Database Query

Query the puda database using the puda CLI with SQL.

Purpose

This skill enables querying the puda database: understanding its schema and executing SQL statements via the puda CLI.

When to Use

Load this skill when:

• Users want to query or inspect puda database data
• Users need to understand table and column structure before writing SQL
• Running ad-hoc SQL (e.g. filtering commandlog by commandname)

Required Resources

IMPORTANT: Before writing or running SQL, consult the schema:

1. Schema: Run puda db schema to see tables, columns, and types. Use this to write correct SQL and avoid invalid column/table names.

Do not assume table or column names; confirm them with puda db schema first.

When getting data from biologic machine command: data is always in payload at payload["response"]["data"].

Commands

• puda db schema – Print database schema (tables and columns). Use to understand structure before writing SQL.
• puda db exec "<SQL>" – Execute a single SQL statement. Pass the SQL as a quoted string.

Example

puda db exec "SELECT * FROM command_log WHERE command_name='start'"

Instructions

1. Consult schema: Run puda db schema to understand tables and columns before writing SQL.
2. Execute SQL: Use puda db exec "<SQL>" with the SQL in double quotes. Escape internal quotes as needed for your shell.
3. Parse output: Read command output to confirm success or to use result data in subsequent steps.