A file is organized so that the ordering of data records is the same as or close to the ordering of data entries in some index. Then that index is called
Explanation: In Clustered Index, data blocks are stored in a way to match the index. Therefore, only one clustered index can be created on a given database table.
Refer https://msdn.microsoft.com/en-IN/library/ms190457.aspx for more details.
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