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Like and Missing; IS-NOT and NOT

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June 03, 2008, 06:29 AM
nubi
Like and Missing; IS-NOT and NOT
Hi All,

Cna anybody tell me why when you are using MISSING you have to use IS-NOT and when you are using LIKE you have to use NOT?

NOT LIKE ''
IS-NOT MISSING

it got me confused just now because i had used IS-NOT LIKE '' thinking it would be the same as it is for MISSING but it isn't.

anyone know why? seems an odd inconsistancy...


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"Never attribute to malice that which can be adequately explained by stupidity." - Heinlein's Razor
June 03, 2008, 07:30 AM
jsn22
Hi,

IS MISSING Command is equal to IS NULL Command in Oracle.

IS-NOT MISSING is equal to IS NOT NULL Command in Oracle.

I think now you will get clear idea about the differences.

Thanks,
Senthil


WebFOCUS version 8.1.05
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June 03, 2008, 09:00 AM
Danny-SRL
Nubi,

IS is synonym for EQ
IS-NOT is synonym for NE

When using MISSING IS and IS-NOT is more readable than EQ and NE

LIKE is a different operator which can be inversed (negated) with NOT.


Daniel
In Focus since 1982
wf 8.202M/Win10/IIS/SSA - WrapApp Front End for WF

June 03, 2008, 10:41 AM
nubi
quote:
Originally posted by jsn22:
Hi,

IS MISSING Command is equal to IS NULL Command in Oracle.

IS-NOT MISSING is equal to IS NOT NULL Command in Oracle.

I think now you will get clear idea about the differences.

Thanks,
Senthil


Thanks for your reply Senhill but that wasn't what i had originally asked.

Danny,

I understand why EQ isn't used and that LIKE is a different operator but i would have thought that the same would follow for LIKE as grammatically .

WHERE FIELD IS MISSING
WHERE FIELD IS-NOT MISSING
WHERE FIELD IS LIKE
WHERE FIELD IS-NOT LIKE

are the same- if its more readable for MISSING the same must be true of LIKE- either way doesn't bother me but i expected them to be consistant. either sticking with NOT or IS-NOT for both.

what does everyone else think?


Developer Studio 7.64
Win XP
Output: mostly HTML, also Excel and PDF

"Never attribute to malice that which can be adequately explained by stupidity." - Heinlein's Razor
June 04, 2008, 04:20 AM
hammo1j
This all sounds a bit like teenager speak

LIKE IT IS-NOT. WHAT ARE U MISSING? LIKE U ARE SO NOT.

Gerry

In the same vein: Can we have 'WHATEVER' as a synonym for ELSE soon.



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June 04, 2008, 06:06 AM
nubi
Yeah, i must have the 'Valley-Girl' edition of WF Good One


Developer Studio 7.64
Win XP
Output: mostly HTML, also Excel and PDF

"Never attribute to malice that which can be adequately explained by stupidity." - Heinlein's Razor