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Showing content from https://docs.databricks.com/aws/en/notebooks/code-assistant below:

Get coding help from Databricks Assistant

This article describes how you can use Databricks Assistant to help you code and debug your notebooks, and provides tips on how to get the most out of the Assistant.

Databricks Assistant is a context-aware AI assistant that you can interact with using a conversational interface, making you more productive inside Databricks. You can describe your task in English and let the assistant generate Python code or SQL queries, explain complex code, and automatically fix errors. The assistant uses Unity Catalog metadata to understand your tables, columns, descriptions, and popular data assets across your company to provide personalized responses.

Databricks Assistant can help you with the following tasks:

• Generate code.
• Debug code, including identifying and suggesting fixes for errors.
• Transform, optimize, and refactor code.
• Explain code.
• Help you find relevant information in the Databricks documentation.

For information about enabling and using Databricks Assistant, see Enable and try Databricks Assistant. For general information about Databricks Assistant, see Databricks AI-powered features.

In a notebook, Databricks Assistant is available in the Assistant pane or inline in a code cell.

To use Databricks Assistant directly in a code cell, press Cmd+I on MacOS or Ctrl+I on Windows. A text box appears in the cell. You can type a question or comment in English and then press Enter (not Shift+Enter, like you would to run a cell) to have Assistant generate a response.

Slash commands are a shortcut for creating common prompts.

When you use /fix or /doc, in the diff window select Accept to accept the proposed changes or Reject to keep the original code. If you accept the proposed code, the code does not automatically run. You can review the code before running it. If the generated code is not what you wanted, try again by adding more details or information to your comment. See Tips to improve Assistant responses.

Get detailed explanations of code snippets. Use the /explain prompt and include terms like “be concise” or “explain code line-by-line” to request the level of detail that you want. You can also ask Databricks Assistant to add comments to the code.

For code autocomplete, performance may be better using the Assistant pane than in a notebook cell.

Assistant closes automatically if you Accept or Reject the code it generated.

To quickly reference tables in Assistant prompts, use the @ (at) symbol.

Databricks Assistant helps with code, both SQL and Python:

• Edit mode, which works across a notebook to make fixes and updates to multiple cells.
• AI-based autocomplete in Databricks notebooks, the SQL editor, and the file editor.
• Data filtering with natural-language prompts.
• Code debugging with Diagnose Error.

Edit mode applies AI-generated suggestions across multiple cells in your notebook from a single prompt.

To use edit mode:

1. With a notebook open, click the Assistant icon in the top right of the screen.

2. In the Assistant pane, click Edit at the bottom of the prompt box.

3. In edit mode, enter a prompt just as you would in chat mode.

   Assistant analyzes your notebook and surfaces suggestions inline in the cells where changes are needed.

4. After generating suggestions, you can review them directly in the notebook or through the Assistant panel. Click any cell in the Assistant panel to jump to that part of the notebook.

5. Accept or reject edits individually, either inline in the notebook or from the Assistant panel. To apply all suggestions at once, click Accept All or Reject All.

As you type, suggestions automatically appear. Press Tab to accept a suggestion. To manually trigger a suggestion, press Option+Shift+Space (on macOS) or Control+Shift+Space (on Windows).

AI-based autocomplete can also generate code from comments:

Use Databricks Assistant to filter data outputs with natural language prompts.

To filter outputs with natural language, click the Filter icon in the output table and enter a prompt. For example, as in the animated example following, you can prompt “Show me only males over 70.”

To use Databricks Assistant to fix code, do any of the following:

• Ask a question in the Assistant pane.
• Click the Diagnose Error button that appears in the cell results when an error occurs.
• Click Debug to interactively step through the code line-by-line, set breakpoints, inspect variables, and analyze a program's execution.

The tabs below show Diagnose error examples in Python and SQL code:

• Python
• SQL

When you click Diagnose error, Assistant automatically runs a `/fix` prompt.

When you click Diagnose error, Assistant automatically runs /fix.

Using the slash prompt /optimize, evaluate and optimize Python, PySpark, and SQL code.

1. In a notebook cell or the SQL editor, click the Assistant icon.
2. In the prompt box, type /optimize, and click the Generate button.
3. To use the optimization suggestions from Assistant, click Accept.

Here's how /optimize helps with code:

• Pre-run warnings: Yellow underlines highlight opportunities to optimize your query before execution, such as when you are not filtering on a partition column. Hover over the underlined text to view optimization suggestions.
• Post-run analysis: After you run the code, click the Optimize button.
• Table-level suggestions: For example, when users create a table, they receive a hint recommending CREATE TABLE CLUSTER BY AUTO.

When code returns errors, Quick Fix automatically recommends fixes for basic errors that can be fixed in a single line change.

Click Accept and run to make the recommended fix and continue running your code:

The following articles contain additional information about using Databricks Assistant:

• What is Databricks Assistant?
• Enable and try Databricks Assistant
• Databricks AI features trust and safety
• Measure Databricks Assistant impact

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