I am using external stored procedures (C/C++), mostly to execute OS commands
from PL/SQL code.
Pretty straightforward (following docs), works fine. Should be accurate
mapping C-types to PL/SQL types.
Igor Neyman, OCP DBA
Perceptron, Inc.
(734)414-4627
[EMAIL PROTECTED]
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]>
Sent: Friday, June 22, 2001 6:05 AM
> Hi
>
> Would external procedures be a way of doing this if bitand didn't exist ?
> Just that there is a lot of very cool C code out there.
>
> Have RTFM, but I'm a C compiler dunce and cc turned out to stand for
> completely confused :-)
>
> Has anyone managed to use external procedures ? Is it hard to do ?
What's
> the stability ? And performance ?
>
> Cheers
> GS
>
> -----Original Message-----
> Sent: Thursday, 21 June 2001 16:01
> To: Multiple recipients of list ORACLE-L
>
>
> > why do you need to do a "bitwise or" within sqlplus?
>
> Good question... I have a really good engineer who is working with C and
> Oracle OCI. He's developing an install routine and assures me that he
needs
> bitwise operators from SQL because he can do some really powerful things
> with them. Then he said SQLServer and MySQL had them so the challenge was
> on. Turns out I was able to give him what he wanted with a little bit of
> help from something I found in a google search. There is an undocumented
> bitand function in oracle and it appears it must be called from another
> function. (Why?) You can see how this function is used in some of the data
> dictionary view creation scripts. Here's and example of bitand...
>
> SQL> select sum(bitand(12,11)) bitand from dual;
>
> BITAND
> ----------
> 8
>
> If you can get a bitand you can do a bitor...
> SQL> select sum(12+11-bitand(12,11)) bitor from dual;
>
> BITOR
> ----------
> 15
>
> The math...
> 1100 "12"
> 1011 "11"
> ==== bitand
> 1000 "8"
>
> 1100 "12"
> 1011 "11"
> ==== bitor
> 1111 "15"
>
>
> Not an alpha geek today,
> Steve Orr
>
>
> -----Original Message-----
> Sent: Thursday, June 21, 2001 7:06 AM
> To: Multiple recipients of list ORACLE-L
>
>
> but, why do you need to do a "bitwise or" within sqlplus?
> just curious.
>
> Tom Mercadante
> Oracle Certified Professional
>
>
> -----Original Message-----
> Sent: Wednesday, June 20, 2001 5:51 PM
> To: Multiple recipients of list ORACLE-L
>
> OK, for the alpha geek award of the day...
>
> Who can tell me how to do a "bitwise or" from SQLPlus -- NOT PL/SQL? Isn't
> there an internal undocumented bitand function and how could you use that
to
> implement a bitor function from SQL?
>
> Steve Orr
> --
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--
Author: Igor Neyman
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