Archive for October 2017

Structured Query Language (SQL) is used to manage data within a database. It uses relational algebra to create commands that retrieve or maintain the data. Some examples of commands are CREATE – to create tables, RENAME – to rename tables, SELECT – to select data records, INSERT – to insert data records and DELETE –…

Logical Design – must be carefully designed to incorporate all the data and applications needed, including possible future changes and developments. Define the output(s) required, then work backwards to include all the elements needed. Database Creation – set up tables, relationships, forms for inputting data, queries and reports. This needs someone with good technical understanding…

Databases are systems used for the storage, maintenance and retrieval of data. In the modern ‘internet age’, databases are used widely to power ‘dynamic websites’, meaning prices, product details, mailing lists and other large groups of data can be easily updated and searched. Website content management and customer relationship managements (CRM) systems use databases to…