Can we use cursor in package?

Can we use cursor in package?

After writing the package, you can develop applications that reference its types, call its subprograms, use its cursor, and raise its exception. When you create the package, it is stored in an Oracle database for use by any application that has execute privilege on the package.

Which is used to refer CURSORs in different package?

The specification is the interface to the package. It just DECLARES the types, variables, constants, exceptions, cursors, and subprograms that can be referenced from outside the package. In other words, it contains all information about the content of the package, but excludes the code for the subprograms.

How do I display ref cursor output in PL SQL Developer?

Using the PRINT command in a SQL Worksheet Using the classic SQL*PLUS PRINT command to view the refcursor output will work in SQL Developer just like it would work in your command line tools. You execute your program, you create a local variable or 3 to ‘catch’ said output, and then you PRINT it.

Is it possible to open cursor which is in package in another procedure in Oracle?

Sure it’s possible (although your attempt won’t work) – you’d just be passing around the string containing the select statement you want to use to open your ref cursor – but it’s not the best design.

What is package cursor in Oracle?

A Package that returns a Cursor type is a package cursor. Eg: Create or replace package pkg_Util is.

Can you alter procedure with in package?

Because all objects in a package are stored as a unit, the ALTER PACKAGE statement recompiles all package objects. You cannot use the ALTER PROCEDURE statement or ALTER FUNCTION statement to recompile individually a procedure or function that is part of a package.

Why ref cursor is used in PL SQL?

Using REF CURSOR s is one of the most powerful, flexible, and scalable ways to return query results from an Oracle Database to a client application. A REF CURSOR is a PL/SQL data type whose value is the memory address of a query work area on the database.

What is use of ref cursor in Oracle?

A REF CURSOR is a PL/SQL data type whose value is the memory address of a query work area on the database. In essence, a REF CURSOR is a pointer or a handle to a result set on the database. REF CURSOR s are represented through the OracleRefCursor ODP.NET class.

When should we use ref cursor in Oracle?

What are ref cursors in Oracle Database?

Using REF CURSORs is one of the most powerful, flexible, and scalable ways to return query results from an Oracle Database to a client application. A REF CURSOR is a PL/SQL data type whose value is the memory address of a query work area on the database.

What is SYS_REFCURSOR type in Oracle 9i?

Oracle 9i introduced the predefined SYS_REFCURSOR type, meaning we no longer have to define our own REF CURSOR types. Related articles. The example below uses a ref cursor to return a subset of the records in the EMP table. The following procedure opens a query using a SYS_REFCURSOR output parameter.

How do you return a cursor from a stored procedure?

Oracle REF CURSOR With the REF_CURSOR you can return a recordset/cursor from a stored procedure. There are 2 basic types: Strong ref cursor and weak ref cursor For the strong ref cursor the returning columns with datatype and length need to be known at compile time.

Is a REF CURSOR backward scrollable?

A REF CURSOR is not backward scrollable. The data represented by the REF CURSOR is accessed in a forward-only, serial manner. You cannot position a record pointer inside the REF CURSOR to point to random records in the result set. A REF CURSOR is a PL/SQL data type. You create and return a REF CURSOR inside a PL/SQL code block.