Q. Write a trigger that checks the length of a contract when a new contract is inserted into longtermcontract table. If this is the first contract between the pharmacy and pharmaceutical company, the length of the contract should not be more than 12 months. If the contract is more than 12 months, the trigger should alter the end date and reduce it to 12 months after the start date. * You have to use BEFORE INSERT ON * THE INSERT STATEMENT IN THE END OF THE GIVEN CODE MUST WORK. GIVEN CODE:-- Do not change the name of the trigger delimiter // create trigger first_contracts_length_limitation -- do not modify or delete the following lines. Do not write anything after this line. insert into longtermcontract values('parapharmaceutical', '24 South St., Fabreville, QC H7P-E2H', '2020-02-01', '2021-04-01', '***');
Control structures
Control structures are block of statements that analyze the value of variables and determine the flow of execution based on those values. When a program is running, the CPU executes the code line by line. After sometime, the program reaches the point where it has to make a decision on whether it has to go to another part of the code or repeat execution of certain part of the code. These results affect the flow of the program's code and these are called control structures.
Switch Statement
The switch statement is a key feature that is used by the programmers a lot in the world of programming and coding, as well as in information technology in general. The switch statement is a selection control mechanism that allows the variable value to change the order of the individual statements in the software execution via search.
Q. Write a trigger that checks the length of a contract when a new contract is inserted into longtermcontract table. If this is the first contract between the pharmacy and pharmaceutical company, the length of the contract should not be more than 12 months. If the contract is more than 12 months, the trigger should alter the end date and reduce it to 12 months after the start date.
* You have to use BEFORE INSERT ON
* THE INSERT STATEMENT IN THE END OF THE GIVEN CODE MUST WORK.
GIVEN CODE:-- Do not change the name of the trigger
delimiter //
create trigger first_contracts_length_limitation
-- do not modify or delete the following lines. Do not write anything after this line.
insert into longtermcontract values('parapharmaceutical', '24 South St., Fabreville, QC H7P-E2H', '2020-02-01', '2021-04-01', '***');
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