I'm a DBA and support Caché databases on AIX. I coded shell scripts for monitoring journaling status, databases size, license end date.

We recently got a new instance of Caché on Windows. I'm just curious to know whether anyone coded database monitoring scripts on Windows using PowerShell or any other scripting language.

If yes, please share the details.

Thanks & Regards,

Bharath Nunepalli.

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Question
· Aug 14, 2019
upload file to FTP

Hi

I am trying to upload a file to a ftp site using following code.
Problem is file is getting upload but there is no data. Can you plz advise where I am getting lost.
Also my files are with big data, 2+ GB, as far as know this ftp upload will not effect on my cache.dat size. Plz correct if my understanding is not correct.

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Hi Developers!

InterSystems IRIS stores everything in globals and if we use ObjectScript classes to persist data class documents globals it uses in storage. But if you use globals for calculations, temporary storages, for special indexes or for some other purposes - how do you document it?

Possible options which come to my mind:

1. Macro

#define Array ^MyGlobal

usage:

s $$$Array(1)=1

2. Class parameter

Parameter Array ="^MyGlobal";

Usage:

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Object Synchronization is a feature that has been around for a while, since Caché days, but I wanted to explore a bit more how it works. I've always thought that database automatic synchronization is complex by nature but, for some particular scenarios shouldn't be so hard. So I considered a very simple use case (OK, perhaps the typical one, I'm not discovering anything... but if it's common and it works, it's good wink ).

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Hi,

Is there any way to set environment variables in Linux from Cache?

I see a way to get an environment variable with: $system.Util.GetEnviron()

Essentially I am converting from VMS (DCL) to Linux.

In VMS we used $ZF(-1,"SETSYM") in Cache to a value and then interpreted that value in a DCL procedure.

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Article
· Jul 18, 2017 2m read
Old/New Dynamic SQL Cheat Sheet

The newer dynamic SQL classes (%SQL.Statement and %StatementResult) perform better than %ResultSet, but I did not adopt them for some time because I had learned how to use %ResultSet. Finally, I made a cheat sheet, which I find useful when writing new code or rewriting old code. I thought other people might find it useful.

First, here is a somewhat more verbose adaptation of my cheat sheet:

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Question
· Aug 15, 2019
List property

I have a list property that I query from the database to get the values contained in that list using $LISTFROMSTRING() when the list is returned the list values contain a rectangle like character similar to when you copy past something to the Terminal and it has a preceding space .The problem is I need to compare those values to other values and they do not match because of this value I have tried to use $EXTRACT(value,*W) and *P but this is not striping the preceding character how do I get rid of this character any ideas please.

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Question
· Jul 24, 2019
Using Relationships

In Cache for UNIX (Red Hat Enterprise Linux for x86-64) 2018.1.2 (Build 309U) Mon Mar 4 2019 15:07:46 EST

I have a master record that has a relationship to a table with multiple transactions, and the transaction table has a relationship to another transaction table with multiple other transactions.

IE Item to Physcal to Physical Report

Item Master:

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Question
· Aug 12, 2019
write #

Hi

Is there any way to control what control sequence is sent to a device when a "write #" is executed?

I have an application that establishes a banner at the top of the terminal window and when we do a "write #" the banner disappears. I need to be able to recreate the banner line as part of the screen clear.

Thanks

Jenna

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I have an OAuth 2.0 development environment where Caché is serving all three roles as the Authorization Server, Client and Resource Server based on a great 3-part series on OAuth 2.0 by @Daniel Kutac. I have a simple password grant type where an x-www-form-urlencoded body (as described in this post) is sent as a POST to the token endpoint at https://localhost:57773/oauth2/token and a response body with a HTTP Response 200 header is returned. The response body looks something like this.

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Hi,

I am trying to use the LogicialToDate method in the %Library.FilemanDate class. In the class documentation it talks about the parameter STRICTDATA (see below). I would like to set the STRICTDATA to a 1 but I am not sure how to do that when using this method because the method does not reference this as a parameter to be passed into it. (see below).

How do I set the parameter?

Thanks

parameter STRICTDATA = 0;

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Just wondering if anyone knows if there is a way to get daily emails or alerts about changes to a cache database. I know that all of that information is contained within the journal files, just wondering if there is a way to bundle it up each day and send it off for auditing, etc.

Any solution where a plain-text/readable format of changes to the cache database could be sent or stored for review would solve the issue.

Thanks!

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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
· Jun 6, 2019
ODBC connection error

Hello,

There is a problem connecting clients through ODBC.

"ERROR [08S01] [Cache ODBC][State : 08S01][Native Code 459]
Connection via cconnect failed:
TCP connect() failed - exception satisfied select().
Reason: (10061, 0x274d) No connection could be made because the target machine actively refused it."

Error sometimes occurs. In cconsole.log there are only messages about high CPU usage.

ODBC and Cache version Cache for Windows (x86-64) 2013.1.4 (Build 801).

Any suggestions?

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For Cache client install automation, where are the remote server settings stored on a Windows 10 PC?

Are they stored in the registry? I found the Cache registry key, but it only lists the remote server address and not the ports.

Are they stored in an INI file? If so, I haven't found it yet.

I can push the client install via the very helpful CEDocs URL (https://cedocs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=GCI_windows_silentinst)

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A SOLID Design in Cache Object

In this session, we will discussing SOLID Principle of Programming and will implement in a example.
I have used Cache Object Programming Language for examples.
We will go step by step to understand the requirement, then what common mistakes we use to do while designing, understanding each principles and then complete design with its implementation via Cache Objects.

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Hi Everyone!

Please watch the new video on InterSystems Developers YouTube, recorded by @Sourabh Sethi in the "Coding Talks" format:

Informative and Fast WEB API VIA ObjectScript and Ensemble/HealthShare

https://www.youtube.com/embed/fhwiSy54lyY
[This is an embedded link, but you cannot view embedded content directly on the site because you have declined the cookies necessary to access it. To view embedded content, you would need to accept all cookies in your Cookies Settings]

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Article
· Jul 31, 2019 2m read
Anti CSRF Methods

IRIS provides us with anti login CSRF attack mitigation, however this is not the same as a CSRF attack, as login attacks only occur on the login form. There are currently no built-in tools to mitigate CSRF attacks on api calls and other forms, so this is a step in mitigating these attacks.

See the following link from OWASP for the definition of a CSRF attack:

https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)

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Article
· May 31, 2017 28m read
Cogs Library

Cogs Library

Over the next few months I will be releasing a number of open source libraries and tools to the Caché community.

Most of the code has evolved from previous production grade solutions over the years and I am collating it together under a single overarching library package that I am calling Cogs.

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