Bewerken

Delen via


Database object (TMSL)

Applies to: SQL Server 2016 and later Analysis Services Azure Analysis Services Fabric/Power BI Premium

Defines a tabular database at compatibility level 1200 or higher, based on a model of the same level. This topic documents the object definition of a database, providing the payload for requests that create, alter, delete, and perform database management tasks.

Note

In any script, only one database at the time can be referenced. For any object other than database itself, the Database property is optional if you specify the model. There is one-to-one mapping between a Model and a Database that can be used to deduce the Database name if it's not explicitly provided.
Similarly, you can leave out Model, setting its properties on the Database.

Object definition

All objects have a common set of properties, including name, type, description, a properties collection, and annotations. Database objects also have the following properties.

compatibilitylevel Currently, valid values are 1200, 1400. Lower compatibility levels use a different metadata engine.

readwritemode Enumerates the mode of the database. It's common to make a database read-only in high availability or scalability configurations. Valid values include readWrite,
readOnly,
or readOnlyExclusive.

Usage

Database objects are used in almost every command. See Commands in Tabular Model Scripting Language (TMSL) for a list. A Database object is a child of a Server object.

When creating, replacing, or altering a database object, specify all read-write properties of the object definition. Omission of a read-write property is considered a deletion.

Partial Syntax

Because this object definition is so large, only direct properties are listed. The Model object provides the bulk of the database definition. See Model object (TMSL) to learn more about how the object is defined.

    "database": {  
      "type": "object",  
      "properties": {  
        "name": {  
          "type": "string"  
        },  
        "id": {  
          "type": "string"  
        },  
        "description": {  
          "type": "string"  
        },  
        "compatibilityLevel": {  
          "type": "integer"  
        },  
        "readWriteMode": {  
          "enum": [  
            "readWrite",  
            "readOnly",  
            "readOnlyExclusive"  
          ]  
        },  
        "model": {  
          "type": "object",  
          ...  
        }  
    }