#SQL

Hi Community,

See how IntegratedML in InterSystems IRIS can be used to make machine learning predictions directly from SQL commands:

⏯ IntegratedML in a Nutshell

Good Morning,

I have this question for a long time. When I make an insert by SQL from an external application in the fields of type %String, if they are empty, it writes the character $c(0) in the global.

Is there a way so that if an Insert is received in a field of type% String with null value instead of the $ c (0) it leaves it empty?:

I have the class defined like this:

Class User.MiClase Extends (% Persistent,% XML.Adaptor)

and the property like this:

Property myProperty As% String;

I have tried creating a trigger or setting default values but it doesn't work.

Class Queries in InterSystems IRIS (and Cache, Ensemble, HealthShare) is a useful tool that separates SQL queries from Object Script code. Basically, it works like this: suppose that you want to use the same SQL query with different arguments in several different places.In this case you can avoid code duplication by declaring the query body as a class query and then calling this query by name. This approach is also convenient for custom queries, in which the task of obtaining the next row is defined by a developer. Sounds interesting? Then read on!

Hello,

I have a csp that occasionally will show Timeout error.

I am looking at the SQL Statements tab of the SQL Explorer:

The Average time is around 1.4, what would cause the CSP page to timeout if the query average time is 1.4 while the CSPGateway Server Response Timeout and Queued Request Timeout are default to 60 seconds? Does sql query from CSP that causes web pages to timeout get logged into SQL Statements ?

Thanks

Hey, 

I have a value in epoch time in which I need convert in order to be able to lookup a table that has dates in YYYY-MM-DD HH:MM:SS format

I thought the below would work but it is not.

select COUNT ('Arrival Time') FROM dbo.table where 'Arrival Time' < DATEADD(ms, CONVERT(int,LEFT(1603173432000, 20)), '1970-01-01 00:00:00')

Presenter: Anton Umnikov
Task: Identify your slowest SQL queries and tune them for better performance
Approach: Use InterSystems’ query profiling and analysis tools. Discuss how system configuration can affect performance
 

This session will show you how you identify the weakest link in your application SQL and introduce you to the fine art of tuning those queries. To do this we will take a look at InterSystems query profiling and analysis tools, as well as how system configuration can impact SQL performance.

Problem: Obscurity on how our SQL engine works

Content related to this session, including slides, video and additional learning content can be found here.

Hi

We have multiple edge production namespaces and want to run query to get errors/alerts from Ens_Util.Log table across namespaces. is it possible?

We have a routine in one namespace.

We have a Cache SQL table in a different namespace.

What is the syntax for inserting into this table from the routine in the other namespace?

Can this be done without using ZN?

Thanks.

I noticed when creating Record Map's within Ensemble that it is creating a Persistent cache table as it translates the file and puts it into the Record Map data structure.

I was wondering if there was a way to add a column to the cache table that is Hidden from the record map, but is a calculated date value on when that record was inserted? 

From time to time I have gotten questions about what was valued in the incoming data stream, and I thought it would be helpful to add a date so I can sort on by which date that record came in on.

Hey Developers,

New demo show by InterSystems Product Manager @Raj.Singh5479is already on InterSystems Developers YouTube: 

⏯ Develop a Python Flask app with InterSystems IRIS in 10 minutes

Hi,

I'm trying to ultimately create a function that I can use with HL7 messages that calls a stored procedure held on a SQL Server.

Initially I tried extending the function class to use the sql inbound adapter and/or EnsLib.SQL.Common, but this wouldn't work from the class method for the function.

Then I attempted to use the linked stored procedure using the wizard where it connected fine and I could find the sp but but it wouldn't return any data when ran. The test sp should just return an int.

The class document produced is this.

Hi Developers!

How do you handle errors with &sql a.k.a. embedded SQL?
I think I found a universal error-handling template which works in any situation:

&sql(SELECT * FROM Sample.Person)

if SQLCODE < 0 throw ##class(%Exception.SQL).CreateFromSQLCODE(SQLCODE,"Context description")

What is your choice?

Hey Developers,

New demo show by InterSystems Manager @Amir Samary is already on InterSystems Developers YouTube: 

⏯ InterSystems IRIS: Kafka, Schema Normalization and Service Enablement

I am trying to create a Procedure in Caché, but this message is showing:

<UNDEFINED>frmit+118^%qaqpsq *mt("v",1)

This is the procedure:

CREATE PROCEDURE testebi.sp_cargainicial()
BEGIN
    INSERT INTO testebi.Fato_Atendimentos (
    PK_OsProcedimento )
    SELECT ID
     from dado.TblOsProcedimento    ;    

    UPDATE testebi.Fato_Atendimentos as A SET PrimeiraOS = 1
    FROM 
    (select min(convert(int,data)) data, paciente 
    from dado.arqordemservico
    group by paciente) as b
    WHERE a.fk_paciente = b.paciente and  a.fk_Data  = b.

I have a class that has 2 different cursors for different queries, audit1 and audit2. which are in 2 different methods. The first query runs fine, but the second one generates a 102 error.

Is there an issue with having more than 1 cursor in a class?

Has anyone seen this before?

Hi guys!!

In the system that I work, I came across an iterator pattern that uses the %Resultset library without performing the close after executing the query. Does anyone know how to say what are the impacts of not performing such a procedure?

If you have any model of iterator pattern made in caché to recommend as a good example, I will be grateful hehe  :D

Hi everyone

Anyone knows how can we add a column to an existing linked table in Cache to reflect the external SQL table?

