Relational Database Systems 1 - ifis.cs.tu-bs.de

Relational

Database Systems 1

Wolf-Tilo Balke

Florian Plötzky and Denis Nagel

Institut für Informationssysteme

Technische Universität Braunschweig

http://www.ifis.cs.tu-bs.de

2

People involved

Relational Database Systems 1 – Wolf-Tilo Balke – Technische Universität Braunschweig

• Who is who ?

– Wolf-Tilo Balke

• lecture recap, exams

– Florian Plötzky

• Exercises (“Große Übung”)

– Denis Nagel

• homework / tutorials

– Regine Dalkiran

• office

• In case of questions, feel free to ask us.

• Since the course encompasses more than 100

participants it is held online … again …

– 5 CP are earned by passing the final (written) exam

and achieving 50% of the homework score

• Today:

– Organization and course overview

• Next week:

– Actual first lecture

Relational Database Systems 1 – Wolf-Tilo Balke – Technische Universität Braunschweig 3

Yet Another Online Semester

• Lecture Videos

– Uploaded for on-demand usage

• Online Lecture Recap

– November 4, 2021 to February 17, 2022

– 15:00 – 16:00 (estimated)

• Exercises (“Große Übung”)

– Immediately after the lecture recap (~16:00 – 17:00)

• Weekly Homework

– … can be downloaded from our Website

4Relational Database Systems 1 – Wolf-Tilo Balke – Technische Universität Braunschweig

Course Elements

• Splitted in two parts:

– On-demand lecture videos:

• New topics and Detours every week

• Uploaded each Thursday starting today!

– Lecture Recap

• Recap of the last video and Q&A

• Livestream every Thursday at 15:00

• Starting at November 4, 2021

• Please watch the corresponding video before the

recap!

• Completed by a written exam in March 2022Relational Database Systems 1 – Wolf-Tilo Balke – Technische Universität Braunschweig 5

The Lecture

• Every week after the recap we will:

– take a look on larger examples

– solve non-trivial exercises

– point out typical mistakes and common ways to solve

particular problems

– not introduce new concepts!


Exercises (aka „Große Übung“)

• Homework assignments

– can be downloaded from our website after each recap on

Thursdays

• Homework must be completed within groups of 2

students (no larger or smaller groups, please!)

• To be send in before the next recap (= 1 week of time to complete them)

– Send it by mail to your HiWi by next weeks Thursday at 15:00

– Please send us PDF files only!

– Mark each page with• your names and matriculation numbers


Homework and Tutorials

• Additionally: Tutorial groups

– led by our HiWis

– homework discussion

– This year: mixed setting

• Again: in order to pass this module (5CP) you

need to

1) … achieve 50% of homework points

(Studienleistung, ungraded)

2) … pass the exam (Prüfungsleistung, graded)



• The homework is collected and graded by our

HiWis

• We offer tutorial groups in two different

flavors:

– Offline groups meeting in our seminar room (IZ 251)

– Online groups (BBB room of the corresponding

HiWi)

• Let‘s take a poll first!

– Would you prefer an offline or online group?



• The first sheet is assigned to you after the next

lecture (November 4)

– Please hand in your solution by mail (to your respective

HiWi) before the corresponding next lecture (e.g.

for the first sheet until November 11, 15:00)

– Beware! Your solutions are graded with 0 points if:

• They are handed in late

• Names and/or matriculation numbers on the solutions are

missing

– A file name is not enough!

• The file send by you is not a PDF file

• Your solution is plagiarized



• So, who is my HiWi?

– We will open Stud.IP groups where you can assign

yourself to a tutorial group

• Please make sure, that both, you and your partner are

assigned to the same group in Stud.IP!

• The groups will be opened starting 01.11 18:00 till 05.11 18:00

– Hand in your homework to the HiWi in charge of your

group by email

– The HiWi will:

• send you the corrected homework before his tutorial starts

• discuss the respective homework in his tutorial session (online or

offline)




Tutorial Groups

1.2.

3.

