#SQL

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SQL is a standard language for storing, manipulating and retrieving data in relational databases.

When using "IDENTITY" as my primary key, I can select the last inserted ID with 

SELECT LAST_IDENTITY() FROM %TSQL_sys.snf;

Actually this is how Hibernate + Iris' Driver acquires the inserted ID when mapping with

@GeneratedValue(strategy = GenerationType.IDENTITY)

 

Now, considering that I am using the type "SERIAL" as my primary key instead, how can I get the last inserted ID?

Note that with "SERIAL" I can forcefully insert any value for this ID, from which Iris will continue generating values...

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I have vendors asking for verification that messages for locations are coming through to them.  I can get generic ADT_A01 type of numbers in Activity.  I'd really like to get some good SQL queries that can give me a count of MSH.4s (for example) for a day for X Operation.  I'm not sure which table to look at for that information.

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Hello,

I have established an ODBC connection with our client based on credentials they provided.    The test connection was successful and after using the Link Table wizard I can now see the client's tables and properties.    However when we try to execute a query in IRIS we are getting error code -226.   I'm trying to determine if this could be just a simple setting problem in IRIS or something with the client.   

We have tried with PostgreSQL as well as with TSQL.  Same result for each.

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Following instructions on this page https://docs.intersystems.com/latest/csp/docbook/Doc.View.cls?KEY=D2IMP_... I am trying to create a Data Connector to be used as a base class for a cube with update support.
That page suggests that putting an SQL query inside XData block is not suitable for a Data Connector that supports updates.
Later it also suggests that to enable updates your SQL query must include 

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Image search like Google's is a nice feature that wonder me - as almost anything related to image processing.

A few months ago, InterSystems released a preview for Python Embedded. As Python has a lot of libs for deal with image processing, I decided to start my own attemptive to play with a sort of image search - a much more modest version in deed :-)

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Question
Scott Roth · Jan 14, 2021
SQL Inbound Adapter settings

In the Inbound SQL Adapter settings, is it possible to specify more than 1 field as the Key Field Name? 

Because of the way the Query is being index in Ensemble by the Key Field Name, sometimes transactions get missed and I would like to see if we can add an additional key to the mix to ensure all the transactions are picked up. In this case the InterfaceTrigger is an ID that is auto generated by the table, and I would like to use that as well to ensure we don't miss transactions, and it does not throw any warning messages when it executes the Delete Query.

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DataGrip is a multi-engine database environment targeting the specific needs of professional SQL developers, DataGrip makes working with databases an enjoyable and productive experience.

To work with InterSystems IRIS from DataGrip you'll need to add InterSystems JDBC driver first (once per DataGrip) and after that add all your InterSystems IRIS connections.

Part 1: Add InterSystems IRIS JDBC Driver

1. Go To File → DataSources

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Does anybody know if there is an easy way to know if the execution of the command $System.SQL.PurgeForTable went well/wrong?

The documentation describes that a string is returned, but in fact there is a nice Quit "" in the code.

Maybe inside PurgeForTable^%apiSQL there is any process variable set when it goes well/wrong?

 

Thank you very much!

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Hi Developers!

Here're the technology bonuses for the InterSystems Multi-Model Contest that will give you extra points in the voting:

  • InterSystems Globals (key-value)
  • InterSystems SQL
  • InterSystems Objects 
  • Your data model
  • ZPM Package deployment
  • Docker container usage

See the details below.<--break->

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Hi,

The question is about queries on the System->SQL page. I have a class with a few columns on a global and the test output looks as expected, below. This works as expected as well returning a single row: select * from Utils.RoutineAuditReport where counter=4. However, other columns give an odd error like " Field 'AG' not found in the applicable tables^ SELECT * FROM Utils . RoutineAuditReport WHERE UserR = "AG". As you can see below, both the UserR column and the AG entry in it do exist. What could be the problem?

Thanks in advance,
Anna

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I have an SQL text index defined like this

Index TextIndex On (Text) As %iFind.Index.Basic(IGNOREPUNCTUATION = 1, INDEXOPTION = 0, LANGUAGE = "en", LOWER = 1);

If I run a query like this:

SELECT
Text
FROM Post
WHERE %ID %FIND search_index("TextIndex",'ABC')

I get 20 results with posts containing the term ABC.

But each post can contain the term ABC several times.

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Question
YURI MARX GOMES · Dec 8, 2020
SQL Query execution plan

Is it possible see the execution plan of a SQL sentence in IRIS?

Like this:

explain plan for
select  e.ename,r.rname
from    employees  e
join    roles       r on (r.id = e.role_id)
join    departments d on (d.id = e.dept_id)
where   e.staffno <= 10
and     d.dname in ('Department Name 1','Department Name 2');

That returns this:

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I have a case where I need to look up the NPI provider against an External MS SQL database to retrieve our Provider Identifier to send to a downstream system. In the past I would use a Business Process (BPL) to connect to the outside MS SQL via JDBC and get that information for me. But I was thinking instead of creating a BPL process to do this, would it be better just to link to the outside MS SQL database table to retrieve the information in a SQL statement within a DTL?

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In Oracle database, the synonym is an alternative name for objects such as tables, views, sequences, stored procedures, and other database objects.

You generally use synonyms when you are granting access to an object from another schema and you don't want the users to have to worry about knowing which schema owns the object.

Is IRIS SQL sintax has something like this: (oracle sintax)

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Question
Florian Hansmann · Dec 4, 2020
SQL Query returns x00

Hey Intersystems Community-Member,

Following Issue: When I update a SQL table like (update OnlineV3Admin.ParameterApp set popuptext = '' where ID = '1') and then read it for my Json WebService there is a /"x00" in my Json.

What is the best option to disable that? I need here  a empty String and not /x00.

Any ideas?

Best regards,

 

Florian Hansmann

 

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In the good old days (tm) determining the size of the data, streams, and indices for a class/table was easy - you just ran %GSIZE and check D, S, and I globals respectively.

However, nowadays sharding, optimized global names, and indices in separate globals produce %GSIZE output looking like this:

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Hi 

I have a table where i want to create join query like

(select * from patients where facility=abc) qry1

left join (select * from patients where facility=xyz) qry2 on qry1.patientid = qry2.patientid

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Article
Robert Cemper · Nov 21, 2020 3m read
ObjectScript over ODBC 
This is a coding example working on IRIS 2020.1 and on Caché 2018.1.3 
It will not be kept in sync with new versions      
It is also NOT serviced by InterSystems Support !
Every now and then you may encounter a situation where for various reasons
ODBC is the only option to access a remote system. Which is sufficient as long as you need to examine or change tables.
But you can't directly execute some commands or change some Global.
 
Special thanks @Anna Golitsyna for inspiring me to publish this.

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Hi,

InterSystems IRIS has long supported the obvious translation functions required to for converting to upper or lowercase to enforce case-insensitive string comparison (e.g. in ObjectScript with $zconvert) and sorting (e.g. with SQL collation functions, not to be confused with NLS collation). Customers in international contexts have at times used custom workarounds to also treat accent insensitivity or even more advanced normalization duct tape. We’re looking to address such use cases at the system and SQL level to increase convenience for this international audience, which is well represented on the Developer Community.

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Question
Daniel Aguilar · Nov 4, 2020
Avoid $c(0) in globals

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?:

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