Hi,

I'm trying (and not succeeding) to build an index based on a collection property combined with a property, like:

Index Test On (Property, ListProperty(ELEMENTS).Property2)

I see command shortcuts for getting journal details, like Status^JOURNAL for displaying the journal status.

And, I'm using the shortcuts in my shell scripts.

I'm not seeing/finding command shortcuts for getting database details.

If anyone have those details, please share with me.

Hello,

I would like to schedule the Database Compact and Freespace methods as legacy tasks.

Has anyone implemented this yet?
Is this even possible? 

The request for this is due to the fact that we have 3 interfaces in a namespace whose messages are deleted after 7 days. All other messages in this namespace should be kept for one year.
This leads to a certain fragmentation. Furthermore, the messages to be deleted are relatively large (MDM^T02 > 32MB), which in turn leads to a fast growth of the database size. 

How would you solve this problem?

Hello,

I work on deploying IRIS inside Docker container. I really like %Installer class can automate many steps. I want to establish an ECP connection to a mirror database and then define a remote database on the application server. I have already seen we can create local database and namespace in %Installer. What code is needed to establish ECP connection?

Hi Community!

We're pleased to invite you to the upcoming "Speed Test: ESG Labs Database Performance Test" webinar on August 5 at 9:30 AM EDT!

Join our live webinar with Mike Leone, senior analyst with Enterprise Strategy Group’s Validation Services, to learn about a speed test that measures and compares the concurrent real-time data ingest and query performance of InterSystems IRIS^® data platform, a leading in-memory database, a cloud relational database, and a traditional relational database. 

Hi! 

I need to export some data from a table on CACHE  and then import this data to a POSTGRESQL table.

Is this possible? I know I can export this data as a CSV format, but I prefer if there is a way to export that data as SQL format.

Thanks!!!

Hi,

Below To_Char function is not working as expected

SELECT TO_CHAR('12/31/1840','mm/dd/yyyy') ---01/12/1841

I expect the result to be 12/31/1840. Let me know If there are any suggestion to get the correct result.

Thanks,
Meena

I would like to know if there is a way of having a callback or something similar, on persistent classes that is always called after the execution of the operation (failed or successfull).

%OnOpen is executed prior to the action, and there is no post callback

%OnAfterDelete and %OnAfterSave are executed after a successfull operation

The InterSystems IRIS has functions that allows create DIWK digital services. A few products have the ability to transform data into wisdom, according to the following pyramid.

What is the best free/open source option to generate the database diagram (MER) to the iris or cache persistent classes?

Sometimes you need quickly and easily import data into IRIS. For this, an IRIS import manager has been developed.

This application allows you to import JSON data and also provides a really simple interface for transferring data from MongoDB collections to IRIS globals. It has never been so easy.

Let's look at examples.

Import JSON

A More Industrial-Looking Global Storage Scheme

In the first article in this series, we looked at the entity–attribute–value (EAV) model in relational databases, and took a look at the pros and cons of storing those entities, attributes and values in tables. We learned that, despite the benefits of this approach in terms of flexibility, there are some real disadvantages, in particular a basic mismatch between the logical structure of the data and its physical storage, which causes various difficulties.

Hi, we have mirrored databases, now we have three nodes. Primary, backup, async. They are sync by journals and with some TB each node (expensive storage).

I would like to have a scenario where the two nodes (Primary and backup) have the same amount of messages (purge task of x days) , both as failover, but the asynchronous node should have more messaging, as much as the storage allows us. We want to use this node so provider can give support(search old messages), but not have databases in production that are so large that they are hardly consulted.

Any ideas?

Hi all,

I have a class that has been working so far :(

The class extends the EnsLib.RecordMap.Service.FTPService class and add some information for each rows.

Now, when it saves the object it is raising the following error

ERROR #5803: Failed to acquire exclusive lock error

I've seen the other question in the community and I've tried to unlock