Postgres tools and fix guides

• Connection string checker

  Pooler or direct, 5432 or 6543, sslmode, user format, and matching pg_dump and psql commands. Runs in your browser.

• Supabase project paused

  Resume it, or download and restore its backup.

• Supabase egress exceeded

  What exceed_egress_quota means and how to cut egress.

• Neon compute limit and cold starts

  Why a compute is suspended and how to avoid slow first queries.

• Supabase pg_dump

  The right connection string and commands to export a Supabase database.

• Postgres error codes

  Causes and fixes for the SQLSTATE errors apps hit most.