I'm new to Oracle, and I use Toad Data Point to create and test stored procedures.
I created this simple stored procedure:
CREATE OR REPLACE PROCEDURE dummy_sp (
p_recordset OUT SYS_REFCURSOR) AS
BEGIN
OPEN p_recordset FOR
select sysdate, user from dual;
END dummy_sp ;
/
I executed this, and the result from Toad is Executed Successfully.
Now, I would like to view the results of this stored procedure. In Toad Data Point I type the following:
variable mycursor refcursor;
call dummy_sp ( :mycursor );
I get a popup asking for a parameter. I click OK and I get the error ORA-00900: invalid SQL statement.
How can I see the result of SP dummy_sp in Toad Data Point?
In SQL Server I can run exec usp_sales and see the results of a select statement. There has to be something like that in Oracle and Toad, right?
Here you go, using Toad Data Point.
Execute the stored procedure with a bind variable in it, like :mycursor, and then make sure to configure the type as CURSOR and direction as OUT when Toad Data Point prompts you for the bind variable settings.
Here's the result:
Finally, if you wish to avoid the popup for bind variables, you can execute the procedure directly from the object explorer:
Right-click the procedure and choose Operations / Execute Procedure, and Toad will run it, without prompting for data type.
In case you need a workaround while you wait for help with your tool, the default, free IDE for Oracle Database makes this pretty easy.
If you execute the program using the code editor, it will automatically grab any outputs, whether those be OUT params or RETURNs from a function, including your refcursor
Or if your GUI has proper SQLPlus script execution support (SQL Developer does, not sure about your program):
var x refcursor
exec dummy_sp(:x);
print :x;
And the output:
PL/SQL procedure successfully completed.
SYSDATE USER
------------------- --------------------------------------------------------------------------------------------------------------------------------
27-JUN-19 13.58.47 HR
Related
I want to create schema dynamically i.e. it should prompt for the input. Or how to use collections, nested table to create users from PL/SQL code blocks i.e. procedures, functions etc?
I give you a small example for that:
create or replace procedure p(p_user varchar2) is
begin
execute immediate 'create user '||p_user||' identified by x';
end;
/
begin
p('&user');
end;
/
Here the procedure gets a parameter which can be used to put together your DDL commands. The procedure must be called somehow. You can call it from sqlplus, or execute it via web server, or from a desktop app, etc. I wrote the last 4 lines as example how to call it from sqlplus. Sqlplus can prompt and read input from user.
I am working on a system where Oracle 11g is the back end database.
I have very limited permissions on the database and as such all I can do is call procedures that reside in packages.
Gerally, these procedure return their result set via an OUT parameter of type sys_refcursor.
I can call them fine in C# and get data from the cursor via the C# OracleDataset type.
Here is my question.
I want to be able to run these procedures and see the results via SQL Developer.
I can execute the procedure fine, but seeing the contents of the sys_refcursor OUT parameter is boggling me.
I've done some gooling and people ar saying about creating type and other solutions I simply do not have the permissions to persue.
So, how can I possibly see the result set contained in a sys_refcursor?
So say I have a procedure with this signature....
procedure an_oracle_Proc(p_ref IN varchar2,
p_result_set OUT sys_refcursor);
I call it like this....
DECLARE
l_ref VARCHAR2(10);
l_result_set sys_refcursor;
BEGIN
oracle_pkg.an_oracle_Proc(p_ref => l_ref,
p_result_set => l_result_set);
--How to select from l_result_set with limited permissions
END
How can I look at the contents of l_result_Set?
This is repeating the answer I linked to before really but specifically for your code:
VARIABLE result_set refcursor;
DECLARE
l_ref VARCHAR2(10);
BEGIN
l_ref := 'whatever';
oracle_pkg.an_oracle_Proc(p_ref => l_ref,
p_result_set => :result_set);
END;
/
PRINT result_set
... and run all of that as a script from an SQL Worksheet. The contents of the ref cursor will be shown in the script output window.
