Re: Celko: help with an experiment

DB6 V6.1 accessed via SPUFI on OS/390 2.8 (mvs)
>
> 1) SELECT * FROM Foobar;
>
> [ ] 0
> [x] 1
> [ ] 99

...

> 2) SELECT MAX(i) FROM Foobar;
>
> [ ] 0
> [x] 1

...

> 3) SELECT * FROM Foobar WHERE 1 = 0;
>
> [ ] 0
> [ ] 1
> [ ] 99
> [ ] NULL
> [x] Empty set
> [ ] Warning
> [ ] Fatal error
> [ ] Other
>
> 4) SELECT MAX(i) FROM Foobar WHERE 1 = 0;
>
> [ ] 0
> [ ] 1
> [ ] 99
> [x] NULL
> [ ] Empty set
> [ ] Warning
> [ ] Fatal error
> [ ] Other
>
> 5) SELECT CASE WHEN 1 = 1
> THEN 99
> ELSE COUNT(*) END AS x
> FROM Foobar
> WHERE 1 = 0;
>
> [ ] 0
> [ ] 1
> [x] 99
> [ ] NULL
> [ ] Empty set
> [ ] Warning
> [ ] Fatal error
> [ ] Other
>
> 6) SELECT CASE WHEN 1 = 0
> THEN 99
> ELSE COUNT(*) END AS x
> FROM Foobar
> WHERE 1 = 0;
>
> [x] 0
> [ ] 1
> [ ] 99
> [ ] NULL
> [ ] Empty set
> [ ] Warning
> [ ] Fatal error
> [ ] Other
>
> --CELKO--
Received on Tue Jul 09 2002 - 18:17:59 CEST