Connect to Hyper-Converged Database (HCD)
When you develop applications that interact with your Hyper-Converged Database (HCD), you must connect to it programmatically through clients or drivers.
HCD offers several methods to connect including the Data API clients and DataStax-compatible Cassandra drivers. Depending on your use case, you might use one or more of these options.
| Use case | Requirements | Recommended methods |
|---|---|---|
Application development |
Use an HCD vector database |
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Use an HCD non-vector database |
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Other |
Migration and bulk loading |
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Apache Spark with Scala in spark-shell seamlessly connects to and accesses your HCD tables for advanced data analysis. |
Data API
Use the Data API to work with HCD vector databases, including commands for creating collections and tables, loading data, querying data, and more.
You can access the Data API over HTTP or through the Data API clients.
If you’re new to the Data API, try the quickstart for collections or the quickstart for tables for a demo of some common operations.
For detailed Data API and client reference material, see Get started with the Data API.
Clients
You can use the Data API clients to access all Data API commands. You can also connect to the Data API over HTTP.
| Language | Client | Version | Dependency | Documentation |
|---|---|---|---|---|
Python |
Python 3.8 or later |
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TypeScript |
Node.js 18 or later |
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Java |
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Java 17 or later (21 recommended) |
If you’re new to the Data API, try the quickstart for collections or the quickstart for tables for a demo of some common operations.
For detailed Data API and client reference material, see Get started with the Data API.
Drivers
You can use drivers to interact with your HCD databases, including sending Cassandra Query Language (CQL) statements.
The following drivers are compatible with HCD:
| Language | Driver | Latest version | Documentation |
|---|---|---|---|
C++ |
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C# |
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Java |
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Node.js |
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Python |
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Scala |
For more information about drivers, see Cassandra drivers supported by DataStax.
cqlsh
Because Hyper-Converged Database (HCD) is powered by Apache Cassandra®, you can use Cassandra Query Language (CQL) to programmatically interact with your databases through cqlsh or a driver.
For more information, see Connect to Hyper-Converged Database (HCD) with cqlsh.
DataStax Bulk Loader
The DataStax Bulk Loader (DSBulk) supports large data uploads and migrations. For more information, see the DataStax Bulk Loader reference.
Mission Control
Mission Control provides a web-based interface for managing your HCD clusters. It is best for managing your clusters and performing cluster operations.
For application development, fine-grained data manipulation, and nuanced searches, you must use a programmatic approach.
For more information, see Mission Control.
