Examples and Notes by Week

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View Create_GetCustomerLevel_proc.sql code.	Open/Save Create_GetCustomerLevel_proc.sql.
View Create_and_test_beforeDelete_trig.sql code.	Open/Save Create_and_test_beforeDelete_trig.sql.
View Create_before_employee_update_trig.sql code.	Open/Save Create_before_employee_update_trig.sql.
View Create_createEmailList_proc.sql code.	Open/Save Create_createEmailList_proc.sql.
View Create_employees_audit_table.sql code.	Open/Save Create_employees_audit_table.sql.
View Create_trigger1.sql code.	Open/Save Create_trigger1.sql.
View Create_trigger2.sql code.	Open/Save Create_trigger2.sql.
View Create_trigger3.sql code.	Open/Save Create_trigger3.sql.
View CustomerLevel_Func.sql code.	Open/Save CustomerLevel_Func.sql.
View Test_before_employee_update.sql code.	Open/Save Test_before_employee_update.sql.
View notes.txt code.	Open/Save notes.txt.
View outputEmailList.sql code.	Open/Save outputEmailList.sql.

The code for Create_trigger1.sql is:
DROP TABLE IF EXISTS messages; CREATE TABLE messages ( id INT PRIMARY KEY AUTO_INCREMENT, message VARCHAR(255) NOT NULL, created_at DATETIME NOT NULL ); DROP EVENT IF EXISTS test_event_01; CREATE EVENT IF NOT EXISTS test_event_01 ON SCHEDULE AT CURRENT_TIMESTAMP DO INSERT INTO messages(message,created_at) VALUES('Test MySQL Event 1',NOW());