I keep notes here. Most of these are related to travel, work, or books.

SQL Exercises for a 40 Line Database

17 Nov 2021SQL linux

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If you want to practice SQL queries, you need a local database and some exercises to get you started. This post describes how to make 40 employee database by just cutting and pasting into the terminal. I then share some exercises to get you started on playing with the database.

Create a database

The following example data is from SQLTutorial.com.

You can do these exercises for all of the common SQL varietes. If you wish to use PostgreSQL, Microsoft SQL Server, Oracle Database, or SQLite, there are instructions for pasting in the data at SQLTutorial.com. The instructions below are for MariaDB or MySQL.

If you are using MySQL, assuming you already have MySQL installed, create an empty db by running these queries

CREATE TABLE regions (
	region_id INT (11) AUTO_INCREMENT PRIMARY KEY,
	region_name VARCHAR (25) DEFAULT NULL
);

CREATE TABLE countries (
	country_id CHAR (2) PRIMARY KEY,
	country_name VARCHAR (40) DEFAULT NULL,
	region_id INT (11) NOT NULL,
	FOREIGN KEY (region_id) REFERENCES regions (region_id) ON DELETE CASCADE ON UPDATE CASCADE
);

CREATE TABLE locations (
	location_id INT (11) AUTO_INCREMENT PRIMARY KEY,
	street_address VARCHAR (40) DEFAULT NULL,
	postal_code VARCHAR (12) DEFAULT NULL,
	city VARCHAR (30) NOT NULL,
	state_province VARCHAR (25) DEFAULT NULL,
	country_id CHAR (2) NOT NULL,
	FOREIGN KEY (country_id) REFERENCES countries (country_id) ON DELETE CASCADE ON UPDATE CASCADE
);

CREATE TABLE jobs (
	job_id INT (11) AUTO_INCREMENT PRIMARY KEY,
	job_title VARCHAR (35) NOT NULL,
	min_salary DECIMAL (8, 2) DEFAULT NULL,
	max_salary DECIMAL (8, 2) DEFAULT NULL
);

CREATE TABLE departments (
	department_id INT (11) AUTO_INCREMENT PRIMARY KEY,
	department_name VARCHAR (30) NOT NULL,
	location_id INT (11) DEFAULT NULL,
	FOREIGN KEY (location_id) REFERENCES locations (location_id) ON DELETE CASCADE ON UPDATE CASCADE
);

CREATE TABLE employees (
	employee_id INT (11) AUTO_INCREMENT PRIMARY KEY,
	first_name VARCHAR (20) DEFAULT NULL,
	last_name VARCHAR (25) NOT NULL,
	email VARCHAR (100) NOT NULL,
	phone_number VARCHAR (20) DEFAULT NULL,
	hire_date DATE NOT NULL,
	job_id INT (11) NOT NULL,
	salary DECIMAL (8, 2) NOT NULL,
	manager_id INT (11) DEFAULT NULL,
	department_id INT (11) DEFAULT NULL,
	FOREIGN KEY (job_id) REFERENCES jobs (job_id) ON DELETE CASCADE ON UPDATE CASCADE,
	FOREIGN KEY (department_id) REFERENCES departments (department_id) ON DELETE CASCADE ON UPDATE CASCADE,
	FOREIGN KEY (manager_id) REFERENCES employees (employee_id)
);

CREATE TABLE dependents (
	dependent_id INT (11) AUTO_INCREMENT PRIMARY KEY,
	first_name VARCHAR (50) NOT NULL,
	last_name VARCHAR (50) NOT NULL,
	relationship VARCHAR (25) NOT NULL,
	employee_id INT (11) NOT NULL,
	FOREIGN KEY (employee_id) REFERENCES employees (employee_id) ON DELETE CASCADE ON UPDATE CASCADE
);

Now load the data by pasting these into the terminal:

/*Data for the table regions */

INSERT INTO regions(region_id,region_name) VALUES (1,'Europe');
INSERT INTO regions(region_id,region_name) VALUES (2,'Americas');
INSERT INTO regions(region_id,region_name) VALUES (3,'Asia');
INSERT INTO regions(region_id,region_name) VALUES (4,'Middle East and Africa');


/*Data for the table countries */
INSERT INTO countries(country_id,country_name,region_id) VALUES ('AR','Argentina',2);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('AU','Australia',3);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('BE','Belgium',1);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('BR','Brazil',2);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('CA','Canada',2);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('CH','Switzerland',1);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('CN','China',3);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('DE','Germany',1);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('DK','Denmark',1);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('EG','Egypt',4);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('FR','France',1);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('HK','HongKong',3);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('IL','Israel',4);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('IN','India',3);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('IT','Italy',1);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('JP','Japan',3);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('KW','Kuwait',4);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('MX','Mexico',2);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('NG','Nigeria',4);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('NL','Netherlands',1);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('SG','Singapore',3);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('UK','United Kingdom',1);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('US','United States of America',2);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('ZM','Zambia',4);
INSERT INTO countries(country_id,country_name,region_id) VALUES ('ZW','Zimbabwe',4);

