#SQL

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

All time

Hi Developers,

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ InterSystems IRIS Cloud SQL @ Global Summit 2022

https://www.youtube.com/embed/QLaAH5o60y0
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I have a table with a Varchar(max) column that I have created via the HealthShare SQL portal, and I see that in it's underlying class that column corresponds to a %Stream.GlobalCharacter

When I try to do a text search on that column (referenced as cd.Code in the example below) I get an error

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Hey Developers,

New demo show by InterSystems Product Manager @Raj Singh is already on InterSystems Developers YouTube:

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

https://www.youtube.com/embed/271CEPw_weY
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Article
· Mar 21, 2024 2m read
Left Side Functions in ObjectScript

In ObjectScript you have a wide collection of functions that return some value
typically:

set variable = $somefunction(param1,param2, ...)

There is nothing special about that.
But there is a set of functions that I classify as LEFT SIDED
The specialty of them is that you can use them also on the left of the equal operator
as a target in the SET command:

set $somefunction(param1,param2, ...) = value

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Hi,

The system I am working on processes large numbers of records. Inserts, updates and so forth. There are multiple processes that can potentially work on the same table at the same time.

It is an almost impossible task to try and time these processes to not run at the same time, due to volumes, SLAs, etc.

Every now and then there are a few locking issues, Not many considering the volumes. It is just a bit of a nuisance as we need to reprocess these records later.

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Hello Everyone,

The Certification Team of InterSystems Learning Services is developing an InterSystems IRIS Developer Professional certification exam, and we are reaching out to our community for feedback that will help us evaluate and establish the contents of this exam.

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Question
· Jan 24, 2023
SQL Query needs optimization

Hi All,

I am having an SQL query (mentioned below). When I am running this query it is taking 90 min to retrieve all records (approx 1 million records).

Fetching data from 5 tables using inner join in cache. Relative cost displaying 10 million

I wan to confirm How this query can be optimized

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Question
· Jun 22, 2020
Amending timestamp

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),'-',''),' ',''),':','');

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Question
· Mar 1, 2020
SQL Inbound Adapter Errors

Hi,

I created a BS with a SQL Inbound Adapter.

Query = "SELECT rowid, fname ,lname,datesent
FROM labs
WHERE datesent IS NOT NULL"

DeleteQuery = " update labs set datesent = Getdate() where rowid = ?"

KeyFieldName = "rowid"

i am getting the following errors.

"NOT assuming network disconnect error based on: Gateway failed: DropStatement."

"Skipping previously errored row '235'"

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I just wrote up a quick sample to help a colleague load data into IRIS from R using RJDBC, and figured it's worth sharing here for future reference.

Ultimately it was pretty simple, aside from IRIS not liking "." in column names; the workaround is to just rename the columns. Someone better at R than me could probably provide some generic approach. smiley

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In the previous article, we saw in detail about Connectors, that let user upload their file and get it converted into embeddings and store it to IRIS DB. In this article, we'll explore different retrieval options that IRIS AI Studio offers - Semantic Search, Chat, Recommender and Similarity.

Open Exchange app
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I configured a SQL inbound adapter to monitor my local Cache database.

But I got "ERROR <Ens>ErrOutConnectFailed: ODBC Connect failed for 'SAMPLES' /
'' with error ERROR #6022: Gateway failed: DSN/User Connect."

Same error if the DSN setting is blank or set to my namespace.

Question is whether SQL inbound adapter is for external database server ONLY?

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SQL gateway. 'Locking' problem.

while debugging, is there in Caché a command to 'unlock' the instance of a class ?

close class, and kill class is not enough.

same problem in %Activate link

for each debug I have to exit (Halt) the terminal,

make debug in C#

coming back , and re-load again in Caché.

Regards,

Emanuel

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Hey Community,

Don't miss the latest videos on InterSystems Developers YouTube channel:

⏯ IntegratedML Update from the Field

https://www.youtube.com/embed/2-i2Z7aukSc
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One of our apps uses a class query to support a ZEN Report and works just fine in that report, producing the expected results every time. We’ve since migrated to InterSystems Reports and noticed that, for a report using the same class query, 100s of extra rows with the same column values appear at its bottom.

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Hi Developers,

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ SQL Performance: Need for Speed

https://www.youtube.com/embed/ASO_OG1xxgc
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Article
· Jun 8, 2023 1m read
How to write SELECT ... FOR UPDATE

InterSystems FAQ rubric

Since SELECT ... FOR UPDATE is implemented in many RDBMS as a method of explicit row lock acquisition, I think there are many cases where this function is used.

This syntax is not an error for InterSystems products, but it does not acquire row locks as expected.

This article will show you how to achieve equivalent functionality.

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i have this error

DrawTableError : <MAXSTRING> zDrawTable+349^%CSP.Util.TablePane.2

perhaps i have the possibility of Deleting all history queries, but i think better to check the table where last queries were stored and solve it by deleting wrong registries. anybody knows where is the table 'QueryHistory'.

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Hi Developers!

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  • InterSystems Globals (key-value)
  • InterSystems SQL
  • InterSystems Objects
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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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Dear Experts,

I have to pull out a report of certain code tables and this is my first script and I need to write many.

1. If I have to refer to the table, seeing the reference in the components with reference to SQL table and column,

can I use Select < What I need from the table>

Inner join with reference table?

I tried, I used the code table reference in the components, but I am getting errors,

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