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ORACLE 12C: SQL INFS1603 Business Databases (Semester 1 2018) STUDENT ID: z5214048 STUDENT NAME: Anthony Nguyen

OVERRIDING INHERITANCE Overriding: the process of replacing a method inherited from a superclass by a more specific implementation of that method in a subclass Extensions: add to the operation Restriction: limit the operat...

DATABASE DEVELOPMENT PROCESS INFORMATION SYSTEMS Information systems are systems that use IT to capture, transmit, store, retrieve, manipulate or display information used in one or more business processes. Important issues...

CONVERSION TO FIRST NORMAL FORM The first normal form (1NF) describes the tabular format in which: 1) All of the key attributes are defined, or no multivalued attributes 2) There are no repeating groups on th...

ADVANCED DATA MODELING THE EXTENDED ENTITY RELATIONSHIP MODEL The extended entity relationship model (EERM) is the result of adding more semantic constructs to the original entity relationship (ER) model. An extend...

RELATIONSHIPS Relationship: is an association between entities Participants: are the entities that participate in the relationship Each relationship is identified by a name that describes the relationsh...

NORMALIZATION INFERENCES FUNCTIONAL DEPENDENCIES (FDS) F of is a set of given FDs F+ is the set of all implied FDs. F+ is called the closure of F Fmin is the minimal set (minimal cover) of FDs ...

ENTITY RELATIONSHIP MODEL THE ENTITY RELATIONSHIP MODEL (ERM) An ER model is a detailed, logical representation of the data for an organisation or for a business area The ER model is expressed in terms...

OO MODELLING BENEFITS AND LIMITATIONS OF ER/RDB DESIGN BENEFITS OF RDB DESIGN ER modelling is common and an easy design technique Models can be transformed, via normalization techniques, to be implem...

DATA MODELS DATA MODELLING AND DATA MODELS Data Modelling: process of creating a specific data model for a determined problem domain. Problem Domain: a clearly defined area within the real-world environment, with a ...

INFERENCES INFERENCE Inference: the process or the outcome of inferring (deriving by reasoning or concluding from premises or evidence) Deductive Inferences: arriving at conclusions based on the strict logical...

RELATIONAL MODELING A LOGICAL VIEW OF DATA Characteristics of a Relational Table: Relations: a table which is perceived as a two-dimensional structure composed of rows and columns Tuples: are the rows...

Monday, 26 February 2018 INFS1603 LECTURE 1 WK1 Daniel Schlagwein schlagwein@unsw.edu.au INFS1603 Study Guideline Learning how to use Visio Learning how to use Oracle Attending lectures, tutorials, PASS Consultation P...

1.1 Introduction to Databases ER model > Relational model ( SQL DDL Implement table model in oracle SQL DML Get data inout of database, merge, update Designing the database, then creating and using the database 1.2 Data Vs...

DATABASE SYSTEMS DATA VS INFORMATION Data: meaningful facts concerning things such as people, places, events or concepts Information: data that has been processed and presented in a form for human interpretation, of...