MySQL Trigger 16 codes

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1 Before insert trigger
2 Change NEW value in a before insert trigger
3 Change the NEW value based on the input in a BEFORE INSERT trigger
4 Change the NEW value based on the input in the BEFORE UPDATE trigger
5 Check inserted value with a trigger
6 Checking NEW value and create message
7 Create a Before update trigger
8 Insert information to a log in the AFTER UPDATE trigger
9 Log information into a log table in the after delete trigger
10 Reference new value with NEW in a BEFORE UPDATE
11 Set NEW value to NULL in a before update trigger
12 Syntax for Creating a Trigger
13 The DROP TRIGGER statement
14 The two triggers to ensure valid data
15 Update table in a before update trigger
16 Viewing Triggers