#Caché

30 Followers · 4.5K Posts

  

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

Documentation.

Article Danny Wijnschenk · Nov 10, 2017 4m read

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : go to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t…

In today's challenge, you have to execute instructions that control how bots are handling microchips.

The input contain instructions that can be something like this :

value 5 goes to bot 2
bot 2 gives low to bot 1 and high to bot 0
value 3 goes to bot 1
bot 1 gives low to output 1 and high to bot 0
bot 0 gives low to output 2 and high to output 0
value 2 goes to bot 2

Initially, bot 1

1
0 448
Article David Loveluck · Nov 8, 2017 5m read

Using the CSP Page Statistics

Application Performance Management

Introduction

A key part of Application Performance Management (APM) is recording the activity and performance of user activity. For many web applications the closest you can get to this is to record the CSP pages or CSP based services being dispatched.

If the pages or service names are meaningful and they indicate the business activity being performed the CSP page statistics can be very useful in building up a historical record of activity, performance and resource usage.

1
1 764
Article Danny Wijnschenk · Nov 9, 2017 4m read

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : go to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t…

Today's challenge is about decompressing input that is compressed in an experimental format.
In the format, markers indicate how much time a number of characters need to be repeated.

For example :

A(1x5)BC repeats only the B a total of 5 times, becoming ABBBBBC for a decompressed length of 7.
(3x3)XYZ becomes XYZXYZXYZ for a decompressed length of 9.
A(2x2)BCD(2x2)EFG doubles the BC and EF,
3
0 658
Question Romero Terrones Esteve · Nov 10, 2017

Hello All,

what is the best method for search a portion of text in a non-indexed global?

I need to implement an autocomplete kind of search, in a global of >1M registers (text type, not $lb)

Maybe the best way would be use a SQL mapped class, with 'Bitmap' indexes?

Thanks in advance!

4
0 555
Question Sébastien Demoustiez · Nov 10, 2017

Hello,

Sorry for my epic english :(

I have a strange issue.

I have generated an encryption key with the tool (UI.Portal.EncryptionCreate.zen).

Then  I activate my key for data encryption (UI.Portal.EncryptionManaged) and encryption work fine.

But when I reboot my server the key is removed from the data encryption key list (UI.Portal.EncryptionManaged) and I have to re-activate the key.

Perhaps somebody have an idee ?

Cache version : Cache for Windows (x86-64) 2016.2.2 (Build 853U)

Windows: Windows Server 2012 R2 Standard

Thanks

Sébastien

2
0 439
Question Laura Cavanaugh · Feb 8, 2017

Hi all, This is a bit embarrassing, and not that critical.  I have a local instance of Caché 2016 on my computer, for playing around with.  I was attempting to set up two-factor authentication on this instance, and I thought I simply disabled all users except for my own user and enabled two-factor for this user.  The next time I tried to login to the Management portal, I received a Server Availability Error:

http://localhost:57772/csp/sys/UtilHome.csp

Caché Server Pages Version 2016.1.1.107.0


Server Availability Error

Server is currently unavailable

I can login to the terminal successfully, and

9
0 2747
Question Thembelani Mlalazi · Nov 9, 2017

I am using a %GlobalStream to create as % stream.Object and writing that to a file but for some reason when I run that on the terminal I get <PARAMETER>zWrite^%Library.GlobalCharacterStream.1 and no file is created

I have tried the following here is my code and still get the same result  any help  appreciated

ClassMethod WriteNodes(myfile As %String){
  set status=##class(%XML.TextReader).ParseFile(myfile,.textreader)

  set ptemp=##class(%GlobalCharacterStream).%New()
  //check status
  if $$$ISERR(status) {do $System.Status.DisplayError(status) quit}
  //iterate through document, node
5
0 3185
Article Danny Wijnschenk · Nov 4, 2017 6m read

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : goto to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t…

The input in today's challenge consists of an encrypted name, a dash, a sectorID, a dash and a checksum between brackets.
A name is real if the checksum is equal to the five most common letters in the encypted name.


