Types of elements that would make queries and tables

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When using a database, there are many different types of elements that would make queries and tables. Two elements that are important to remember composite key and composite attributes. Each of these are what identifies the content in a database. " A composite key is a combination of two or more columns in a table that can be used to uniquely identify each row in the table"(Techopedia). In order to identify a certain row you will need the keys to be chosen first. A composite attribute is made up of numerous attributes to identify an entity. For example, if you are looking up a person by their first and last name, once you go into their information, their phone number would be considered a composite attribute.

Reference no: EM132217013

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