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

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

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.

How do I pass a value from one cursor to another cursor in Oracle PL SQL?

1 Answer. It is possible to reference another cursor within the first one: declare cursor c1 is select distinct Assigned from table_name; cursor c2(p_Assigned in varchar2) is select id, Assigned from table_name where Assigned = p_Assigned; begin for r1 in c1 loop dbms_output.

Is ref cursor Plsql?

A REF CURSOR is a PL/SQL data type.

How do I execute a stored procedure with ref cursor in SQL Developer?

6 Answers. create or replace procedure my_proc( p_rc OUT SYS_REFCURSOR ) as begin open p_rc for select 1 col1 from dual; end; / variable rc refcursor; exec my_proc( :rc ); print rc; will work in SQL*Plus or SQL Developer.

What is the difference between ref cursor and Sys_refcursor in Oracle?

There is no difference between using a type declared as REF CURSOR and using SYS_REFCURSOR , because SYS_REFCURSOR is defined in the STANDARD package as a REF CURSOR in the same way that we declared the type ref_cursor . type sys_refcursor is ref cursor; SYS_REFCURSOR was introduced in Oracle 9i.

Can we call cursor inside cursor?

The trick to declaring a cursor within a cursor is that you need to continue to open and close the second cursor each time a new record is retrieved from the first cursor. That way, the second cursor will use the new variable values from the first cursor.

What is difference between cursor and ref cursor?

A cursor is really any SQL statement that runs DML (select, insert, update, delete) on your database. A ref cursor is a pointer to a result set. This is normally used to open a query on the database server, then leave it up to the client to fetch the result it needs.

Is it better to return an array with a REF CURSOR?

Yes, it is better (to return the ref cursor). If I was to return an array — i would have to fetch all of the rows on the PLSQL side. With a ref cursor — the client gets to get at the data right away (don’t have to fetch the last row before they see the first row).

Can a PLSQL table be used as a REF CURSOR?

So, I am recommending you use a SQL type — not a plsql table type (they work very much the same with the notable exception that the SQL Nested table demands you use .EXTEND to allocate space whereas the plsql table type just “makes room” as needed. By using the SQL Type, you can select from the table easily. Your ref cursor example would be:

How is a cursor variable declared in PL / SQL?

With a cursor variable, you simply pass the reference to that cursor. To declare a cursor variable, you use the REF CURSOR is the data type. PL/SQL has two forms of REF CURSOR typeS: strong typed and weak typed REF CURSOR.

How to fetch from a REF CURSOR that is returned from a stored procedure?

How can I fetch from a ref cursor that is returned from a stored procedure (OUT variable) and print the resulting rows to STDOUT in SQL*PLUS?