Hi Community!

We try a new approach to the InterSystems Developers YouTube Videos called "Coding Talks"!

Coding Talks is a short video in which the developer demonstrates a particular feature or functionality of InterSystems Data Platforms which he/she uses to in coding. Typical format: the face on side and editor with ObjectScript.

Check this video I made by myself participating in Advent of Code 2018 and coding with InterSystems ObjectScript in VSCode.

Coding Advent of Code 2018 Using InterSystems ObjectScript 

I have a simple callout library:

#define ZF_DLL
#include 
#include 
#undef ERROR

int GetRandom(double* random) {
   // Py_Initialize();
   // Py_Finalize();
   *random = 1.0;
   return ZF_SUCCESS;
}

int main(int argc, char **argv)
{
   printf("Random: ");
   double random=0;
   GetRandom(&random);
   printf("%lf", random);
   return 0;
}

ZFBEGIN
    ZFENTRY("GetRandom","D",GetRandom)
ZFEND

I compile this code as a shared library and it works fine with:

set path = "library.dll"
write $ZF(-3, path, "GetRandom")

It also compiles and works as an executable.

Hello.

I have a delimited flat file that I need to read and then generate an HL7 A08 message from the fields in the file.  I used the Management Portal's Record Mapper to generate the Map.Record class, then used drag & drop to map fields in the delimited flat-file to an A08 message.

But when I try testing this in the test tool, I'm getting an ERROR #6254: Tag expected . XML input. ... is not in proper format as child of Record (ending at line 2 character 11).

I can't find any real information on the error other than a mention that 6254 is an error :-)

Suggestions,

Not everyone knows that InterSystems Caché has a built-in tool for code profiling called Caché Monitor.

Its main purpose (obviously) is the collection of statistics for programs running in Caché. It can provide statistics by program, as well as detailed Line-by-Line statistics for each program.

Using Caché Monitor

Let’s take a look at a potential use case for Caché Monitor and its key features. So, in order to start the profiler, you need to go to the terminal and switch to the namespace that you want to monitor, then launch the %SYS.MONLBL system routine:

zn "<namespace>"
do ^%SYS.

Hello All,

Hoping someone can help with this odd error.

A vbscript file is being used to perform an update to cache.

The file has worked without an issue for well over a year.

Recently, the update has begun to throw an error.

(class references modified to remove client data)

UPDATE CACHE.UCI.Reg.Pat (Column1) VALUES ('USERNAME') WHERE ID = '2190284'

C:\Web\Config\SchedTasks\script1.VBS(73, 6)

Microsoft OLE DB Provider for ODBC Drivers: [Cache ODBC][State : S1000][Native Code 105]

[c:\Windows\SysWOW64\cscript.

Hi Community!

We introduced a new tag for the posts:

 Global Masters 

A very simple SQL

SELECT field1 F1, count(field2) CntF2
FROM GCT.PA_Data
where field1 is not null
group by field1

gives an error back:

 [SQLCODE: <-461>:<Communication link failure>]

  [%msg: <Connection 'TRAKCARELIVE': Execute: SQLState: (HY000) NativeError: [10053] Message: [Cache ODBC][State : HY000][Native Code 10053] [c:\intersystems\ensemble\bin\cache.exe] Software caused connection abort> ]

It does work in another (test) environment, but not on live. Any idea why?

As a result of Evgeny's recent questions regarding the use of QEWD.js with IRIS in another post, I thought it would be a good idea to create a separate post focusing specifically on how to use QEWD.js to create REST APIs for IRIS.

QEWD.js is,  of course, a Node.js framework, and all the REST API code can be written entirely in JavaScript. 

The RealWorld Conduit reference application makes a great exemplar for this kind of thing, as the APIs are all published and there are numerous implementations of both front-ends and back-ends for it, using different technologies, frameworks and databases.

Is their a way to queue messages in a business operation to be processed later? I want to process messages over a certain size on a schedule, but let everything else process in real time. Is their a way to do this with one business operation or would I have to queue the large messages in a different business operation?

what is mirroring??

