How do I run a ref cursor in Oracle?

Here is the generalized syntax for declaring Ref cursors in Oracle Database: DECLARE TYPE [cursor_variable_name] IS REF CURSOR [RETURN (return_type)]; Syntax can be modified and used depending on what type of Ref Cursors you want to use in your application.

What is static and dynamic cursor in Oracle?

A static cursor supports both Relative and Absolute Positioning whereas a Dynamic Cursor supports only Relative Positioning. •A Static Cursor can be used for Bookmarking purposes as the data returned is static whereas a Dynamic Cursor can’t be used for the same.

What is no copy in Oracle?

The NOCOPY hint tells the PL/SQL compiler to pass OUT and IN OUT parameters by reference, rather than by value.

Can we pass cursor as parameter?

No, you can’t pass a static cursor as a parameter.

Can we use commit in trigger?

You can’t commit inside a trigger anyway. Show activity on this post. Trigger should not commit and cannot commit. Committing in a trigger usually raises an exception unless it happens into autonomous transaction.

What is static cursor in Oracle?

A static cursor is a cursor whose associated query is fixed at compile time. Declaring a cursor is a prerequisite to using it. Declarations of static cursors using PL/SQL syntax within PL/SQL contexts are supported by the data server.

How to use REF CURSOR example?

Given that block of code – you see perhaps the most “salient” difference – no matter how many times you run that block – cursor C will always be select

Another difference is a ref cursor can be returned to a client.

Another difference is a cursor can be global – a ref cursor cannot (you cannot define them OUTSIDE of a procedure/function).

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)

How to execute dynamic SQL into cursor in Oracle?

EXECUTE IMMEDIATE Statement. The EXECUTE IMMEDIATE statement is the means by which native dynamic SQL processes most dynamic SQL statements.

OPEN FOR,FETCH,and CLOSE Statements. Use an OPEN FOR statement to associate a cursor variable with the dynamic SQL statement.

Repeated Placeholder Names in Dynamic SQL Statements.

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.