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.v21.1.dll
Declaration
public static UnionNodeBuilder Union(
this QueryNode node,
QueryNode added,
UnionType unionType
)Parameters
| Name | Type | Description |
|---|---|---|
| node | QueryNode | A node in the federated query. |
| added | QueryNode | A node in the federated query. |
| unionType | UnionType | A Union type. |
Returns
| Type | Description |
|---|---|
| UnionNodeBuilder | A UnionNodeBuilder object for which a method is called. |
See Also
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