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bank_database_updating_terminal.txt
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(base) sujit@sujit-Inspiron-3558:~$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 14
Server version: 5.7.26-0ubuntu0.16.04.1 (Ubuntu)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use bank_database
Database changed
mysql> CREATE TABLE employee(emp_id INT PRIMARY KEY,
-> first_name VARCHAR(40), last_name VARCHAR(40),
-> birth_day DATE,sex VARCHAR(1),salary INT,super_id INT,branch_id INT);
Query OK, 0 rows affected (0.40 sec)
mysql> CREATE TABLE branch(branch_id INT PRIMARY KEY,branch_name VARCHAR(40),
-> mgr_id INT, mgr_start_date DATE,FOREIGN KEY(mgr_id) REFERENCES employee(emp_id) ON DELETE SET NULL);
Query OK, 0 rows affected (0.31 sec)
mysql> ALTER TABLE employee ADD FOREIGN KEY(branch_id) REFERENCES branch(branch_id) ON DELETE SET NULL);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
mysql> ALTER TABLE employee ADD FOREIGN KEY(branch_id) REFERENCES branch(branch_id) ON DELETE SET NULL;
Query OK, 0 rows affected (0.63 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> DESCRIBE employee;
+------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+-------------+------+-----+---------+-------+
| emp_id | int(11) | NO | PRI | NULL | |
| first_name | varchar(40) | YES | | NULL | |
| last_name | varchar(40) | YES | | NULL | |
| birth_day | date | YES | | NULL | |
| sex | varchar(1) | YES | | NULL | |
| salary | int(11) | YES | | NULL | |
| super_id | int(11) | YES | | NULL | |
| branch_id | int(11) | YES | MUL | NULL | |
+------------+-------------+------+-----+---------+-------+
8 rows in set (0.00 sec)
mysql> DESCRIBE branch;
+----------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------------+-------------+------+-----+---------+-------+
| branch_id | int(11) | NO | PRI | NULL | |
| branch_name | varchar(40) | YES | | NULL | |
| mgr_id | int(11) | YES | MUL | NULL | |
| mgr_start_date | date | YES | | NULL | |
+----------------+-------------+------+-----+---------+-------+
4 rows in set (0.00 sec)
mysql> ALTER TABLE employee ADD FOREIGN KEY(super_id) REFERENCES employee(emp_id) ON DELETE SET NULL;
Query OK, 0 rows affected (0.71 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> DESCRIBE employee; +------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+-------------+------+-----+---------+-------+
| emp_id | int(11) | NO | PRI | NULL | |
| first_name | varchar(40) | YES | | NULL | |
| last_name | varchar(40) | YES | | NULL | |
| birth_day | date | YES | | NULL | |
| sex | varchar(1) | YES | | NULL | |
| salary | int(11) | YES | | NULL | |
| super_id | int(11) | YES | MUL | NULL | |
| branch_id | int(11) | YES | MUL | NULL | |
+------------+-------------+------+-----+---------+-------+
8 rows in set (0.00 sec)
mysql> CREATE TABLE client(client_id INT,client_name VARCHAR(40),branch_id INT,
-> PRIMARY KEY(client_id), FOREIGN KEY(branch_id) REFERENCES branch(branch_id) ON DELETE SET NULL);
Query OK, 0 rows affected (0.32 sec)
mysql> DESCRIBE client;
+-------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+-------------+------+-----+---------+-------+
| client_id | int(11) | NO | PRI | NULL | |
| client_name | varchar(40) | YES | | NULL | |
| branch_id | int(11) | YES | MUL | NULL | |
+-------------+-------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> CREATE TABLE work_with(emp_id INT,client INT,total_sales INT,
-> PRIMARY KEY(emp_id,client),
-> FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE SET NULL,
-> FOREIGN KEY(client) REFERENCES client(client_id) ON DELETE SET NULL);
ERROR 1215 (HY000): Cannot add foreign key constraint
mysql> CREATE TABLE work_with(emp_id INT,client_id INT,total_sales INT, PRIMARY KEY(emp_id,client), FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE SET NULL, FOREIGN KEY(client_id) REFERENCES client(client_id) ON DELETE SET NULL);
