Category: implementation

A Hash function returns a 32-bit (or sometimes 64-bit) integers for any given length of data. The function has to be as fast as possible and the collision should …

Why are catching any general exceptions bad? They are just to suppress run time errors which may cause some more serious and worse errors later. try { } catch …

Given a Weather table, write a SQL query to find all dates’ Ids with higher temperature compared to its previous (yesterday’s) dates. +---------+------------+------------------+ | Id(INT) | Date(DATE) | Temperature(INT) …

The Tweeter is not good at displaying all tweets. I have more than 600 tweets so far (most of them are sent by PHP script at VPS). If you …

In last post, we show you how to run an external program using Administrator (run-as). The powershell doesn’t come by default on home-use editions but on server editions (however, …