InterSystems Official
· Aug 24, 2016
Alert: Database Compaction

August 24, 2016 – Alert: Database Compaction

This is an addendum to the Alert published on October 14, 2015 – Alert: Database Defragmentation.

That alert indicated that the database defragmentation utility in 2014.1 and higher, on all platforms except OpenVMS, could cause database degradation and the correction JO2871 is available to clients upon request and would be included in future releases. The correction was included in 2015.1.3, 2015.2.2 and 2016.1.

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Hello community!

Is there any method/property/way in Caché to obtain something like unique identifier for installed Caché system? The idea is to get the identifier that will differ on any other installation/machine/etc, but will forever remain the same for the current installation, even if $zv changes (in case of update) or any data is removed from the database.

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Has anyone configured Zen Reports/FOP to support png images? If you have, could you please share the library that you used, the configuration required, and whether it was worth it (vs converting images to one of the natively supported formats)?

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Hi,

We are trying to implement a client side data provider as a component (ZEN) that will use JQuery to do rest calls to a desired URL, in this case, a %CSP.Rest service implemented by ourselves.

This component will be used within our application that is authenticated with a correct user configured on Caché management portal and therefore using one license unit. As we are using a Ajax call from client side this connection creates a new session that will use a new license.

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Hi all,

For custormer support reasons we would like to know if its possible to activate some kind of flag or see/redirect wich is the code (lines) being executed when some misterious problems appear.

Is there any way to view the stack of execution code on a deployed code environment? Is there any other equivalent way to track the execution stack for a certain period of time?

Best regards

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Article
· Aug 13, 2016 3m read
NewBie's Corner Session 17 New command

NewBie's Corner Session 17 New command

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

New command

The New command limits a variable's scope or range of use. In theory the New command is simple, in reality the New command is powerful and needs to be respected and understood. In Caché ObjectScript and MUMPS an entire chapter is devoted to it.

There are three variations of the New command:

When used without variables

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Process-private Globals can be used as a data global in storage definition. That way, each process can have its own objects for the class with ppg storage. For example lets define a pool, which can:

  • add elements to a pool (ignoring duplicates)
  • check if an element exists in the pool

Here's the class:

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Question
· Aug 9, 2016
Storage Management

We want to isolate the storage of our CCDAs from our HL7 V2 data, but keep them under the same namespace. From my understanding, I should create a new database then store those classes related to CCDAs in that database. Is this the correct approach?

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Article
· Jul 14, 2016 1m read
Caché Haiku

Alex Koblov posted today a #CachéHaiku:

Full command names

Make your code more readable

Than compact versions

My haiku:

Caché Globals

Shows you keys to the value

If you $order it

Your variant? ;)

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NewBie's Corner Session 16 Introduction to New Concepts

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

A number of new concepts are introduced in this session that will be developed more fully in subsequent sessions. It is necessary to at least introduce these concepts here because they are all interrelated.

Older style of MUMPS Programming

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Question
· May 23, 2016
REST and IO redirection

Problem: I have a REST broker, and if I hit a code block, which does IO redirection, the REST reply becomes broken in one of the following ways:

  • Binary output
  • No output
  • First 4096 characters of the reply are missing

Consider the following REST broker:

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