ERROR 1072 (42000): Key column 'client' doesn't exist in table
mysql> CREATE TABLE work_with(emp_id INT,client_id INT,total_sales INT, PRIMARY KEY(emp_id,client_id), FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE SET NULL, FOREIGN KEY(client_id) REFERENCES client(client_id) ON DELETE SET NULL);
ERROR 1215 (HY000): Cannot add foreign key constraint
mysql> CREATE TABLE work_with(emp_id INT,client_id INT,total_sales INT,
-> PRIMARY KEY(emp_id,client_id),
-> FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE SET NULL,
-> FOREIGN KEY(client_id) REFERENCES client(client_id) ON DELETE SET NULL);
ERROR 1215 (HY000): Cannot add foreign key constraint
mysql> CREATE TABLE work_with(emp_id INT,client_id INT,total_sales INT, PRIMARY KEY(emp_id,client_id), FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE SET NULL, FOREIGN KEY(client_id) REFERENCES client(client_id) ON DELETE SET NULL);
ERROR 1215 (HY000): Cannot add foreign key constraint
mysql> CREATE TABLE work_with(emp_id INT,client_id INT,total_sales INT, PRIMARY KEY(emp_id,client_id), FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE SET NULL);
ERROR 1215 (HY000): Cannot add foreign key constraint
mysql> CREATE TABLE work_with(emp_id INT,client_id INT,total_sales INT, PRIMARY KEY(emp_id,client_id));
Query OK, 0 rows affected (0.27 sec)
mysql>
mysql> DESCRIBE work_with;
+-------------+---------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+---------+------+-----+---------+-------+
| emp_id | int(11) | NO | PRI | NULL | |
| client_id | int(11) | NO | PRI | NULL | |
| total_sales | int(11) | YES | | NULL | |
+-------------+---------+------+-----+---------+-------+
3 rows in set (0.01 sec)
mysql> ALTER TALBE work_with ADD FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE CASCADE;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'TALBE work_with ADD FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE CA' at line 1
mysql> ALTER TABLE work_with ADD FOREIGN KEY(emp_id) REFERENCES employee(emp_id) ON DELETE CASCADE;
Query OK, 0 rows affected (0.89 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> ALTER TABLE work_with ADD FOREIGN KEY(emp_id) REFERENCES client(client_id) ON DELETE CASCADE;
Query OK, 0 rows affected (0.97 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> DESCRIBE work_with;
+-------------+---------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+---------+------+-----+---------+-------+
| emp_id | int(11) | NO | PRI | NULL | |
| client_id | int(11) | NO | PRI | NULL | |
| total_sales | int(11) | YES | | NULL | |
+-------------+---------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> CREATE TABLE branch_supplier(branch_id INT,supplier_name VARCHAR(50),
-> supply_type VARCHAR(40), PRIMARY KEY(branch_id,supplier_name),
-> FOREIGN KEY(branch_id) REFERENCES branch(branch_id) ON DELETE CASCADE);
Query OK, 0 rows affected (0.30 sec)
mysql> DESCRIBE branch_supplier;
+---------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------------+-------------+------+-----+---------+-------+
| branch_id | int(11) | NO | PRI | NULL | |
| supplier_name | varchar(50) | NO | PRI | NULL | |
| supply_type | varchar(40) | YES | | NULL | |
+---------------+-------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> INSERT INTO employee VALUES(100,'DAVID','WALLACE','1967-11-7','M',250000,NULL,NULL);
Query OK, 1 row affected (0.09 sec)
mysql> DESCRIBE branch_supplier; +---------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------------+-------------+------+-----+---------+-------+
| branch_id | int(11) | NO | PRI | NULL | |
| supplier_name | varchar(50) | NO | PRI | NULL | |
| supply_type | varchar(40) | YES | | NULL | |
+---------------+-------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> SELECT * FROM employee;
