How do I see all MySQL events that are running on my database?

Show events with more details

SELECT * FROM information_schema.EVENTS

The information_schema.EVENTS table is where to start.

USE information_schema;

DESCRIBE EVENTS;
+----------------------+---------------+------+-----+---------------------+-------+
| Field                | Type          | Null | Key | Default             | Extra |
+----------------------+---------------+------+-----+---------------------+-------+
| EVENT_CATALOG        | varchar(64)   | YES  |     | NULL                |       |
| EVENT_SCHEMA         | varchar(64)   | NO   |     |                     |       |
| EVENT_NAME           | varchar(64)   | NO   |     |                     |       |
| DEFINER              | varchar(77)   | NO   |     |                     |       |
| TIME_ZONE            | varchar(64)   | NO   |     |                     |       |
| EVENT_BODY           | varchar(8)    | NO   |     |                     |       |
| EVENT_DEFINITION     | longtext      | NO   |     | NULL                |       |
| EVENT_TYPE           | varchar(9)    | NO   |     |                     |       |
| EXECUTE_AT           | datetime      | YES  |     | NULL                |       |
| INTERVAL_VALUE       | varchar(256)  | YES  |     | NULL                |       |
| INTERVAL_FIELD       | varchar(18)   | YES  |     | NULL                |       |
| SQL_MODE             | varchar(8192) | NO   |     |                     |       |
| STARTS               | datetime      | YES  |     | NULL                |       |
| ENDS                 | datetime      | YES  |     | NULL                |       |
| STATUS               | varchar(18)   | NO   |     |                     |       |
| ON_COMPLETION        | varchar(12)   | NO   |     |                     |       |
| CREATED              | datetime      | NO   |     | 0000-00-00 00:00:00 |       |
| LAST_ALTERED         | datetime      | NO   |     | 0000-00-00 00:00:00 |       |
| LAST_EXECUTED        | datetime      | YES  |     | NULL                |       |
| EVENT_COMMENT        | varchar(64)   | NO   |     |                     |       |
| ORIGINATOR           | bigint(10)    | NO   |     | 0                   |       |
| CHARACTER_SET_CLIENT | varchar(32)   | NO   |     |                     |       |
| COLLATION_CONNECTION | varchar(32)   | NO   |     |                     |       |
| DATABASE_COLLATION   | varchar(32)   | NO   |     |                     |       |
+----------------------+---------------+------+-----+---------------------+-------+

SELECT EVENT_NAME FROM EVENTS WHERE EVENT_SCHEMA = 'your_database_name';

its simple SHOW EVENTS lists all of the events in the current schema

To see events for a specific schema, use the FROM clause. For example, to see events for the test schema, use the following statement:

SHOW EVENTS FROM test;

SHOW EVENTS\G

Which will bring you the list of all existing events. For Show Events Syntax: http://dev.mysql.com/doc/refman/5.1/en/show-events.html