Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Service Management2017.11

Develop > Programming Guide > System language > Variable pools

Variable pools

Variable pools are functional groupings of variables within ITSMA Service Management. There are currently four variable pools:

Global

A global variable is visible to the entire system. It begins with $G. or $lo..
Local

A local variable is only visible to the RAD application in which it was defined. It begins with $L..
Parameter

A parameter variable is defined on a parameter command panel. It may contain a value passed in from another application. By convention, parameter variables are written in uppercase letters, such as $PHASE or $GROUP.LIST. Parameter variables are invisible to the debugger.
Thread

A thread variable is only visible to the thread in which it was defined. The same variable in different threads has different values, even when the threads are spawned by the same parent.

Variable pool	Variable	Comments
Global	$G.
Global	$lo.
Global	$MARQUEE.
Global	$SYSPUB.
Local	$L.	There is only one local variable. It can contain many pieces of data, similar to the way a structure contains many pieces of information. For example, `$L.env` and `$L.file` are two pieces of data that `$L.` can contain.
Parameter	$PHASE $GROUP.LIST	These are just a few examples, there are many parameter variables.
Thread	$file $array $post	These are just a few examples, there are many thread variables.