+--------+------------+-----------+------------+------+--------+----------+-----------+
| emp_id | first_name | last_name | birth_day | sex | salary | super_id | branch_id |
+--------+------------+-----------+------------+------+--------+----------+-----------+
| 100 | DAVID | WALLACE | 1967-11-07 | M | 250000 | NULL | NULL |
+--------+------------+-----------+------------+------+--------+----------+-----------+
1 row in set (0.00 sec)
mysql> INSERT INTO branch VALUES(1,'Corporate',100,'2006-02-09');
Query OK, 1 row affected (0.07 sec)
mysql> UPDATE employee SET branch_id = 1 WHERE emp_id=100;
Query OK, 1 row affected (0.07 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> SELECT * FROM employee;
+--------+------------+-----------+------------+------+--------+----------+-----------+
| emp_id | first_name | last_name | birth_day | sex | salary | super_id | branch_id |
+--------+------------+-----------+------------+------+--------+----------+-----------+
| 100 | DAVID | WALLACE | 1967-11-07 | M | 250000 | NULL | 1 |
+--------+------------+-----------+------------+------+--------+----------+-----------+
1 row in set (0.00 sec)
mysql> SELECT * FROM branch;
+-----------+-------------+--------+----------------+
| branch_id | branch_name | mgr_id | mgr_start_date |
+-----------+-------------+--------+----------------+
| 1 | Corporate | 100 | 2006-02-09 |
+-----------+-------------+--------+----------------+
1 row in set (0.00 sec)
mysql> INSERT INTO employee VALUES(101,'Jan','Levinson','1961-05-11','F',110000,100,1);
Query OK, 1 row affected (0.24 sec)
mysql> SELECT * FROM employee;
+--------+------------+-----------+------------+------+--------+----------+-----------+
| emp_id | first_name | last_name | birth_day | sex | salary | super_id | branch_id |
+--------+------------+-----------+------------+------+--------+----------+-----------+
| 100 | DAVID | WALLACE | 1967-11-07 | M | 250000 | NULL | 1 |
| 101 | Jan | Levinson | 1961-05-11 | F | 110000 | 100 | 1 |
+--------+------------+-----------+------------+------+--------+----------+-----------+
2 rows in set (0.00 sec)
mysql> INSERT INTO employee VALUES(102,'Michael','Scott','1964-03-15','M',75000,100,NULL);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO branch VALUES(2,'Scranton',102,'1992-04-06');
Query OK, 1 row affected (0.06 sec)
mysql> UPDATE employee SET branch_id=2 WHERE emp_id=102;
Query OK, 1 row affected (0.34 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> SELECT * FROM employee;
+--------+------------+-----------+------------+------+--------+----------+-----------+
| emp_id | first_name | last_name | birth_day | sex | salary | super_id | branch_id |
+--------+------------+-----------+------------+------+--------+----------+-----------+
| 100 | DAVID | WALLACE | 1967-11-07 | M | 250000 | NULL | 1 |
| 101 | Jan | Levinson | 1961-05-11 | F | 110000 | 100 | 1 |
| 102 | Michael | Scott | 1964-03-15 | M | 75000 | 100 | 2 |
+--------+------------+-----------+------------+------+--------+----------+-----------+
3 rows in set (0.00 sec)
mysql> SELECT * FROM branch;
+-----------+-------------+--------+----------------+
| branch_id | branch_name | mgr_id | mgr_start_date |
+-----------+-------------+--------+----------------+
| 1 | Corporate | 100 | 2006-02-09 |
| 2 | Scranton | 102 | 1992-04-06 |
+-----------+-------------+--------+----------------+
2 rows in set (0.00 sec)
mysql> INSERT INTO branch VALUES(3,'Stamford',106,'1992-04-06');
ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails (`bank_database`.`branch`, CONSTRAINT `branch_ibfk_1` FOREIGN KEY (`mgr_id`) REFERENCES `employee` (`emp_id`) ON DELETE SET NULL)
