Instances of the ExprAggregate class represent
aggregate functions over the members of the associated
aggregated record.
Declaration Syntax| C# | Visual Basic | Visual C++ |
public class ExprAggregate : IExpr, IQueryNode
Public Class ExprAggregate _ Implements IExpr, IQueryNode
public ref class ExprAggregate : IExpr, IQueryNode
Members| All Members | Constructors | Methods | Properties | Fields | |
| Icon | Member | Description |
|---|---|---|
 | ExprAggregateExprAggregateNew(ExprAggregate..::ExprAggregateOp, IExpr) |
Creates a new ExprAggregate, which
will compute an aggregate function over the evaluation
of the subexpression expr on the members of the
aggregated record.
|
  | ARB |
Arbitrary function.
|
| AVG |
Average function.
|
| COUNT |
Count function.
|
| COUNTDISTINCT |
Count Distinct function.
|
| Equals(Object) | (Inherited from Object.) |
 | Filter |
Gets and sets the filter associated with this expression.
|
 | Finalize()() | Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| Function |
Gets and sets the aggregate function for this ExprAggregate.
|
| GetHashCode()() | Serves as a hash function for a particular type. GetHashCode()() is suitable for use in hashing algorithms and data structures like a hash table. (Inherited from Object.) |
| GetType()() | Gets the Type of the current instance. (Inherited from Object.) |
| IExpr |
Gets and sets the subexpression for this ExprAggregate.
The aggregate function will be evaluated on this subexpression.
|
| MAX |
Maximum function.
|
| MEDIAN |
Median function.
|
| MemberwiseClone()() | Creates a shallow copy of the current Object. (Inherited from Object.) |
| MIN |
Minimum function.
|
| STDDEV |
Standard Deviation function.
|
| SUM |
Sum function.
|
| ToString()() |
Returns the string form of this ExprAggregate.
(Overrides Object.ToString()().) |
| ToWire()() |
Returns the wire form of this ExprAggregate.
|
| ValidateSyntax()() |
Validates the syntax of this ExprAggregate.
|
| VARIANCE |
Variance function.
|
Inheritance Hierarchy| Object | |
 | ExprAggregate |