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SUBSTRING command

 
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Al Vas
Guest
PostPosted: Fri Oct 24, 2003 6:34 am    Post subject: SUBSTRING command Reply with quote


Hi,
I want to create an SQL calculated field that does the following:

(SUBSTRING(Code FROM 1 FOR 3) = 'SUP')

In other words I am assigning it as a Boolean type, True or False, but I am
getting an error token '=' is not valid. Is this not allowed in LocalSQL,
and if not is there a way to do this calculation?

Thanks

Alex


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Richard Biffl
Guest
PostPosted: Fri Oct 24, 2003 7:03 am    Post subject: Re: SUBSTRING command Reply with quote


That should work in LocalSQL. Are you using an old version of the BDE? Use
5.11 or later.

Richard

"Al Vas" <alex (AT) au (DOT) com.favour> wrote

Quote:
I want to create an SQL calculated field that does the following:

(SUBSTRING(Code FROM 1 FOR 3) = 'SUP')

In other words I am assigning it as a Boolean type, True or False, but I
am
getting an error token '=' is not valid. Is this not allowed in LocalSQL,
and if not is there a way to do this calculation?



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mkm
Guest
PostPosted: Sat Oct 25, 2003 7:58 pm    Post subject: Re: SUBSTRING command Reply with quote


It's not allowed in LocalSQL.
Try this:

SELECT
CAST('true' AS BOOLEAN)
FROM
"table.db"
WHERE
(SUBSTRING(Code FROM 1 FOR 3) = 'SUP')

UNION ALL

SELECT
CAST('false' AS BOOLEAN)
FROM
"table.db"
WHERE
(SUBSTRING(Code FROM 1 FOR 3) = 'SUP')


"Al Vas" <alex (AT) au (DOT) com.favour> wrote

Quote:
Hi,
I want to create an SQL calculated field that does the following:

(SUBSTRING(Code FROM 1 FOR 3) = 'SUP')

In other words I am assigning it as a Boolean type, True or False, but I
am
getting an error token '=' is not valid. Is this not allowed in LocalSQL,
and if not is there a way to do this calculation?

Thanks

Alex





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