Re[2]: [GENERAL] COALESCE() or NVL()

1998-07-10 Thread Sferacarta Software
Hello Robin, giovedì, 18 giugno 98, you wrote: RT> At 12:03 PM 6/17/98 +, Jose' Soares Da Silva wrote: >>> Jose' Soares Da Silva writes: >>> > SELECT name,NVL(salary)+100 AS dream FROM emp; >>> > name |dream >>> > ---+- >>> > Sam| 1300 >>> > Claire | 5100 >

Re: [GENERAL] COALESCE() or NVL()

1998-06-18 Thread Robin Thomas
At 12:03 PM 6/17/98 +, Jose' Soares Da Silva wrote: >> Jose' Soares Da Silva writes: >> > SELECT name,NVL(salary)+100 AS dream FROM emp; >> > name |dream >> > ---+- >> > Sam| 1300 >> > Claire | 5100 >> > Bill | 4300 >> > Ginger | 4900 >> > NULL V

Re: [GENERAL] COALESCE() or NVL()

1998-06-12 Thread rmcm
I got sum(money attribute) to return 0.00 instead of NULL when there are zero tuples in class, by redefining the sum() aggregate to set initcond1 to 0.00. Perhaps you do something similar with your AVL(). -- Replace existing sum(money) to return $0.00 -- for zero instances drop a

[GENERAL] COALESCE() or NVL()

1998-06-12 Thread Jose' Soares Da Silva
Hi all, I'm looking for a function like COALESCE() or the Oracle NVL(), to returns a ZERO value instead of a NULL value. To have the result: NULL+1 = 1 instead of NULL+1 = NULL Have PostgreSQL something like this ? I tried to write it on C but I can't realize the beavior of NULLs, I can't get tha