For example : 
aaaaa-bbb-z-y-x-123[abxyz] is a real name because the most common 5 leters are a,b,x,y,z (sorted by numer of occurences and alphabetically)

The challenge is to output

1
0 568
Article Danny Wijnschenk · Nov 5, 2017 4m read

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : goto to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t…

The challenge of day 5 is to calculate a password of 8 characters by finding the MD5 hash of the input and an increasing integer index.
The password is constructed by taking the 6th character of the first 8 hashes that start with 5 zeroes (in hex representation).

For example : if the input would be 'abc', the first hash that has 5 zeroes would be by MD5 hashing abc3231929 : the hex

1
0 527
Article Danny Wijnschenk · Nov 6, 2017 3m read

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : goto to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t…

In today's challenge, you have to repair the communication with Santa : messages are coming in, but jammed.
By using repetition code (see also https://en.wikipedia.org/wiki/Repetition_code), you can find out what's in the message : by sending the same message a number of times, you can calculate which characters are most frequent on each position and find the most likely message.

For example,

1
0 477
Question Soufiane Amroun · Nov 3, 2017

Hi, team

i configure my authorization server and client and i want define access rights  for different users , how can i do it?

knowing that  we have our own database with different users ID and access privilege ?

is there any one who can help us? thank's

1
0 331
Article Danny Wijnschenk · Nov 8, 2017 3m read

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : go to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t…

The challenge of today has nothing to do with real two-factor authentication ! (sorry if you came to this article by searching the real thing)

For the complete explanation of the challenge, go to http://adventofcode.com/2016/day/8.

Your input (http://adventofcode.com/2016/day/8/input) consists of a series of three basic instructions to control the display of a screen.
The goal of the first part

1
0 333
Article Danny Wijnschenk · Nov 7, 2017 5m read

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : goto to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t…

Today's challenge on http://adventofcode.com/2016/day/7 is about checking for valid IPv7 addresses with TLS support. (No, it has nothing to do with real ip addresses which are at most ipV6 or real TLS, but just a way to keep you busy coding & hacking!)

The imaginary ipV7 addresses support TLS if they contain an ABBA sequence outside square brackets and no ABBA sequence inside brackets.

2
0 513
Question Teresa Toler · Nov 7, 2017

I am a newbie to Cache and we are using dBeaver product to query against Cache tables. I have the following query which does a GROUP BY to aggregate the columns:

SELECT PtNumber,cpt4_OVR,CollDateODBC, COUNT(*)
FROM site.MGBILL_View 
  WHERE cpt4_OVR IN ('36415', '36416')
     --AND ChargeFlags = '0'
       AND CollDateODBC > DATEADD(DAY,-45,CURRENT_DATE)
  GROUP BY PtNumber,cpt4_OVR, CollDateODBC
  HAVING count(*) > 2

-This returns a count of 3 for each patient (aggregated)

But I need to display the actual 6 rows. I would typically do this by replacing the GROUP BY with an OVER(PARTITION BY sta

2
0 1186
Question Richard Housham · Apr 24, 2017

Hi I've created a word macro in order to convert doc to txt via the command line, this works fine via the command line by myself or another user but when I try as an the intersystems user which runs under  LocalSystem it doesn't work. 

So can I change the user, or set the $ZF to run as a different user?

Or do I have to try another way to convert doc to txt - it's looking like libreOffice?

I just wanted to stick with word because I could be guaranteed on the result being accurate.

Thanks

Regards

Richard

11
0 1445
Article Sean Connelly · Aug 21, 2017 3m read

If you want to dynamically serve images as a property of JSON then there is no perfect encoding solution. One method used frequently is to Base64 encode the image. Whilst there are some negatives to doing this, such as data inflation, there are some positives to working with Base64 images inside the browser.

Let's say you have an image placeholder on a web page...

<div id="image-container"><div>


And you fetch a JSON message from the Caché server containing the image as one of its properties...

var msg = JSON.parse(client.responseText);


Without needing to decode the image data you can create an img

4
1 1929
Question Alex Goncharov · Nov 6, 2017

Hello, evrybody, I'm writing one project using CSP("OnPreHTTP"), and also REST angular. At the beginning I wrote purely on csp, then I decided to use angular for the flexibility of the client part. Now I can not design logging, I created a table App.Log with properties

