15.10 - Example: Creating a Hash Index According to Order Date - Teradata Database

Teradata Database SQL Data Definition Language Syntax and Examples

prodname
Teradata Database
vrm_release
15.10
created_date
December 2015
category
Programming Reference
featnum
B035-1144-151K

The following hash index is distributed on its primary index o_orderdate and stored in value order on o_orderkey (the primary index for the base table orders ):

     CREATE HASH INDEX ord_hidx_6 (o_orderdate) ON orders 
     BY (o_orderdate) 
     ORDER BY VALUES;

Note that the ordering column of the base table complies with the rules that it be limited to a single numeric column four or fewer bytes in length.

This creates an index that is equivalent in structure to the following join index.

     CREATE JOIN INDEX ord_jidx_6 AS
      SELECT o_orderkey, o_orderdate, orders.ROWID 
      FROM orders
      ORDER BY o_orderkey
     PRIMARY INDEX (o_orderdate);