DbQueryCommandTree Class

Reference

Definition

Namespace:: System.Data.Entity.Core.Common.CommandTrees

Assembly:: EntityFramework.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Represents a query operation expressed as a command tree. This class cannot be inherited.

public sealed class DbQueryCommandTree : System.Data.Entity.Core.Common.CommandTrees.DbCommandTree

type DbQueryCommandTree = class
    inherit DbCommandTree

Public NotInheritable Class DbQueryCommandTree
Inherits DbCommandTree

Inheritance: Object

DbCommandTree
DbQueryCommandTree

Constructors

DbQueryCommandTree(MetadataWorkspace, DataSpace, DbExpression)	Constructs a new DbQueryCommandTree that uses the specified metadata workspace, using database null semantics.
DbQueryCommandTree(MetadataWorkspace, DataSpace, DbExpression, Boolean)	Constructs a new DbQueryCommandTree that uses the specified metadata workspace, using database null semantics.
DbQueryCommandTree(MetadataWorkspace, DataSpace, DbExpression, Boolean, Boolean)	Constructs a new DbQueryCommandTree that uses the specified metadata workspace.

Properties

CommandTreeKind	Gets the kind of this command tree.
DataSpace	Gets the data space in which metadata used by this command tree must reside. (Inherited from DbCommandTree)
MetadataWorkspace	Gets the metadata workspace used by this command tree. (Inherited from DbCommandTree)
Parameters	Gets the name and corresponding type of each parameter that can be referenced within this DbCommandTree . (Inherited from DbCommandTree)
Query	Gets an DbExpression that defines the logic of the query operation.
UseDatabaseNullSemantics	Gets a value indicating whether database null semantics are exhibited when comparing two operands, both of which are potentially nullable. The default value is true. For example (operand1 == operand2) will be translated as: (operand1 = operand2) if UseDatabaseNullSemantics is true, respectively (((operand1 = operand2) AND (NOT (operand1 IS NULL OR operand2 IS NULL))) OR ((operand1 IS NULL) AND (operand2 IS NULL))) if UseDatabaseNullSemantics is false. (Inherited from DbCommandTree)

Methods

ToString()

Returns a String that represents this command.

(Inherited from DbCommandTree)

Applies to