NewBie's Corner Session 20 Parameters and Status Part I

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Parameters

Parameters are another name for Variables when used in passing data from one Routine to another.

Let us say we have 2 routines (RtnA and RtnB), and we want to pass 3 parameters (Parm1, Parm2, Parm3) from RtnA to RtnB.

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

MUMPS verses Caché, what's the difference?

MUMPS was developed at Massachusetts General Hospital during the 1960s. Through a series of experiences and companies over the years eventually MUMPS evolved into Caché. Some deny this but the facts are there. You can read through the various websites with Wikipedia and make up your own mind. The closest way to explain this is that Caché is a superset of MUMPS.

MUMPS is both a programming language and a hierarchical database, that is important to remember.

NewBie's Corner Session 18 Caché or Cache

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Caché and Cache

Caché and Cache are not the same. Caché is a product offered by InterSystems. Whereas Cache refers to memory storage.
In computing, a cache /ˈkæʃ/ KASH, is a hardware or software component that stores data so future requests for that data can be served faster; the data stored in a cache might be the result of an earlier computation, or the duplicate of data stored elsewhere.

Caché 
Spelled properly, Caché should have the acute accent (´ ) above the "e".

NewBie's Corner Session 17 New command

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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.

NewBie's Corner Session 16 Introduction to New Concepts

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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

A routine has access to all the variables it creates. When Routine-A calls Routine-B and Routine-B calls Routine-C, and so forth, this is known as a Call Stack.

NewBie's Corner Session 15 Executing Routines and Labels

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Routines and Labels

Routines are computer programs with a number of executable code lines.

Labels (also called tags) are points in a routine that can be called (executed). They subdivide routines into manageable modules (or subroutines).

NewBie's Corner Index - Links to connect to all NewBie posts.

I have a NewBie Question.

I have been playing around with "Basic CLass Queries."

I  have defined a very simple "Basic Class Query." (see below)

However, I cannot find in the I/S documentation how to execute this query.

Any help is appreciated.

Class LastName.BasicClassQuery Extends LastName.Person
{
Query Display() As %SQLQuery (ROWSPEC="ID:%Integer,Name:%String", CONTAINID = 1)
{
SELECT %ID, Name FROM LastName.Person
 ORDER BY DOB
}
Storage Default
{
<Type>%Library.CacheStorage</Type>
}
}

NewBie's Corner Session 13 .MAC and .INT Routines and Comment Lines

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.MAC and .INT versions of Routine

Save Routines with a .MAC Extension

When saving your routines, be sure to specify a .MAC file extension (the default) and not a .INT extension.  The .INT version of a routine is an intermediate version of the routine. It is in the .INT version of a routine that the SQL Code (and other code) from the .MAC version is expanded upon.

While editing a post, I decide I no longer want it, how do I delete it? I have one right now sitting as a draft that I don't want.

NewBie's Corner Session 12 Do and Goto

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

InterSystems Caché provides a GUI (Graphical User Interface) based Integrated Development Environment (IDE) called Caché Studio. Developers can use Studio to create and maintain applications.

Controlling Process Flow

Controlling Process Flow means controlling the execution path of code.

NewBie's Corner Session 11 Routine Line Types and Gotos

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

InterSystems Caché provides a GUI (Graphical User Interface) based Integrated Development Environment (IDE) called Caché Studio. Developers can use Studio to create and maintain applications.

In this session we will cover Routine Line types; which are Label lines, Executable code lines and the Routine Header line as well as Gotos.

Routine Line types
Labels and Executable Code lines
Executable Code lines starts in column two, or many developers just hit the tab.

NewBie's Corner Session 10 Routines and Studio

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

InterSystems Caché provides a GUI (Graphical User Interface) based Integrated Development Environment (IDE) called Caché Studio. Developers can use Studio to create and maintain applications.

InterSystems has a new IDE called Atelier but that is for later.

A Routine is the name that Caché calls computer programs. A Routine consists of a number of lines of instructions to the computer; these instructions are called code.

NewBie's Corner Session: 9 Documentation and books

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To access your documentation:

Assuming you have installed Caché, (see NewBie's Corner, Session:1),

Click on the InterSystems cube in the Windows system tray, then choose Documentation.

