What is data retrieval and explain its command?

Question

Data retrieval means obtaining data from a Database Management System (DBMS) such as ODBMS. In this case, it is considered that data is represented in a structured way, and there is no ambiguity in data. In order to retrieve the desired data the user present a set of criteria by a query.

What is data retrieval process?

In databases, data retrieval is the process of identifying and extracting data from a database, based on a query provided by the user or application. It enables the fetching of data from a database in order to display it on a monitor and/or use within an application.

Which command is used to retrieve data from database?

SQL SELECT command is used to retrieve data from a database.

What is data retrieval Class 11?

(C) Data Retrieval : It involves fetching data from the storage devices, for its processing as per the user requirement. Minimising data access time is crucial for faster data processing.

What is data retrieval in GIS?

Data retrieval involves the capability to easily select data for graphic or attribute editing, updating, querying, analysis and/or display. ... Most GIS software also provides a programming subroutine library, or macro language, so the user can write their own specific data retrieval routines if required.

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