Question -
In _______________ index instead of storing all the columns for a record together, each column is stored separately with all other rows in an index.
Options:
A .  Clustered
B .  Column store
C .  Non clustered
D .  Row store
Answer: Option B
Column storeA database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes.
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