This section provides a walk-through to writing ODBC data access code to Cassandra in R, using the RODBC module.

See NoSQL Database for more information on the available API objects and any API limitations or requirements. See SQL Compliance for the SQL syntax.

Connecting from R

See Getting Started for the prerequisite information you need to deploy the driver and configure the connection to Cassandra.

Dependencies describes the necessary steps to install RODBC. Once it is prepared, refer to Connecting to connect to Cassandra.

Executing SQL

Use RODBC functions to execute SQL on Cassandra:

• See Querying Data to execute SELECT statements and iterate over the results.
• See Modifying Data to execute other SQL data manipulation statements.
• See Parameterized Statements to execute parameterized statements. Parameterized statements provide a means to efficiently execute queries more than once and to mitigate SQL injection attacks.

Executing Stored Procedures

See Executing Stored Procedures to execute stored procedures as SQL statements.