Over the years, I’ve noticed that certain SQL questions come up repeatedly on the InterSystems Developer Community, especially about using the LIKE predicate in different contexts. Common variations include:

• using special characters in queries
• using variables in queries

and many more derivatives. So, I decided to write an article that focuses on how LIKE works in InterSystems IRIS SQL, especially when used with variables in Embedded SQL, Dynamic SQL, and Class Queries, while touching on pattern escaping and special character searches.

First of all, I'd like to mention that InterSystems IRIS SQL offers most of the capabilities available in other relational DBMS that implement a later version of the SQL standard. But at the same time, it's important to mention that apart from relational access, in IRIS you can also use other models to get the same data, for example, object or document models.

On this note, let's look at the LIKE predicate and how this tool is used in SQL for pattern matching.

Hello, How are you doing?

I'm currently developing a proyect in wich I want to use %SYSTEM.Event to process queues. I realized that if a queue has events pending to be sent to the listeners, when I restart the cube the queue with all its events are deleted.

Is there a way to store the queue with their messages in a Global?

I've checked the documentation but I can't find any option for this prupose.

For my Embedded Python ONLY demo package I need some user input.
Similar to ObjectScript

read "say somthing",reply

I use the Python equivalent

reply = input("say something")

And this works excellent without problems from Terminal or Doker console

BAD SURPRISE:
with WebTermnial ObjectSscript works fine, but embedded Python fails badly.

Hey there,

I posted a reply to the recent video https://community.intersystems.com/post/new-video-building-data-driven-web-apps#comment-132511
with a slew of questions. Wondering if someone can take a look a address my questions on that post or on this new thread.

I'm running SQL reports on some HL7 messages and need to report the raw content of both the outbound message and the ACK response.

In a DTL to transform from HL7v2 to FHIR; select the code for the attending provider within a for each statement

<foreach property='source.AttendingClinicians()' key='st' >

<if condition='source.AttendingClinicians.(st).Code&apos;=""' >

<true>

<if condition='..In(source.AttendingClinicians.(st).IdentifierTypeCode ,"NPI","PNPI")' >

Our company is in the process of converting our software for use in Intersystems IRIS and one of the major sections of the software makes use of a custom statically-linked C library using the $ZF("function-name") functionality. During this, I found out that the process for setting up the C library to be used within the database platform has changed significantly between Cache and IRIS.

This data set demonstrates a basic M:N relationship between 2 tables
The dataset is targeted to show a slim implementation of M:N
It's no question that other implementations exist. But at significantly more storage consumption.

Hi All,I got an error when i compile one class. the error was objects of class are (classname) instantiated in 1 processes.how can i recover the problem. my cache instance is Cache 5.0

Hi,

I am trying to submit a post using mime attachment. Is there any sample available?

Regards,

MT

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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Hi Guys,

I've a task that runs every 10 mins executing the below code, but the issue is that it slowing the system down affecting other processes, so is there a way to maybe spread the execution of this so it doesn't slow down the system? I've tried spreading these fucntion in two different tasks but doesn't seem to change much.