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Using the MySQL Workbench create a new database using your design specifications Add at least 10...

  1. Using the MySQL Workbench create a new database using your design specifications
  2. Add at least 10 records to your tables. Note: Certain tables may not require 10 records and that is ok as long as your main tables have 10 or more
  3. Create MySQL statements that will retrieve all records or rows from the tables in your database
  4. Create 10 MySQL statements that will retrieve specified records or rows from one table in your database
  5. Create 10 MySQL statements that will retrieve records or rows from more than one table in your database
  6. Create 10 MySQL statements that will retrieve specified records or rows from more than one table in your database
  7. Create 7 MySQL statements that will modify a value or values in a database
    1. Include one statement that will delete a record
    2. Include one statement that will update a value
  8. Use ALTER TABLE command to set constraints:
    1. on the Primary Key field of the table, if you did not include it in your create table statement
    2. to at least one field in one of your tables that restricts a value
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Answer #1

CREATE TABLE employees (
emp_no INT NOT NULL,
birth_date DATE NOT NULL,
first_name VARCHAR(14) NOT NULL,
last_name VARCHAR(16) NOT NULL,
gender ENUM ('M','F') NOT NULL,
hire_date DATE NOT NULL,
PRIMARY KEY (emp_no)
);

CREATE TABLE departments (
dept_no CHAR(4) NOT NULL,
dept_name VARCHAR(40) NOT NULL,
PRIMARY KEY (dept_no),
UNIQUE KEY (dept_name)
);

CREATE TABLE dept_manager (
dept_no CHAR(4) NOT NULL,
emp_no INT NOT NULL,
from_date DATE NOT NULL,
to_date DATE NOT NULL,
KEY (emp_no),
KEY (dept_no),
FOREIGN KEY (emp_no) REFERENCES employees (emp_no) ON DELETE CASCADE,
FOREIGN KEY (dept_no) REFERENCES departments (dept_no) ON DELETE CASCADE,
PRIMARY KEY (emp_no,dept_no)
);

CREATE TABLE dept_emp (
emp_no INT NOT NULL,
dept_no CHAR(4) NOT NULL,
from_date DATE NOT NULL,
to_date DATE NOT NULL,
KEY (emp_no),
KEY (dept_no),
FOREIGN KEY (emp_no) REFERENCES employees (emp_no) ON DELETE CASCADE,
FOREIGN KEY (dept_no) REFERENCES departments (dept_no) ON DELETE CASCADE,
PRIMARY KEY (emp_no,dept_no)
);

CREATE TABLE titles (
emp_no INT NOT NULL,
title VARCHAR(50) NOT NULL,
from_date DATE NOT NULL,
to_date DATE,
KEY (emp_no),
FOREIGN KEY (emp_no) REFERENCES employees (emp_no) ON DELETE CASCADE,
PRIMARY KEY (emp_no,title, from_date)
);

CREATE TABLE salaries (
emp_no INT NOT NULL,
salary INT NOT NULL,
from_date DATE NOT NULL,
to_date DATE NOT NULL,
KEY (emp_no),
FOREIGN KEY (emp_no) REFERENCES employees (emp_no) ON DELETE CASCADE,
PRIMARY KEY (emp_no, from_date)
);

INSERT INTO `employees` VALUES (10001,'1953-09-02','Georgi','Facello','M','1986-06-26'),
(10002,'1964-06-02','Bezalel','Simmel','F','1985-11-21'),
(10003,'1959-12-03','Parto','Bamford','M','1986-08-28'),
(10004,'1954-05-01','Chirstian','Koblick','M','1986-12-01'),
(10005,'1955-01-21','Kyoichi','Maliniak','M','1989-09-12'),
(10006,'1953-04-20','Anneke','Preusig','F','1989-06-02'),
(10007,'1957-05-23','Tzvetan','Zielinski','F','1989-02-10'),
(10008,'1958-02-19','Saniya','Kalloufi','M','1994-09-15'),
(10009,'1952-04-19','Sumant','Peac','F','1985-02-18'),
(10010,'1963-06-01','Duangkaew','Piveteau','F','1989-08-24'),
(10011,'1953-11-07','Mary','Sluis','F','1990-01-22'),
(10012,'1960-10-04','Patricio','Bridgland','M','1992-12-18'),
(10013,'1963-06-07','Eberhardt','Terkki','M','1985-10-20'),
(10014,'1956-02-12','Berni','Genin','M','1987-03-11'),
(10015,'1959-08-19','Guoxiang','Nooteboom','M','1987-07-02'),
(10016,'1961-05-02','Kazuhito','Cappelletti','M','1995-01-27'),
(10017,'1958-07-06','Cristinel','Bouloucos','F','1993-08-03'),
(10018,'1954-06-19','Kazuhide','Peha','F','1987-04-03'),
(10019,'1953-01-23','Lillian','Haddadi','M','1999-04-30'),
(10020,'1952-12-24','Mayuko','Warwick','M','1991-01-26'),
(10021,'1960-02-20','Ramzi','Erde','M','1988-02-10'),
(10022,'1952-07-08','Shahaf','Famili','M','1995-08-22';

