Database Reference
In-Depth Information
Summary
In this chapter, we've explored data access patterns for compound primary key tables, and
used our new knowledge to expose a paginated view of a user's most recent status updates.
We discussed how to query range slices of clustering column values, and how to reverse
the clustering order at both table creation time and at query time. We reinforced our under-
standing of the CQL
SELECT
queries by performing the intricate task of paginating over
all the rows in our status updates table, and then applied our new compound primary key
toolkit to a totally different problem, the autocompletion of hashtags.
primary key data modeling to the task of describing relationships that do not have the clear
parent-child structure of users and status updates. We'll also go beyond primary key-based
data access, exploring the use of secondary indexes to look up data using any column we
wish.