/// Type of eventProperty EventType As %String(MAXLEN = 10, VALUELIST = ",NONE,FATAL,ERROR,WARN,INFO,STAT,DEBUG,RAW") [ InitialExpression = "INFO" ];/// Name of class, where event happenedProperty ClassName As %String(MAXLEN = 256);/// Name of method, where event happenedProperty MethodName As %String(MAXLEN = 128);
3
0 689
Question Victor Tamotsu · Nov 5, 2017

I work in a small development company that uses Caché as a database. In some support cases I have doubts about whether the client's infrastructure environment is not affecting Caché's response time. Reading a bit about comparing installations in different environments, both in production as testing and homologation environments , I understood that the TPC-E is a benchmarking method accepted in the market.
I'm reading the specifications of the TPC-E and I wonder if anyone has implemented or seen something similar in Caché.

4
0 450
Question Laura Cavanaugh · Nov 3, 2017

Hello; We are managing several Ensemble instances on several servers.  One server has 4 instances, and two other servers have one instance each (those are production servers).  We encrypt all instances using the Caché encryption in the management portal.

Currently we are using two different encryption keys: 1 key on the server with 4 instances, which is used for all 4 instances, and a second key on single-instance server. ( I'm installing the newest production server now.)

What I'd like to know is what are the best practices for managing encryption keys for separate servers. 

The options are

1
0 773
Question CJ H · Nov 5, 2017

I get two methods below: I would run both methods concurrently.

However, the "testRead" would always read the uncommitted results from "testInsert".

Anyway to avoid that? Thanks.

ClassMethod testInsert()
{
  &sql(START TRANSACTION ISOLATION LEVEL READ COMMITTED, READ WRITE)
  &sql(insert into Test.Table(AttrA,AttrB,AttrC,AttrD) values(1,2,3,4))
  hang 15
  &sql(ROLLBACK)
}

ClassMethod testRead()
{
  &sql(START TRANSACTION ISOLATION LEVEL READ COMMITTED)
  &sql(select count(*) into :ans from Test.Table)
  &sql(COMMIT)
  w !,ans
}
5
0 775
Question Gerry Connolly · Oct 31, 2017

Is it possible to make the cache terminal available over a mirrored vip address for a healthshare mirrored environment? So that connecting to a terminal for a mirrored environment will always connect to the Live Node?

I'm looking to write a Powershell script to run against the system and need to connect to the Live Node in a mirrored setup. Is this possible or am I going to have to log onto each node to establish which is Live.  Or does this even matter?

4
0 569
Article Danny Wijnschenk · Nov 3, 2017 4m read

This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : goto to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t… or look at the http://adventofcode.com/ website.

In today's challenge, you have to find out how many 'valid' triangles you find on the walls of the Easter Bunny HQ.
(you can find the input on the adventofcode website : http://adventofcode.com/2016/day/3/input)

A sample of the input looks like this :

  810  679   10
  783  255  616
  545  626  626
   84  910  149
  607  425  901
  556
3
0 707
Article Danny Wijnschenk · Nov 2, 2017 4m read

Advent of Code is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : look  at article https://community.intersystems.com/post/advent-code-2016-day1-no-time-t…

In this challenge, you need to find a password using instructions to move on a keypad.
Instructions can be U(p), D(own), L(eft) and R(ight).

You start at button 5 on a keypad like

1 2 3
4 5 6
7 8 9

each line of instructions lead to one digit of the password.
Full description can be found at http://adventofcode.com/2016/day/2

For example : ULL leads to '1' (a move outside the keypad can

0
0 429
Question Soufiane Amroun · Oct 30, 2017

Hi Team

i want to implement  an Oauth 2.0 framework in my application , i define my  connexion IHM, i want to check if the login and password are right when a user connect

do you've any idea ?

thank's

2
0 609
Article Brendan Bannon · Nov 29, 2016 7m read

The Art of Mapping Globals to Classes (3 of 3)

If you are looking to breathe new life into an old MUMPS application follow these steps to map your globals to classes and expose all that beautiful data to Objects and SQL.

If the above does not sound familiar to you please start at the beginning with the following:

The Art of Mapping Globals 1

The Art of Mapping Globals 2

This example is going to show you how to map a classic parent-child structure.

Same disclaimer:  If you can’t make heads or tails of your globals after reviewing these articles please contact the WRC and we will try to help you

9
0 2034