PL/SQL create a procedure to update problem (university exercise)

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Hello.

I need to create a stored procedure that allows to change the name of a teacher
based on their code.

This procedure should return a value of 1 on sucess and the value 0 otherwise.

I did this:

create or replace procedure ChangeName(codeT in number, name in varchar2)
as
begin
update teacher set teachername = name where codeteacher = codeT;
end;

And it works fine..but i need also to :"

SQL

return a value of 1 on sucess  and the value 0 otherwise.

"

Someone can help me to do this part?
Thank you very much for attention!

Posted 10-Jun-13 7:41am

mibetty

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**Zoltán Zörgő** · Accepted Answer · 2013-06-10T09:27:00

Solution 1

What about this:

SQL

create or replace procedure ChangeName
( codeT IN number
, name IN varchar2
, success OUT number
)
as
begin
update teacher set teachername = name where codeteacher = codeT;
if sql%rowcount = 1 then
    success := 1;
else
    success := 0;
end if;
end;

Posted 10-Jun-13 9:27am

Zoltán Zörgő

Comments

mibetty 10-Jun-13 16:30pm

thank you very much.
probably is that..but i wanted to test.
usually to test i execute the procedures in sqlPlus (because i dont know execute in oracle) like this: execute procedurename (parameter1, parameter2).
But now im doing this execute changename(1,'John',sucess) and i got a error saying that sucess must be declared..do you know how i can execute the procedure with right parameters?

Zoltán Zörgő 11-Jun-13 3:42am

Since there is an out parameter, you need a variable to store the result.
Check this: http://psoug.org/definition/OUT.htm