/*Data for the table locations */
INSERT INTO locations(location_id,street_address,postal_code,city,state_province,country_id) VALUES (1400,'2014 Jabberwocky Rd','26192','Southlake','Texas','US');
INSERT INTO locations(location_id,street_address,postal_code,city,state_province,country_id) VALUES (1500,'2011 Interiors Blvd','99236','South San Francisco','California','US');
INSERT INTO locations(location_id,street_address,postal_code,city,state_province,country_id) VALUES (1700,'2004 Charade Rd','98199','Seattle','Washington','US');
INSERT INTO locations(location_id,street_address,postal_code,city,state_province,country_id) VALUES (1800,'147 Spadina Ave','M5V 2L7','Toronto','Ontario','CA');
INSERT INTO locations(location_id,street_address,postal_code,city,state_province,country_id) VALUES (2400,'8204 Arthur St',NULL,'London',NULL,'UK');
INSERT INTO locations(location_id,street_address,postal_code,city,state_province,country_id) VALUES (2500,'Magdalen Centre, The Oxford Science Park','OX9 9ZB','Oxford','Oxford','UK');
INSERT INTO locations(location_id,street_address,postal_code,city,state_province,country_id) VALUES (2700,'Schwanthalerstr. 7031','80925','Munich','Bavaria','DE');


/*Data for the table jobs */

INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (1,'Public Accountant',4200.00,9000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (2,'Accounting Manager',8200.00,16000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (3,'Administration Assistant',3000.00,6000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (4,'President',20000.00,40000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (5,'Administration Vice President',15000.00,30000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (6,'Accountant',4200.00,9000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (7,'Finance Manager',8200.00,16000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (8,'Human Resources Representative',4000.00,9000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (9,'Programmer',4000.00,10000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (10,'Marketing Manager',9000.00,15000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (11,'Marketing Representative',4000.00,9000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (12,'Public Relations Representative',4500.00,10500.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (13,'Purchasing Clerk',2500.00,5500.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (14,'Purchasing Manager',8000.00,15000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (15,'Sales Manager',10000.00,20000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (16,'Sales Representative',6000.00,12000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (17,'Shipping Clerk',2500.00,5500.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (18,'Stock Clerk',2000.00,5000.00);
INSERT INTO jobs(job_id,job_title,min_salary,max_salary) VALUES (19,'Stock Manager',5500.00,8500.00);


/*Data for the table departments */

INSERT INTO departments(department_id,department_name,location_id) VALUES (1,'Administration',1700);
INSERT INTO departments(department_id,department_name,location_id) VALUES (2,'Marketing',1800);
INSERT INTO departments(department_id,department_name,location_id) VALUES (3,'Purchasing',1700);
INSERT INTO departments(department_id,department_name,location_id) VALUES (4,'Human Resources',2400);
INSERT INTO departments(department_id,department_name,location_id) VALUES (5,'Shipping',1500);
INSERT INTO departments(department_id,department_name,location_id) VALUES (6,'IT',1400);
INSERT INTO departments(department_id,department_name,location_id) VALUES (7,'Public Relations',2700);
INSERT INTO departments(department_id,department_name,location_id) VALUES (8,'Sales',2500);
INSERT INTO departments(department_id,department_name,location_id) VALUES (9,'Executive',1700);
INSERT INTO departments(department_id,department_name,location_id) VALUES (10,'Finance',1700);
INSERT INTO departments(department_id,department_name,location_id) VALUES (11,'Accounting',1700);



