Ref kurzor v oracle ako out parameter

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.

Ref Cursor can be passed/returned to another PL/SQL routine (function or procedure) or even can be returned to client from the Oracle Database Server. Ref Cursors can be further categorized in 2 parts 1) Strongly Typed Ref Cursor 2) Weakly Typed Ref Cursor When a return type is included while defining Ref Cursor it called Strongly Typed Ref Cursor. Structure of Strongly Typed Ref Cursor is known at the … 5/1/2013 SQL> CREATE OR REPLACE PROCEDURE 2 FETCH_EMPLOYEES_NAMES(V_DeptNo NUMBER, V_REF OUT SYS_REFCURSOR ) 3 /*Note: SYS_REFCURSOR as parameter type used here because it has been declared in standard package it is a ref cursor */ 4 IS 5 Begin 6 OPEN V_REF For Select FIRST_NAME, LAST_NAME From EMP_TEST where DEPTNO = V_DeptNo; 7 End FETCH_EMPLOYEES_NAMES; 8 / … 8/6/2015 Oracle SQL PLSQL and Unix Shell Scripting About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features © 2020 Google LLC 3/5/2007 5/5/2008 8/4/2020 5/27/2013 IN OUT REF CURSOR parameters are split into an IN and an OUT parameter. The IN parameter is appended with "_IN" in the method signature to distinguish it from the OUT parameter. The OUT parameter is represented by a strongly-typed record set.

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The second parameter is the maximum number of elements that the array can hold or an array providing the value (and indirectly the maximum length). The final parameter is optional and only used for strings and bytes. 11/25/2011 10/5/2011 5/5/2016 3- The REF CURSOR parameter must be defined as IN OUT (read/write mode). 4- Parameters can only be input (IN) parameters.

RE: OPEN_CURSORS ! From: "Juan Carlos Reyes Pacheco" ; To: ; Date: Wed, 14 Jul 2004 17:14:39 -0400; Hi based on my few understanding a cursor is a query, not what you get from it. I hope not to bore you but here is something I investigate about this parameter sometime ago and will be in my next paper, I need to check once again.

DECLARE TYPE customer_t IS REF CURSOR … which has REF CURSOR as the IN OUT parameter. The Java programmer wants this REF CURSOR declared just as a OUT parameter and not as IN OUT parameter.

Before the call you need to provide for every parameter: a call to set its input value; a call to register it as an output parameter; after the call you can retrieve the output parameters one by one; Multiple in and out parameters. The following example has 4 input parameters and 4 output parameters: Ref Cursor. The following plsql block

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. See full list on oracle-base.com PL/SQL Ref Cursors examples.

Then fetch each row in the cursor and show the product’s information, and close the cursor. Jul 25, 2020 · The SYS_REFCURSOR is a predefined weak ref cursor type supplied by Oracle9i and higher. On the other hand, you can also pass entire collections as parameters, but that’s a different issue, you don’t FETCH from collections, but process their data and/or populate them, as needed. 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.

5- The REF CURSOR variable must be opened and assigned its query within the procedure. 6- … The REF CURSOR type works similarly to the out and inout parameters. You set the value of the REF CURSOR as an exchange property. To use Oracle REF CURSORs with the SQL module: Map the cursorResultMap to the java.util.HashMap class in your SQL mapper file with the element. Add a second argument to the stored procedure call that PL/SQL REF CURSORs. For additional information see "PL/SQL Data Types" in Oracle Database PL/SQL Language Reference.

A ref cursor is a variable, defined as a cursor type, which will point to, or reference a cursor result. The advantage that a ref cursor has over a plain cursor is that is can be passed as a variable to a procedure or a function. The REF CURSOR can be assigned to other REF CURSOR variables. Aug 01, 2016 · REF CURSOR isn't a type in itself. To pass these, you can either: - Use the predefined sys_refcursor type - Define your own type of REF CURSOR For example, the following defined the parameter as a sys_refcursor. If you want to access the values in SQL*Plus / SQL Dev, pass a refcursor variable: With previous releases of ODP.NET, you could retrieve data from a ref cursor but you could not pass a ref cursor as an input parameter to a PL/SQL stored procedure or function. But with ODP.NET 10 g Release 2, you are now able to easily pass a ref cursor as an input parameter in Oracle Database 10 g Release 2.

stored procedure with scalar type - NUMBER, VARCHAR 2. stored procedure with REF CURSOR or SYS_REFCURSOR. What is difference between REF CURSOR and SYS_REFCURSOR? Execute/Test stored procedure with primitive type:- In the past few weeks I have answered 4-5 questions related to "Passing Parameters to Cursor". So I thought that it is a nice time to write a post on "Parameterized Cursors in Oracle". Yes, Oracle does support Parameters with Cursors, like it does in case of function or procedure.

I have done some research on Google about using REF CURSORS and its efficiency but I am not quite sure if the ref cursor approach provides a better performance on forms. A REF CURSOR data type can be obtained as an OracleDataReader object by calling the ExecuteReader method of the OracleCommand object.

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CREATE OR REPLACE PACKAGE test_package IS . This discussion is archived. 3 Replies

REF CURSOR isn't a type in itself. To pass these, you can either: - Use the predefined sys_refcursor type - Define your own type of REF CURSOR For example, the following defined the parameter as a sys_refcursor. If you want to access the values in SQL*Plus / SQL Dev, pass a refcursor variable: With previous releases of ODP.NET, you could retrieve data from a ref cursor but you could not pass a ref cursor as an input parameter to a PL/SQL stored procedure or function. But with ODP.NET 10 g Release 2, you are now able to easily pass a ref cursor as an input parameter in Oracle Database 10 g Release 2. 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. In essence, a REF CURSOR is a pointer or a handle to a result set on the database.