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Databases. Past, Present And Future. Essay

1179 words - 5 pages

DatabasesSince then man has been able to store information on paper allowing many people to share the same information in a short amount of time. In the past business owners had files upon files filled with our basic everyday data on just one customer or worker. If you had 100 customers you would have a file cabinet filled with papers, and as we all know 100 customers is not a lot in today's standards. Every time you wanted to find out the smallest amount of information on one of these customers or workers you would have to go through all of these papers just to find out where they might live, or if they have children. Thankfully within the last 20 or so years we have developed databases to store all this information. So instead of searching through a bunch of papers we are now able to find the information we need with just a few clicks of a mouse.A database is a collection of data that is stored in a standardized format, designed to accessed information in a fast and easy way by multiple users (Page 3 Post.). These databases can be accessed using a database management system or DBMS. A DBMS is a software, that defines a database, stores data, supports a query language, produces reports, and creates screens for data entry (Page 3 Post). Using a DBMS companies are able to store and access millions of records in a small amount of time saving them time and money. For instance if a company wishes to advertise a new product to a pre defined customer without having to spend the money and resources needed to advertise to every customer, the company could use this database to purge out unwanted customers leaving them with a list of potentials.In today's businesses databases have become an extremely important part of how the business is run and how information is kept. Because there is so much information that needs to be gathered about a business it is not possible to store all this information in just one database. This is where a database warehouse comes into play. "A database warehouse is a logical collection of information gathered from many different operational databases that supports business analysis activities and decision making tasks" (Page 100 Haag). One way of thinking of it would be of taking the databases from three or more departments and storing them in one spot, which would be the database warehouse. This enables all three departments to access anyone one of these three databases without having to look in the other two departments, saving them time and resources. They can then take the information from the other departments and make their own reports, tables, and queries.Using Structured Query Language, or SQL, companies are able to access the information in one of these databases and compare it to another. Allowing companies to come up with unique strategies for marketing, and resource into new products. Using SQL companies are able to search database's looking for certain criteria's and come up with a list of potential customers. Many...

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