hich statement correctly describes a secondary key?*1 pointAny key except the primary key used in accessing a tuple in a tableA key in a table that is duplicated to identify a tuple in another table.more than one field or combination of fields that can be used as a primary keya key that is a primary key in a different table
Question
hich statement correctly describes a secondary key?*1 pointAny key except the primary key used in accessing a tuple in a tableA key in a table that is duplicated to identify a tuple in another table.more than one field or combination of fields that can be used as a primary keya key that is a primary key in a different table
Solution
A secondary key is any key except the primary key used in accessing a tuple in a table. It is used to access data in a different way than the primary key allows. It can be a single attribute or a combination of attributes. However, unlike the primary key, the secondary key may not have a unique value for each record (tuple) in the table.
Similar Questions
A composite key is used when _____________*1 pointmore than one key is needed to identify a recordit is difficult to identify a primary keymore than two keys are needed to identify a recordit is difficult to identify a secondary key
Explain the following terms as used in database implementation. [3 Marks]a. Primary keyb. Columnc. Row
What is the term for the candidate key other than the primary key in a relational database table
What is the primary key used for in a relational database?Select one:a. To link tables togetherb. To perform data aggregationc. To enforce referential integrityd. To uniquely identify each record in a table
The term used to describe an attribute that can function like a primary key is a*1 pointCandidate keySecondary keyForeign keyComposite key
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.