Show all triggers in a MySQL database

A fine-toothed comb for triggers

Trigger-logical components

In dissecting a MySQL trigger, you're playing detective with its components and lifecycle. The EVENT_MANIPULATION is your clue to the DML operation (INSERT, UPDATE, DELETE) firing the trigger, and ACTION_STATEMENT is the plot twist detailing the operation to be performed.

Sift through the names

On a wild goose chase? Narrow it down with LIKE to filter triggers by their names or the corresponding tables:

SHOW TRIGGERS LIKE '%mystery%'; -- This is our mystery!
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This reveals triggers related to our "mystery" operations, giving you a magnifying glass on your database's secrets.

Multi-word search

Got multiple databases (schemas)? You can dive into the specific TRIGGER_SCHEMA:

SELECT * FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_SCHEMA = 'DB-crimeScene'; -- Yeah, we named our DB 'crimeScene'
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Just replace 'DB-crimeScene' with your actual intriguing database name.

A smoother management experience

Line 'em up!

For an at-a-glance understanding, line up those triggers by name, event, or table:

SELECT * FROM INFORMATION_SCHEMA.TRIGGERS 
ORDER BY EVENT_OBJECT_TABLE, EVENT_MANIPULATION, TRIGGER_NAME; -- Even triggers need organization, folks!
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Triggers presented like this create a quick reference map of your tables and their trigger companions.

The artful Workbench approach

GUI fans, MySQL Workbench is your playground that offers a "Triggers" tab. Navigate to your schema, access the "Triggers" tab, and behold your triggers in their visual glory.

Fall into the rabbit hole

When tangled in the web of complex databases, beware of the cascade effect of triggers. If trigger actions in one table cause updates in another table laden with more triggers, it's Alice in Wonderland all over again. Know your trigger paths before you chase the rabbit!

Trigger, but future-proof

Upgrade, not downgrade

MySQL versions matter. Check compatibility if upgrading MySQL servers or porting databases. You don't want the shiny new version to break your hard-earned triggers.

Measure the impact

As Spiderman's Uncle said, with great trigger power, comes great need to check for performance. Monitor performance after meddling with triggers! Maintain balance between efficiency and automations.

Backup before you back-out

Prepping for a database backup? Include the trigger definitions too. You can do this by using mysqldump with the --triggers flag. No automation goes off the record!