Oracle 5.0 Reference Manual page 1221

lists the triggers currently defined for tables in a database (the default database
SHOW TRIGGERS
unless a clause is given). This statement returns results only if you have the
FROM
privilege. It was implemented in MySQL 5.0.10. The
names to match and causes the statement to display triggers for those tables. The
be given to select rows using more general conditions, as discussed in
Statements".
SHOW
For the trigger
ins_sum
shown here:
mysql> SHOW TRIGGERS LIKE 'acc%'\G
*************************** 1. row ***************************
Trigger: ins_sum
Event: INSERT
Table: account
Statement: SET @sum = @sum + NEW.amount
Timing: BEFORE
Created: NULL
sql_mode:
Definer: myname@localhost
Note
When using a
matched (expr) is compared with the name of the table on which the trigger is
declared, and not with the name of the trigger:
mysql> SHOW TRIGGERS LIKE 'ins%';
Empty set (0.01 sec)
A brief explanation of the columns in the output of this statement is shown here:
•
Trigger
The name of the trigger.
•
Event
The event that causes trigger activation: one of 'INSERT', 'UPDATE', or 'DELETE'.
•
Table
The table for which the trigger is defined.
•
Statement
The statement to be executed when the trigger is activated. This is the same as the text shown in the
ACTION_STATEMENT
•
Timing
One of the two values
•
Created
Currently, the value of this column is always NULL.
• [495]
sql_mode
The SQL mode in effect when the trigger executes. This column was added in MySQL 5.0.11.
•
Definer
The account that created the trigger. This column was added in MySQL 5.0.17.
Syntax
SHOW
as defined in Section 18.3, "Using
[896] clause with
LIKE
column of INFORMATION_SCHEMA.TRIGGERS.
or 'AFTER'.
'BEFORE'
1201
[896] clause, if present, indicates which table
LIKE
Section 19.18, "Extensions to
Triggers", the output of this statement is as
TRIGGERS, the expression to be
SHOW
[578]
SUPER
clause can
WHERE