/*Data for the table employees */

INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (100,'Steven','King','steven.king@sqltutorial.org','515.123.4567','1987-06-17',4,24000.00,NULL,9);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (101,'Neena','Kochhar','neena.kochhar@sqltutorial.org','515.123.4568','1989-09-21',5,17000.00,100,9);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (102,'Lex','De Haan','lex.de haan@sqltutorial.org','515.123.4569','1993-01-13',5,17000.00,100,9);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (103,'Alexander','Hunold','alexander.hunold@sqltutorial.org','590.423.4567','1990-01-03',9,9000.00,102,6);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (104,'Bruce','Ernst','bruce.ernst@sqltutorial.org','590.423.4568','1991-05-21',9,6000.00,103,6);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (105,'David','Austin','david.austin@sqltutorial.org','590.423.4569','1997-06-25',9,4800.00,103,6);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (106,'Valli','Pataballa','valli.pataballa@sqltutorial.org','590.423.4560','1998-02-05',9,4800.00,103,6);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (107,'Diana','Lorentz','diana.lorentz@sqltutorial.org','590.423.5567','1999-02-07',9,4200.00,103,6);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (108,'Nancy','Greenberg','nancy.greenberg@sqltutorial.org','515.124.4569','1994-08-17',7,12000.00,101,10);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (109,'Daniel','Faviet','daniel.faviet@sqltutorial.org','515.124.4169','1994-08-16',6,9000.00,108,10);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (110,'John','Chen','john.chen@sqltutorial.org','515.124.4269','1997-09-28',6,8200.00,108,10);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (111,'Ismael','Sciarra','ismael.sciarra@sqltutorial.org','515.124.4369','1997-09-30',6,7700.00,108,10);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (112,'Jose Manuel','Urman','jose manuel.urman@sqltutorial.org','515.124.4469','1998-03-07',6,7800.00,108,10);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (113,'Luis','Popp','luis.popp@sqltutorial.org','515.124.4567','1999-12-07',6,6900.00,108,10);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (114,'Den','Raphaely','den.raphaely@sqltutorial.org','515.127.4561','1994-12-07',14,11000.00,100,3);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (115,'Alexander','Khoo','alexander.khoo@sqltutorial.org','515.127.4562','1995-05-18',13,3100.00,114,3);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (116,'Shelli','Baida','shelli.baida@sqltutorial.org','515.127.4563','1997-12-24',13,2900.00,114,3);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (117,'Sigal','Tobias','sigal.tobias@sqltutorial.org','515.127.4564','1997-07-24',13,2800.00,114,3);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (118,'Guy','Himuro','guy.himuro@sqltutorial.org','515.127.4565','1998-11-15',13,2600.00,114,3);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (119,'Karen','Colmenares','karen.colmenares@sqltutorial.org','515.127.4566','1999-08-10',13,2500.00,114,3);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (120,'Matthew','Weiss','matthew.weiss@sqltutorial.org','650.123.1234','1996-07-18',19,8000.00,100,5);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (121,'Adam','Fripp','adam.fripp@sqltutorial.org','650.123.2234','1997-04-10',19,8200.00,100,5);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (122,'Payam','Kaufling','payam.kaufling@sqltutorial.org','650.123.3234','1995-05-01',19,7900.00,100,5);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (123,'Shanta','Vollman','shanta.vollman@sqltutorial.org','650.123.4234','1997-10-10',19,6500.00,100,5);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (126,'Irene','Mikkilineni','irene.mikkilineni@sqltutorial.org','650.124.1224','1998-09-28',18,2700.00,120,5);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (145,'John','Russell','john.russell@sqltutorial.org',NULL,'1996-10-01',15,14000.00,100,8);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (146,'Karen','Partners','karen.partners@sqltutorial.org',NULL,'1997-01-05',15,13500.00,100,8);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (176,'Jonathon','Taylor','jonathon.taylor@sqltutorial.org',NULL,'1998-03-24',16,8600.00,100,8);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (177,'Jack','Livingston','jack.livingston@sqltutorial.org',NULL,'1998-04-23',16,8400.00,100,8);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (178,'Kimberely','Grant','kimberely.grant@sqltutorial.org',NULL,'1999-05-24',16,7000.00,100,8);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (179,'Charles','Johnson','charles.johnson@sqltutorial.org',NULL,'2000-01-04',16,6200.00,100,8);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (192,'Sarah','Bell','sarah.bell@sqltutorial.org','650.501.1876','1996-02-04',17,4000.00,123,5);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (193,'Britney','Everett','britney.everett@sqltutorial.org','650.501.2876','1997-03-03',17,3900.00,123,5);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (200,'Jennifer','Whalen','jennifer.whalen@sqltutorial.org','515.123.4444','1987-09-17',3,4400.00,101,1);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (201,'Michael','Hartstein','michael.hartstein@sqltutorial.org','515.123.5555','1996-02-17',10,13000.00,100,2);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (202,'Pat','Fay','pat.fay@sqltutorial.org','603.123.6666','1997-08-17',11,6000.00,201,2);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (203,'Susan','Mavris','susan.mavris@sqltutorial.org','515.123.7777','1994-06-07',8,6500.00,101,4);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (204,'Hermann','Baer','hermann.baer@sqltutorial.org','515.123.8888','1994-06-07',12,10000.00,101,7);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (205,'Shelley','Higgins','shelley.higgins@sqltutorial.org','515.123.8080','1994-06-07',2,12000.00,101,11);
INSERT INTO employees(employee_id,first_name,last_name,email,phone_number,hire_date,job_id,salary,manager_id,department_id) VALUES (206,'William','Gietz','william.gietz@sqltutorial.org','515.123.8181','1994-06-07',1,8300.00,205,11);


