# Triggers & Events

- [Event Scheduler](https://mariadb.com/docs/server/server-usage/triggers-events/event-scheduler.md): Utilize the Event Scheduler in MariaDB Server to automate tasks. Learn how to create, manage, and schedule events to execute SQL statements at specified intervals or times.
- [Events Overview](https://mariadb.com/docs/server/server-usage/triggers-events/event-scheduler/events.md): An introduction to creating and managing scheduled events, which are named database objects containing SQL statements to be executed by the Event Scheduler.
- [ALTER EVENT](https://mariadb.com/docs/server/server-usage/triggers-events/event-scheduler/alter-event.md): Learn how to modify the characteristics of an existing event, such as its schedule, body, or enabled status, without dropping and recreating it.
- [Event Limitations](https://mariadb.com/docs/server/server-usage/triggers-events/event-scheduler/event-limitations.md): A list of restrictions associated with the Event Scheduler, including the inability to return result sets and specific date range limitations.
- [Triggers](https://mariadb.com/docs/server/server-usage/triggers-events/triggers.md): Automate actions in MariaDB Server with triggers. Learn how to create and manage triggers that execute automatically before or after data modifications, ensuring data integrity and business logic enfo
- [Trigger Overview](https://mariadb.com/docs/server/server-usage/triggers-events/triggers/trigger-overview.md): Complete MariaDB triggers overview: BEFORE/AFTER INSERT/UPDATE/DELETE timing, CREATE TRIGGER syntax, FOLLOWS|PRECEDES ordering, and DROP/SHOW TRIGGERS.
- [CREATE TRIGGER](https://mariadb.com/docs/server/server-usage/triggers-events/triggers/create-trigger.md): Complete CREATE TRIGGER reference: OR REPLACE, DEFINER, IF NOT EXISTS, FOLLOWS/PRECEDES options for BEFORE/AFTER INSERT, UPDATE, or DELETE triggers rules.
- [Trigger Limitations](https://mariadb.com/docs/server/server-usage/triggers-events/triggers/trigger-limitations.md): Understand the constraints of triggers, such as the prohibition of statements that return result sets or explicitly start/commit transactions.
- [Triggers and Implicit Locks](https://mariadb.com/docs/server/server-usage/triggers-events/triggers/triggers-and-implicit-locks.md): Explains how triggers can cause implicit locks on referenced tables during the execution of a statement, potentially affecting concurrency.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://mariadb.com/docs/server/server-usage/triggers-events.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.