NewBie's Corner Session 8 Not

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

NOT operator ('), single quote or apostrophe 

The "NOT" operator reverses the truth-value and is intended for numeric operands, however it can be used on alphanumeric operands.

Hello, is there a way to reset all of the Sample Classes back to their "Installed State."? In other words, delete all the other classes I have put into the samples namespace and leave only those classes that were there when I installed the instance.?

-thank you

NewBie's Corner Session 6 If and Kill commands

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

As in other computer programming languages, the If command is the primary decision makes.

If command with numeric operands

Set X=12

If X=12 Set X=13

Write X

13

If command with alphanumeric operands

Set X="ABC"

If X="ABC" Set X="XYZ"

Write X

XYZ

Whenever alphanumeric data is being referenced, quotation marks are required.

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.

NewBie's Corner Session 4 The Plus Sign and Concatenation Operators

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.

Plus Sign (+) operator

Typically, the Plus sign (+) adds two numbers together. This is true in COS (Caché ObjectScript), but COS uses it in other ways as well.

Set the variable X to a value of +12

Set X=+12

Write X

12

Set the variable X to the value of +"ABC"

Set X=+"ABC"

Write X

0

Here, the Set command sets the variable X to +"ABC".

NewBie's Corner Session 3 More Read and Write commands & Multiple commands

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.

Write command with carriage return and line feed

When the exclamation point "!" is inserted after a Write command, a carriage return and line feed combination is produced. Note in this example, that a comma separates the exclamation point from the variable "X".

Set X=12

Write !

NewBie's Corner Session 2 Variables Set and Write commands

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

Session 2 – Click on the Caché Cube in your system tray and select Terminal to try out the commands.

Variables

Like other computer programming languages, Caché uses Variables and the values they represent to control programming. Variables are elements that represent data values. Manipulating and interrogating variables is at the root of programming.

NewBie's Corner Session 1 Installing Caché

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

Session 1 - InterSystems Inc. allows you to download a single copy of Caché to your personal computer at no cost. This is available from www.InterSystems.com.  It is at this link: https://download.InterSystems.com. You will first need to register yourself with InterSystems. Follow the instructions on how to download the install file. Choose the full version of Caché, not the Client Components.

I am trying to execute a system query. - %SYS.Journal.File_Search()

The Query is looking for a Journal File Name and a String.

However, the Query line accepts no parameters. - Query Search() As %Query(ROWSPEC = "Offset:%Integer")

But in the SearchExecute method if checks for File and String.

ClassMethod SearchExecute(ByRef qHandle As %Binary, String As %String, FileName As %String . . .

I am hoping some of you network guys have ideas. InterSystems seems to be at a standstill. When I startup Studio and try to start Terminal I get License Limit Exceeded. Starting with Terminal and going to Studio, same thing. It started when I put down a 2016 version of Cache on top of a 2015. InterSystems told me to uninstall everything and start fresh. I did that but have the same problems. What can I look at? How do I start to debug this? Although I am the only one on my PC it is really impacting my performance.

-thank you

The recent post about help with the Cache Language and the responses were very helpful.

I suggest two new tags, and the tags being permanently toward the top of the tag list.

1) Help with understanding the Developer Community

2) Help with Cache and all the various off-shoots 

Has anyone noticed that the Feature Map and Master Index was dropped from the 2016 version?

Anyone know why?

Please see the attached file of a screen shot.

Well, I have a screen shot file, but when I try to up load .docx, or .pdf, or html I am prevented, don't know why?

Yes, frustration!

I just recently got a mail regarding the latest and greatest.

I find the mail impossible to read or make any sense of.

At the bottom it says to manage my subscription.

I clicked on the link and it took me to a page that says I am denied.

All the time I am still logged in.

Then, can you tell me how do I manage my subscriptions and stop those impossible emails?

I sure wish we were back to the Google Group, I understood that.

Kindle Edition of Caché and MUMPS – Part II is released

All data is present and readable, albeit with some minor formatting issues.

Thank you for your patience in waiting for the kindle edition.

Hey, those who created and are maintaining the Community software.

There is a lot of very good post coming in.

However, how do I either send them off to my Email or a File to save them.

I do no wish to lose some of these posts in the volume of what is coming in!

Help me Mr. Wizard!

I am sure someone knows how.