.. meta:: :description: Learn about the Database Viewer tool in Neuron Explorer for querying and exploring profiling data using SQL or natural language queries. :date-modified: 01/27/2026 .. _database-viewer-overview: Database Viewer ===================== The Database Viewer offers an interactive interface providing visibility to all underlying data that the Neuron Explorer processes from a :doc:`NEFF ` and NTFF. Use this tool to develop your own analyses, examine profiling data stored in database tables, or run ad-hoc queries during performance analysis. You can access this data through natural language queries or raw SQL. .. image:: /tools/profiler/images/database-viewer.png Table Selection and Schema Inspection ------------------------------------- When the tool loads, it fetches the list of available database tables. Select a table from the dropdown to view its schema. The schema table displays: * **Field Name** - Column name (hover for description tooltip). * **Data Type** - The data type of the field. * **Required** - Whether the field is required. * **Unit** - Measurement unit (if applicable). * **Example** - Example value for the field. Querying Data ------------- The query input supports two modes: 1. **SQL queries** - Write standard SQL starting with ``SELECT``. 2. **Natural language queries** - Describe what you want in plain English. Examples: Natural language query to get the first 5 rows:: Get the first 5 rows SQL query to filter with conditions:: SELECT field_name FROM table_name WHERE condition Press **Enter** or click **Execute Query** to run. Use **Shift+Enter** for multi-line input. Query Results ------------- Results appear below the query input in reverse chronological order (newest first). Each result shows: * The original query text. * The generated SQL (for natural language queries). * A scrollable results table. Click **Export CSV** to download any result set as a CSV file. .. image:: /tools/profiler/images/database-viewer-query-result.png