Essay On Database And Information Systems

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Recommended: The history of relational databases

Database & Information Systems is a database used in everyday life, it was used in the past, is used in the present, and will continue to be used in the future. There are single and multiuser databases, as well as N Tier an client servers. There are many types of Data models such as, relational and star schema. Databases and information systems are even used on the web, these types can include PHP scripts and CGI scripts. To understand how Database & Information Systems came about, one has to look at the history of data.

In ancient times Humans at some point decided to keep information. Most of this information was kept on walls and scrolls. Elaborate types of database systems were created and used by businesses big and small and government. …show more content…

The new databases are designed to keep the data safe and secure. A database has tables that include groups of related data fields, these are known as records. As stated before data can be informative in one location such as the ancients used to have. Databases are not limited to just computer or electronics, a phone book is considered a database. If you break the phone book down, it has categories and rows. The names are in alphabetical order, it also has them listed by zip code and city. If you base your information on specific things like zip code, city, last name, then you can see that as a query. There are many dvantages to using a database and information system. The main things are that the ability to control redundancy, the information can be controlled, it can restrict access, as well as share data, it can also back up an recover the information. Before the use of computers, the only way to back up or protect against restricted access was to make copy’s and protect or hide them. The biggest benefit is that is can reduce information you do not need. It also helps with multiple files. Kind of like have a stack of baseball card, you can have 2 stacks, one with many copies, and one with only 1 of each. The database would bring up the ones with only 1 each which helps in redundancy. Another benefit is that is can share

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