Tietokannat (5 op)

Arviointiasteikko

H-5

Sisällön jaksotus

In this course, students learn to use and design relational databases as well as understand differences to NoSQL/document databases. First, students familiarize with database thinking and the principles of data management from a quality perspective. Key topics include data modeling using ER diagrams, relational schema representations and normalization technique for validating the quality of the database design. Second, students apply structured query language (SQL) to create a database (SQL DDL), and to manipulate and search data in the database (SQL DML). Last, students learn differences between SQL and NoSQL databases through desinging and using MongoDB document database. The course consists of lectures, exercises, a practical work and final exam.

Topics (and hours used in teaching sessions) in the order of appearance:
- Relational DBMS and DB use 6h
- Relational database design 9h
- Basics of SQL 18h
- Introduction to document database MongoDB 6h

Tavoitteet

Kurssin suoritettuaan opiskelija osaa:
- ymmärtää erityyppisiä tietokantoja ja arvioida niiden soveltuvuutta eri tarkoituksiin.
- suunnitella ja toteuttaa tarpeiden mukainen tietokanta sekä etsiä ja muokata tietokannan tietoja
- käyttää vähintään yhtä tunnettua tietokannan hallintajärjestelmää
- osaa kuvata tietokannan hallintatehtäviä

Sisältö

- Erityyppiset tietokannat
- Tietokantojen määrittely, suunnittelu ja toteutus
- SQL:n perusteet
- Tietokannan hallinta DBMS:ssä

Oppimateriaalit

Lecture slides and examples by the teacher
Lot of internet material available
Supporting books about relational databases and SQL are available in Internet.
MongoDB has good tutorials and documentation as well.

Opetusmenetelmät

The course consists of
1) lecture and home exercises (small queries and design tasks)
2) personal practical work (creating your own database) and
3) exam (testing your acquired skills).

Lecture exercises are divided into weekly topics. Each week introduces a new topic that builds on top of previous weeks. Each lecture begins with an introduction to the topic of the week, which includes practical examples and learning material. Exercises are done individually or in small groups with the help of the teacher .

NOTE! Lecture exercises are done and checked during the lecture exercises.

Tenttien ajankohdat ja uusintamahdollisuudet

Not decided

Pedagogiset toimintatavat ja kestävä kehitys

- Learning by doing and trial&error with lecture exercises,
- Introductory lectures and examples provided by the teacher.
- Collaborating with other students in the lectures.

Toteutuksen valinnaiset suoritustavat

Not available

Opiskelijan ajankäyttö ja kuormitus

Participating weekly in lectures (exercises): a' 3 hours * 14 = 42h
Home exercises 10h
Individual practical work 60h
Exam 3 hours + preparing 20h

Student workload is about 5-8 h / week if you are new to relational databases.

Arviointimenetelmät ja arvioinnin perusteet

The course is evaluated on a scale of 0-5. The grade is based on the points collected during the course. Passing the course requires 40% of the exam points and 40% of the practical work points, as well as 50% of the total points of the course.

The points of the course are distributed as follows between the different areas of the course:
Lecture exercises and homework: 30%
Practical work: 35 %
Exam: 35%

Total score in relation to grade:
less than 50% => Fail
50-59% => 1
60-69% => 2
70-79% => 3
80-89% => 4
90-100% => 5

Hylätty (0)

Less than 50% of total points collected or the exam is failed (less than 40% of total points of the exam) or practical work is failed (less than 40% of the total points).

Arviointikriteerit, tyydyttävä (1-2)

- Is able to implement relational database management software (DBMS) and know the tasks related to database maintenance
- Is able to design a relational database using conceptual model technique (ER or similar notation)
- Can implement a relational database with SQL statements
- Can retrieve, add and edit data in a relational database with simple SQL statements
- Knows different types of databases and their uses

Less than 70% of total points collected.

Arviointikriteerit, hyvä (3-4)

In addition
- Can interpret the concept model and implement a relational database based on it
- Understands the meaning and use of keys and reference integrity in relational databases
- Is able to use SQL statements for data retrieval in various ways, such as combining data from different tables
- Understands the principle and purpose of normalization
- Can introduce non-relational databases and evaluate their suitability for different purposes (MongoDB)

70-90% of total points collected.

Arviointikriteerit, kiitettävä (5)

In addition
- Is able to independently develop a high-quality concept model based on the user requirements
- Can use normalization to improve the quality of a relational database
- Can use SQL statements for information retrieval in various ways, such as sub-groupings and sub-queries
- Can do basic queries and design a simple NoSQL database (MongoDB)

More than 90% of total points collected.

Lisätiedot

All returns and communications take place through the It's Learning platform.

There are no pre-requisites for course performance in this course, and this course does not require previously acquired skills. It is necessary to have your own computer and know how to use it.
We use the relational database and its management environment for practical training (MySQL, MariaDB, SQLite or similar used in UwAmp, XAMPP or WAMP or similar) and must be installed on the student's personal computer. The necessary applications are installed in a lecture together.
In addition to relational databases, students learn about MongoDB cloud services, Mongo Shell, and practice designing and using a document-based database.