Cassandra Connections

Cassandra DB is a distributed system for deployment of a large number of nodes across multiple data centers. For more information, see https://cassandra.apache.org/.

ヒント

This connection is in early preview. It is read-only and available only in SaaS product editions. For more information on early previews, see Early Preview Connection Types.

Limitations and Requirements

注記

During normal selection or import of an entire table, you may encounter an error indicating a problem with a specific column. Since some tables require filtering based on a particular column, data from them can only be ingested using custom SQL statements. In this case, the problematic column can be used as a filter in the WHERE clause of a custom SQL statement to ingest the table.

For more information, please consult the CData driver documentation for the specific table.
For more information on using custom SQL, see Create Dataset with SQL.

注記

For filtering date columns, this connection type supports a set of literal functions on dates. You can use these to reduce the volume of data extracted from the database using a custom SQL query. For more information, see the pg_dateliteralfunctions.htm page in the driver documentation for this connection type.

Supports Basic (username/password) authentication.

Create Connection

via Cloud Portal

When you create the connection, please review the following properties and specify them accordingly:

Connection Property	Description
Port	By default, the port number is set to 9042. You can set to any required value. For more information, contact your administrator.
Host	Name of the host
Database	The database you want to read
Connect String Options	The following default value sets the connection timeout in seconds: Timeout=0; Setting this value to `0` disables timeouts.
Default Column Data Type Inference	Leave this value as `Enabled`.

For more information, see the driver documentation https://cdn.cdata.com/help/RCG/jdbc/ .

via API

Depending on your product edition, you can create connections of this type. Key information:

"vendor": "cassandradb",
"vendorName": "Cassandra DB",
"type": "jdbc"

For more information, see

Coming soon.

Data Type Conversions