Question

list an example of where a query might be used​

Answer 1

Answer:

A query is a request for data results, and for action on data. You can use a query to answer a simple question, to perform calculations, to combine data from different tables, or even to add, change, or delete table data.

Explanation:

When would you use query by example?

Query by example is a query language used in relational databases that allows users to search for information in tables and fields by providing a simple user interface where the user will be able to input an example of the data that he or she wants to access.

For example, an human resources manager may perform a query on an employee database that selects all employees in a specific department that were hired between 11 and 12 months ago. The results might be used to provide the department head with current candidates for an annual review.

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