#SQL

Hi communauty

I've two columns in my table and the type must be interval of integer values for example : age must be interval between [2 and 6] years and wigth between [10 and 30 ] Kg , how can i define them when creating my table?

thank's

Why do these clauses affect SQL performance?

select ID from some_table where row_status in ('I','U') order by ID limit 5 - makes the query infinite select top 10 ID from some_table where row_status in ('I','U') order by ID - the same select ID from some_table where row_status in ('I','U') order by ID - is fast

Actually there are no rows in the table having row_status 'I' or 'U'.

Hi folks!

Is there any way to know the text of the SQL queries executed against the IRIS server?

My case: I have an SQL class query with a few parameters and and some combination of values causes unexpected results.

It'd be great if I could just copy the query from some log of queries done vs my IRIS the server. Cannot find it easily, though. Any advice?

Hello,

We are accessing an InterSystems Cacha database from Microsoft SQL Server using a linked server over ODBC (ODBC35). Queries are executed using OPENQUERY.

On the SQL Server side, there is a linked server property called Query Timeout. By default it is set to 0 (no timeout). We are considering setting it to 15 seconds and would like to understand how Cache behaves in this scenario.

Hi everyone,
I'm getting prepared to take the following certification exam: "InterSystems IRIS Development Professional".

Can you give some advice on how to prepare (aside from the official course page: https://www.intersystems.com/certifications/intersystems-iris-development-professional/ )?
Do you have examples of quiz questions that simulate the real exam or any material that helped you getting prepared?

Thanks you in advance,

Arber

Hi Community,
I’m trying to execute a directory query in InterSystems IRIS using %SQL.Statement, but encountering an unexpected error.

Details:
The following command confirms that the directory exists:

Set dirPath="\\MYNETWORK_DRIVE\DFS-Shared_Product\GXM"
Write ##class(%File).DirectoryExists(dirPath)

It returns 1, meaning the path is valid and accessible.

However, when I try to execute this SQL query:

Set File=##Class(%SQL.Statement).%New()
Set Status=File.%PrepareClassQuery("%File","FileSet")
Set Result=File.%Execute(dirPath)
If Result.%SQLCODE {
    Write Result.

As foreign tables are behind a paywall (booo); we have a external cache system using the intersystems ODBC driver or usually a .jar CacheDB.jar. 

The requirement is :

"Create a copy of the external table once a day to perform comparisons to detect changes"

We could go full code and this is what we will do but trying the following should ideally work 

CREATE TABLE Sample.YoungPeopletwo AS
SELECT *
FROM Pennine_TIE_Clinicom_Link.

Hello my friends,

I have a problem with logi report, 

in my store procedure,  I create code like this?

$ListToString(%DLIST(DISTINCT (ARCIM_Desc)),'<br/>') as "ARCIM_Desc", -> this is the problem

$ListToString(%DLIST(DISTINCT (MRDIA_ICDCode_DR)),'<br/>') as "MRDIA_ICDCode_DR", -> it's works fine

as you see there's a <br/> in the display of the report

I have no idea about this, maybe someone can help me fix this problem ?

Thank You

Best Regards,

Steven Henry

Hello, good morning, thank you so much for reading this question. ☺️🙂👍

We are developing a code to get information about our Production's items: services, processes and operations.

We know we can get various configurations of a given item: Category, Port, Enabled...

But we wonder how we could get the date time of the last mesage (most recent) received in an item.

To give a code snippet a small section of the code we have developed (and tested), it looks like:

[...]

For i=1:1:tProduction.Items.Count() {
    #dim item as Ens.Config.Item
    set item = tProduction.

How do I write DDL script for collection properties?

For example I want to create the following class:

Class SQLUser.Person {

Property Name As %String;

Property FavoriteColors As list Of %String;

}

My DDL script looks like this:

CREATE TABLE Person (Name varchar(50), FavoriteColors ???)

Hi,

     Can anyone please tell me how to append a string using a update query.

For eg :  "Hello" is the string . I need to append the string world and it needs to be "Hello world".

