Accurate? As noted in the text for this site, it is questions asked by regular people and answered by regular people. Some people know what they are talking about, others don't. I wouldn't use this as the only reference source for my questions but I think generally it is good. I like the format and the idea.
ranges of database
Database is defines as a collection related records/data. When the data in the database is grouped based on some classification it is called database clustering.
Relational Database Model
Database file is one that is stored on a server and it is in the format that the database needs to read it. It is also stored in the database catalog. A flat file is one that is dumped from a database to import or export into another database or program. A flat file is fields of data separated by delimiters, which keep the fields separated for export/import.
a) Identify and describe FIVE characteristics of an efficient database
data integrity
data integrity
Explain why is it essential that banks ensure that their customer database is accurate and up to date if they want to sell more products.?
A commonly used program for creating databases is Microsoft Access.
Data is all of the information that is stored in a database (a file that stores records), it remains to be data unless it is published or verified as accurate and useful.
To ensure accurate data, validation rules can be applied to fields.
Nexis is certainly an accurate source of information. The database is home to thousands of peer reviewed journal and research articles. It's used by hundreds of researchers everyday.
The duties of a database administor can vary from company to company but your main goal will be to maintain the company's database. This will include updating customer information such as addresses and phone numbers. You will have to keep a current database of information. These databases may be for customer information, or they may be used for marketing purposes such as mass mailings of advertisements. You have to keep the database current so you the company has accurate records when they contact the customers for advertising purposes. The database may be for customers who may have already purchased something and the company may want to keep them abreast of any sales or new products. You can excel in this field by keeping accurate records and doing a very good, detailed job.
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a set of principles concerned with determining which states are valid for a database.Data Integrity within a relational database is that property of a database which ensures that it is and remains an accurate reflection the universe of discourse that it is attempting to model. This includes rules and restrictions to ensure the recording of correct data. It also involves the protection of data within the database. These rules are called integrity constrains.These restrictions are used in almost every field of input to the database.Examples of this is where you are given a drop box on a form to select from a list. This eliminates the chance of multiple spelling of a word. eg. colour color
Benefits of database management system?some of the benefits of dbms: reduced operative expenses quick and accurate decisions based