Indicates whether a tabular model is enabled for use in Direct Query mode.
命名空间： Microsoft.AnalysisServices
程序集： Microsoft.AnalysisServices（在 Microsoft.AnalysisServices.dll 中）
语法
声明
Public Enumeration DirectQueryMode
用法
Dim instance As DirectQueryMode
public enum DirectQueryMode
public enum class DirectQueryMode
type DirectQueryMode
public enum DirectQueryMode
成员
| 成员名称 | 说明 | |
|---|---|---|
| DirectQuery | Indicates that queries against the model should reference only the relational data source. | |
| DirectQueryWithInMemory | Indicates that queries against the model should reference primarily the relational data source but can use the cache if available. | |
| InMemory | Indicates that queries against the model should use only the in-memory data store. | |
| InMemoryWithDirectQuery | Indicates that queries against the model should reference the xVelocity in-memory analytics engine (VertiPaq) cache first, and then the relational data source. |
注释
After the model has been enabled for Direct Query access, you must also set a property on the data source that specifies whether to use Direct Query only, or to use a hybrid mode. For more information, see DirectQuery 模式（SSAS 表格）.