Cassandra

Driver Options

  • Posit Professional Drivers - Workbench, RStudio Desktop Pro, Connect, or Shiny Server Pro users can download and use Posit Professional Drivers at no additional charge. These drivers include an ODBC connector for Apache Impala. Posit delivers standards-based, supported, professional ODBC drivers. Use Posit Professional Drivers when you run R or Shiny with your production systems. See the Posit Professional Drivers for more information.

Package Options

The odbc package, in combination with a driver, provides DBI support and an ODBC connection.

Connection Settings

There are settings needed to make a connection:

  • Driver - See the Drivers section for setup information
  • Host - A network path to the database server
  • Port - Should be set to 9042
  • Keyspace - Data replication namespace (not required)
  • AuthMec - Use 0 for no authentication, and 1 for user name/password
  • UID - The user’s network ID or server local account
  • PWD - The account’s password
con <- DBI::dbConnect(odbc::odbc(),
                      Driver   = "[your driver's name]",
                      Host     = "[your server's path or name]",
                      Port     = 9042,
                      Keyspace = "[your keypace's name]",
                      AuthMech = 1,
                      UID      = rstudioapi::askForPassword("Database user"),
                      PWD      = rstudioapi::askForPassword("Database password")
                      )
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