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Configuration Element (DTA)

Specifies a user-specified configuration consisting of existing and hypothetical physical design structures for the Database Engine Tuning Advisor to analyze when tuning a workload.

    <Configuration [SpecificationMode="Relative" | "Absolute"]>
    ...code removed here...

Configuration Attribute Description


Optional. Specifies whether Database Engine Tuning Advisor should analyze the specified configuration in relation to the current existing configuration, or as a completely new, standalone one. Use a string data type to specify this attribute with one of the following allowed values:

Evaluates the specified configuration in relation to the current existing configuration of physical design structures (indexes, indexed views, partitioning) in the database that is being tuned. For example:
<Configuration SpecificationMode="Relative">
Evaluates the specified configuration as a standalone configuration. When Absolute is specified, Database Engine Tuning Advisor does not consider the existing configuration. For example:
<Configuration SpecificationMode="Absolute">
Allowed Value Description

Characteristic Description

Data type and length


Default value



Optional. Can use once for each DTAInput element.

Relationship Elements

Parent element

DTAInput Element (DTA)

Child elements

Server Element for Configuration (DTA)

For a usage example of this element, see the XML Input File Sample with User-specified Configuration (DTA).