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An attribute or set of attributes that is basis for retrieval is known as secondary key
for example, address in student table can be used to display all students who are living in a particular city. in this case, address will be used as secondary key
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What is secondary key?
define secondary key
What does key ideas mean?
The main ideas or themes. Imagine the subject is a tree. The key ideas is the trunk. The secondary ideas or themes would be the branches that come off the key ideas. All of those secondary ideas originally come from the key ideas.
List two examples of secondary pollutant?
Volcanic gases and ash are two examples of secondary pollutant
What is the difference between a Primary Key and a Secondary Key?
A Primary Key is a unique identifier for each record in a database table and is used to enforce entity integrity. A Secondary Key is a non-unique index that is used for querying and organizing data efficiently but does not have the constraint of uniqueness.
What is a secondary key in relational databases?
A secondary key is a field that is identified as being suitable for indexing the data such as a surname, It is used to sort the data in a different order to the primary key, A table can have many secondary keys in fact every field could be a secondary key. Hope this helps !
What are examples of secondary memory?
Examples of secondary memory are magnetic type,floppy disk,CD roms etc
What are the examples of secondary producer in pond ecosystem?
What are the examples of secondary producer in pond ecosystem?Read more: What_are_the_examples_of_secondary_producer_in_pond_ecosystem
Give two examples each of primary and secondary fuels?
Examples of primary fuels - wood, coal Examples of secondary fuels - charcoal, coke
What are examples of secondary light sources in a home?
Some examples of secondary light sources in a home include:lampsrecessed lightingnight lights
What are some examples of secondary memory?
Examples of secondary memory are magnetic type,floppy disk,CD roms etc
What is stored as primary key in a second table?
a secondary key
Another term for minor key?
Secondary Sort Key
