Database trigger. A database trigger is procedural code that is automatically executed in response to certain events on a particular table or view in a database. The trigger is mostly used for maintaining the integrity of the information on the database.
Assisted Opening Knives. An assisted opening knife is a type of everyday carry knife that allows the user to open its blade with one hand by applying pressure to the thumb stud or the flipper. In the closed position, the blade is generally held in place by a torsion bar.
A folding or pocket knife is one that has a pivot between handle and blade, allowing the blade to fold into the handle. Most folding knives are small working blades, pocket knives are usually folding knives.Some folding knives have a locking mechanism 1  : The most tranditional and commonplace lock is the slip-joint.his type of knife is typically stronger and larger than a folding knife. Activities that require a strong blade, such as hunting or fighting, typically rely on fixed blade knives. Some famous fixed blade designs include the Ka-bar and Bowie knives.