I don't think there is any question.
A smart select statement always tends to be a better solution.
The one instance where I'd definitly prefer a procedure over a select is
when the select contains Oracle's tree-walk method (i.e. connect by prior...
start with)
Regards
JL
-----Original Message-----
Sent: Tuesday, February 20, 2001 12:31 PM
To: Multiple recipients of list ORACLE-L
Hi Gurus !
I'm going to some tables with huge amount of records. There are references
between these tables. The
question is:
Does it worth creating a procedure with several small selects or is it
faster to use one select with
joins?
For example:
CUSTOMER(CUST_ID);
CONTRACT(CONTR_ID,CUST_ID);
CONTRACT_ITEM(CONTR_I_ID,CONTR_ID,PHONE_NUM_ID);
PHONE_NUMBER(PHONE_NUM_ID,PHONE_NUM);
I have the PHONE_NUM and I need the CUST_ID.
Which Faster?
SELECT CUST_ID from PHONE_NUM,CONTRACT_ITEM,CONTRACT,CUSTOMER where ....
[JOINS] and
PHONE_NUM=searchedone
or In procedure or function
select phone_num_id into Variable from phone where phone_num=searchedone;
select contract_id into Variable2 from contract_item where
phone_num_id=Variable;
select cust_id into Variable from contract where contr_id=Variable2;
Thanks in advance.
Gyula
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