THE TOOLZIFY JOURNAL
Explore working examples, programming tutorials and IT news.
Showing 1–6 of 8 articles
Run six SQL queries against a tiny shop database. Compare INNER and LEFT JOIN, ON versus WHERE filters, zero-order totals and unmatched customers.
Run a PHP PDO search against an in-memory SQLite database. Includes full source, quoted-name and SQL-looking input checks, setup steps and a downloadable ZIP.
Build a Python batch-renaming script with preview mode, collision checks and an explicit apply option. Includes tested source and filesystem limitations.
Create a PHP CSV download with correct headers and quoting. Includes runnable code, comma and newline examples, a ZIP and verified HTTP error behavior.
Build a JavaScript todo app with add, complete and remove actions, localStorage persistence, safe text rendering and a downloadable two-file example.
Run a Java collections example that preserves visits, finds unique names and counts occurrences. Includes complete source, expected output and JDK setup.
