A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.
Our software commonly returns a full result set to the client and we use the DataTables plugin to display table data. This has worked well, but at datasets grow larger, we are trying to move some of these requests server-side so the server handles the bulk of the work rather than the client. This has had me scratching my head in so many ways.
I'm hoping I can get a mix of general best practice advice but also maybe some IRIS specific ideas.
Hello! So my question is quite simple, Do the different data models of Intersystems all support the ACID properties? I assume that for the SQL data model implementation it does, But does it also work for global (i.e the hierarchical data model)?
is there anything special to consider when running a foundation production regarding purge jobs (Ens.Util.Tasks.Purge)? I am thinking specifically of the QuickStreams, which according to my information are stored in a temporary database until the system is restarted. Since a system reboot is much less frequent then the purges, I wonder what happens to the QuickStreams whose messages and headers have already been purged. Is there a way to view Quickstreams (not content, but rather metadata) e.g. via the Management Portal?
Hello all; I am using a one-to-many relationship. I have a Claim (one), in a relationship with Lines (many), but the Claim is storing a list of Lines IDs, rather than the Lines storing the Claim Id. This seems upside down, and not what I expected.
I have an scenario, please advise or suggest possible ways to solve it. So i have a persistent class to test results of a diagnostic laboratory. The properties are
i'm trying to extend both the MemberEnrollment and the MedicalClaim objects in HS. The CareProvider is perfect for some of my extensions (Operating provider, referring provider, third-party insurer), but the documentation says https://docs.intersystems.com/irisforhealthlatest/csp/docbook/DocBook.UI...
I have an application with maps that render and edit geographic data in a some layers using KML - geo data represented into XML file with layers, polygnons, points and metadata associated with it. Some maps are in GeoJSON too.
In the first one, I have defined a class which Extends (%Persistent, Ens.Util.MessageBodyMethods), we'll call it NSOne.Msg.Req
In the second namespace NSTwo, I want to use the previous class with something like SET pInput = ##class(NSOne.Msg.Req).%New()
I mapped the NSOne.Msg.Req package in namespace NSOne. In Atelier, I can see NSOne.Msg.Req in my NSOne. But, when I try to execute line 2 above, it tells me :
Is there a data model for the Ensemble EnsLib_HL7 tables in the database? A client wants to run some SQL and would like some documentation about table relationships.
As you know there are two (at least) ways to get the stored value of the property of InterSystems IRIS class if you know the ID of an instance (or a record).
1. Get it by as a property of an instance with "Object access":
ClassMethod GetPropertyForID(stId As %Integer) As %String
{
set obj=..%OpenId(stId)
return obj.StringData
}
2. Get it as a value of a column of the record with "SQL access":
is there any indication that the .NET object representation of Cache objects (i.e. InterSystems.Data.CacheClient.dll) complies with .NET Standard? I'm planning to extend our existing .NET client/server solution with a mobile option by Xamarin Forms and can't find any significant hints in the internet.
I'm just fooling around a bit and made some expreiments with a REST API and a generic object-to-JSON tier:
First time post, also a new Cache developer, hence the <Beginner> tag.
If our data has Predefined terms in a dictionary, and a user can add terms on their own, can the terms exist in different tables?
Lets call the tables "Terms" and the user data in "UserTerms".
If a third class definition has a property of "Term" can it not be either Terms or UserTerms?
I'm leaning towards using a Subclass strategy where the pseudo "Parent" (forgive me) is Dictionary.Term and the child is along the lines of Dictionary.Term.User
Just curious to know about the pros and cons of Parent/Child Vs One/Many.
We do use a bit of both. One big reason we use Parent child is we feel if we delete one global, it gets rid of all child data too and all parent child data is stored in one global. Much easier to manage.
I would like to know if anyone has had some experience in building systems for multiple end-users.
To keep things simple, in a hypothetical example, say an Event Booking System, where a Venue could sign up to use such a system and define it's Venue, costs, calendars, etc.. and then invite their customers to book the Venue on different days/times.
If I wish to offer such a system to many Venues, there are a number of options available.
We have a case where a vendor can send us more information in the DICOM message rather than in the HL7 result message. In theory it should be possible to take a DICOM and convert it to HL7, stupid question is has anyone done it before? Does anyone have any good examples of a DTL they did to show me how to setup the message structures and translation?
I want to introduce class B, which would have same records as Class A, but only one property - P2.
What is the easiest way to manage it assuming that I would like to use Class A to add records and be available for any operations to Users with Role A.
And I would like to introduce class B for Users with role B for read-only access. Preferably they shouldn't even be aware of Class A and P1 existence .
What is the easiest way to introduce it and manage it?
I've been building up a REST services API, consisting of a dozen or so classes referenced from a Dispatch class, which has route mappings for the first piece of the URI. I'd like to have the Dispatch class be able to output all of the available Services, with some documentation. Is there something like a %Library resource that I could use to pull this information from each of the classes?
I have been following the online Zen Quickstart Tutorial using the lastest release documentation. In addition to playing around with the styling and making a few minor functionality tweaks, I wanted to add an additional column that shows a count of the number of phone numbers for that Contact (as shown in the image below).
By update
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