INSERT INTO `departments` VALUES
('d001','Marketing'),
('d002','Finance'),
('d003','Human Resources'),
('d004','Production'),
('d005','Development'),
('d006','Quality Management'),
('d007','Sales'),
('d008','Research'),
('d009','Customer Service');

INSERT INTO `dept_manager` VALUES
(110022,'d001','1985-01-01','1991-10-01'),

(110039,'d001','1991-10-01','9999-01-01'),

(110085,'d002','1985-01-01','1989-12-17'),

(110114,'d002','1989-12-17','9999-01-01'),

(110183,'d003','1985-01-01','1992-03-21'),

(110228,'d003','1992-03-21','9999-01-01'),

(110303,'d004','1985-01-01','1988-09-09'),

(110344,'d004','1988-09-09','1992-08-02'),

(110386,'d004','1992-08-02','1996-08-30'),

(110420,'d004','1996-08-30','9999-01-01'),

(110511,'d005','1985-01-01','1992-04-25'),

(110567,'d005','1992-04-25','9999-01-01'),

(110725,'d006','1985-01-01','1989-05-06');

INSERT INTO `dept_manager` VALUES
(110022,'d001','1985-01-01','1991-10-01'),

(110039,'d001','1991-10-01','9999-01-01'),

(110085,'d002','1985-01-01','1989-12-17'),

(110114,'d002','1989-12-17','9999-01-01'),

(110183,'d003','1985-01-01','1992-03-21'),

(110228,'d003','1992-03-21','9999-01-01'),

(110303,'d004','1985-01-01','1988-09-09'),

(110344,'d004','1988-09-09','1992-08-02'),

(110386,'d004','1992-08-02','1996-08-30'),

(110420,'d004','1996-08-30','9999-01-01'),

(110511,'d005','1985-01-01','1992-04-25'),

(110567,'d005','1992-04-25','9999-01-01'),

(110725,'d006','1985-01-01','1989-05-06');

INSERT INTO `titles` VALUES (10001,'Senior Engineer','1986-06-26','9999-01-01'),
(10002,'Staff','1996-08-03','9999-01-01'),
(10003,'Senior Engineer','1995-12-03','9999-01-01'),
(10004,'Engineer','1986-12-01','1995-12-01'),
(10004,'Senior Engineer','1995-12-01','9999-01-01'),
(10005,'Senior Staff','1996-09-12','9999-01-01'),
(10005,'Staff','1989-09-12','1996-09-12'),
(10006,'Senior Engineer','1990-08-05','9999-01-01'),
(10007,'Senior Staff','1996-02-11','9999-01-01'),
(10007,'Staff','1989-02-10','1996-02-11'),
(10008,'Assistant Engineer','1998-03-11','2000-07-31'),
(10009,'Assistant Engineer','1985-02-18','1990-02-18'),
(10009,'Engineer','1990-02-18','1995-02-18'),
(10009,'Senior Engineer','1995-02-18','9999-01-01'),
(10010,'Engineer','1996-11-24','9999-01-01'),
(10011,'Staff','1990-01-22','1996-11-09'),
(10012,'Engineer','1992-12-18','2000-12-18'),
(10012,'Senior Engineer','2000-12-18','9999-01-01'),
(10013,'Senior Staff','1985-10-20','9999-01-01');

INSERT INTO `titles` VALUES (10001,'Senior Engineer','1986-06-26','9999-01-01'),
(10002,'Staff','1996-08-03','9999-01-01'),
(10003,'Senior Engineer','1995-12-03','9999-01-01'),
(10004,'Engineer','1986-12-01','1995-12-01'),
(10004,'Senior Engineer','1995-12-01','9999-01-01'),
(10005,'Senior Staff','1996-09-12','9999-01-01'),
(10005,'Staff','1989-09-12','1996-09-12'),
(10006,'Senior Engineer','1990-08-05','9999-01-01'),
(10007,'Senior Staff','1996-02-11','9999-01-01'),
(10007,'Staff','1989-02-10','1996-02-11'),
(10008,'Assistant Engineer','1998-03-11','2000-07-31'),
(10009,'Assistant Engineer','1985-02-18','1990-02-18'),
(10009,'Engineer','1990-02-18','1995-02-18'),
(10009,'Senior Engineer','1995-02-18','9999-01-01'),
(10010,'Engineer','1996-11-24','9999-01-01'),
(10011,'Staff','1990-01-22','1996-11-09'),
(10012,'Engineer','1992-12-18','2000-12-18'),
(10012,'Senior Engineer','2000-12-18','9999-01-01'),
(10013,'Senior Staff','1985-10-20','9999-01-01');

NOTE: As per HOMEWORKLIB POLICY I am allowed to answer specific number of questions (including sub-parts) on a single post. Kindly post the remaining questions separately and I will try to answer them. Sorry for the inconvenience caused.

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