DropOnlyMode Element (DTA)
Applies To: SQL Server 2016 Preview
Specifies that Database Engine Tuning Advisor should only consider dropping existing indexes, indexed views, or partitions during the tuning session. No new physical design structures are considered when this tuning option is specified.
The following example shows the TuningOptions section of a Database Engine Tuning Advisor XML input file where the DropOnlyMode is specified. In this example the tuning time is limited to 24 hours (1440 minutes) and all existing clustered and nonclustered indexes will be considered for dropping: