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Data Manipulation with MySQLEvangelos Pournaras, Izabela Moise, Dirk Helbing
Evangelos Pournaras, Izabela Moise, Dirk Helbing 1
About MySQL
• Open source SQL database system• Dual license - GPL + commercial license• Relational database management system• Integration with Java, Python, PHP, Perl, etc.
Evangelos Pournaras, Izabela Moise, Dirk Helbing 2
Language Elements
ClausesExpressionsPredicates
QueriesStatementsInsignificant white space
Evangelos Pournaras, Izabela Moise, Dirk Helbing 3
Queries
• Most common operation
• Data retrieval
• No persistent effects on the database
• Describes the data, actual retrieval operations handled by thedatabase management system
• subqueries, e.g. in a WHERE predicate
SELECT column FROM table WHERE predicateGROUP BY column HAVING predicate ORDER BY column
Evangelos Pournaras, Izabela Moise, Dirk Helbing 4
Data Manipulation
Data Manipulation Language (DML)
• INSERT
• UPDATE
• DELETE
• MERGE
Evangelos Pournaras, Izabela Moise, Dirk Helbing 5
Data Types
Evangelos Pournaras, Izabela Moise, Dirk Helbing 6
Numeric Data Types
Evangelos Pournaras, Izabela Moise, Dirk Helbing 7
String Data Types
Evangelos Pournaras, Izabela Moise, Dirk Helbing 8
Data & Time Data Types
Evangelos Pournaras, Izabela Moise, Dirk Helbing 9
Spatial Data Types
Evangelos Pournaras, Izabela Moise, Dirk Helbing 10
Operators
Evangelos Pournaras, Izabela Moise, Dirk Helbing 11
Arithmetic Operators
Evangelos Pournaras, Izabela Moise, Dirk Helbing 12
Comparison Operators
Evangelos Pournaras, Izabela Moise, Dirk Helbing 13
Logical Operators
Evangelos Pournaras, Izabela Moise, Dirk Helbing 14
MySQL Demonstration
Evangelos Pournaras, Izabela Moise, Dirk Helbing 15
MAMP Software Package
Easy all-in installationhttp://www.mamp.info/en/
Evangelos Pournaras, Izabela Moise, Dirk Helbing 16
NervousNet Database
SENSOR_0AccelerometerSENSOR_1BatterySENSOR_2GyroscopeSENSOR_3HumiditySENSOR_4LightSENSOR_5Magnetic
SENSOR_6ProximitySENSOR_7TemperatureSENSOR_8NoiseSENSOR_9PressureSENSOR_aConnectivitySENSOR_bBluetooth Beacon
Evangelos Pournaras, Izabela Moise, Dirk Helbing 17
SQL Statements I
>SHOW DATABASES>SHOW TABLES>DESCRIBE SENSOR_0>CREATE DATABASE TESTDB>SELECT UUID,RecordTime,Rms FROM SENSOR_8 WHERE Rms>20000>SELECT UUID,RecordTime,Rms FROM SENSOR_8WHERE Rms BETWEEN 10000 AND 20000>SELECT UUID,RecordTime,Rms FROM SENSOR_8WHERE Rms>20000 UNION SELECT UUID,RecordTime,TemperatureFROM SENSOR_7 WHERE Temperature>36.0>SELECT DISTINCT UUID FROM SENSOR_8 WHERE Rms>15000
Evangelos Pournaras, Izabela Moise, Dirk Helbing 18
SQL Statements II
>CREATE TABLE table_01(id INT)>INSERT INTO table_01(id) VALUES(2)>UPDATE table_01 SET id=200 WHERE id=1;>CREATE TABLE table_02(id INTEGER,info VARCHAR(50),date DATE NOT NULL,PRIMARY KEY (id, info));>INSERT INTO table_02 (id, info, date)VALUES (1, ’Hello’, ’1990-01-05’)
Evangelos Pournaras, Izabela Moise, Dirk Helbing 19
Proposed Literature
Mysql 5.5 reference manual.Technical report, MySQL AB, 2015.
Evangelos Pournaras, Izabela Moise, Dirk Helbing 20
What is next?
• Visualization and plotting
Evangelos Pournaras, Izabela Moise, Dirk Helbing 21
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