Thanks

Jude

Would like to know if there is an alternative or better way to paginate through a dataset using dynamic SQL than what I am using below. The problem is that as the potential pool of data gets larger, this code slows down to the point of not being useable. In analyzing each line of code below, it appears the slow down is related to the initial rset.%Next() iteration. Is there anything available which does not require a subquery/%VID such as a simple LIMIT/OFFSET?

My code is similar to :

s sql=##class(%SQL.Statement).

I need to generate a DDL file from a .cls class that already exists, the idea is to create a mirror table in SQL. Is it possible to do this export or do I need to do the CREATE TABLE manually?

Here is my code:

Method getStocks(pRequest As Stock.Message.Req, Output pResponse As Ens.StreamContainer) As %Status
{
     s tSC = pRequest.NewResponse(.pResponse)
     q:$$$ISERR(tSC) tSC

     #dim pRS As EnsLib.SQL.GatewayResultSet

     s tSC = ..Adapter.ExecuteQuery(.pRS, "select jsonb_agg(s) #>> '{}' FROM prod.stocks s where s.""Warehouse"" = ?", pRequest.Warehouse)
     q:$$$ISERR(tSC) tSC

     s pResponse = ##class(Ens.StreamContainer).%New()
     s pResponse.Stream = ##class(%GlobalCharacterStream).%New()

     i pRS.Next() {
          d pResponse.Stream.CopyFrom(pRS

Using IRIS 2024.1.2 when I mount the routine database as read-only I get an error when executing dynamic SQL queries.

What globals need to be mapped in a read-write database in order to allow execution plans to be written?

In MySQL I have the following table:

CREATE TABLE `info` (
   `created` int(11)
);

And it is linked (via JDBC SQL Gateway) to Cache table mysql.info.  `created` field stores unix timestamp. So when I execute  this SQL in SMP:

SELECT created FROM mysql.info

I receive the following output (which is expected):

But I want to to display `created` field converted to ODBC timestamp format. To do that I call this SQL procedure

Class mysql.

Hy Friends,

I have a little problem, I need to diplay the data based on input status (first time and after)

this is the data:

and this what I need to display

the notes become new because it is the first time that the data has been inputed, and it will become old if we have the data before (2nd data, 3rd data  the notes will become old).

I've try to use SubQuery (with LAG Script also) but it doesn't works, because it will give a notes Old even it's a New Data

Does anyone could help me ?

Thank You

Best Regards,

Steven Henry

I tried executing the SQL JSON_TABLE query with large JSON string(more than 200000 characters) and I got the below error. I'm curious about this under the hood workflow and how does it reach reaches MAXSTRING.

 Thanks!

Hello, community.

I have a problem with running a SQL query on a linked MySQL table.

The connection works fine, but the following query throws an error:

SELECT   TOP 10 * FROM   linkedinternal_test.persons

 [SQLCODE: <-400>:<Fatal error occurred>]

  [%msg: <Remote JDBC error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '10 T1.PersonID AS C1,T1.LastName AS C2,T1.FirstName AS C3,T1.Address AS C4,T1.Ci' at line 1. >]

Linked table class:

/// Generated by the Link Table wizard on 2025-01-08 16:09:03.

Hi everyone,

I’m using EnsLib.SQL.OutboundAdapter in my InterSystems Ensemble operation to execute an insert statement in Sql Server Management Studio 20. While inline queries (e.g., constructing the query string with _ concatenation) work fine, I'm facing issues when trying to use parameterized queries.

Serialized JSON: {"CHI":"2894","Forename":"Janis"}

Include Ensemble

Class TNHS.Operation.RDS.PatientOperation Extends Ens.BusinessOperation{

Parameter ADAPTER = "EnsLib.SQL.OutboundAdapter";
Property Adapter As EnsLib.SQL.OutboundAdapter;
Method OnMessage(pRequest As TNHS.Data.RDS.

I have issue with one of my queries. That query work fine for ages, but suddenly stop works and giving me SQLCODE 100 in the routine. 

