#SQL

A VIEW in SQL is basically a prepared SQL statement.
It has to be executed and assembled like any other SQL query.
MATERIALIZED VIEW means that the content is collected before hands and can be retrieved rather fast.
I saw the concept first with my favorite competitor named O* and they made a lot of noise about it.
  { favorite: because I could win every benchmark against them }

I try to compare classic JOIN against implicit JOIN.

It is a simple case. But I am surprised.

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

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.

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

This is a coding example working on Caché 2018.1.3 and IRIS 2020.2 
It will not be kept in sync with new versions 
It is also NOT serviced by InterSystems Support !

Standard error logs in IRIS / Caché / Ensemble are written global ^ERRORS.
As this piece dates back some decades back to previous millennium its structure
is far from the typical SQL storage structures.

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

Is it possible execute create table from management portal?

I tried this:

CREATE TABLE SQLUser.Teste(ID INT NOT NULL,  coluna1 VARCHAR(255),  coluna2 VARCHAR(255),  coluna3 VARCHAR(255),  coluna4 VARCHAR(255)CONSTRAINT TestePK PRIMARY KEY (ID))

Error message:

Hello, I am running into a little problem.

I am trying to create a Cache Trigger on a FACS table using the SQL CREATE TRIGGER command but I am getting the message [SQLCODE: <-300>:<DDL not allowed on this table definition>].

I am not creating a persistent class but using the SQL CREATE TRIGGER command.

Please advise.

thanks.

Let's say we have two serial classes, one as a property of another:

Class test.Serial Extends %SerialObject
{
Property Serial2 As test.Serial2;
}

Class test.Serial2 Extends %SerialObject
{
Property Property As %String;
}

And a persistent class, that has a property of test.Serial type:

Class test.Persistent Extends %Persistent
{

Property Datatype As %String;

Property Serial As test.Serial;

}

So it's a serial, inside a serial, inside a persistent object.

I got a resultset, and some columns might be a JSON_OBJECT. Is there a way (based on metadata) to determine that the column was formed from JSON_OBJECT function?

set rs = ##class(%SQL.Statement).%ExecDirect(,"SELECT 1 colA, JSON_OBJECT('id':1) col2")
do rs.%Display()

I do not want to try parsing json.

Hi Developers,

Please welcome the new video, specially recorded by @Zhong.Li for the InterSystems IRIS AI Programming Contest: 

⏯ IntegratedML-Template Demo

Hi Community!

Enjoy watching the new video on InterSystems Developers YouTube and learn more about IntegratedML feature:

⏯ IntegratedML: Predicting Readmissions

Hi, I have a timestamp of 201906192359 with a HL7 and I need to add a minute to it to get 201906200000. Is there an easy way within Healthshare to do this?

It seems easy enough within SQL but I cannot get the SQL to work within Healthshare,  this is what I have for SQL which does the job in SQL Server.

 SELECT REPLACE(REPLACE(REPLACE(CONVERT(CHAR(16),DATEADD(mi,1,STUFF(STUFF(@test,11,0,':'),9,0,' ')),120),'-',''),' ',''),':','');