/*Data for the table dependents */

INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (1,'Penelope','Gietz','Child',206);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (2,'Nick','Higgins','Child',205);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (3,'Ed','Whalen','Child',200);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (4,'Jennifer','King','Child',100);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (5,'Johnny','Kochhar','Child',101);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (6,'Bette','De Haan','Child',102);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (7,'Grace','Faviet','Child',109);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (8,'Matthew','Chen','Child',110);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (9,'Joe','Sciarra','Child',111);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (10,'Christian','Urman','Child',112);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (11,'Zero','Popp','Child',113);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (12,'Karl','Greenberg','Child',108);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (13,'Uma','Mavris','Child',203);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (14,'Vivien','Hunold','Child',103);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (15,'Cuba','Ernst','Child',104);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (16,'Fred','Austin','Child',105);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (17,'Helen','Pataballa','Child',106);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (18,'Dan','Lorentz','Child',107);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (19,'Bob','Hartstein','Child',201);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (20,'Lucille','Fay','Child',202);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (21,'Kirsten','Baer','Child',204);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (22,'Elvis','Khoo','Child',115);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (23,'Sandra','Baida','Child',116);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (24,'Cameron','Tobias','Child',117);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (25,'Kevin','Himuro','Child',118);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (26,'Rip','Colmenares','Child',119);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (27,'Julia','Raphaely','Child',114);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (28,'Woody','Russell','Child',145);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (29,'Alec','Partners','Child',146);
INSERT INTO dependents(dependent_id,first_name,last_name,relationship,employee_id) VALUES (30,'Sandra','Taylor','Child',176);

User (optional step)

Although it is easiest to just do the exercises as a super user, logging in with
sudo mysql you might instead want to do these exercises as a normal user. To do that, first log in first as as super user, then create a user and grant permissions.

CREATE USER 'jamesbaldwin'@'localhost' IDENTIFIED BY 'Password123';
GRANT ALL PRIVILEGES ON sql_tutorial.* TO 'jamesbaldwin'@'localhost';

Where sql_tutorial is replaced by the name of your database.
Where Password123 is replaced by a password.

Logging in for that user will be with

mysql -u jamesbaldwin -p

Exercises

Solutions

Schema

mysql> SELECT TABLE_NAME, COLUMN_NAME FROM information_schema.columns WHERE table_schema = 'sql_tutorial' ORDER BY COLUMN_NAME;          
+-------------+-----------------+
| TABLE_NAME  | COLUMN_NAME     |
+-------------+-----------------+
| locations   | city            |
| locations   | country_id      |
| countries   | country_id      |
| countries   | country_name    |
| departments | department_id   |
| employees   | department_id   |
| departments | department_name |
| dependents  | dependent_id    |
| employees   | email           |
| dependents  | employee_id     |
| employees   | employee_id     |
| dependents  | first_name      |
| employees   | first_name      |
| employees   | hire_date       |
| employees   | job_id          |
| jobs        | job_id          |
| jobs        | job_title       |
| employees   | last_name       |
| dependents  | last_name       |
| locations   | location_id     |
| departments | location_id     |
| employees   | manager_id      |
| jobs        | max_salary      |
| jobs        | min_salary      |
| employees   | phone_number    |
| locations   | postal_code     |
| countries   | region_id       |
| regions     | region_id       |
| regions     | region_name     |
| dependents  | relationship    |
| employees   | salary          |
| locations   | state_province  |
| locations   | street_address  |
+-------------+-----------------+
33 rows in set (0.00 sec)

mysql> SELECT TABLE_NAME, COLUMN_NAME FROM information_schema.columns WHERE table_schema = 'sql_tutorial';
+-------------+-----------------+
| TABLE_NAME  | COLUMN_NAME     |
+-------------+-----------------+
| countries   | country_id      |
| countries   | country_name    |
| countries   | region_id       |
| departments | department_id   |
| departments | department_name |
| departments | location_id     |
| dependents  | dependent_id    |
| dependents  | employee_id     |
| dependents  | first_name      |
| dependents  | last_name       |
| dependents  | relationship    |
| employees   | department_id   |
| employees   | email           |
| employees   | employee_id     |
| employees   | first_name      |
| employees   | hire_date       |
| employees   | job_id          |
| employees   | last_name       |
| employees   | manager_id      |
| employees   | phone_number    |
| employees   | salary          |
| jobs        | job_id          |
| jobs        | job_title       |
| jobs        | max_salary      |
| jobs        | min_salary      |
| locations   | city            |
| locations   | country_id      |
| locations   | location_id     |
| locations   | postal_code     |
| locations   | state_province  |
| locations   | street_address  |
| regions     | region_id       |
| regions     | region_name     |
+-------------+-----------------+
33 rows in set (0.00 sec)

Next: Plain Writing
Previous: SQL Exercises for a 299,938 Line Database

SQL Exercises for a 40 Line Database

Create a database #

User (optional step) #

Exercises #

Solutions #

Schema #

Create a database

User (optional step)

Exercises

Solutions

Schema