InterSystems Caché is a multi-model DBMS and application server
Hi, I am trying to understand the transformational methods.
I have created a small class with the only property of List as %List, see below.
{
Property List As %List;
}
Then I entered the following commands in the Terminal
The data type %Char or %Library.Char
The description says it is a fixed length character field.
How do I set the fixed length?
Or by just setting %Char to something, does that automatically define its length?
Are the parameters MINLEN, MAXLEN involved? Or are these the way I set the fixed length?
Any help with this?
Some time back I was facing a quite motivating experience.
Business area: Web analysis
Subject: Build a DB on Webpages and link them with their referencing pages + other attributes as ref_count, ...
Condition: uniqueness of the pages (source + ref)
Target: Load + link/index 500 mio page pairs of source:target web links
HW/OS: 64 GB RAM, 16 Processors, a bunch of lousy raid 5 disk, Red Hat
While using custom business service i'm not getting the Acknowledgement . But i tried with standard business service im getting acknowledgement . can you please help me to figure out the issue. Thanks in advance!!!
Hi, folks!
There is an interesting discussion in the neighboring topic which raises a question for me: is there any reason to have %Status as a return value for COS method?
I have a Caché server with external apache.
It has a hostname, i.e.: http://myserver.com
There is an index page, which is available over http://myserver.com/index.html (/ is a Caché CSP app)
How can I make index.html available from http://myserver.com?
Here's the relevant parts of my apache config:
Developing a Full-Stack JavaScript web app with Caché requires you to bring together the right building blocks. Previously, I outlined the basic steps to install and connect Node.js to Caché and make it's powerful multi-model database capabilites available for use with Node.js. You can use Caché as a NoSQL-, document- (with unique key-level access!), SQL- and object-database with Node.js. When developing JavaScript applications, you'll see how powerful this combination is and makes Caché a perfect fit for Node.js.
In the first part of this article series I will show how to get started with the React framework, one of the most popular frameworks currently taking over front-end development. In the next parts you'll learn how to connect a basic web app to a Caché back-end.
You'll see, it's very easy to get started with this technology - you can even compare the amount of basic knowledge you need to COS because you only need to know a few basic concepts to start!
In this short article we talk about how to get Yape running in a docker container to avoid having to setup python on your machine.
It's been a while since the last article in this series, so let's recap quickly.
GIS stands for Geographic Information System.
and it's not a typical arena for Caché. But it's definitely an environment with high data volume.
You see 3 major areas
- Visual front end:
A mature area well covered by a bunch of commercial and open source products.
No need for Caché there.
I don't know what a problem with my cache cube terminal, but cyrillic text is not displayed correctly.
I have some terminal program with cyrillic menus, dialogs and other text and all those items are displayed wrong (unknown symbols like on the image).
How can I solve this problem?
Hi,
I learning Cache Rest Services and I trying to implement it.
I learned get method in rest services.
I need to know How to get raw data (like json, xml, text....etc.) when we post the rest services?
Thank you
Hi, colleagues!
Consider you need to put some (less than 1GB) data to an indexed array and do some data manipulations and calculations with it.
Should I prefer global or local for it?
Is there any general rule when local is faster than global and vice-versa?
In reviewing the documentation found here, it states that there is an Attributes property. Since this is an array, I was wondering how I would go about traversing through the array to review what attributes are available on the file.
I am running a ZBREAK trace on a legacy FDBMS application that uses arrays but rather than displaying the array value contents, I am seeing logs similar to the following.
Trace: ZBREAK SET LINE=Array Val at BIOPWR+6^BIOPWR
My ZBREAK trace settings are as follows:
Hi community,
I have some constants hardcoded in my class as parameter values, and those constants are referenced in many places in my module. Now the need has arisen to provide different value for those parameters depending on some context. Is it possible to create some sort of accessor method for the parameter (like it is possible for properties), or do I need to perform a thorough refactoring?
Thanks.
Jiri
How could I log out from Cache terminal (connected through csession) and back to the system shell?
Thanks.
Any one can suggest, to write the event log to the text file. Its kind of a alerting. Already a service for alerting is there via email. Same concept to do the log to text file.
Have very little XML experience and have been able to manually create output. Have a need to take data that I store in a M global (example: ^TML("HDATA", ) and out put it in CCDA XML format.
Are there any examples of M code using the XMLWriter to accomplish this?
Or can anyone provide some guidance
Any help would be greatly appreciated.
Hi,
How can I read the stack of another process?
I know about ^JOBEXAM, but I only know how to use through terminal, and I need to get a string, or at least do a method that returns me a string
For example:
I have process A and B
B monitors process A at each second.
B logs information about process A in a table
Informations about lock I get through %SYS.LockQuery and the process through %SYS.Process
Hello,
I need support for my case!!
I have 18 GB health care cache Database i face delay with filter and transmit data around 20 - 45 Minutes, I need solution to fixed my issue.
I did Rebuild indexes & Tune Table .
Thanks,
Hi,
I'm trying to use WebSocket for my application. I am trying to get the example in this link (http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=...) to work. However, I keep getting the error "CSP application closed the connection before sending a complete response". Does anyone know why?
Good day,
I would like to know how to detect in Caché ObjectScript if data saved in string is number and furthermore, if it's type is integer.
I maybe found a solution:
set value = "44.2d3"
try{
set status = $INUMBER(value,"")
if ('$FIND(+value,".")){
w "your variable: '"_value_"' is number and integer"
}else{
w "variable is number but no integer"
}
}catch(e){
w "variable is not number"
}
Hi, I would like to read a row out of an external SQL table and reference the returned results directly from my cache class. I've set up a link table and a SQL gateway connection. but I'm not real sure how to use them in COS. Anyone have examples out there, or some assistance? Thank you.
Hello fellow developers,
I am currently in need of a way to serve files dynamically (sending specific replacements for when the requested file doesn't exist, possibly depending on other conditions such as passed parameters).
Hi, folks!
Suppose I have a CSP app, which provides some service.
And the code of my App knows the name of the CSP App in form: /myappname
How can I programmatically obtain the URL for CSP apps to send the full qualified link to the users(e.g. via email) of my app?
E.g. https://productionserver.com/myappname
hi
I execute sql like this: select * from DHC_PatBillDetails where PBD_PBO_ParRef>='2046121'
error message:
but the sql: select * from DHC_PatBillDetails where PBD_PBO_ParRef='2046121' can be executed successfully
why?
