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#Caché

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

Documentation.

Question
John Flippance · Jun 2, 2017
Decoding Base64 PDF File

Hello, I am writing some cache code that will pick up a PDF file, Base64 encode the contents and then send on to a third party system within a Long String (via their API). I have been testing this and discovered that the PDFs do not open within the supplier system (I get an error saying that it hasn't been decoded correctly). I wanted to prove that the issue does not lie with the way that I have Base64 encoded it within Ensemble, and therefore as a test wanted to Encode the PDF stream, then decode the stream and write out to a new file.

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InterSystems Supported Platforms Update Feb-2023

Welcome to the very first Supported Platforms Update! We often get questions about recent and upcoming changes to the list of platforms and frameworks that are supported by the InterSystems IRIS data platform. This update aims to share recent changes as well as our best current knowledge on upcoming changes, but predicting the future is tricky business and this shouldn’t be considered a committed roadmap.

We’re planning to publish this kind of update approximately every 3 months and then re-evaluate in a year. If you find this update useful, let us know! We’d also appreciate suggestions for how to make it better.

With that said, on to the update…

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InterSystems has corrected an issue that can cause InterSystems IRIS® and Caché to not take advantage of large pages for shared memory on Windows, even though these products report that large pages are allocated. This can have detrimental effects on system performance.

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Out of curiosity, I was looking in ^ROUTINE global to see how routines are stored internally.

I found out that lot of nodes are displaying "~pointer" as associated value (eg: instead of a string).

What are those pointers ? My guess is that it references some cache internal structure (eg: some nodes inside a B-Tree).

Is there a easily way to see what is behind ? Are pointers useful for user globals or is this something purely internal to Cache database ?

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Good afternoon! 👋 We would be very grateful if you are kind enough to read and respond to our request 😊.

We need given an Authentication request issued towards our OAuth 2.0 authorization server; that in case of error, the responded message is customized.

Currently if we point from POSTMAN to:
https://[IP]:[Port]/oauth2/token?grant_type=client_credentials&scope=my/scope

Username: Erroneous
Password: Erroneous

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Listen to CEO George James chat with Derek Robinson, host of the InterSystems DataPoints podcast talk about source control, developer tools and how our solutions are beneficial for InterSystems IRIS users.

 

In this short 17 minute episode, George and Derek discuss our work with developer tools, and how choosing the right source control can provide users with a seamless solution - which is why Deltanji is seen as the go-to source control for InterSystems IRIS users.

Listen now on the InterSystems website > https://bit.ly/3Jp5py5
or wherever you get your podcasts - just search for 'InterSystems DataPoints'.

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Hi guys,

I'm trying find a way to create a row with the number of each row.

For example:

In the SQL above, i want a way to create a collum with the number of corresponding row, in this case:

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2

3

In SQl SERVER i can use FOR, RANK or ROM_NUMBER to do this, but, i can't find a way to do the same in cache SQL.

Can someone help me?

Thank you.

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Mirroring 101

Caché mirroring is a reliable, inexpensive, and easy to implement high availability and disaster recovery solution for Caché and Ensemble-based applications. Mirroring provides automatic failover under a broad range of planned and unplanned outage scenarios, with application recovery time typically limited to seconds. Logical data replication eliminates storage as a single point of failure and a source of data corruption. Upgrades can be executed with little or no downtime.

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Article
Daniel Aguilar · Feb 5 2m read
COS Url Shortener

Hi Community!

I want to share with you mi first Open Exchange application.

It's a tool to made our developments easier. It's a micro service in a IRIS docker that help us in our new features giving us a way to add short links in our SMS, Email campaigns and for links of the different stores for our apps.

It's very easy to use it.

Simply clone this repo:

https://github.com/daniel-aguilar-garcia/cos-url-shortener.git

Open Exchange app
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Article
Robert Cemper · Jan 23 2m read
Global-Streams-to-SQL

In general Global Streams are data objects embedded in Classes / Tables.
Using and viewing them with SQL is normally a part of the access to the containing tables.

SO WHAT?

During debugging or searching for strange or unexpected behavior there could be the need to
get closer to the stored stream. No big problem with direct access to Globals with SMP or Terminal.
But with SQL you are lost.
So my tool provides dynamic access to Global Streams wherever you may need this
Special thanks to @Oliver Wilms for the inspiration for this tool.

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Question
Smythe Smythee · Nov 14, 2022
SSL Configuration for Gmail

Hi Community,

I am configuring new SSL Configuration for Gmail (For sending errors to gmail in ensemble production) by following the below steps.

Step1:

Step2:Giving the server address smtp.gmail.com

Step3:Giving the port number , I have tried giving 465,587,25 as port number still is not connecting

Can anyone please tell me where i am doing wrong on configuration?

Thanks,

Saroja.A

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Hi All,

I want to run an SQL like below

Select ID,Rollno,Marks,Name,Section,Teacher from Marks left outer join Student on Marks.StudentID=Student.ID

Now, the Student.ID is having the encrypted value which is not matching with Marks.StudentID (as this is clear value).

I can get the clear value using encrypted value as follow

^StoreValue("EncryptStudentID",Student.ID)=$LB("123"). That 123 is the clear Student.ID which I need to match in SQL query (ON clause).

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Hi All,

I have a below query for which I need help.

I have a persistent class User.Cars.cls. The properties of this class is mapped through Global mapping with global (^CAR(Date,CarSerialno,Seq)).

Property CarNumber as %String (TRUNCATE=1) [SqlFieldName= CAR_Number];

Mapping of 5th Piece of ^CAR global to CarNumber property.

For e.g.^CAR(Date,CarSerialno,Seq)=1^2^3^4^BMW 4567^6^7

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Hello all,

I am hoping someone can give me some guidance.

I have this code below; please see below. It works perfectly fine. However, when I use a different target, it is not working. 0 files were copied.

w $ZF(-100,"/SHELL /LOGCMD","copy","C:\DICOM\IMAGE\IMAGE1.DCM","E:\IMAGE\COPIEDIMAGETEST1.DCM")

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Question
Scott Roth · Jan 25, 2018
List of Business Services

Is there a way to get the list of Business Services from a command line call? We are trying to see if there is a way we can automate bring down our Inbound Business Services during a fail over.

Thanks

Scott Roth

The Ohio State University Wexner Medical Center

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