What is data retrieval process?

Question

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.

What is meaning of data retrieval?

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 are the data retrieval methods?

17.5.(1) Retrieval without using an index.(2) Retrieval using one index.(3) SELECT-APSL.(4) Retrieval using a multicolumn index.(5) Retrieval of work tables.(6) Retrieval using row identifier.(7) Retrieval of the result of queries to foreign servers.Types of retrieval methods

What happens during a data retrieval?

Data recovery is the process of restoring data that has been lost, accidentally deleted, corrupted or made inaccessible. In enterprise IT, data recovery typically refers to the restoration of data to a desktop, laptop, server or external storage system from a backup.

What is data retrieval and explain its command?

DRL/DSL stands for Data Retrieval Language/Data Selection Language. It is a set commands which are used to retrieve data from database server. It manipulates the data in database for display purpose like aggregate function. In DRL/DSL, for accessing the data it uses the DML command that is SELECT.

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