Open: 01.11

18:00 till

05.11 18:00

• Although this lecture is online (again) we try our best to offer you a great lecture!

• If you have any question please ask us on Thursdays directly, ask your HiWis during the tutorials or contact us otherwise

– Note: for any questions regarding the grading of your homework please contact your HiWi directly

• Also: Please be aware that asking questions and discussing topics are the main drivers of learningso please don‘t get and communicate with your peers and us!


Communication

• Lecture video upload:

– Every Thursday, starting today after the lecture

• Recaps and exercises:

– Every Thursday beginning at 15:00 online, starting next Thursday (November 4)

• Homework and Tutorials

– First exercise sheet next week (November 4)

• Therefore it is due November 11, 15:00

– Registration for tutorial groups: 01.11 (18:00) till 05.11 (18:00)

– First tutorials starting on 15.11.2021


Schedule Summary


End of Orga …

… and now for something completely different!

• Its mandatory in your course of study….

• Database system are an integral part of most

businesses, workflows and software products

• There is an abundance of jobs for

people with good database skills

– help yourself to put you into a good

position within the job market

– prepare for a sunny and wealthy future!


Why should you be here?

Job descriptions also exactly describe this course…


Why should you be here?

• After successfully completing this course you

should be able to

– explain the fundamental terms of

• databases in general

• the relational model

• theoretical and practical aspects of query languages

• conceptual and logical design of databases including

normalization

• application programming

• further concepts like constraints, views, indexes,

transactions and object databases


Course Objectives

• You should furthermore be able to

– design and implement a database for any specified

domain using ER-Diagrams or UML-Diagrams, the

Relational Model and SQL-DDL

– normalize a given relational database schema

– enhance the database with views, indexes,

constraints, and triggers

– formulate data retrieval queries in SQL, Relational

Algebra, and Relational Calculi

– write programs accessing databases using JDBC


Course Objectives


Contents of this Course

Lecture Topic

0 Organization (today)

1 Introduction

2 Data Modeling 1

3 Data Modeling 2

4 View Integration

5 Relational Model

6 Relational Algebra

7 Relational Calculus

8 SQL 1

9 SQL 2

10 Normalization

11 Application Programming 1

12 Application Programming 2

13 Object Persistence

• Fundamentals of Database Systems (EN)– Elmasri and Navathe

– Addison-Wesley

• Database System Concepts (SKS)– Silberschatz, Korth, and Sudarshan

– McGraw Hill

• Database Systems (GUW)– Garcia-Molina, Ullman, and Widom

– Prentice Hall

• Datenbanksysteme (KE)– Kemper, and Eickler

– Oldenbourg


Recommended Literature

• Database Modeling and Design:Logical Design– Teorey, Lightstone, and Nadeau

– Morgan Kaufmann– http://www.sciencedirect.com/science/book/9780123820204

• SQL Cookbook– Molinaro

– O’Reilly

• Using the New DB2– Chamberlin

– AP Professional

• W3Schools SQL– http://www.w3schools.com/sql/

EN 1.1 22Relational Database Systems 1 – Wolf-Tilo Balke – Technische Universität Braunschweig

Recommended Literature

• Basic course in databases

– Relational Databases I (Bachelor)

• What can we do with an DBMS?

• Conceptual modeling, data retrieval, relational model, SQL,

building applications, basic data models

– Relational Databases II (Master)

• How can we implement a DBMS?

• Storage models, query optimization, transactions,

concurrency control, recovery, data security


Courses at ifis

• Advanced courses in Information Systems

(Master)

– Information Retrieval and Web Search Engines

– Multimedia Databases

– Distributed Data Management

– Knowledge-Based Systems and Deductive Databases

– Data Warehousing and Data Mining Techniques


Courses at ifis

• 1. Lecture on RDB 1

– What is a database?

– Characteristics of a DB

– History of DBs

• Dates:

– Lecture Upload: 28.10.2021

– Recap: 04.11.2021, 15:00


Next Week

Documents

Relational Database Systems 1 - ifis.cs.tu-bs.de