15.10 - Example: Creating a Hash Index According to Order Date by Order ID - 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 o_orderkey (the primary index for the base table Orders) and stored in value order on o_orderkey (the order key for the base table orders):

     CREATE HASH INDEX ord_hidx_3 (o_orderdate) ON orders
     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_3 AS
      SELECT o_orderkey, o_orderdate, orders.ROWID 
      FROM orders
      ORDER BY o_orderkey
     PRIMARY INDEX (o_orderkey);