&SQL(
	  SELECT * FROM (
		SELECT event FROM dhr_log_lasers.production WHERE createDateUTC >= DATEADD(dd, -5, CURRENT_DATE) AND kiosk = :%var("kioskID") GROUP BY machine
		HAVING ID = MAX(ID)
	  ) WHERE event != 2
	 )

If I copy this same query to the management portal and replace variable with real ID I will get back 6 or more rows.

Hello all,

We have our system with AutoParallel enabled:

USER>w ##class(%SYSTEM.SQL.Util).GetOption("AutoParallel")
1

But whenever I try to run any sql the autoparallel does not work. For example, this simple query:

When I force it with %PARALLEL we can see it will effectively run in parallel:

The total records is bigger than the threshold. So, what can go wrong? Anyone in the same situation?

I HAVE A NEW SQL CLASS THAT DISPLAYS ENTRIES BASED ON THE FIRST 2 NODES OF A GLOBAL. I FOUND OUT THAT THE CLASS ALLOWS FOR AN ADDITIONAL NODE(s) TO BE INSERTED IN THE "User Specification Node:" along the delimiter and the Piece in the NewStorage Map1 for "ModifyDDDD" shown below. it is not working.

^GBL("AA","SSSSSS")="1:1:1:1:"

^GBL("AA,"MD",1,1)="1:"

^GBL("AA,"MD","A",1)="0:"

I HAVE USED THIS:

<Data name="ModifyDDDD">
<Delimiter>":"</Delimiter>
<Node>"3,4"</Node>
<Piece>1</Piece>
</Data>

WHILE IT COMPILES IT DISPLAY NOTHING. MY QUESTION IS WHAT IS THE RIGHT SYNTAX AND PUNTUATION FOR THIS, PLEASE?

i am trying to embed a dynamic SQL into Objectscript code , but the %NEXT() will return 0 , however when i copy the same query and run it in the SQL bit it will give me the result i want 
the code :

set myquery = "SELECT"
set myquery = myquery_" $PIECE(Substring(M.Rawcontent,Charindex('PD1|',M.Rawcontent),1000),'|',4),"
set myquery = myquery_" H1.TargetConfigName,"
set myquery = myquery_" H.Timecreated,"
set myquery = myquery_" H.MessageBodyId"
set myquery = myquery_" FROM"
set myquery = myquery_" Ens.MessageHeader H"
set myquery = myquery_" left outer join Enslib_HL7.Message M ON (H.MessageBodyId=M.

Does InterSystems IRIS has a MEDIAN (or percentile) calculation in SQL?

Hi all,

We have an restriction in a SQL database with a unique index.

We want to catch that exception when it tries to insert or update a value that violates the unique index condition.

// run the query
Set tSC = ..Adapter.ExecuteUpdateParmArray(.nrows,SQL,.param)

// Check if there is any error
If $$$ISERR(tSC)
{
	Set msgError = $System.Status.GetErrorText(tSC) 
	// Check here if the native error code is 2601 (Cannot insert duplicate key row into object 'MYPATIENTS' with unique index 'UQ_UNIQUE_INDEX')
	??????
}

I've tried to get the .

Hello, I need to use IRIS to connect to an MSSQL base.
It has to be done via ODBC, I can't use JDBC at this time by client option.

I am trying to use Microsoft Driver
libmsodbcsql-13.1.so.9.2

But I can't, my attempts result in:
Connection failed.
SQLState: () NativeError: [11001] Message:

I have done all DSN configuration, and my configuration is listed in SQL Gateway Connections. I know it's working, because when I run a test with isql I have the information that connects to the bank.

This is my IRIS and Server configuration:
IRIS for UNIX (Ubuntu Server LTS for x86-64) 2018.1.1 (Build 643U)

How to add the following to a stored procedure (Cache Studio)
1. Select from a few tables and insert result into a TABLEA.
2. Then select data from the TABLEA, apply some SQL logic, insert results into TABLEB.
3. SELECT * FROM TableA
    UNION ALL
    SELECT * FROM TableB