Note: This question is part of a series of questions that present the same scenario. Each question in
the series contains a unique solution. Determine whether the solution meets stated goals.
You manage a Microsoft SQL Server environment with several databases.
You need to ensure that queries use statistical data and do not initialize values for local variables.
Solution: You enable the LEGACY_CARDINALITY_ESTIMATION option for the databases.
Does the solution meet the goal?
A.
Yes
B.
No
Explanation:
LEGACY_CARDINALITY_ESTIMATION = { ON | OFF | PRIMARY }
Enables you to set the query optimizer cardinality estimation model to the SQL Server 2012 and earlier version
independent of the compatibility level of the database. This is equivalent to Trace Flag 9481.
https://msdn.microsoft.com/en-us/library/mt629158.aspx