mysql> INSERT INTO employee VALUES(103,'Angela','Martin','1971-06-25','F',63000,102,2);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO employee VALUES(104,'Kelly','Kapoor','1980-02-05','F',55000,102,2);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO employee VALUES(105,'Stanley','Hudson','1958-02-19','M',69000,100,2);
Query OK, 1 row affected (0.06 sec)
mysql> INSERT INTO employee VALUES(106,'Josh','Porter','1969-09-05','M',78000,100,NULL);
Query OK, 1 row affected (0.03 sec)
mysql> INSERT INTO branch VALUES(3,'Stamford',106,'1998-02-13');
Query OK, 1 row affected (0.06 sec)
mysql> UPDATE employee SET branch_id=3 WHERE emp_id=106;
Query OK, 1 row affected (0.06 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> SELECT * FROM employee;
+--------+------------+-----------+------------+------+--------+----------+-----------+
| emp_id | first_name | last_name | birth_day | sex | salary | super_id | branch_id |
+--------+------------+-----------+------------+------+--------+----------+-----------+
| 100 | DAVID | WALLACE | 1967-11-07 | M | 250000 | NULL | 1 |
| 101 | Jan | Levinson | 1961-05-11 | F | 110000 | 100 | 1 |
| 102 | Michael | Scott | 1964-03-15 | M | 75000 | 100 | 2 |
| 103 | Angela | Martin | 1971-06-25 | F | 63000 | 102 | 2 |
| 104 | Kelly | Kapoor | 1980-02-05 | F | 55000 | 102 | 2 |
| 105 | Stanley | Hudson | 1958-02-19 | M | 69000 | 100 | 2 |
| 106 | Josh | Porter | 1969-09-05 | M | 78000 | 100 | 3 |
+--------+------------+-----------+------------+------+--------+----------+-----------+
7 rows in set (0.01 sec)
(base) sujit@sujit-Inspiron-3558:~$ mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
(base) sujit@sujit-Inspiron-3558:~$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.7.26-0ubuntu0.16.04.1 (Ubuntu)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use bank_database
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+-------------------------+
| Tables_in_bank_database |
+-------------------------+
| branch |
| branch_supplier |
| client |
| employee |
| work_with |
+-------------------------+
5 rows in set (0.01 sec)
mysql> SELECT * FROM employee
-> ;
+--------+------------+-----------+------------+------+--------+----------+-----------+
| emp_id | first_name | last_name | birth_day | sex | salary | super_id | branch_id |
+--------+------------+-----------+------------+------+--------+----------+-----------+
| 100 | DAVID | WALLACE | 1967-11-07 | M | 250000 | NULL | 1 |
| 101 | Jan | Levinson | 1961-05-11 | F | 110000 | 100 | 1 |
| 102 | Michael | Scott | 1964-03-15 | M | 75000 | 100 | 2 |
| 103 | Angela | Martin | 1971-06-25 | F | 63000 | 102 | 2 |
| 104 | Kelly | Kapoor | 1980-02-05 | F | 55000 | 102 | 2 |
| 105 | Stanley | Hudson | 1958-02-19 | M | 69000 | 100 | 2 |
| 106 | Josh | Porter | 1969-09-05 | M | 78000 | 100 | 3 |
+--------+------------+-----------+------------+------+--------+----------+-----------+
7 rows in set (0.00 sec)
mysql> INSERT INTO employee VALUES(107,'Andy','Bernard','1973-07-22','M',65000,106,3);
Query OK, 1 row affected (0.10 sec)
mysql> INSERT INTO employee VALUES(108,'Jim','Halpart','1978-10-01','M',71000,106,3);
Query OK, 1 row affected (0.06 sec)
mysql> SELECT * FROM employee;
+--------+------------+-----------+------------+------+--------+----------+-----------+
| emp_id | first_name | last_name | birth_day | sex | salary | super_id | branch_id |
+--------+------------+-----------+------------+------+--------+----------+-----------+
| 100 | DAVID | WALLACE | 1967-11-07 | M | 250000 | NULL | 1 |
| 101 | Jan | Levinson | 1961-05-11 | F | 110000 | 100 | 1 |
| 102 | Michael | Scott | 1964-03-15 | M | 75000 | 100 | 2 |
| 103 | Angela | Martin | 1971-06-25 | F | 63000 | 102 | 2 |
| 104 | Kelly | Kapoor | 1980-02-05 | F | 55000 | 102 | 2 |
| 105 | Stanley | Hudson | 1958-02-19 | M | 69000 | 100 | 2 |
| 106 | Josh | Porter | 1969-09-05 | M | 78000 | 100 | 3 |
| 107 | Andy | Bernard | 1973-07-22 | M | 65000 | 106 | 3 |
