Difference between revisions of "DCS evaluateWhereExpression"
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| − | + | =DCS_evaluateWhereExpression = | |
| + | [[Category:Data_Cache_Functions]] | ||
Evaluate a WHERE expression | Evaluate a WHERE expression | ||
| − | ===Syntax=== | + | === Syntax === |
DCS_evaluateWhereExpression(whereExpression) | DCS_evaluateWhereExpression(whereExpression) | ||
| − | ===Arguments=== | + | === Arguments === |
*whereExpression: is string. ex: "selectColumn(Id) where true;" | *whereExpression: is string. ex: "selectColumn(Id) where true;" | ||
| − | ===Return value=== | + | === Return value === |
Execute the where expression and return an object depending on where expression: | Execute the where expression and return an object depending on where expression: | ||
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|- valign="top" align="left" | |- valign="top" align="left" | ||
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number | number | ||
| − | ===Example=== | + | === Example === |
number dcsResourceId1 = DCS_getCurrentDcsResourceId(); | number dcsResourceId1 = DCS_getCurrentDcsResourceId(); | ||
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print(DCS_evaluateWhereExpression(expression2)); | print(DCS_evaluateWhereExpression(expression2)); | ||
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Revision as of 09:20, 15 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 Examplenumber 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)); |
