Can we use cursor in stored procedure?

A cursor data type can also be output of a SQL Server stored procedure. The declaration of the cursor can be embedded into the body of a stored procedure. Then the cursor output from the stored procedure can be assigned just like any output of a stored procedure to the same data type.

When would you use a cursor?

Use of Cursor The major function of a cursor is to retrieve data, one row at a time, from a result set, unlike the SQL commands which operate on all the rows in the result set at one time. 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.

What is cursor explain with example?

A cursor is a temporary work area created in the system memory when a SQL statement is executed. A cursor contains information on a select statement and the rows of data accessed by it. A cursor can hold more than one row, but can process only one row at a time.

What is a cursor Oracle?

In Oracle, a cursor is a mechanism by which you can assign a name to a SELECT statement and manipulate the information within that SQL statement.

How to call Oracle stored procedure which returns REF CURSOR?

Returning REF CURSORs from PL/SQL : Functions,Procedures and Implicit Statement Results

Complex Recordsets

Dynamic SQL Enhancements in Oracle 11g

Implicit Statement Results in Oracle Database 12c Release 1 (12.1)

What is the use of cursor in Oracle?

Implicit Cursor. Whenever any DML operations occur in the database,an implicit cursor is created that holds the rows affected,in that particular operation.

Explicit Cursor. Programmers are allowed to create named context area to execute their DML operations to get more control over it.

Cursor Attributes.

FOR Loop Cursor statement.

What is REF CURSOR in Oracle?

Open SQL Developer and connect to the Oracle Database.

Then left side in Connections pane,expand the schema node in which you want to execute the stored procedure.

Then expand the Procedures node and select the stored procedure you want to execute and do the right click on it.

Why cursor is used in PL SQL?

Declare Cursor: A cursor is declared by defining the SQL statement that returns a result set.

Open: A Cursor is opened and populated by executing the SQL statement defined by the cursor.

Fetch: When the cursor is opened,rows can be fetched from the cursor one by one or in a block to perform data manipulation.