DCS evaluateWhereExpression

From Catglobe Wiki
Revision as of 09:09, 20 December 2011 by Cg van (talk | contribs)
Jump to: navigation, search

DCS_evaluateWhereExpression


Evaluate a WHERE expression

Syntax

DCS_evaluateWhereExpression(whereExpression)

Arguments

  • whereExpression: is string. ex: "selectColumn(Id) where true;"

Return value

Execute the where expression and return an object depending on where expression:

WhereExpression

Return type

average

empty

count

number

max

number

median

number

min

number

percentile

number

quantile

number

select

empty

selectColumn

array

stdev

number

sterr

number

sum

number

variance

number

Example

number dcsResourceId1 = DCS_getCurrentDcsResourceId();

number dcsResourceId2 = 123456;

string expression1 = "average(Single2) where true;";

string expression2 = "min(Single2) where true;";

DCS_use(dcsResourceId2);

print(DCS_evaluateWhereExpression(expression1));

print(DCS_evaluateWhereExpression(expression2));