#SQL

Hey Developers,

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ InterSystems Cloud Services - InterSystems IRIS SQL & IntegratedML @ Global Summit 2023

The related package avoids adding %JSONAdaptor to each class but uses  instead   
SQL functions JSON_OBJECT() to create my JSON objects. With this approach, you can   
add JSON to any class - even deployed ones - without any need for change or recompiling.

The trigger was the Export of M:N relationships  as JSON  objects or arrays.

I need to run a SQL query and use the output to map PV1 7.1. The query is :

SELECT ID
FROM TestTable
WHERE ProviderName = 'TEST,PROVIDER' AND IDType= 'BPI'

When I run this query with the 'TEST PROVIDER'  I do pull the ID in question but I can't figure out how to do it from the DTL given that there are various providers sent in PV 1 7 . Any assistance will be greatly appreciated. 

Hi,

I am trying to find out individual segment values in Message viewer and it display the values in Management portal, copied the query and run it on SQL editor, Segment values displayed with blank. Is there a way to get the individual segment values using query?

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I am very new to IRIS. We are developing a PHP application that connects to an IRIS instance of one of our vendors. This works well most of the time, but when I query a table to get data from particular fields that contain long text strings, it returns `NULL`. These fields are all `VARCHAR(30000)`.

I tried using the `$extract` functionality in the IRIS documentation, but that made no difference. I also tried setting the PHP setting `odbc.defaultlrl` to both 31K and 0. Neither resolved the issue.

InterSystems FAQ rubric

It can be retrieved using the schema INFORMATION_SCHEMA.

INFORMATION_SCHEMA is a system schema and is not displayed by default in the SQL menu of the Management Portal.

The method to display it is as follows.

1. Open Management Portal → System Explorer → SQL menu.
2. Check "System" on the left of the schema drop-down.
3. Select INFORMATION_SCHEMA from the schema dropdown.

The SQL to get the ID, field name (COLUMN_NAME), data type (DATA_TYPE), description (DESCRIPTION) for the specified table (Sample.Human) is as follows.

 If you're looking to get started with SQL in InterSystems IRIS or want to make your queries more efficient, try one of these short online learning exercises!

• Running Fast Queries with SQL in InterSystems IRIS (10m)
• Optimizing SQL Queries in InterSystems IRIS (15m)

Both include learning labs, so no need to bring your own instance. 

Currently, the SQL privileges (SELECT, INSERT, UPDATE, DELETE) are managed at the tables level, which can be very tedious when you have to administer many roles in an organization, and need to keep them sync with a constantly evolving data models.
By managing privileges at the schemas level, will allow to give SELECT and other DML privileges to *all* or *several schemas* to a role|user, fixing the need to manually synchronize the new tables|views to the roles.

If you agree, I invite you to vote for this idea.

In today's landscape, enterprises have grown substantially in scale, amassing vast amounts of data. This data is collected from a plethora of sources including different applications, databases, and other channels. Given the diversity and volume of this data, it's only logical for these enterprises to seek a deeper understanding of what their data entails. Some of the data can be stored in IRIS, and it can be reasonable to be able to add this data to a data lake too.

The Internet now offers many different tools for such tasks, that do not yet support IRIS, but it's achievable.

Hi all,
I am trying to execute a query like the below code.
set statement = ##class(%ResultSet).%New("some_class:query_method").   // here query method is empty and with rowspec some columname

statement.Execute(param1)

I want to fetch data type of column value returned from above. eg - Name - VARCHAR, amount - INTEGER etc.
How can I get it. Or if not possible directly. Is there any other way to validate or get datatype of values returned. Line we have type() in python3

Hi developers,

We have received quite a lot of interest in using SQL on FHIR data. As you know, FHIR data is encoded in the form of a complex directed graph, and thus you can not easily query it with traditional SQL queries or business intelligence tools. Some customers have noticed that the "FHIR search tables" in IRIS for Health have flattened part of the FHIR graph, and have tried to use them for analytics. This is an undocumented and unsupported part of IRIS for Health, and can change without notice.

Hello,

I have a global whose structure is multi-level and I am trying through a class and a SQL query to display a table which includes all the values ​​and levels.

on red hat, but I would also be interested in a wider answer.

after running a benchmark for 40 minutes, I have been asked if any rollbacks occurred in that time. Rollbacks from SQL or objects.

The application does not record this, so I am looking for a system level record.

The journal entries do the necessary reverse sets and commit just like any transaction. So i don't think i can detect them there.

