Appeal procedure in another procedure using the Out parameter slider - lesson

Hello

I am new to Oracle development so first I wonder if it is a good place with a simple way of the of on how to create stored procedures?  I'm looking for the most part at this stage for a quick read.

Second, currently have hacked and slashed my way into getting one built.  It has 3 parameters and an output parameter sys_refcursor.  This procedure works.

I want to have another created procedure that will call the above procedure and loop through each row in the setting out and write to a file.  Can someone point me to an example of this by any chance?

Thanks for the help.

Hello

e28d78d3-c6c6-4BCE-b14f-0f6bf26fa17c wrote:

Thanks for the reply.

Here's what I have, but I'm getting many errors.  When I seem to fix one that I get a new one. Kind of like what it show me all questions vs one question at a time.  I never know if I create another error of my attempts at fixing what, in my view, could be the problem.  In any case, something to get used to.

When you do any type of programming, take baby steps.  Write less code as possible, test what you wrote ' worm and, if it contains errors, correct them and test again.

The PL/SQL compiler tries to show all errors, but often it is impossible to say what is a separate mistake, and which is a consequence of a previous error.  For example, the DECLARE statements in your code are perfectly valid PL/SQL statements, but they are the mistakes in the sense that they are not what you think, and you may not use them.  PL/SQL does not know that (I don't really know that, either, but I'm willing to guess in this case).  The works of compiler on the explanation that you really wanted to say SAID, until what it becomes obvious, maybe several lines later, that something makes no sense, but at this time, there is no way he could say that the undesirable DECLARE was the cause.

So here is where I am stuck currently.  What I want should first, run the stored procedure and I think I do as you suggest.  Which returns data in the output parameter, which is of type sys_refcursor.  I think I would need to loop through each element that cursor and output to the file using the dbms_output you reference and like I did below.  This should be it.  Sounds simple enough, but it's where some of the basics for me.

For example, by creating the procedure some examples have the name of the procedure and then some "AS", "IS".  When use the beginning and the end and when not I need?

There is no difference betwwen

CREATE PROCEDURE... AS and

CREATE PROCEDURE... Use IS the one you prefer.  You must always one or the other, however.

PL/SQL is written in blocks.  The basic structure of a block is

DECLARE - optional, sometimes involved

...

BEGIN

...

-Optional EXCEPTION; forget it for now

...

END;

Almost all of the PL/SQL code is part of a block.  In fact, you could argue that anything not in a block isn't really PL/SQL.  (For example, CREATE PROCEDURE is really an SQL, PL/SQL not, it indicates the SQL that some PL/SQL compiler is coming.)

You should always BEGIN and END keywords in a PL/SQL block; None is never optional.

I think I'm doing the for loop correctly but I get an error on the portion of loop-end.  It is a part of these simple things that become I think that.

That's what I have:

CREATE OR REPLACE PROCEDURE APPS.boact_report_3

AS

DECLARE v_cur SYS_REFCURSOR;

DECLARE v_file_out UTL_FILE.file_type;

BEGIN

I said earlier, DECLARED may be implied.  It's one of those places if there is nothing after CREATE PROCEDURE... IS and before STARTING, it is supposed to be a statement.

You can have as many statements (0, 1, 2 or more) that you want in this section of the statement.  The semicolon at the end of each of them is all the separation you need each other; you don't need any keyword as STATED.

Open the v_cur for

bo_report (p_sv_id, p_start_date, p_end_date, out v_cur);  -stored procedure that girls v_cur witch is a sys_refcursor parameter.  It works

END;

BEGIN

Don't forget, how to call a procedure is

bo_report (x, y, z);

not

bo_report (x, y, z OUT);

The key words are only necessary (and only used) in the declaration of a procedure, not in his appeal.  When you create a procedure, you decide if each argument is going to be an argument IN, an OUT argument, or IN OUT argument, and you tell the compiler that you decide.  When you call a procedure, you have no choice; each argument is IN, OUT or IN OUT has already been decided, and suffice to say compiling what are the variables (or expressions) that you use to play these predetermined roles.

Dbms_output.put_line ('Date: ');

v_file_out: =.

UTL_FILE.fopen (' / public/scripts/smorau02 ', 'w_act.csv', 'W');

FOR x IN v_cur

LOOP

() UTL_FILE.put_line

v_file_out,

x.cl_num | ','

|| x.wa_id | ','

|| x.Description | ','

|| x.a_date | ','

|| x.a_by | ','

|| x.v_Name | ','

|| x.SITE_NAME | ','

|| x.stage | ','

|| x.in_queue);

END LOOP;

UTL_FILE.fclose (v_file_out);

END;

Thanks again for the help.

You have not to send the code to bo_report, so I can't run the procedure.  I do not notice any obvious mistakes immediately superior.

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