DCS evaluateWhereExpression: Difference between revisions
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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));