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Creates a DbFunctionExpression that invokes the canonical 'StDevP' function over the population of the specified collection. The result type of the expression is Edm.Double.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbFunctionExpression ^ StDevP(System::Data::Common::CommandTrees::DbExpression ^ collection);
public static System.Data.Common.CommandTrees.DbFunctionExpression StDevP(this System.Data.Common.CommandTrees.DbExpression collection);
static member StDevP : System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionExpression
<Extension()>
Public Function StDevP (collection As DbExpression) As DbFunctionExpression
An expression that specifies the collection for which the standard deviation should be computed.
A new DbFunctionExpression that produces the standard deviation value.
collection
is null
.
collection
is invalid.
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