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Home -> Community -> Mailing Lists -> Oracle-L -> RE: 8i pl/sql question
The first argumant (myID) is a variable that is different every time the
function gets called. The second argument is a hard code number (just as in
my orginal message). So I guess I could not use DETERMINISTIC here. I have
not heard of DETERMINISTIC before but I will take a look of this becuase it
probably can be used at a couple of places if it works as you described.
Thanks.
Guang
-----Original Message-----
John Flack
Sent: Tuesday, December 16, 2003 8:44 AM
To: Multiple recipients of list ORACLE-L
Does myFunction1 often get called with the same arguments? In your example, the second argument is never repeated, but in the real thing, would the same second argument be likely to repeat? If myFunction1 gets the same arguments, will it always return the same value? If so, then it is a deterministic function, and you can declare it as one by putting the keyword DETERMINISTIC before the IS/AS in its header. This way the optimiser will know not to recalculate the function if it is called again with the same arguments, but will reuse the value it calculated before.
-----Original Message-----
Sent: Monday, December 15, 2003 7:54 PM
To: Multiple recipients of list ORACLE-L
can you return multiple values from a modified version of myfunction(1) ?? If so, then you can replace multiple calls by only one. And no, bulk binds is only within dml/select statements.
Raj
-----Original Message-----
Sent: Monday, December 15, 2003 4:34 PM
To: Multiple recipients of list ORACLE-L
Hi:
Oracle 8173 DB.
I have a package funtion, part of it is doing something like this:
utl_file.put_line(fpn, myFunction1(myID, 1)); utl_file.put_line(fpn, myFunction1(myID, 8)); utl_file.put_line(fpn, myFunction1(myID, 6)); utl_file.put_line(fpn, myFunction1(myID, 35)); utl_file.put_line(fpn, myFunction1(myID, 33)); utl_file.put_line(fpn, myFunction1(myID, 7)); utl_file.put_line(fpn, myFunction1(myID, 102)); utl_file.put_line(fpn, myFunction1(myID, 10)); utl_file.put_line(fpn, myFunction1(myID, 9)); utl_file.put_line(fpn, myFunction1(myID, 15)); utl_file.put_line(fpn, myFunction1(myID, 2));
myFunction1 (returns a varchar2 string) here is another function in the same
package and
it calls a bunch of other functions.
Is there a way to speed up the performance of the above lines by using "bulk
bind"?
I am brain-dead now and can not seem to find if it can be done and/or how it
can be done.
TIA. Guang
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Guang Mei INET: gmei_at_incyte.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting servicesReceived on Tue Dec 16 2003 - 09:24:25 CST
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