Explicit cursors. An explicit cursor is a SELECT statement declared explicitly in the declaration section of the current block or a package specification. For an explicit cursor, you have control over its execution cycle from OPEN, FETCH, and CLOSE. Oracle defines an execution cycle that executes an SQL statement and associates a cursor with it.

Jun 28, 2024 · Explicit Cursor Example: In this example, we are going to see how to declare, open, fetch and close the explicit cursor. We will project all the employee’s name from emp table using a cursor. We will also use cursor attribute to set the loop to …

May 17, 2024 · Explicit Cursor: A Cursor can also be opened for processing data through a PL/SQL block, on demand. Such a user-defined cursor is known as an Explicit Cursor. An explicit cursor is defined in the declaration section of the PL/SQL Block. It is created on a SELECT Statement which returns more than one row. CURSOR cursor_name IS select_statement;

An explicit cursor is a named pointer to a private SQL area that stores information for processing a specific query or DML statement—typically, one that returns or affects multiple rows. You can use an explicit cursor to retrieve the rows of a result set one at a time.

There are four steps in using an Explicit Cursor. DECLARE the cursor in the declaration section. OPEN the cursor in the Execution Section. FETCH the data from cursor into PL/SQL variables or records in the Execution Section. CLOSE the cursor in the Execution Section before you end the PL/SQL Block. 1) Declaring a Cursor in the Declaration Section:

Mar 1, 2021 · In PL SQL interview questions you will asked the attributes of explicit cursor. %ISOPEN : The Boolean attributes evaluates the true if cursor is OPEN. %NOTFOUND : This Boolean attribute evaluates the true if most recent fetch does not returns results. %FOUND : The boolean attribute evaluates the true if most recent fetch returns row as result.

Jan 30, 2025 · In PL/SQL, the context area is controlled by Cursor. A cursor contains information on a select statement and the rows of data accessed by it. A cursor is used to referred to a program to fetch and process the rows returned by the SQL statement, one at a time. There are two types of cursors:

In PL/SQL, an explicit cursor is a database object that allows you to retrieve multiple rows from a query. You manage every step, from declaration to closing the cursor. This is useful when dealing with multiple rows, allowing you to fetch and process data one row at a time.

Explicit Cursor which are construct/manage by user itself call explicit cursor. User itself to declare the cursor, open cursor to reserve the memory and populate data, fetch the records from the active data set one at a time, apply logic and last close the cursor.

Oct 21, 2024 · What are Explicit Cursors in PL/SQL? An explicit cursor is a user-defined cursor for queries that return multiple rows. While in the case of an implicit cursor, PL/SQL handles the query and the result set internally, in the case of an explicit cursor, you have to process query results one by one.