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.
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Inheritance Hierarchy
Object | |
ExprAggregate |