The SQL documentation says "Messages indicating that a rollback occurred, and errors encountered during the rollback operation are logged in the cconsole.

The program below works perfectly when I call it directly from the Terminal, however when I call it from within a CSP it does not work (It does not do the SELECT).

In the USER namespace, the program works both in the Terminal and on the CSP , but in another namespace it only works when called directly in the Terminal.

PropList(class) ;
 k pl S c=0 s class="'"_class_"'"
 K ^PropList s ^PropList=class
 S lista=$SYSTEM.SQL.Execute("SELECT * FROM Projet.GerePageCSP")
 while lista.%Next() {
 S c=c+1,pl(c)=lista.

Overview

The online documentation contains a reference Defining and Using Class Queries -

Customizing Stored Procedures with ObjectScript directly has been useful to access NoSQL storage and external messaging via integration, to present output in tabular format.

For example: An application that already uses 90% SQL interaction from a front end, can then also extend this access to the other 10% of required platform functionality, via the same SQL access.

The purpose of this article is to explore how to achieve the same effect via Embedded Python methods.

InterSystems FAQ rubric

By specifying the start and end values ​​of the IDs for which you want to rebuild indexes in the arguments of the %BuildIndices() method provided in the persistent class (=table) definition, you can rebuild only the indexes within that range.

For example, to rebuild the NameIDX index and ZipCode index in the Sample.Person class only for ID=10 to 20, execute the following code (the ID range is specified in the 5th and 6th arguments). 

 set##class

$LB() is the $ListBuild() function. The %BuildIndices() method uses it to specify the index name.

See the documentation

Introduction

In some of the last few articles I've talked about types between IRIS and Python, and it is clear that it's not that easy to access objects from one side at another. 

Fortunately, work has already been done to create SQLAlchemy-iris (follow the link to see it on Open Exchange), which makes everything much easier for Python to access IRIS' objects, and I'm going to show the starters for that.

Thank you @Dmitry Maslennikov !

The FHIR® SQL Builder, or Builder, is a component of InterSystems IRIS for Health. It is a sophisticated projection tool used to create custom SQL schemas using data in an InterSystems IRIS for Health FHIR repository without moving the data to a separate SQL repository. The Builder is designed specifically to work with FHIR repositories and multi-model databases in InterSystems IRIS for Health.

The objective of the Builder is to enable data analysts and business intelligence developers to work with FHIR using familiar analytic tools, without having to learn a new query syntax.

I'm looking for an efficient way in DBeaver to filter system tables (ex: belonging to a schema starting with "%").

By using a user with the %All role, DBeaver shows us a long list of system schemas, which forces us to go down the list before accessing the user tables.

I cannot get any further hint from the error message in red in this screenshot. Is there any clue or details about the connection failure that I could look for?

A bit of an old school CSP question.  <csp:search> is a really nice, quick way to make easy lookups for CSP pages, especially for back office stuff that doesn't need to look pretty for the modern web app user.

At any rate, I'm here at the moment:

<csp:search SHOWSQL=1 NAME="OrgSearch" SELECT="OrganizationName Organization Name,Abbreviation,Software->Abbreviation Software" WHERE="OrganizationName Organization Name,Abbreviation,Software->Abbreviation Software" STARTVALUES=",,Software" PREDICATES="%startswith,%startswith,%startswith" CLASSNAME="AppLibrary.Organization" OPTIONS="popup" ONSELECT="OrgSearchSelect">

I found the thread that discusses object mapping, in particular mapping a common global among more than one namespace. The example that is given is a simple one when it's ^global(sub1, ^global(sub2, etc. However I'm having trouble getting this to compile/work when the global has a fixed subscript amongst variable ones.

I have this global in namespaces LAB and ARK in the following format:
^CB(1,sub1)=....

^CB(1,sub2)=...

^CB(1,sub3)=...

Hello Everyone,

Last month, we asked for input from the IRIS community regarding exam topics for our InterSystems IRIS SQL Specialist and Expert exams. We will close the window for providing feedback on the exam topics on Thursday, August 31st, 2023. Thus, if you would like to have your say in what topics are covered on the exam, this is your last chance!

To show our appreciation for helping us validate our exam design, we will hold a raffle where 15 survey respondents will be chosen to receive a $50 gift card. The gift card is a Tango Card that can be redeemed at any number of online retailers.

hi， I followed the example of the system and wrote a method to connect to an external database to obtain a result set, but I couldn't get the result. can anyone please help on this.

