What are the various indexes in Teradata? How to use them? Why are they preferred?

devquora
devquora

Posted On: Jun 16, 2021

 

The index is an important aspect of database design used in Teradata.The various types of Indexes used in Teradata are:

No primary index -  The absence of a primary index is counted as No primary Index.

Primary indexes - The primary index value is set to determine on which AMPS the rows of a primary‑indexed table are to be stored.

Hash and join indexes - The various join indexes are not necessarily mutually exclusive types.

Secondary indexes - It includes Unique, Nonunique hash‑ordered on all columns with the ALL option, etc.

 

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