Hi Everyone!

New session recording from Global Summit 2018 is already on InterSystems Developers YouTube Channel:

Advanced Cloud Provisioning & Deployment

Dear all,

In our application made in Caché object script, when we deploy some classes modified we have the option of calling "Purge queries" feature of Caché.

We only were doing this call when a %Persistent class definition (table) was modified, as we assume that no other changes affect the cached queries and we don't  want to purge them by default, as the first run of a query becomes slow.

We had a case where no table definition was changed but a purge queries was the solution.

Do you know if any other change could affect the cached queries and a purge queries is necessary? 

Regards,

After enabling archiving log functions, Oracle can get real-time change data through CDC.

Can Cache database realize such functions?

My requirement is to take incremental data from the cache database regularly every day and synchronize it to other relational databases.

Incremental data can be text files.

Hi

   May I know what is the benefits of using the License Servers option and when to use it? Read through the documentation  http://localhost:57772/csp/docbook/DocBook.UI.Page.cls?KEY=GSA_license#… but failed to comprehend it.  

Thanks

Regards
Jimmy

Hello,

I'm trying to use Websockets and understand how it works. To do so, I tried to follow the sample in here :

https://github.com/intersystems-ru/WebSocketsSample

I opened studio, connected to my server into the USER namespace and use the Tools -> Import Local in order to add the 3 files (app.js.xml, index.html.xml and WebSockets.Main.cls )

I compile without error and use the View -> Web Page and it doesn't work as expected 

I can't see here what's the issue. Does anyone have some ideas ?

Thank you very much.

Jean Baptiste

Hi, I updated the schema on our live node, but the change did not occur on the mirror server. Is there some setting that I need to enable? Everything else seems to be updating but the schema has not

Can you advice on what I could be missing or is this something that is known?

Regards,

Eric

Hello,

I am pretty stuck here and would appreciate any help or advice on an approach to this...

I have a single claim file, ingested that has 7 claims inside of it, I am pulling each claim out based on a qualifier, then want to remove all of the others and do something with the one that is left over.

My problem is I cant seem to figure out how to Remove the Claims programatically...

ClassMethod PCRemoveClaim(pTargetDocument As EnsLib.EDI.X12.Document, tCount As %Numeric) As %Status
{
     Set tStatus = $$$OK
     Try {
     
            Set tStatus = pTargetDocum

I am trying to explore some new possibilities outside of the normal day to day HL7 interfacing we do. I have only done 1 other Web Service interface but it was using a SOAP proxy wizard. Now I am tasked with trying to make a call to an external API 

https://npiregistry.cms.hhs.gov/api/

but I am a bit confused about how to go about doing it. Since they don't have a wsdl, this means it is a REST web service correct? or is it considered an API call?

Hi. I have the following tables

User.Order [Parent][Primary Key : Year , Month, OrderNo]

 > User.OrderDetails [Child] [Primary Key : {%%PARENT}("ITM")(Running Number)]

 > User.OrderDetails2[Child] [Primary Key : {%%PARENT}("ITM2")(Running Number)]

  My question is there any problem if I use a composite key in User.Order?  I am using the composite key is because I have a lot of records each month(millions) and sometimes I will need to clear the records for a specific month for reloading, with those primary key removing the data would be easier (possibility faster too).

I have this code here;I am trying to read a csv file but when I run this code I get  <LIST>%open+3^%stream.Object.1 would anyone have a look and tell me where I am going wrong .Record mapper is fine but I need a custom csv Importer

ClassMethod ImportCSV()
{
   set adapter =##class(%File).%New()
  
  set status=adapter.%Open("C:\In\in.csv")
  
  if $$$ISERR(status)
  {
   do $System.Status.DisplayError(status)
  }
  
  set counter =1
  
  while 'adapter.AtEnd
  {
   set line=adapter.ReadLine()
   
   set rec= ##class(CSVRecord).%New()
   
   set rec.