/// correct
ClassMethod PersonSets(name As %String = "", state As %String = "MA") As %Integer [ ReturnResultsets, SqlName = PersonSets, SqlProc ]
{
		// %sqlcontext is automatically created for a method that defines SQLPROC

		// SQL result set classes can be easily prepared using dynamic SQL. %Prepare returns a
		// status value. The statement's prepare() method can also be called directly. prepare() throws
		// an exception if something goes wrong instead of returning a status value.
	set tStatement = ##class(%SQL.Statement).%New()
	try {
		do tStatement.prepare("select name,dob,spouse from sample.person where name %STARTSWITH ? order by 1")
		set tResult = tStatement.%Execute(name)
		do %sqlcontext.AddResultSet(tResult)
		do tStatement.prepare("select name,age,home_city,home_state from sample.person where home_state = ? order by 4, 1")
		set tResult = tStatement.%Execute(state)
		do %sqlcontext.AddResultSet(tResult)
		set tReturn = 1
	}
	catch tException {
		#dim tException as %Exception.AbstractException
		set %sqlcontext.%SQLCODE = tException.AsSQLCODE(), %sqlcontext.%Message = tException.SQLMessageString()
		set tReturn = 0
	}
	quit tReturn
}

/// error
ClassMethod odbcTest() As %Integer [ ReturnResultsets, SqlName = PersonSets2, SqlProc ]
{
	if '$isobject($Get(%sqlcontext)) { set %sqlcontext = ##class(%ProcedureContext).%New() } 
	s conn=##class(%SQLGatewayConnection).%New()
	s sc=conn.Connect("samples","_system","sys") //datasource
	if $$$ISERR(sc) do $System.Status.DisplayError(sc) quit sc
	s rs=##class(%ResultSet).%New("%DynamicQueryGW:SQLGW")
	try {
		s sql = "select * from Sample.Person"
		d rs.Prepare(sql,,conn)
		d rs.Execute()
		s ^tmp("%ROWCOUNT")=rs.%ROWCOUNT
		d %sqlcontext.AddResultSet(rs)
		s tReturn = 1
	}catch{
		#dim tException as %Exception.AbstractException
  		s %sqlcontext.%SQLCODE = tException.AsSQLCODE(), %sqlcontext.%Message = tException.SQLMessageString()
  		s sc=conn.Disconnect() 
  		s tReturn = 0
	}
	;d conn.Disconnect() 
	q tReturn
}

Hy,

I have a question how to call another methode inside the main method ?

If I had:
________________________________________
Class MN.Student Extends %Persistent
{
Property Name As %String;
________________________________________
Class MN.Course Extends %Persistent
{
Property TeacherName As %String;
Relationship StudentName As MN.Student [ Cardinality = one, Inverse = Name ];
________________________________________

For "Cardinality = one" the SQL line below would be sufficient for archiving
INSERT INTO MN.Course (TeacherName, StudentName) VALUES ('Pierre','3')"

________________________________________

But if I had "Cardinality = many"
Relationship StudentName As MN.

Hi,

Any recommendations on how i can add a logic if an incoming record that is already existing in the table but different total amount value. I need to subtract the totalamt value on the input file vs the totalamt value on the table and update the table with the difference of totalamt. Any help is much appreciated. Thanks!

Set tSC = $$$OK Try {
s tEntEpicMoopRecord = ##class(MC.Data.EntEpicMoopFile).MemberIDIndexOpen(pRequest.MemberID)
if $ISOBJECT(tEntEpicMoopRecord) {
s tEntEpicMoopRecord.DateUpdated = +$h
s tSC = tEntEpicMoopRecord.%Save()
}
else {
s tEntEpicMoopRecord = ##class(MC.Data.

InterSystems IRIS currently limits classes to 999 properties.

But what to do if you need to store more data per object?

This article would answer this question (with the additional cameo of Community Python Gateway and how you can transfer wide datasets into Python).

The answer is very simple actually - InterSystems IRIS currently limits classes to 999 properties, but not to 999 primitives. The property in InterSystems IRIS can be an object with 999 properties and so on - the limit can be easily disregarded.

Hi all,

I am using %Library.ResultSet to execute my query which I have something like this.
Query GetABC() As %SqlQuery [SqlProc]{

}

After I execute this query and a resultset it returns from this. Now What I want to know is the SQL statement which will have the values dynamically added into while execution.