Examples and Notes by Week

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View Create_GetCustomerLevel.sql code.	Open/Save Create_GetCustomerLevel.sql.
View Create_GetCustomerLevel2.sql code.	Open/Save Create_GetCustomerLevel2.sql.
View Create_GetCustomerLevel3.sql code.	Open/Save Create_GetCustomerLevel3.sql.
View Create_GetCustomerShipping.sql code.	Open/Save Create_GetCustomerShipping.sql.
View Create_GetCustomers.sql code.	Open/Save Create_GetCustomers.sql.
View Create_GetOfficeByCountry.sql code.	Open/Save Create_GetOfficeByCountry.sql.
View Create_GetOrderCountByStatus.sql code.	Open/Save Create_GetOrderCountByStatus.sql.
View Create_GetTotalOrde_sessionr.sql code.	Open/Save Create_GetTotalOrde_sessionr.sql.
View Create_GetTotalOrder.sql code.	Open/Save Create_GetTotalOrder.sql.
View GetAllProducts.sql code.	Open/Save GetAllProducts.sql.
View LoopDemo.sql code.	Open/Save LoopDemo.sql.
View exit_handler.sql code.	Open/Save exit_handler.sql.
View while.sql code.	Open/Save while.sql.

The code for LoopDemo.sql is:
DROP PROCEDURE IF EXISTS LoopDemo; DELIMITER $$ CREATE PROCEDURE LoopDemo() BEGIN DECLARE x INT; DECLARE str VARCHAR(255); SET x = 0; SET str = ''; loop_label: LOOP IF x > 10 THEN LEAVE loop_label; # Exit the loop entirely. END IF; SET x = x + 1; IF (x mod 2) THEN ITERATE loop_label; # Do not execute statements below this. #ELSE #SET str = CONCAT(str,x,','); END IF; SET str = CONCAT(str,x,','); END LOOP; SELECT str; END$$ DELIMITER ; CALL LoopDemo();