On Sat, 25 Jun 2011 19:42:11 +0200, Cecil Westerhof
<cldwester...@gmail.com> wrote:
>Thanks for the answers. I had thought about both options, but was wondering
>if I had missed something better. I original opted for the LIMIT/OFFSET
>option (because the order is important), but after following the link I
>found that this will be an ineffective way in the long run. That is way I
>choose the DESC way in combination with tac. (I am using a bash script.):
You're welcome.
> selectStr="
> SELECT categories.desc
> , weights.measureDate
> , weights.weight
> , weights.fat
> , weights.water
> , weights.muscle
> FROM weights
> , categories
> WHERE categories.desc = 'Cecil'
> AND weights.categoryID = categories.id
> ORDER BY weights.measureDate DESC
> LIMIT ${SHOW_NUMBER}
> ;
> "
> for record in $(echo "${selectStr}" | sqlite3 ${DATABASE} | tac) ; do
If you like, you can tac in SQL:
selectStr="
SELECT * FROM (
SELECT categories.desc
, weights.measureDate
, weights.weight
, weights.fat
, weights.water
, weights.muscle
FROM weights
, categories
WHERE categories.desc = 'Cecil'
AND weights.categoryID = categories.id
ORDER BY weights.measureDate DESC
LIMIT ${SHOW_NUMBER}
) ORDER BY weights.measureDate
;
"
--
( Kees Nuyt
)
c[_]
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