13.7.5.11 SHOW CREATE TRIGGER Statement

SHOW CREATE TRIGGER trigger_name

This statement shows the CREATE TRIGGER statement that creates the named trigger. This statement requires the TRIGGER privilege for the table associated with the trigger.

mysql> SHOW CREATE TRIGGER ins_sum\G
*************************** 1. row ***************************
               Trigger: ins_sum
              sql_mode: ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,
                        NO_ZERO_IN_DATE,NO_ZERO_DATE,
                        ERROR_FOR_DIVISION_BY_ZERO,
                        NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
SQL Original Statement: CREATE DEFINER=`me`@`localhost` TRIGGER ins_sum
                        BEFORE INSERT ON account
                        FOR EACH ROW SET @sum = @sum + NEW.amount
  character_set_client: utf8
  collation_connection: utf8_general_ci
    Database Collation: latin1_swedish_ci
               Created: 2018-08-08 10:10:07.90

SHOW CREATE TRIGGER output has these columns:

Trigger: The trigger name.
sql_mode: The SQL mode in effect when the trigger executes.
SQL Original Statement: The CREATE TRIGGER statement that defines the trigger.
character_set_client: The session value of the character_set_client system variable when the trigger was created.
collation_connection: The session value of the collation_connection system variable when the trigger was created.
Database Collation: The collation of the database with which the trigger is associated.
Created: The date and time when the trigger was created. This is a TIMESTAMP(2) value (with a fractional part in hundredths of seconds) for triggers created in MySQL 5.7.2 or later, NULL for triggers created prior to 5.7.2.

Trigger information is also available from the INFORMATION_SCHEMA TRIGGERS table. See Section 24.3.29, “The INFORMATION_SCHEMA TRIGGERS Table”.