Re: [PATCHES] prepareable statements

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От Marc Lavergne
Тема Re: [PATCHES] prepareable statements
Дата
Msg-id 3D3E43C5.3020609@richlava.com
обсуждение исходный текст
Ответ на Re: [PATCHES] prepareable statements  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
To expand on the Oracle implementation, the EXECUTE command in SQL*Plus 
results in an anonymous pl/sql block (as opposed to a named procedure). 
being sent over the wire such as the following:

begin
my_procedure();
end;

As mentioned in the previous post, the EXECUTE command is only a 
SQL*Plus keyword (well, Server Manager too but that was killed in 9i).

Mike Mascari wrote:
> Rod Taylor wrote:
> 
>>On Tue, 2002-07-23 at 11:34, Tom Lane wrote:
>>
>>>nconway@klamath.dyndns.org (Neil Conway) writes:
>>>
>>>>Regarding the syntax for EXECUTE, it occurs to me that it could be made
>>>>to be more similar to the PREPARE syntax -- i.e.
>>>
>>>>PREPARE foo(text, int) AS ...;
>>>
>>>>EXECUTE foo('a', 1);
>>>
>>>>(rather than EXECUTE USING -- the effect being that prepared statements
>>>>now look more like function calls on a syntactical level, which I think
>>>>is okay.)
>>>
>>>Hmm, maybe *too* much like a function call.  Is there any risk of a
>>>conflict with syntax that we might want to use to invoke stored
>>>procedures?  If not, this is fine with me.
>>
>>Stored procedures would use PERFORM would they not?
>>
>>I like the function syntax.  It looks and acts like a temporary 'sql'
>>function.
> 
> 
> FWIW, Oracle uses EXECUTE to execute stored procedures. It is not apart
> of the SQL language, but a SQL*Plus command:
> 
> EXECUTE my_procedure();
> 
> The Oracle call interface defines a function to call stored procedures:
> 
> OCIStmtExecute();
> 
> Likewise, the privilege necessary to execute a stored procedure is
> 'EXECUTE' as in:
> 
> GRANT EXECUTE ON my_procedure TO mascarm;
> 
> Again, FWIW.
> 
> Mike Mascari
> mascarm@mascari.com
> 
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