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#database-migrations

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Ejaz Arain1d ago · 4 min read

pgrecon, an Oracle to PostgreSQL assessment that never connects to your database

First published on the Tech Style blog. Most Oracle to PostgreSQL projects are priced before anyone has read the code. Someone counts tables and guesses at the PL/SQL, and the expensive surprises turn

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Diwakar ExeAug 26 · 4 min read

Securing Sensitive Financial Records During Microsoft Azure Migration with Azure Data Migration Service

Financial records require protection at every stage of a cloud migration. Customer information, transaction histories, account data, and other sensitive records must remain secure while databases move

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Uttam MahataJul 5 · 8 min read

Migrating MongoDB Data to Atlas: A Practical Field Guide

Sooner or later, almost every team ends up moving data between MongoDB deployments — standing up a new production cluster on Atlas, consolidating a staging box into prod, or syncing a partner's on-pre

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Jeremy LongshoreJul 1 · 10 min read

Making a Youth Sports App COPPA-Compliant: The Real Process From Question to Production

When you're building an app that tracks data for children under 13, there's a moment where you realize: this needs to be legally bulletproof before it sees a single real user. For Hustle, our youth so

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Sagar ThosarMay 20 · 19 min read

Oracle to AWS PostgreSQL: The Migration Gotchas Nobody Puts in the Runbook

The full load finished - Row counts matched -DMS showed zero errors. The team went home feeling like the hard part was over. By 9 AM, the application was throwing errors nobody had seen before. Querie

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DeploynixApr 17 · 9 min read

Recovering From a Failed Database Migration in Production

You deploy your latest release. The deployment log is scrolling through your hooks, and then you see it: SQLSTATE[42S21]: Column already exists or worse, the migration runs halfway through and the process times out. Your database is now in a partiall...

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Payal PorwalFeb 24 · 5 min read

Master the Top SQL Queries: Clear Explanations + Practical Examples

1️⃣ SELECT (Basic Data Fetching) 🔹 What it does: Fetch data from a table. 🔹 Syntax: SELECT column1, column2 FROM table_name; 🔹 Example: SELECT name, salary FROM employees; 🔹 Use Case: Showing u

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Danny CrastoJan 23 · 1 min read

Missing initial migration

Using the Flask-Migrate extension you can create database migrations for your application. Flask application’s typically auto-create db tables on start So running flask db upgrade you’ll get: INFO [alembic.env] No changes in schema detected. To cr...

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LeenarexDec 11, 2025 · 3 min read

What are the steps to migrate from Oracle to PostgreSQL quickly?

Migrating from Oracle to PostgreSQL offers significant cost advantages, improved flexibility, and freedom from vendor lock-in. By following a structured approach, enterprises can complete database modernization in weeks instead of months. This articl...

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Johanan Oppong AmoatengNov 29, 2025 · 6 min read

Rebuilding a Legacy PHP/MySQL Application in Django: Lessons From My First Legacy Database Migration

Rebuilding a legacy system sounds straightforward until you’re inside it. I was recently contracted to rebuild an old PHP/MySQL application using Django. What made it particularly interesting was that this was my first time ever migrating a legacy da...

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