I've tried different queries. It does not fail but does not add the column either...

Caché2010

Caché2016

I need to consume the content of ^SPOOL output over SQL.
^%SPOOL utilities don't look so promising

Keywords:  IRIS, IntegratedML, Machine Learning, Covid-19, Kaggle 

Purpose

Recently I noticed a Kaggle dataset  for the prediction of whether a Covid-19 patient will be admitted to ICU.  It is a spreadsheet of 1925 encounter records of 231 columns of vital signs and observations, with the last column of "ICU" being 1 for Yes or 0 for No. The task is to predict whether a patient will be admitted to ICU based on known data.

This dataset seems to be a good example of what's called "traditional ML" task. The data seem to have the right quantity and relatively right quality.

I use these example classes:
Class Sample.Address Extends (%SerialObject, %Populate)
{Property Street As %String;
Property City As %String;
Property State As %String(POPSPEC = "USState()");
Property Zip As %String;}
Class Sample.Person1 Extends (%Persistent, %Populate)
{  Property Name As %String;
Property Home As Sample.Address;
Property AR As array Of Sample.Address; }

In SQL it is Table Sample.Person1

No problem to define INDEX on Home_State

But Table Sample.Person1_AR

HowTo define an INDEX on AR_State ?
Index st On AR.State;

Does not compile!

Hi,  

In my previous articles, one of the most exciting things about FHIR that I mentioned it's the wide range of possibilities that we have and not only for creating something but the ways to achieve this goal.

I try to compare classic JOIN against implicit JOIN.

It is a simple case. But I am surprised.

The class:
Class Sample.Person1 Extends (%Persistent, %Populate)
{  Property Name As %String;
Property Home As Sample.Address;
Property AR As array Of Sample.Address; }

Query #1 - classic:
select name,home_state,a.* from sample.person1 p
join sample.person1_AR a on p.Id=a.person1
and home_state=AR_state

Query #2 - implicit
select person1->name,person1->home_state,*
from sample.person1_AR where person1->home_state=AR_state

for both I have the same query plan:

It is a simple query on  2 or 1 simple  tables.

Hi,

As part of our continuous efforts to expand and improve the InterSystems IRIS Data Platform, we’ve set up a brief survey around SQL monitoring. Your feedback will help us in designing and developing the right tools for the job and improve the platform’s overall ease-of-use. Please use the link below to access the survey, which should only take around 5 minutes to complete.

Hi:

I have an sql outbound adapter. Sometimes we have trouble connecting to the database. 

The timeout in develpment is set to 15 seconds in live it is 150 seconds as it is an always connected Buisness operation. 

I thought adding E=S or/and X=S would suspend the message. Why does it not? 

Is the only way around then adding something to the buisness operation itself/ creating a customised SQL buisness operation rather than EnsLib.SQL.OutboundAdapter?

Thanks 

Mark

Hi, I want to INSERT a customerID and customerName to a table if the customerID does not exist. Or UPDATE if they've changed their name.
I've reviewed the documentation (https://docs.intersystems.com/irislatest/csp/docbook/Doc.View.cls?KEY=R…) and have confused myself with the INSERT OR UPDATE statement. Rather than using two individual statements , is there a way to get it in one?

What I have at the moment doesn't do anything. In fact it errors.

I intend to use this within a code block in a DTL.

 set customerName = ##class(BAB.Utils.ExternalSystem.TransformFunctions).

Does anyone know if there is a table or query to get the Application Error Log (^ERRORS) by SQL?

cache 2017.2 windows 10

Is there any way to change the sql Shell interface to output a <TAB> between the fields instead of outputting one or more spaces between columns

I needed to run an sql ( that took a while to run) and then  cut and paste the generated output into excel, trouble was the paste into excel was not very good for columns when there's spaces used between the columns

kev

I'm trying to get a count of specific message type with a specific entry and thought I could build the query in Message Viewer but  this does not provide counts (as far as I am aware). So when I take the SQL from 'Show Query' it omits the segment criteria as the code shows below. 

 I have attached the criteria that has been excluded. Is this possible?

Thank you

SELECT head.ID AS ID, 
       {fn RIGHT(%EXTERNAL(head.TimeCreated),12)} AS TimeCreated,
       head.SessionId AS SESSION,
       head.Status AS Status,
       COUNT (*) AS messages,
       CASE head.IsError
           WHEN 1 THEN 'Error'
           ELSE 'OK'
       END AS Error,
       head.SourceConfigName AS SOURCE,
       head.TargetConfigName AS Target,
       head.SourceConfigName,
       head.TargetConfigName,
       head.MessageBodyClassName AS BodyClassname,
       head.MessageBodyId AS BodyId,
       EnsLib_HL7.Message.%ID AS Body_ID,
       NULL AS Body_OBR_SpecimenSource_specimensourcenameorcode_identifier
FROM Ens.MessageHeader head,
     EnsLib_HL7.Message
WHERE head.TargetConfigName = 'ReviewOrders Router'
  AND head.%ID >= 189143244
  AND head.%ID <= 189589516
  AND (((head.SourceConfigName = 'Review Pathology Inbound'
    OR head.TargetConfigName = 'Review Pathology Inbound'))
  AND head.MessageBodyClassName='EnsLib.HL7.Message'
  AND head.MessageBodyId=EnsLib_HL7.Message.%ID)
ORDER BY head.ID DESC

What is the sql command to describe table in cache db.