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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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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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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Let's say I start with a date range of '1-5-2019' to '5-25-2019' that occurs on one row. I'd like to ultimately have this show as 5 rows in Crystal Reports as shown below

Result

1-5-2019 1-31-2019

2-1-2019 2-28-2019

3-1-2019 3-31-2019

4-1-2019 4-30-2019

5-1-2019 5-25-2019

I found a result that worked in T-SQL, but I'm not sure how to translate it to Cache SQL. The T-SQL code is

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Hello everyone,

I am looking for the syntax or the way to use a class created in the "BNA" Namespace (my application) from the %SYS Namespace.

Here is the context:

I have a "BNA" application contained in the "BNA" NS, this application provides a user creation functionality. This feature creates both the user in a table in the application and in the Iris system.

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Hi,

we're planning some work on our SQL Query Plan functionality for a future release of InterSystems IRIS and are interested to hear how you're using them today, or what'd keep you from using them. Rather than try and fit everything in a rigid survey, I thought a simple thread on our beloved DC might also reveal some use patterns that we support or could do a better job on.

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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 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

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Hi Community,

Enjoy watching the new video on InterSystems Developers YouTube:

Querying 6 Terabytes of Protected Health Information at Northwell @ Global Summit 2022

https://www.youtube.com/embed/66rZCdX7m8U
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SetIdentityInsert call controls the ability of the user to specify a value for the IDENTITY property when saving a new object, a value for the IDENTITY column or an explicit ROWID value in an SQL INSERT. If IDENTITY_INSERT is false and the user specifies an explicit IDENTITY or ROWID value when saving a new object or inserting a new ROW then an error condition is reported.

Setting takes effect immediately and lasts for the duration of the process or until SetIdentityInsert is called again.

My question is how can I change this setting system-wide?

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Hi All,

I am a beginner in cache. I need to extract data from multiple tables (4-5) tables based on an SQL query . The data is more than 9 lakhs of records (i checked using count). The total number columns is 16.

When I am running this SQL query through management portal, I am getting time out exception. Could you please suggest how I can retrieve those records. Which way will be good (Dynamic query using %SQL.Statement or Embedded SQL (not known to me) or Writing to a global will help or not).

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Hi!

I'd like to know if there are any issues if an index is inserted into a table without running the %BuildIndices() method.

It's important to note that data inserted before the index is not important for retrieval, so it's not a problem data inserted before the index don't show up in queries.

The reason why I'm asking this is that I'd like to avoid index reconstruction on big tables which I need to inser such index.

I'm using Cache 2018.1.

Thanks,

José

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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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Greetings community. I would like to know how to migrate a BD in production to a local environment. When I have a system in production (BD Sql Server) what we do is mount a local copy to do the analysis with the data and not occupy resources of the system in production. My question is: How do you do it with Intersystems technology?

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Question
· Feb 15, 2018
The Index on a String field

I noticed that the subscript of the index map is actually the collated field (%SQLUPPER).

Is String the only data type going through this transformation? Any other data type would also go through this transformation?

Thanks.

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Introduction

A password manager is an important security tool that allows users to store and manage their passwords without the need to remember or write them down in insecure places. In this article, we will explore the development of a simple password manager using the Flask framework and the InterSystems IRIS database.

Key Features

Our password manager application will provide the following key features:

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I am trying to migrate our SQL Connections from HealthShare Health Connect 2018.1.3 to IRIS HealthShare Health Connect 2022.2 using the Data Export/Import Wizard through the Management Portal. I am able to export the data fine, but I am running into issues trying to Import it into 2022.2 using the Data Import Wizard. When I run through the steps it is not importing everything from the txt file I created from 2018.1.3. I would rather not have to rekey all the connections if possible.

Here is the Background Task Error Log

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Question
· Feb 28, 2020
How to get a Numbers View

In T-SQL, I can create a recursive CTE to create a subquery or a view that will hold a whole lot of numbers. Is there a way to do this in Cache SQL? I'd like the numbers from 0 to 10000 if possible.

Thanks!

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Hi Developers,

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

IntegratedML-Template Demo

https://www.youtube.com/embed/YxpMc3sODxk
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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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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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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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