Avaliable at: https://github.com/dbsmasters/bdsmasters The current project is implemented in the context of the course "Big Data Management Systems" taught by Prof. Chatziantoniou in the Department of Management Science and Technology (AUEB). The aim of the project is to familiarize the students with big data management systems such as Hadoop, Redis, MongoDB and Azure Stream Analytics.

1. Redis Project
Relational databases & Key-Value systems
Athens University of Economics and Business
Dpt. Of Management Science and Technology
Prof. Damianos Chatziantoniou
| lkoutsokera@gmail.com
| stratos.gounidellis@gmail.com
Lamprini Koutsokera
Stratos Gounidellis
BDSMasters

2. SQL Server vs. Redis
2
Description Microsoft’s relational DBMS In-memory data structure store,
used as database
Database model Relational DBMS Key-value store
Implementation language C++ C
Data scheme yes schema-free
Triggers yes no
Replication methods yes, depending the SQL-Server Edition Master-slave replication
Partitioning methods tables can be distributed across Sharding
several files, sharding through
federation
Project
from a relational database to a key-value systemReferences: [1]

3. From theory to practice
3

4. Tools
4

5. Required installations
5
References: [2]
Redis installation
check if
Redis is
working
Required python packages installation

6. From software configuration to coding
6

7. Python coding [1] – table parsing
7
Relational Data Insertion
References: [3]
Python coding [1] – table parsing

8. Python coding [2] – query parsing
8
References: [3]

9. Python coding [3] – query parsing
9
Query Execution
References: [3]

10. Python coding [4] – query parsing
10
Query Execution
References: [3]

11. Python coding [5] – query parsing
11
Query Execution
References: [3]

12. 12
Python coding [6] – query parsing
Query Execution
References: [3]

13. 13
Python coding [7] – code metrics
Query Execution
Unit Testing
Relational Data Insertion

14. 14
Assumptions - Restrictions
 The text file follows the structure described below:
o first line (SELECT): a list of table_name.attribute_name, delimited by the character ",".
o second line (FROM): a list of table names, delimited by the character ",".
o third line (WHERE): a simple condition, consisting only of AND, OR, NOT, =, <>, >, <, <=, >= and
parentheses.
o fourth line (ORDER BY): a simple clause, containing either an attribute name and the way of
ordering (ASC or DESC) or RAND().
o fifth line (LIMIT): a number, specifying the number of rows to be displayed.
 The ORDER BY clause contains only one attribute.
 The sql query is correct according to the sql syntax.
 The names of the tables and the attributes are correct.
 In case a clause is skipped then the corresponding line remains blank.

15. Query examples / results [1]
15
1 2
3

16. Query examples / results [2]
16
4
5

17. Query examples / results [3]
17
6 7

18. Style check, code analysis & unit testing
18
[1] pep8 [2] flake8 [3] pylint

19. References
[1] Db-engines.com. (n.d.). Memcached vs. Microsoft SQL Server vs. Redis Comparison. [online] Available at:
https://db-engines.com/en/system/Memcached%3bMicrosoft+SQL+Server%3bRedis [Accessed 13 Apr. 2017].
[2] Redis.io. Redis Quick Start. https://redis.io/topics/quickstart [Accessed 12 Apr. 2017].
[3] Peter Cooper. Redis 101 - A whirlwind tour of the next big thing in NoSQL data storage.
https://www.scribd.com/document/33531219/Redis-Presentation [Accessed 12 Apr. 2017].
| lkoutsokera@gmail.com
| stratos.gounidellis@gmail.com
Lamprini Koutsokera
Stratos Gounidellis
BDSMasters