Asked by: Celinia Maeztutechnology and computing databases
What happens when rows are found using fetch statement?
Last Updated: 26th March, 2021
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People also ask, what is the purpose of fetch statement?
FETCH Statement. The FETCH statement retrieves rows of data from the result set of a multiple-row query—one row at a time, several rows at a time, or all rows at once—and stores the data in variables, records, or collections.
One may also ask, what is fetch in PL SQL? Term: FETCH The Oracle FETCH statement is one of the stages of using an Oracle cursor. The FETCH statement retrieves rows of data from the result set of a multi-row query and places them into an area in Oracle memory. Reads the data for the current row in the result set into the output PL/SQL variables.
Thereof, what does fetching a cursor do?
The purpose of using a cursor, in most cases, is to retrieve the rows from your cursor so that some type of operation can be performed on the data. After declaring and opening your cursor, the next step is to use the FETCH statement to fetch rows from your cursor.
How does a cursor work in Oracle?
Cursors are used when the user needs to update records in a singleton fashion or in a row by row manner, in a database table. The Data that is stored in the Cursor is called the Active Data Set. Oracle DBMS has another predefined area in the main memory Set, within which the cursors are opened.