trigger


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Related to trigger: Trigger finger

trigger

Machinery a device that releases a spring-loaded mechanism or a similar arrangement

trigger

[′trig·ər]
(computer science)
To execute a jump to the first instruction of a program after the program has been loaded into the computer. Also known as initiate.
(electronics)
To initiate an action, which then continues for a period of time, as by applying a pulse to a trigger circuit.
The pulse used to initiate the action of a trigger circuit.
(ordnance)
A metallic item, part of the firing mechanism of a firearm, designed to release a firing pin by the application of pressure by the finger.

Trigger

Roy Roger’s horse. [TV: “The Roy Rogers Show” in Terrace, II, 260]
See: Horse

trigger

(database)
An action causing the automatic invocation of a procedure, for instance to preserve referential integrity. A triggers goes into effect when a user attempts to modify data with an insert, delete, or update command. A trigger can instruct the system to take any number of actions when a specified change is attempted. By preventing incorrect, unauthorized, or inconsistent changes to data, triggers help maintain the integrity of the database.

[Sybase SQL Server Release 10.0 Transact-SQL User's Guide].

trigger

(1) A mechanism that initiates an action when an event occurs such as reaching a certain time or date or upon receiving some type of input. A trigger generally causes a program routine to be executed.

(2) In a database management system (DBMS), a trigger is an SQL procedure that is executed when a record is added or deleted. It is used to maintain referential integrity in the database. A trigger may also execute a stored procedure. Triggers and stored procedures are built into DBMSs used in client/server environments. See intelligent database.

(3) A condition that initiates the harmful effects of a logic bomb such as many viruses and worms. Many forms of malicious software use particular dates as triggers. Some viruses count the number of infections and trigger their payloads at a specific number.
References in periodicals archive ?
com)-- Rohde & Schwarz, a leading manufacturer of test & measurement, communications and broadcasting equipment, has developed the industry's only digital oscilloscope that employs a real-time digital trigger.
As a rule of thumb, I've found that a good aftermarket trigger in the two-pound range will cut your average groups in half compared to a creepy standard trigger of six-pounds-plus.
Unfortunately for Y, the sole reason the DI triggers the AHYDO provisions is its selection of a less-than-optimal accrual period.
6--playing in full denial stances and positions when assigned to the Trigger.
REPORTING PERIOD: Usually 36 months, although can be triggered as soon as the industry loss hits the trigger point.
A neutron or another energetic particle triggers a bubble to form in a low-pressure trough of the ultrasound waves, he says.
As a result, the trigger press always remains the same.
First, shorten the release until the trigger hits your index finger at the first joint rather than the fingertip.
After some study I chose the HiperTouch EDT 3 duty trigger (HiperFire.
The other skill being ingrained is to give the trigger finger full forward movement to allow the trigger to reset.
Pulling the trigger allows the hammer to fly forward due to tension of the hammer spring and impact the firing pin that is housed in the bolt carrier assembly.
The stock AR-15 trigger system as designed by Eugene Stoner is reliable, but it has never been accused of being too light.