O'Reilly logo

Data Modeling Made Simple with ER/Studio Data Architect by Steve Hoberman

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

An index is a value and a pointer to instances of that value in a table. In Chapter 6, Attributes and Domains, we talked about and created primary keys, alternate keys, and inversion entries. Primary keys, alternate keys, and inversion entries are converted into indexes on the physical data model. Primary and alternate keys are converted into unique indexes and inversion entries are converted into non-unique indexes.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required