How non clustered index point to the data?It never points to anything It is used for pointing data rows containing key values None of the mentioned It points to a data row
Question
How non clustered index point to the data?It never points to anything It is used for pointing data rows containing key values None of the mentioned It points to a data row
Solution
A non-clustered index points to data rows containing key values. Here's a step-by-step explanation:
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A non-clustered index is a special type of index in database that is based on a value not present in the data.
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Each entry in a non-clustered index points to a data row containing the key value.
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When a query is made, the database system uses the non-clustered index to find the location of the data row containing the key value.
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The system then retrieves the data from that location.
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Therefore, a non-clustered index is used to speed up the search process in a database by providing quick access to the data rows.
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