Expressions
Syntax
Use expressions with operators
to operate on constants, paths, or the results
of functions. The possible elements of an
expression include:
expression |
::= |
INTEGER |
expression |
::= |
FLOAT |
expression |
::= |
STRING |
expression |
::= |
NULL |
expression |
::= |
path |
expression |
::= |
|
expression |
::= |
function |
expression |
::= |
( expression ) |
expression |
::= |
expression + expression |
expression |
::= |
expression - expression |
expression |
::= |
expression * expression |
expression |
::= |
expression / expression |
expression |
::= |
expression ** expression |
expression |
::= |
expression % expression |
expression |
::= |
expression || expression |
expression |
::= |
expression |
expression |
::= |
expression & expression |
expression |
::= |
expression | expression |
expression |
::= |
expression ^ expression |
expression |
::= |
expression << expression |
expression |
::= |
expression >> expression |
Description
PQL expressions are subcomponents of other commands. An expression can be an integer, float, string, null, path, path with time, function, an expression within parentheses, etc.
Examples
Running Processes over 10 Mg
This query uses a greater-than expression in the predicate to search for information about running processes where the workingsetsize is greater than 10000000 bytes.
select name,workingsetsize from /network/device/wmi/win32_process where workingsetsize > 10000000
row name services.exe workingsetsize 13156352 Bytes row name svchost.exe workingsetsize 18325504 Bytes row name pbeagent.exe workingsetsize 18300928 Bytes . . .
Running Processes under 10 Mg
This query uses a less-than expression in the predicate to search for information about running processes where the workingsetsize is less than 10000000 bytes.
select name,workingsetsize from /network/device/wmi/win32_process where workingsetsize < 10000000
row name System Idle Process workingsetsize 16384 Bytes row name System workingsetsize 249856 Bytes row name smss.exe workingsetsize 262144 Bytes . . .
