Data Manipulation with MySQLEvangelos Pournaras, Izabela Moise, Dirk Helbing

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About MySQL

• Open source SQL database system• Dual license - GPL + commercial license• Relational database management system• Integration with Java, Python, PHP, Perl, etc.

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Language Elements

ClausesExpressionsPredicates

QueriesStatementsInsignificant white space

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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

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Data Manipulation

Data Manipulation Language (DML)

• INSERT

• UPDATE

• DELETE

• MERGE

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Data Types

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Numeric Data Types

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String Data Types

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Data & Time Data Types

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Spatial Data Types

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Operators

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Arithmetic Operators

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Comparison Operators

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Logical Operators

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MySQL Demonstration

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MAMP Software Package

Easy all-in installationhttp://www.mamp.info/en/

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NervousNet Database

SENSOR_0AccelerometerSENSOR_1BatterySENSOR_2GyroscopeSENSOR_3HumiditySENSOR_4LightSENSOR_5Magnetic

SENSOR_6ProximitySENSOR_7TemperatureSENSOR_8NoiseSENSOR_9PressureSENSOR_aConnectivitySENSOR_bBluetooth Beacon

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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

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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’)

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Proposed Literature

Mysql 5.5 reference manual.Technical report, MySQL AB, 2015.

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What is next?

• Visualization and plotting

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