DRAG DROP
You administer a SQL Server 2014 instance.
You have been assigned to determine the cause of frequent long-running transactions that have been tracked
to the dbo.Account table, where there are many cases of blocking and deadlocks. The dbo.Account table
contains more than one million rows.
Users and processes frequently search for and update data by using the AccountId column, and less frequently
the AccountNumber and GovernmentId columns, all of which contain only unique values. Users frequently get
lists of AccountNumber values by searching on Last Name and then First Name.
You need to modify the structure of the dbo.Account table to alleviate the issues.
How should you complete the table definition to reduce contention on the table structure? To answer, drag the
appropriate code snippets to the correct locations in the CREATE TABLE statement. Each code snippet may be
used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view
content.
Select and Place:
Explanation:
Note:
Users and processes frequently search for and update data by using the AccountId column (Primary Key
Clustered) , and less frequently the AccountNumber (Unique Clustered) and GovernmentId(Unique Clustered)
columns, all of which contain only unique values. Users frequently get lists of AccountNumber values bysearching on Last Name and then First Name (LastName, Firstname) INCLUDE (AccountNumber).