Re: PL/SQL and SQL Navigator

Hi Thomas,

it is perfect to see you here!
Unfortunately the job has nothing to do with CA-VO.

In this stage it seems to pure Oracle and perhaps some Java code will be added later. It is new experience for me - I have some knowledge of MS SQL and T-SQL scripting. I am only learning the PL/SQL (so this is another forum where I can proof my stupidity <g>).

Thank you for your code - it is the one I can read and I guess I will use it.

Pavel

> Pavel
> Try this:
>
> CREATE OR REPLACE FUNCTION FindTable( cTable VARCHAR2 ) RETURN NUMBER AS
> nRtn NUMBER;
> CURSOR curTab IS SELECT 1 FROM USER_TABLES WHERE TABLE_NAME = cTable;
> recTab curTab%ROWTYPE;
>
> BEGIN
> OPEN curTab;
> FETCH curTab INTO recTab;
> IF curTab%NOTFOUND THEN
> nRtn := 0;
> ELSE
> nRtn := 1;
> END IF;
> CLOSE curTab;
> RETURN nRtn;
> END;
>
> Pl/SQL is more like real programming language than T-SQL script :
> You declare and use variables and cursors , you can crate new types (even
> classes and objects)
> Use your CA-VO knowledge and you will like Pl/SQL as much.
> Just remember to add ';'...
> Happy VOing with Oracle.
> HTH
> Thomas Olszewicki
>
>
>
>
> "Pavel Vetesnik" <Pavel.Vet_at_volny.cz> wrote in message
> news:3657dfa4.0207290218.c11c33b_at_posting.google.com...
> > Hello,
> >
> > as you see, I am still beginner in using Oracle (ver 8.1.7.) and the
> > SQL Navigator.
> > I can run SQL commands in the Navigator without troubles. But as I
> > found, I can't run the PL/SQL commands.
> > For example I wanted to see, if a table exists. So I wrote this
> > construction:
> > ======================
> > if exists (select 1 from user_tables where table_name='C_POLOZ') then
> > begin
> > select 1 from dual;
> > else
> > select 2 from dual;
> > end if;
> > ======================
> > But I got ORA00900: Invalid SQL command
> >
> > As I learned, I may need to install a "procedural option". And I also
> > learned (in
> http://groups.google.com/groups?hl=cs&lr=&ie=UTF-8&oe=UTF-8&selm=36162906.49
> 3E9E01%40websoft.com.au)
> > that this option can be installed running catproc.sql script.
> >
> > Frankly - I am quite afraid of running this, because it must be run
> > with administrator's privileges and I don't know if it will not hurt
> > our existing code.
> > So my questions:
> > (1) Is installing "procedural option" (catproc.sql) safe?
> > (2) Will this really help me in running PL/SQL commands in SQL
> > Navigator (SQL Editor Window).
> > (3) Should I use another tool to write Pl/SQL scripts?
> >
> > Thank you in advance!
> > Pavel
Received on Fri Aug 02 2002 - 10:31:08 CEST