You are a database administrator for an e-commerce company that runs an online store. The company has three databases as described in the following table.
You plan to load at least one million rows of data each night from DB1 into the OnlineOrder table. You must load data into the correct partitions using a parallel process.
You create 24 Data Flow tasks. You must place the tasks into a component to allow parallel load. After all of the load processes compete, the process must proceed to the next task.
You need to load the data for the OnlineOrder table.
What should you use?
A.
Lookup transformation
B.
Merge transformation
C.
Merge Join transformation
D.
MERGE statement
E.
Union All transformation
F.
Balanced Data Distributor transformation
G.
Sequential container
H.
Foreach Loop container
Explanation:
The Parallel Loop Task is an SSIS Control Flow task, which can execute multiple iterations of the standard
Foreach Loop Container concurrently.
References: http://www.cozyroc.com/ssis/parallel-loop-task
Would Microsoft, though, put in the exam something that is not integral part of the SSIS?
I would put sequence container.
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You must place the tasks into a component to allow >>>>>>parallel load<<<<<
https://docs.microsoft.com/en-us/sql/integration-services/data-flow/transformations/balanced-data-distributor-transformation?view=sql-server-2017
if the data size is large and several buffers are required to hold the data, BDD can efficiently process buffers of data in parallel by using separate threads.
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