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QueryBuildingExtensions.Union(QueryNode, QueryNode, UnionType) Method

Combines rows from two or more queries into a single data set and removes duplicate rows.

Namespace: DevExpress.DataAccess.DataFederation

Assembly: DevExpress.DataAccess.v22.2.dll

NuGet Package: DevExpress.DataAccess


public static UnionNodeBuilder Union(
    this QueryNode node,
    QueryNode added,
    UnionType unionType


Name Type Description
node QueryNode

A node in the federated query.

added QueryNode

A node in the federated query.

unionType UnionType

A Union type.


Type Description

A UnionNodeBuilder object for which a method is called.

See Also