DCS evaluateWhereExpression: Difference between revisions
From Catglobe Wiki
More actions
No edit summary  | 
				No edit summary  | 
				||
| Line 115: | Line 115: | ||
| width="222" style="border: 1px solid #010101" |    | | width="222" style="border: 1px solid #010101" |    | ||
number    | number    | ||
|}  | |||
=== Example  ===  | === Example  ===  | ||
| Line 130: | Line 131: | ||
print(DCS_evaluateWhereExpression(expression1));    | print(DCS_evaluateWhereExpression(expression1));    | ||
print(DCS_evaluateWhereExpression(expression2));    | print(DCS_evaluateWhereExpression(expression2));  | ||
Revision as of 08:09, 20 December 2011
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));