Thought I'd have another look and found this - amazing what stepping away from the computer can do. ;)
I just have to select the appropriate variable on the left pane.
http://www.thatjeffsmith.com/archive/2011/12/sql-developer-tip-viewing-refcursor-output/
Still - it would be nice to write my own SQL to do this rather than using the execute window.
Sys_refcursor form an anonymous block is bit tricky. Use the sql-developer, explore the package or procedure , right click and execute the procedure/package.
Sql-developer will open an input/output UI where you can key in values. And you can see the output on the same UI as well. Let me know if you need more details. I was actually debugging the same a couple of weeks back successfully.
I am using sqlplus and have a table named users from which I wish to retrieve all values with the help of a stored procedure in oracle. Here is what I am trying to do -
create or replace procedure getall(prc out sys_refcursor)
is
begin
open prc for select * from users
end;
/
When I hit return after this, I get the following error -
Warning: Procedure created with compilation errors.
Why does this happen? And how do I get the desired output? Help much appreciated!
To see the compilation errors use the show errors SQL*Plus command (which also works in SQL Developer), or query the user_errors view which works with any client. You can also query all_errors to see problems with objects that are not in your schema.
But you are just missing a semicolon after the select:
create or replace procedure getall(prc out sys_refcursor)
is
begin
open prc for select * from users;
end;
/
You'll need a bind variable to be able to see the output in SQL*Plus, e.g.:
variable rc refcursor;
exec getall(:rc);
print rc
Notice the colon before the rc in the procedure call, which shows it's a bind variable reference. And exec is a shorthand anonymous block.
You might find it simpler to have a function that returns a ref cursor, or a pipelined function; or just query the table directly of course.
I'm using SQL Oracle to build a stored procedure. I'm trying to build a stored procedure of the SQL-query below.And I want to return those data to a C# program.
select * from employee_master
I have tried following. Is this correct?
CREATE OR REPLACE PROCEDURE EMPLOYEE_SELECTALL (p_recordset OUTSYS_REFCURSOR)AS
BEGIN
OPEN p_recordset FOR
SELECT
*
FROM
EMPLOYEE_MASTER;
END EMPLOYEE_SELECTALL;
If you wish to build a stored procedure that return such resultset first of all you should check if you really need to do this. It's incidental and not recommended way for Oracle. But if you really need so, you should use REF CURSOR.
after executing your stored procedure in SQL Developer, it automatically brings back any output for you to view, including one or more ref cursors.
Example code and screenshots here
I'm trying to call an Oracle stored procedure that accepts no input parameters. However, when running the procedure, I get an error back that states
PLS-00306: wrong number or types of arguments in call to 'MY_PROC'
To call the proc, I'm just entering the following text into TOra:
BEGIN
SCHEMA.MY_PROC();
END;
I've also tried (same error though)
EXEC SCHEMA.MY_PROC();
I'm familiar with MSSQL and I'm able to execute SP with no problem using SQL server, but I can't figure out how to do the same with Oracle. I can't view the actual code for the stored procedure, but from the limited documentation I have, it appears it accepts no input parameters and the return value is a ref cursor. I have a feeling that I need to pass in a ref cursor somehow, but everything I've tried in that regard has not worked.
I just want to view the results of the SP as if I had done a SELECT statement, that is, with the records populating the data grid in the results panel in the TOra interface.
It sounds like the procedure does have an OUT parameter (in Oracle, procedures do not return anything but can have OUT and IN OUT parameters, functions return something). So you would have to pass in a variable for that OUT parameter. Something like
DECLARE
l_results SYS_REFCURSOR;
BEGIN
schema.my_proc( l_results );
END;
should successfully call the procedure. But then you want your GUI to display the results from that cursor. That, unfortunately, gets a little more complicated because now you're talking about a GUI-specific issue.
I don't use TOra, so I don't know what you need to do in TOra to get the cursor to display. In SQL*Plus (or SQL Developer, Oracle's free GUI), you could do something like
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;
This creates a stored procedure with an OUT parameter that is a cursor, declares a host variable that can be passed in, and then prints the results.