| 108 | Jim | Halpart | 1978-10-01 | M | 71000 | 106 | 3 |
+--------+------------+-----------+------------+------+--------+----------+-----------+
9 rows in set (0.00 sec)
mysql> INSERT INTO client VALUES(400,'Dunmore Highschool',2);
Query OK, 1 row affected (0.06 sec)
mysql> INSERT INTO client VALUES(401,'Lackawana Country',2);
Query OK, 1 row affected (0.06 sec)
mysql> INSERT INTO client VALUES(401,'FedEx',3);
ERROR 1062 (23000): Duplicate entry '401' for key 'PRIMARY'
mysql> INSERT INTO client VALUES(402,'FedEx',3);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO client VALUES(403,'John Daly Law, LLC',3);
Query OK, 1 row affected (0.33 sec)
mysql> INSERT INTO client VALUES(404,'Scranton Whitepages',2);
Query OK, 1 row affected (0.08 sec)
mysql> INSERT INTO client VALUES(405,'Times Newspaper',3);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO client VALUES(406,'FedEx',2);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO work_with VALUES(105,400,55000);
ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails (`bank_database`.`work_with`, CONSTRAINT `work_with_ibfk_2` FOREIGN KEY (`emp_id`) REFERENCES `client` (`client_id`) ON DELETE CASCADE)
mysql> SELECT * FROM work_with;
Empty set (0.00 sec)
mysql> DESCRIBE work_with;
+-------------+---------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+---------+------+-----+---------+-------+
| emp_id | int(11) | NO | PRI | NULL | |
| client_id | int(11) | NO | PRI | NULL | |
| total_sales | int(11) | YES | | NULL | |
+-------------+---------+------+-----+---------+-------+
3 rows in set (0.00 sec)
mysql> SELECT * FROM client;
+-----------+---------------------+-----------+
| client_id | client_name | branch_id |
+-----------+---------------------+-----------+
| 400 | Dunmore Highschool | 2 |
| 401 | Lackawana Country | 2 |
| 402 | FedEx | 3 |
| 403 | John Daly Law, LLC | 3 |
| 404 | Scranton Whitepages | 2 |
| 405 | Times Newspaper | 3 |
| 406 | FedEx | 2 |
+-----------+---------------------+-----------+
7 rows in set (0.00 sec)
mysql> INSERT INTO work_with VALUES(105,400,55000);
ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails (`bank_database`.`work_with`, CONSTRAINT `work_with_ibfk_2` FOREIGN KEY (`emp_id`) REFERENCES `client` (`client_id`) ON DELETE CASCADE)
mysql> INSERT INTO work_with VALUES(102,401,267000);
ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails (`bank_database`.`work_with`, CONSTRAINT `work_with_ibfk_2` FOREIGN KEY (`emp_id`) REFERENCES `client` (`client_id`) ON DELETE CASCADE)
mysql> ALTER TABLE work_with ADD PRIMARY KEY(emp_id,client_id);
ERROR 1068 (42000): Multiple primary key defined
mysql> ALTER TABLE work_with ADD FOREIGN KEY(emp_id) REFERENCES employee(emp_id);
Query OK, 0 rows affected (1.00 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> ALTER TABLE work_with ADD FOREIGN KEY(client_id) REFERENCES client(client_id);
Query OK, 0 rows affected (0.64 sec)
Records: 0 Duplicates: 0 Warnings: 0
mysql> INSERT INTO work_with VALUES(105,400,55000);
ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails (`bank_database`.`work_with`, CONSTRAINT `work_with_ibfk_2` FOREIGN KEY (`emp_id`) REFERENCES `client` (`client_id`) ON DELETE CASCADE)
mysql> INSERT INTO branch_supplier VALUES(2,'Hammer Mill','Paper');
Query OK, 1 row affected (0.06 sec)
mysql> INSERT INTO branch_supplier VALUES(2,'Uni Ball','Writing Utensils');
Query OK, 1 row affected (0.06 sec)
mysql> INSERT INTO branch_supplier VALUES(3,'Patriot Paper','Paper');
Query OK, 1 row affected (0.06 sec)
mysql> INSERT INTO branch_supplier VALUES(2,'J.T. Forms & Labels','Custom Forms');
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO branch_supplier VALUES(3,'Uni Ball','Writing Utensils');
Query OK, 1 row affected (0.08 sec)
mysql> INSERT INTO branch_supplier VALUES(3,'Hammer Mill','Paper');
Query OK, 1 row affected (0.74 sec)
