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#Caché

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InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

I need to execute multiple DELETE statements in a single query like this

DELETE FROM TableName WHERE ID = 2;
DELETE FROM TableName WHERE ID = 3;
DELETE FROM TableName WHERE ID = 4;

However It does not work when there're more than 2 statements and gives me an error

Expected FROM found WHERE^DELETE FROM TableName WHERE

Using IN is not an option.

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Question
· Jan 16, 2018
Testing in studio

After creating a ClassMethod for a routing rule is it possible to test an HL7 message within Studio rather than using Management portal? It would make it easier to debug the custom function to see where the rule is failing.

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Hi,

I am trying to support a use case where a test instance is created from a production backup. At a high level, the process works by mounting all relevant file systems and then bringing the instance up. This works well as long as the file systems are mounted using same mount points as the source instance. However, I would like to support a case where file systems are mounted using different paths.

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Edit:

May have found the issue but not the solution.

"SELECT * FROM wmhISTORYdETAIL" runs as a passthrough without asking for the DNS.

but

'SELECT Count([wmhISTORYdETAIL].[HistHMNumber] AS CountOfHistHMNumber FROM [wmhISTORYdETAIL] WHERE ((([wmhISTORYdETAIL].[HistMovType])='Receipt') AND (([wmhISTORYdETAIL].[HistMovDate])>=Date()-1) AND (([wmhISTORYdETAIL].[HistMovDate])<Date()));'

asks for the DNS but both are linked to a table that has the password saved.

Any Ideas please?

Rob

Hi

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[SOLVED]

added

>/tmp/compilew.log &>/tmp/compilew.log ; tail /tmp/compilew.log

to redirect the output to the stdout. Somehow the javac has wierd behavior with the output on errors and verbose information.

Hi,

i want the JAVA-Projections and wrappers to compile after Caché created the files. The creation of the files works 100%.

My addition to createProjection in our Projectionclass is following:

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Several $System.OBJ methods have ByRef errorlog argument:

Compile(ByRef classes As %String = "", qspec As %String = "", ByRef errorlog As %String, recurse As %Boolean = 0)

ImportDir(dir As %String = "", wildcards As %String, qspec As %String = "", ByRef errorlog As %String, recurse As %Boolean = 0, ByRef imported As %String, listonly As %Boolean, ByRef selectedlist As %String)

What's the best approach of working with errorlog?

Do you convert it to status? If so - how? Manual iteration over local?

Is there some system method to convert it into %Status?

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Presenter: Anton Umnikov
Task: Run SQL queries quickly on huge amounts of data
Approach: Use a shared-nothing architecture to leverage a cluster of small, cost-effective servers

Explains how a shared nothing architecture allows you to leverage a cluster of small, costeffective servers to serve query results that would have taken much longer on a single, big and expensive box. This brings affordable horizontal scalability.

Content related to this session, including slides, video and additional learning content can be found here.

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About regulations

Personal data privacy regulations have become an indispensable requirement for projects dealing with personal data. The compliance with these laws is based on 4 principles:

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Hi

I am facing issue with cache database it is part of schneider PES software..the issue started with below:

and after some reinstallation i became not able even to install it.

receiving always message:

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I am in the planning stages of making things more uniform in our routines and I would like to know what the easiest way would be to include an .inc at the beginning of each .mac routine. Has anyone written something that would open all routines and place something into the first row while leaving the rest of the routine unchanged? Thanks for any guidance you all may provide.

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Article
· Mar 24, 2020 2m read
BlocksExplorer map generator

I hope you already know one of my projects Cache Blocks Explorer. I've recently renamed it to Blocks Explorer.

For the recent contest, I've added a new feature, the ability to generate a static picture of any Cache or IRIS database. Like below. Where unique globals have a unique color. This is how looks like inside 9.5GB database. Where 1 pixel represents one block. By link on image you will get even bigger image, with more detalization.

Open Exchange app
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Hi,

I was understanding the cluster configuration supported by the Cache. Have couple of queries around that:

1. In Cache version 2018.2, there is a shrading concept which splits the data of a Master Data server into multiple small data server which store shraded data.

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NewBie's Corner Session: 5 Operator Precedence

Welcome to NewBie's Corner, a weekly or biweekly post covering basic Caché Material.

Click on the Caché Cube in your system tray and select Terminal to try out the commands.

Order Precedence means the order in which mathematical operators are executed. In a Mathematical expression, you may have Multiplication, Addition, Subtraction, and Division. Which of these are executed first, second, third, etc.?

The basic Operator Precedence of mathematics is:

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Advent of Code is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : look at article https://community.intersystems.com/post/advent-code-2016-day1-no-time-ta...

In this challenge, you need to find a password using instructions to move on a keypad.
Instructions can be U(p), D(own), L(eft) and R(ight).

You start at button 5 on a keypad like

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Hello,

I am struggling to print out the actual property values of the Security.System class.

https://cedocs.intersystems.com/latest/csp/documatic/%25CSP.Documatic.cls

I was hoping to be able to print the Authentication Enabled properties of a system from the command line using the Get or GetProperties class method. Currently, however, I am only able to get a return 1 or Invalid Oref error.

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Question
· Mar 11, 2021
DisplayToLogical

Is there any reason that property method DisplayToLogical() is not calling before object saving?

I have such situation and do not know how it is possible

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Question
· Feb 9, 2023
Tracking %RCOPY and %RI

Let's supposed somebody updates routines via %RCOPY or %RI, the really old-style hardcore way which still works. Does that leave any log traces in Journaling or system globals, as of when exactly did it happen or what was the IP address of the machine changes came from? I am aware only of the Date Modified changes as seen when opening the file.

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