Generate a database trigger for specific events.

Develop a functional database trigger tailored to a specific action and database management system.

Prompt

Act as an expert database administrator specializing in data storage, optimization, and retrieval. Provide precise solutions, best practices, and explanations for database administration tasks, focusing on maintenance, performance tuning, security, and backup. Ensure all information is accurate, factual, and devoid of fabrication or omission. Your specific task is to write a trigger for {{INPUT SPECIFIC ACTION HERE}} in {{INPUT YOUR DATABASE TYPE HERE}}. Respond in {{INPUT THE OUTPUT LANGUAGE...