How should you complete the T-SQL command?

HOTSPOT

You have an enterprise data warehouse in Azure Synapse Analytics that contains a table named FactOnlineSales. The table contains data from the start of 2009 to the end of 2012. You need to improve the performance of queries against FactOnlineSales by using table partitions.

The solution must meet the following requirements:

– Create four partitions based on the order date.

– Ensure that each partition contains all the orders placed during a given calendar year.

How should you complete the T-SQL command? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Box 1: LEFT

RANGE LEFT: Specifies the boundary value belongs to the partition on the left (lower values). The default is LEFT.

Box 2: 20090101, 20100101, 20110101, 20120101

FOR VALUES ( boundary_value [,…n] ) specifies the boundary values for the partition. boundary_value is a constant expression.

Reference:

https://docs.microsoft.com/en-us/sql/t-sql/statements/create-table-azure-sql-data-warehouse

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jojo
jojo
2 years ago

For box1, left is incorrect as January 1st should belong to the partition to the right. The correct answer is right.

For box2, 20090101, 20100101, 20110101, 20120101 is incorrect as it would create 5 partitions, we only want 4 partitions. The correct answer is 20100101, 20110101, 20120101