 person-hours of work was required to duplicate the functionality of the original module in Caché.

The time required to complete certain tasks was measured running the Caché-based module, and was compared to existing data.

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