Digital Signatures
Digital signatures are very much like handwritten signatures, they are proof of authenticity. Digital signatures are one of the three data protection methods of authentication. […]
Managing Data
Centralised vs Distributed Databases
Relational Database Management Systems (RDBMS) support centralised and distributed databases. A centralised database system is in one location (head office, data centre) and accessed from […]
Data warehouse
Data warehouse A large store of data gathered from a wide range of sources, both old and new, within a company (and sometimes externally) and […]
Data validation
Data validation is important in various areas of computer science – database data entry, data warehousing, program input, networking. Any time data is communicated it […]
Encryption
Transferring data over networks is inherently insecure. The traffic passes through multiple routers and if any of those routers are compromised by a hacker or […]
Database visual interface
Relational databases can look very confusing with the many tables, records, and fields. Databases are used to hold large amounts of data. This means navigating […]
Privacy (Australian Privacy Act 1988)
There are legal requirements for large companies and companies who hold sensitive information (medical businesses, gyms, market research, schools, etc) about the public to protect that […]
Full, incremental, and differential backup
Full backup is a backup of all the data, this is the initial backup. Incremental backup backs up data that has been modified since the […]
Data Integrity (database)
Data integrity is about ensuring all data is consistent and accurate throughout a database. Referential integrity ensures all foreign keys have a primary key in another […]