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
define secondary key
Volcanic gases and ash are two examples of secondary pollutant
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.
What are the examples of secondary producer in pond ecosystem?Read more: What_are_the_examples_of_secondary_producer_in_pond_ecosystem
Examples of secondary memory are magnetic type,floppy disk,CD roms etc
Examples of primary fuels - wood, coal Examples of secondary fuels - charcoal, coke
Examples of secondary memory are magnetic type,floppy disk,CD roms etc
Some examples of secondary light sources in a home include:lampsrecessed lightingnight lights
Secondary Sort Key
a secondary key
secondary index is a key which is created other than primary key, to speed up processing.
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