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 sheath knife is a fixed-bladed knife that fits in a sheath of leather or other material such as nylon or kevlar. The sheath is used to protect the knife and as a carrier. The blades vary in size, shape and construction. In Australian law, sheath knife has a different definition. In this case, they are a type of non-folding, fixed-blade knife which has a sheath which withdraws into its handle, thus giving something of the effect of an out-the-front flick knife.