Sir, here's a guess in return. The best way to deal with this is to
have your client app run a query that counts the rows where
packagesParts.pri <> 0. Then run the query below only if the count is
greater than 0.
Bob Hall
>Hi,
>
>I am guessing this is the kind of problem that would be easier to solve with
>a sub select
>
>
>SELECT
>simpleparts.category,simpleparts.partnumber,simpleparts.manufacturer,simplep
>arts.descrp,ABS(packagesParts.pri) as abPRI,categories.sortorder
>FROM ((packagenames LEFT JOIN packagesParts ON packagenames.packageID =
>packagesParts.packageID)
>LEFT JOIN simpleparts ON packagesParts.partnumber = simpleparts.partnumber)
>LEFT JOIN categories ON simpleparts.category = categories.category
>WHERE simpleparts.configurator <>0
>AND categories.onconfig <>0
>AND packagenames.packagename = $system_name
>AND simpleparts.category = ?
>ORDER BY abPRI DESC
>
>This in one case returns
>
>
>------------------+------------+--------------+---------------------+------+
>-----------+
>| category | partnumber | manufacturer | descrp | pri
>| sortorder |
>+------------------+------------+--------------+---------------------+------
>+-----------+
>| Game Controllers | 234232 | Jumbo Video | Video card | 1 |
>24 |
>| Hard Drives | 78544 | HTH | a Drive controller
>| 1 | 12 |
>| Floppy Drives | HP-4p | HP | 4P - 48bit
>| 1 | 13 |
>| CPUs | int-550c | Intel | Celeron 500MHZ 128K |
>1 | 1 |
>| Memory | mem-102 | who knows | 256M 120pin | 1
>| 3 |
>| Scanners | 9955 | Acer | 10 ISA
>| 0 | 22 |
>| Game Controllers | game-01 | Atari | Simple stick |
>0 | 24 |
>| CPUs | INT550 | INTEL | PIII 550 CPU
>| 0 | 1 |
>| Memory | mem-101 | who knows | 128M
>| 0 | 3 |
>| Modems | mod-124 | USR | sportster 28.8
>| 0 | 9 |
>+------------------+------------+--------------+---------------------+------
>+-----------+
>
>But I have one more constraint that I would like to be able to include in
>the query and not deal with in code.
>
>I want to not return anything in the case where none of the
>packagesParts.pri are = 0 this is hard because I do what those
>packagesParts.pri =0 where there is a packagesParts.pri = 1 in the result set.
>
>
>Is there a way to cram this into my query with mysql as it stands?
>
>
>I saw some people here do some pretty fancy stuff, so I thought it was worth
>asking.
>
>
>Thanks,
>
>Eric
>
>
>Frazier Consulting
>http://www.kwinternet.com/eric
>(250) 655 - 9513
>
>
>
>
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