Hi, this post was initially written for Caché. In June 2023, I finally updated it for IRIS. If you are revisiting the post since then, the only real change is substituting Caché for IRIS! I also updated the links for IRIS documentation and fixed a few typos and grammatical errors. Enjoy :)
If you need to migrate your server for some reason, you can reduce the setup work by copying configuration information from the pre-migration environment to the post-migration environment.
The following setting information can be migrated.
Many organisations implement centralised log management systems to separate and centralise the log data in order to e.g. automate threat detection (and response) and to comply with regulatory requirements. The primary systems of interest are the various user facing applications, but increasingly also other kinds of systems including integration platforms.
As you know InterSystems IRIS besides globals, object, document and XML data-models also support relational where SQL is expected as a language to deal with the data.
And as in other relational DBMS InterSystems IRIS has its own dialect.
I start this post to support an SQL cheatsheet and invite you to share your favorites - I'll update the content upon incoming comments.
If a relationship is set and there is a large number of n in a 1:n ratio, a large amount of memory may be consumed due to sequential processing of the relationship.
After referencing a many-sided object in a program and internally swizzling it, simply releasing the variable containing the OREF (deleting it, setting another value, etc.) will not free the many-sided object and the relationship object. This is the cause.
Now, let’s say you can’t access the terminal or simply you just rather execute it from a web interface. In this article, I will show you how to execute terminal commands from a simple web page.
For example, in the image below you see how we execute $zv on a webpage:
There is no need to recompile the routines after the version upgrade, but since the version update overwrites %SYS, user-created INT and OBJ format routines (*.INT,*.OBJ) in %SYS will be deleted. Therefore, you need to be careful.
MAC, INT and OBJ routines with the following names are not deleted.
If multiple InterSystems products are installed on the same system, the latest version of the InterSystems ODBC driver among the installed products will remain registered in the driver manager.
You can change to any driver by changing the registry entry below.
Please note that running RegFiles.bat does not change the ODBC driver.
To resolve the error <PROTECT>, remove the read-only attribute of the system-wide library database (IRISLIB for InterSystems IRIS, CACHELIB for Caché/Ensemble/HealthShare (Caché-based))
Once you have finished importing the routine, remember to change it back to read-only.
[Version 2013.1 and above] [Management Portal] > [System Administration] > [Configuration] > [System Configuration] > [Local Database] Uncheck "Mount read-only" from the database name link.
There are situations when your only access to a server is using a web browser, and there is just no chance of a Terminal or Console access. The Online Demo Server is such a case.
So you have WebTerminal. That's fine for ObjectScript and Embedded Python.
You can set the maximum size of the IRISTemp database at IRIS startup by setting a configuration parameter called MaxIRISTempSizeAtStart.
After setting, the system will truncate IRISTemp to the set value (MB) at the next IRIS startup. If the current size is less than the specified MaxIRISTempSizeAtStart, no truncation will occur. Also, if 0 is specified, truncation will not be performed, so the size will start without changing. (Default) Settings are made from the menu below.
To create a user-defined error you need to prepare the XML that describes the error code and corresponding message that you want to use as a user-defined error.
We are successfully using System Default Settings to manage differences in settings across environments where the production and underlying code are otherwise identical. However, the TestingEnabled and LogGeneralTraceEvents settings don't appear to be settable via this mechanism. While we appear to be able to set them on the SDS page, they do not show up as selectable when resetting the settings on the Production Settings tab in the management portal - see screenshots below.
I was recently asked whether we have a function to convert LDAP date time stamps into $HOROLOG format or other formats and the answer is not at the moment, but there is a simple method to do the conversion.
Let us look at the facts and figures involved...
1) Active Directory's (AD) date 0 (zero) is 1601-01-01 00:00:00.000 or January 1st, 1601 at midnight (00:00:00)
2) AD timestamps are calculated as the number of 100 nanosecond intervals from date 0
3) 864000000000 is the number of 100 nanosecond intervals per day
You can hide the source by exporting/importing only the *.obj that is generated after compiling the source program.
The command execution example specifies EX1Sample.obj and EX2Sample.obj, which are generated by compiling EX1Sample.mac and EX2Sample.mac, as export targets and exports them to the second argument file.
After moving to another namespace, I am using the exported XML file to perform the import.
We are back to %SYS once again! Since we covered managing users and resources in the last two articles, we can finally move on to roles. As you may have guessed, there are a lot of methods of managing them that you have already seen in our previous writings.
ObjectScript allows you to pass any number of arguments using arrays. Do it by adding ... after the argument name.
An example is as follows. In the example statement, the argument information is set in a global variable (a variable stored in the database) so that it can be easily checked after the method is executed.
In the sample below, an image file is encoded into a Base64 string in a class property, saved, decoded again with Base64, and restored to another file.
【Usage class】
Class User.test Extends %Persistent
{
Property pics As %GlobalBinaryStream;
}
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