For the purpose of this discussion, we consider a database to be a collection of related data and a databse management system (DBMS) to be the software that manages and controls access to the database. A database application is simply a program that interacts with the database at some po...
Foreign Key constraints Lecture 2 > Section 3 > Foreign Keys Foreign Key constraints Suppose we have the following schema: And we want to impose the following constraint: ‘Only bona fide students may enroll in courses’ i.e., a student must appear in the Students table to enroll in a cou...
Chapter 4 Introduction to MySQL MySQL “the world’s most popular open-source database application” “commonly used with PHP” Relational Database On csweb.hh.nku.edu, you have a database db_fall15_username (ex. db_fall15_frank) Collection of tables – look like Excel spreadsheets 4 Each...
Cyberlaundering refers to the way in which the mechanism of the internet is used to launder illegal proceeds of crime in order to make such proceeds appear clean. The advent of the internet has yielded this new breed of crime. On the internet, there are various avenues exploited by criminals...
1.1Brief introduction to database system 1.1.1Data,database,database management system, database system 1.1.3Generation and development of Database Management Technology 1.1.3Characteristic of database system 1.2Data Model 1.2.1Two type data model 1.2.2Main elements of data model 1.2....
Copy data from various OLTP systems Optimize data organization, system tuning for OLAP Transactions aren’t slowed by big analysis queries Periodically refresh the data in the warehouse * HD-ITR * Chapter 1 Introduction 1.1 From database to data warehouse 1.2 What is a data warehouse 1.3 DBMS ...
DatabaseManagementSystem(DBMS)CollectionofinterrelateddataSetofprogramstoaccessthedataDBMScontainsinformationaboutaparticularenterpriseDBMSprovidesanenvironmentthatisbothconvenientandefficienttouse.DatabaseApplications:Databasestouchallaspectsofourlives PurposeofDatabaseSystem Intheearlydays,databaseapplicationswerebuiltontop...
2.2. Generating a Digital Bathymetric Model Methods to generate DBMs have not significantly changed in the last few years. For example, many studies, including [21], still use the CUBE (Combined Uncertainty and Bathymetric Estimator) algorithm [22] to grid multibeam echosounder data. Given the ...