How to Connect Databricks from dbt Cloud?

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May 2, 2024

How to Connect Databricks from dbt Cloud?

To connect Databricks from dbt Cloud, first sign in to dbt Cloud. Then, select the Settings icon and choose Account Settings. After that, select New Project and enter a unique name for the project. Once done, select Databricks for Choose a connection and select Next. Finally, enter a unique name for the connection.

  • dbt Cloud: dbt Cloud is a web-based application that provides a user interface for working with dbt, including features for developing, testing, and deploying dbt projects.
  • Databricks: Databricks is a data analytics platform built to help companies process large amounts of data and uncover insights through machine learning and AI.
  • Connection: In the context of dbt and Databricks, a connection refers to the setup that allows data to be transferred between the two platforms.

How to Connect to Databricks from a Databricks Workspace?

To connect to Databricks from a Databricks workspace, first log in to the Databricks workspace. Then, select the Data Science & Engineering persona in the left navigation bar. After that, select Compute and choose the cluster to connect to. Then, select Advanced options near the bottom of the page and scroll down to select JDBC/ODBC. Finally, copy the Server Hostname value and the HTTP Path value.

  • Databricks Workspace: Databricks Workspace is a collaborative environment for data scientists, data engineers, and business analysts to work together.
  • JDBC/ODBC: JDBC/ODBC are protocols used to connect to a database. JDBC is used for Java applications, while ODBC is used for other programming languages.
  • Server Hostname and HTTP Path: These are specific details required to establish a connection with a Databricks cluster from an external source.

What are the Design Choices of the dbt-Databricks Adapter?

The dbt-Databricks adapter has several design choices. These include defaulting to Delta format, using merge for incremental models, running expensive queries with Photon, and support for Unity Catalog.

  • Delta Format: Delta format is a storage layer that provides ACID transactions, scalable metadata handling, and unifies streaming and batch data processing.
  • Merge for Incremental Models: This design choice allows for the efficient updating of existing data in a table, without having to reprocess the entire dataset.
  • Photon: Photon is a vectorized query engine built by Databricks to handle expensive queries.
  • Unity Catalog: Unity Catalog is a feature of Databricks that provides a unified data catalog across all Databricks workspaces.

What is the Purpose of Connecting Databricks with dbt?

Connecting Databricks with dbt allows data professionals to leverage the powerful data processing capabilities of Databricks along with the transformation capabilities of dbt. This connection enables the efficient processing and transformation of large datasets, leading to more accurate and insightful data analysis.

  • Data Processing: Data processing refers to the conversion of raw data into meaningful information through a process.
  • Data Transformation: Data transformation is the process of converting data from one format or structure into another format or structure.
  • Data Analysis: Data analysis is the process of inspecting, cleaning, transforming, and modeling data with the goal of discovering useful information, informing conclusions, and supporting decision-making.

What are the Benefits of Using Databricks and dbt Together?

Using Databricks and dbt together offers several benefits. It allows for efficient data processing and transformation, leading to more accurate and insightful data analysis. It also enables data professionals to leverage the powerful capabilities of both platforms, leading to improved productivity and better business outcomes.

  • Efficient Data Processing and Transformation: By using Databricks and dbt together, data professionals can process and transform large datasets more efficiently.
  • Powerful Capabilities: Both Databricks and dbt offer powerful features that can help data professionals perform complex data analysis tasks more easily.
  • Improved Productivity: The combination of Databricks and dbt can lead to improved productivity, as data professionals can leverage the strengths of both platforms.

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