I have a persistent class that represents cities across the United States.  It is below, but basically has a City Id, Name, Lat, Lon and a few other unimportant fields for this issue.  Anytime I attempt to query on the Latitude or Longitude it immediately returns no results.  My first thought was that it was a casting issue so I tried casting both sides to floats, ints, even strings and in all cases it immediately comes back with no results.  I then decided to cast it to a string and attempt a like statement thinking it might be something about how floats are handled, but still no joy.

Are you ready for the next Advent of Code this year?

Just a few days left, the first puzzles will unlock on December 1st at midnight Eastern Time.

Not sure if I will manage to find time to solve those puzzles as quickly as last year, but hope some of you will do. We still have our leaderboard, you can join 130669-ab1f69bf.  So, we will see who the best.

Hi guys,

I'm running a method on an instance of Cache 2010, which, when compiled, has $$$OK in it's .int code.  This line throws an error, telling me that "the OK macro isn't recognized". 

Some things I've tried;

- I looked it %occStatus, and the macro definition of OK is there.

- I changed $$$OK to 1 by hand in the .int code.  It compiled successfully, but each time I recompile the original class, it's going to put that $$$OK back

- I tried Include %occStatus at the top of the class.  The .int code was unchanged when I did this (is my syntax on that wrong?

Hi guys,

Mostly the title.  Let's say my commands are stored in a text file "inFile".  Here was my best guess:

<dir to iris> console IRIS2018 <inFile

For reference, here's an example of the analogous structure that works on Cache:

C:\InterSystems\Cache2018\bin\cache -s C:\InterSystems\Cache2018\mgr -U <namespace to start as> <inFile

I think the problem is this:  When the Cache prompt is started, it opens in the same terminal as the line that started it, so passing inFile to standard input effectively types out inFile's lines as login info or commands in Cache.

Let's say you have about 100TB of data in multiple CACHE.DAT. The biggest one is about 30TB but mostly more than 1TB. You have limited time for maintenance during a day, and it is only a few hours at night. You have to check Integrity as much often as possible. And of course backup it.

How would you do it?

Hi All,

I want to connect with Python pages from cache database by using Restful API's. I'm not sure which one is best method.  I have mentioned below the methods. Please post your thoughts. 

1) CSP Session

2) OAuth 2.0(Delegated access)

3) EWD(Enterprise web development)

Thanks in advance. 

Thanks,

Arun Kumar Durairaj. 

Hi,

My [Ensemble] > [Queues] page shows message queues for Operations that were deleted months ago.

When I deleted the Operations I thought Ens.Util.Tasks.Purge would cause the (empty) queues to disappear from the Queues page.

Is there a way to remove queues that no longer refer to an operation?

Kind regards,

Stephen

Here's a fun test to see how well you know ObjectScript.

What will each of the following statements output?

This is the class which I want to test.

Class GSK.MyTestUnit Extends %RegisteredObject {

ClassMethod Add(num1 As %Integer, num2 As %Integer) { s res=num1+num2 q res } }

This is my testing class.

Class GSK.TestingClass Extends %UnitTest.TestCase {

Method test() { Do $$$AssertEquals(##class(GSK.MyTestUnit).Add(3,8),41, "Test Add(2,2)=4 passed ") do $$$AssertNotEquals(##class(GSK.MyTestUnit).Add(3,8),11,"pass/fail") }

}

The test cases are passed even though they should fail.

s ^UnitTestRoot="C:\TestSuite1" d ##class(%UnitTest.Manager).

Hi,

When we define a %String property, and don't mention any MAXLEN, by default it uses 50 as defined in class %Library.String.

As a result, when we try to save data more than 50 characters, it fails with below error.

ERROR #7201: Datatype value 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX' length longer than MAXLEN allowed of 50

This is very challenging when we parse data and tries to store it in SDA3 structure, because in many places its always set to 50, which is not enough.