MySQL Tutorial Trigger 17 codes

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1 Activation Time
2 Before insert trigger
3 Change NEW value in a before insert trigger
4 Change the NEW value based on the input in a BEFORE INSERT trigger
5 Change the NEW value based on the input in the BEFORE UPDATE 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 Looking at the CREATE statement in the data directory
11 OLD and NEW Keywords
12 Reference new value with NEW in a BEFORE UPDATE
13 Set NEW value to NULL in a before update trigger
14 The CREATE TRIGGER Statement
15 The DROP TRIGGER statement
16 Update table in a before update trigger
17 Viewing Triggers