# Success Stories: Case Studies

> Dozen's of case studies and success stories surrounding PostgreSQL deployments with Command Prompt.

## Healthtech / Health Care

  * The 5 TB Data Diet: Shrinking a Database Until It Fit Its New Cloud
  * Eighteen Years on Call: From PostgreSQL 8.1 to 17, and a Nine-Minute Report Cut to 30 Seconds
  * The Migration the Monitoring Could Not See: PostgreSQL 11 to AlloyDB, Live
  * Won on Features, Kept on Plumbing: Fifteen Years of Enterprise Identity Federation Behind a National Medical-Coding Platform
  * From Zero Backups to a Safety Net Under a Live EMR
  * Minutes of Downtime, No Rewrite: Lifting a 13-Year Healthcare SaaS onto Google Cloud and PostgreSQL 16



## Fintech and Financial

  * Two Hours, Zero Surprises: Retiring End-of-Life PostgreSQL Inside a Bank's Change Window
  * Thirteen Minutes on a Saturday: Disaster Recovery a Hedge Fund Can Actually Trust
  * One Outage, Zero Recurrences: Retiring PostgreSQL's Hidden Capacity Limits at a Global Financial Services Firm
  * Audit Data Grows Forever. The Databases Stopped Growing With It: Partitioning, Archiving, and Upgrading a Core-Banking Fleet
  * From Weeks to 0.8 Seconds: Planner Engineering at Billions of Rows



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## General Industries

  * Restored to the Millisecond: An 18 TB Point-in-Time Recovery, Straight Through an Unreleased PostgreSQL Bug
  * Breaking the 20 TB Ceiling: A Zero-Data-Loss Exit from AWS RDS to Self-Managed PostgreSQL
  * 240 IDs From the Wall: A Zero-Downtime bigint Rescue for a Two-Billion-Row Table
  * Every Emergency Resolved, None Caused by PostgreSQL: Fifteen Years Running the Full Stack for a Vacation-Rental Marketplace
  * Fifteen Years, Seven Emergencies, Zero Data Loss: Managed PostgreSQL Behind a Major Public Library Catalog

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