mysql> INSERT INTO branch_supplier VALUES(3,'Stamford Lables','Custom Forms');
Query OK, 1 row affected (0.07 sec)
mysql> SELECT * FROM branch_supplier;
+-----------+---------------------+------------------+
| branch_id | supplier_name | supply_type |
+-----------+---------------------+------------------+
| 2 | Hammer Mill | Paper |
| 2 | J.T. Forms & Labels | Custom Forms |
| 2 | Uni Ball | Writing Utensils |
| 3 | Hammer Mill | Paper |
| 3 | Patriot Paper | Paper |
| 3 | Stamford Lables | Custom Forms |
| 3 | Uni Ball | Writing Utensils |
+-----------+---------------------+------------------+
7 rows in set (0.00 sec)
mysql> INSERT INTO work_with VALUES(105,400,55000);
ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails (`bank_database`.`work_with`, CONSTRAINT `work_with_ibfk_2` FOREIGN KEY (`emp_id`) REFERENCES `client` (`client_id`) ON DELETE CASCADE)
mysql> DROP TABLE work_with;
Query OK, 0 rows affected (0.13 sec)
mysql> DESCRIBE work_with;
ERROR 1146 (42S02): Table 'bank_database.work_with' doesn't exist
mysql> CREATE TABLE work_with(emp_id INT,client_id INT,total_sales INT,
-> PRIMARY KEY(emp_id,client_id), FOREIGN KEY(emp_id) REFERENCES employee(emp_id),
-> FOREIGN KEY(client_id) REFERENCES client(client_id));
Query OK, 0 rows affected (0.31 sec)
mysql> INSERT INTO work_with VALUES(105,400,55000);
Query OK, 1 row affected (0.34 sec)
mysql> INSERT INTO work_with VALUES(102,401,267000);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO work_with VALUES(108,402,22500);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO work_with VALUES(107,403,5000);
Query OK, 1 row affected (0.05 sec)
mysql> INSERT INTO work_with VALUES(108,404,12000);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO work_with VALUES(105,404,33000);
Query OK, 1 row affected (0.07 sec)
mysql> UPDATE work_with SET client_id=403;
ERROR 1062 (23000): Duplicate entry '105-403' for key 'PRIMARY'
mysql> UPDATE work_with SET client_id=403 WHERE emp_id=108;
ERROR 1062 (23000): Duplicate entry '108-403' for key 'PRIMARY'
mysql> SELECT * FROM work_with;
+--------+-----------+-------------+
| emp_id | client_id | total_sales |
+--------+-----------+-------------+
| 102 | 401 | 267000 |
| 105 | 400 | 55000 |
| 105 | 404 | 33000 |
| 107 | 403 | 5000 |
| 108 | 402 | 22500 |
| 108 | 404 | 12000 |
+--------+-----------+-------------+
6 rows in set (0.00 sec)
mysql> UPDATE work_with SET emp__id=105 WHERE emp_id=108 AND total_sales=12000;
ERROR 1054 (42S22): Unknown column 'emp__id' in 'field list'
mysql> UPDATE work_with SET emp_id=105 WHERE emp_id=108 AND total_sales=12000;
ERROR 1062 (23000): Duplicate entry '105-404' for key 'PRIMARY'
mysql> UPDATE work_with SET client_id=403 WHERE emp_id=108 AND total_sales=12000;
Query OK, 1 row affected (0.06 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> SELECT * FROM work_with;
+--------+-----------+-------------+
| emp_id | client_id | total_sales |
+--------+-----------+-------------+
| 102 | 401 | 267000 |
| 105 | 400 | 55000 |
| 105 | 404 | 33000 |
| 107 | 403 | 5000 |
| 108 | 402 | 22500 |
| 108 | 403 | 12000 |
+--------+-----------+-------------+
6 rows in set (0.00 sec)
mysql> INSERT INTO work_with VALUES(107,405,26000);
Query OK, 1 row affected (0.07 sec)
mysql> INSERT INTO work_with VALUES(102,406,15000);
Query OK, 1 row affected (0.08 sec)
mysql> INSERT INTO work_with VALUES(105,406,130000);
Query OK, 1 row affected (0.07 sec)
mysql> SELECT * FROM work_with;
+--------+-----------+-------------+
| emp_id | client_id | total_sales |
+--------+-----------+-------------+
| 102 | 401 | 267000 |
| 102 | 406 | 15000 |
| 105 | 400 | 55000 |
| 105 | 404 | 33000 |
| 105 | 406 | 130000 |
| 107 | 403 | 5000 |
| 107 | 405 | 26000 |
| 108 | 402 | 22500 |
| 108 | 403 | 12000 |
+--------+-----------+-------------+
9 rows in set (0.00 sec)
mysql>