When there is a large set of data and you want to retrieve a small set of data. What is the concept called
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Querying a database is the concept used for retrieving small set of data from large databases.
Explanation:
- A query can be defined as an action which is used for retrieving data from the database. In this, we have to be selective on how much data we wanted to retrieve.
- If the database consists of large amount of data and we have to retrieve particular set of data, then we have to write a query that fits the criteria.
- We can query a database using two ways namely 1) through programming, 2) through user interface.
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