Stop fetching entire rows to grab a foreign key you already have, and let the database handle iteration instead of your app.

A critical root exploit in Exim is spreading—but the developers patched it months ago. Keep your mail server updated.

NULL doesn't behave like you think it does. Nullable primary keys are meaningless, NULL values can't be joined, and NULL = NULL returns NULL—not true.

Use psycopg2's server-side cursors in Django to stream enormous result sets without loading them into memory.

Django's QuerySet caching and default fetch behavior can silently consume gigabytes of memory on large result sets.

Stop writing result[4]—psycopg2.3 beta now lets you fetch query results as named tuples with intuitive dot notation.

PostgreSQL 9.0's streaming replication will be a game-changer for small businesses managing critical data—finally making high availability something a casual…

Users claim they don't need replication—until they lose a day's data.

What does "web scale" actually mean? Let's move past the marketing speak and pin down some numbers for what constitutes truly high-volume database performance.

Django connections pile up in "Idle in Transaction" state because it skips COMMIT for read-only queries. Here's why it happens and how to fix it.