mysql> mysql> CREATE TABLE Employee( -> id int, -> first_name VARCHAR(15), -> last_name VARCHAR(15), -> start_date DATE, -> end_date DATE, -> salary FLOAT(8,2), -> city VARCHAR(10), -> description VARCHAR(15) -> ); Query OK, 0 rows affected (0.01 sec)
mysql> mysql> mysql> insert into Employee(id,first_name, last_name, start_date, end_Date, salary, City, Description) -> values (1,'Jason', 'Martin', '19960725', '20060725', 1234.56, 'Toronto', 'Programmer'); Query OK, 1 row affected (0.00 sec)
mysql> mysql> insert into Employee(id,first_name, last_name, start_date, end_Date, salary, City, Description) -> values(2,'Alison', 'Mathews', '19760321', '19860221', 6661.78, 'Vancouver','Tester'); Query OK, 1 row affected (0.02 sec)
mysql> mysql> insert into Employee(id,first_name, last_name, start_date, end_Date, salary, City, Description) -> values(3,'James', 'Smith', '19781212', '19900315', 6544.78, 'Vancouver','Tester'); Query OK, 1 row affected (0.00 sec)
mysql> mysql> insert into Employee(id,first_name, last_name, start_date, end_Date, salary, City, Description) -> values(4,'Celia', 'Rice', '19821024', '19990421', 2344.78, 'Vancouver','Manager'); Query OK, 1 row affected (0.00 sec)
mysql> mysql> insert into Employee(id,first_name, last_name, start_date, end_Date, salary, City, Description) -> values(5,'Robert', 'Black', '19840115', '19980808', 2334.78, 'Vancouver','Tester'); Query OK, 1 row affected (0.00 sec)
mysql> mysql> insert into Employee(id,first_name, last_name, start_date, end_Date, salary, City, Description) -> values(6,'Linda', 'Green', '19870730', '19960104', 4322.78,'New York', 'Tester'); Query OK, 1 row affected (0.00 sec)
mysql> mysql> insert into Employee(id,first_name, last_name, start_date, end_Date, salary, City, Description) -> values(7,'David', 'Larry', '19901231', '19980212', 7897.78,'New York', 'Manager'); Query OK, 1 row affected (0.00 sec)
mysql> mysql> insert into Employee(id,first_name, last_name, start_date, end_Date, salary, City, Description) -> values(8,'James', 'Cat', '19960917', '20020415', 1232.78,'Vancouver', 'Tester'); Query OK, 1 row affected (0.00 sec)
mysql> mysql> select * from Employee; +------+------------+-----------+------------+------------+---------+-----------+-------------+ | id | first_name | last_name | start_date | end_date | salary | city | description | +------+------------+-----------+------------+------------+---------+-----------+-------------+ | 1 | Jason | Martin | 1996-07-25 | 2006-07-25 | 1234.56 | Toronto | Programmer | | 2 | Alison | Mathews | 1976-03-21 | 1986-02-21 | 6661.78 | Vancouver | Tester | | 3 | James | Smith | 1978-12-12 | 1990-03-15 | 6544.78 | Vancouver | Tester | | 4 | Celia | Rice | 1982-10-24 | 1999-04-21 | 2344.78 | Vancouver | Manager | | 5 | Robert | Black | 1984-01-15 | 1998-08-08 | 2334.78 | Vancouver | Tester | | 6 | Linda | Green | 1987-07-30 | 1996-01-04 | 4322.78 | New York | Tester | | 7 | David | Larry | 1990-12-31 | 1998-02-12 | 7897.78 | New York | Manager | | 8 | James | Cat | 1996-09-17 | 2002-04-15 | 1232.78 | Vancouver | Tester | +------+------------+-----------+------------+------------+---------+-----------+-------------+ 8 rows in set (0.00 sec)
mysql> mysql> mysql> mysql> mysql> delimiter $$ mysql> mysql> CREATE PROCEDURE myProc -> (from_account int, to_account int,tfer_amount numeric(10,2), -> OUT status int, OUT message VARCHAR(30)) -> BEGIN -> DECLARE from_account_balance NUMERIC(10,2); -> -> SELECT salary -> INTO from_account_balance -> FROM employee -> WHERE id=from_account; -> -> IF from_account_balance >= tfer_amount THEN -> -> START TRANSACTION; -> -> UPDATE employee -> SET salary=salary-tfer_amount -> WHERE id=from_account; -> -> UPDATE employee -> SET salary=salary+tfer_amount -> WHERE id=to_account; -> COMMIT; -> -> SET status=0; -> SET message='OK'; -> ELSE -> SET status=-1; -> SET message='Insufficient funds'; -> END IF; -> END$$ Query OK, 0 rows affected (0.00 sec)
mysql> mysql> delimiter ; mysql> set @myMessage = ''; Query OK, 0 rows affected (0.00 sec)
mysql> set @myCode =0; Query OK, 0 rows affected (0.00 sec)
mysql> call myProc(1,2,1000,@myCode, @myMessage); Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> drop procedure myProc; Query OK, 0 rows affected (0.00 sec)
mysql> mysql> select @myMessage; +------------+ | @myMessage | +------------+ | OK | +------------+ 1 row in set (0.00 sec)
mysql> mysql> select @myCode; +---------+ | @myCode | +---------+ | 0 | +---------+ 1 row in set (0.00 sec)
mysql> mysql> select * from EMployee; +------+------------+-----------+------------+------------+---------+-----------+-------------+ | id | first_name | last_name | start_date | end_date | salary | city | description | +------+------------+-----------+------------+------------+---------+-----------+-------------+ | 1 | Jason | Martin | 1996-07-25 | 2006-07-25 | 234.56 | Toronto | Programmer | | 2 | Alison | Mathews | 1976-03-21 | 1986-02-21 | 7661.78 | Vancouver | Tester | | 3 | James | Smith | 1978-12-12 | 1990-03-15 | 6544.78 | Vancouver | Tester | | 4 | Celia | Rice | 1982-10-24 | 1999-04-21 | 2344.78 | Vancouver | Manager | | 5 | Robert | Black | 1984-01-15 | 1998-08-08 | 2334.78 | Vancouver | Tester | | 6 | Linda | Green | 1987-07-30 | 1996-01-04 | 4322.78 | New York | Tester | | 7 | David | Larry | 1990-12-31 | 1998-02-12 | 7897.78 | New York | Manager | | 8 | James | Cat | 1996-09-17 | 2002-04-15 | 1232.78 | Vancouver | Tester | +------+------------+-----------+------------+------------+---------+-----------+-------------+ 8 rows in set (0.00 sec)
mysql> mysql> drop table Employee; Query OK, 0 rows affected (0.00 sec)
mysql>
|