To list databases in PostgreSQL, connect with psql and type \l. That prints every database on the server with its owner, encoding and access privileges. If you would rather use SQL, SELECT datname
Fri Oct 09 2026 · 7 min read · 0 views
Yes, PostgreSQL can store images. You have three ways to do it: a bytea column, large objects, or a path or URL pointing at a file kept elsewhere. For most apps, storing small images in bytea is fine
Fri Oct 09 2026 · 7 min read · 0 views
CREATE TABLE IF NOT EXISTS in SQLite creates the table only when no table of that name exists, and does nothing, with no error, when one does. That makes it safe to run on every app start. It also
Fri Oct 09 2026 · 7 min read · 0 views
Choose SQL when your data has clear relationships and you need joins, transactions and a fixed shape. Choose NoSQL when your data is document-shaped, key-based or enormous and you read it by one key
Fri Oct 09 2026 · 8 min read · 0 views
There are eight database types worth knowing in 2026: relational, document, key-value, wide-column, time-series, graph, search and vector. Each stores data in a different shape and is fast at a
Fri Oct 09 2026 · 8 min read · 0 views