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How to use CQL to display rows from an unordered partitioner.

Displaying rows from an unordered partitioner with the TOKEN function.

This tutorial shows the difference between these consistency levels and the number of replicas that participate to satisfy a request. How to alter a table to add or delete columns or change table properties.Īdding columns to a user-defined type with the ALTER TYPE command. How to batch insert or update data into a table.Īn index provides a means to access data in Cassandra using attributes other than the partition key for fast, efficient lookup of data matching a given condition. How to insert data into a table with either regular or JSON data. How to create collections and user defined types (UDTs) in tables.

Introduction to Cassandra Query LanguageĬassandra Query Language (CQL) is a query language for the Cassandra database.ĬQL provides an API to Cassandra that is simpler than the Thrift API.Ī brief description on starting cqlsh on Linux and Mac OS X.Ĭreating a keyspace is the CQL counterpart to creating an SQL database.