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#Caché

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

Documentation.

Hi, Community!

Have a question for general discussion.

In ObjectScript we have cls for classes and mac code, which both compile into int code.

Is there any reason when you use mac instead of cls for non-persistent classes?

For me the benefits for cls are:

1. Inheritance and other OOP features

2. Auto-documented code

For mac one visible benefit is easier call in terminal:

do method^Utils(p1,p2)

vs

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I have a class that has a property calledTags (like DescriptiveWords, but tags), where multiple tags are possible. I am trying to decide on list of Objects vs. array of Objects.

Based on this post: https://community.intersystems.com/post/querying-list-property-sql, sounds like using an array of Objects is the better way to go. Indeed, I already noticed that it's not possible to have duplicates when using an array of Objects.

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I want to understand how this message is build:

[SYSTEM MONITOR] CPUusage Alert: CPUusage = 99, 99, 99 (Max value is 85).

Caché keep a log of cpu usage (99,99,99) and how is the frequency of check of this?

how can i chance the max value? is that possible?

Best,

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Hi I am getting below error in xDBC error log

<-400>: Dispatch+14^%SYS.BINDSRV ServerLoop

When I check the detail of error I am getting below information. Please suggest as our schedule job getting failed due to same error.

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I'm trying write a JavaScript generator to perform pattern match validations using existing pattern match expressions in a legacy application.

I could make a server call to perform the pattern match operation but is there a way to automatically translate the pattern match expressions into RegEx expressions so I can perform the operation in JavaScript on the client to save making an Ajax call back to the server?

Thanks

Jay Ayliff

M-Tech

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I am trying to fetch the data from cache database. But i got the error like "CSP application closed the connection before sending a responce".

Below is the query.

SELECT
CallbackComment
FROM SQ.CBPhoneResult_View Where PhoneDateODBC = '2018-04-09'

I have investigated and found that "CallbackComment" contains the special character single quotes " ' " for one result and due to this i got this error.

In this field data is enter by customer. so we cannot restrict them like Do Not use single quotes.

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Question
· Jun 21, 2018
COMANDO $ZF

Hello everyone

I have a problem with $ ZF (-1)

I need to delete file from windows folder example c: \ sys \ text.txt, when executing the w $ zf (-1, "c: \ sys \ text.txt") command, the file does not delete.
There is some other cache command that performs this task.

hugs

Davidson

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Question
· Jul 4, 2018
$ZF(-100,..) issues

Hi, I found some issues with $ZF(-100) whilst replacing our old $ZF(-1) calls following the security alert. They're easy enough to work around, just figured it might be useful to someone :)

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Question
· Jun 20, 2018
%Development permission issue

Hi All,

On button click from my zen page am calling the $System.SQL.ShowPlan() to calculate the cost of the SQL query.

In Cache` 2016.2 I faced a problem , when the logged in user didn't have the %development resource(<PROTECT> error).

But in Cache` 2017.2 it's working without the %development resource.

Is there any changes done on this area in the versions above 2016.2.

Thanks,

Dinesh

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Question
· Aug 16, 2017
PROTECT error

I try to run below two statements

Set tRS = ##class(%ResultSet).%New("%Dictionary.ClassDefinition:SubclassOf")
​set tSC = tRS.Execute("%Persistent")

and I always get <PROTECT>check+5^%Dictionary.ClassDefinitionQuery.1

The login user is _SYSTEM and should have all the permissions.

I cannot run queries in the $SYSTEM.SQL.Shell(). I would get <PROTECT>%GenerateMetadata+16^%SQL.StatementMetadata.1

However, when I run the query through SMP, everything is fine.

Any idea where could I start to investigate ?

Thanks.

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or "Didn't you say you would cover Persistent Objects in Part 5, Chris?"

Yes, that was the plan. This is a pretty important topic, so it get's its own Article

Up until now, we've display widget JSON that has been created by a basic loop. Clearly this isn't of much value. Now we have our stack connected together, and we can see that the data is flowing to the Welcome page, it's time to complete the stack and start feeding our service from "real" data.

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I cannot connect to Cache from node.js

I have installed in Windows 10 the following: CACHE 2016, node.js v 4.4.7 and express .

- where can I get cache.node? The link in the Intersystmes documentation http://globalsdb.org/downloads/ doesn't work. I found cache0100.node and cache0120.node in my Cache instance's \bin directory. But I am not sure if I can use them or not.

- how to install cache.node ? Where do I place it exactly?

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Hello Global masters,

I have some question about How can I connect C# to Cache Object without VisM?

I am always using VisM when I want to connect C# to Cache Object becouse I learn it from my co-worker .

but When I asked something in here about Cache Object and someone worte "don't use VisM because it is old thing" like that.

So I want to know about that

Thank you

Minsu.

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New to Cache/Studio. Just installed Client option for Cache (cube).

Attempting login to Management Portal for dev/tst/prd environments yields ERROR #822.

Any suggestions on where to begin to resolve would be appreciated.

Thanks!

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I am working on a TrakCare JIRA issue that requires accessing class properties in a different installation of TrakCare on another machine. For instance, I need to compare the deprecated items in the current version of TrakCare to the deprecated items in a previous release. Is there anything in the built in classes that will allow me to do this, or is it something I'll need to do with a SQL stored procedure or something else I haven't thought of?

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