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  #1  
Old 01-30-2005, 10:36 PM
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Adrian Schneider Adrian Schneider is offline
 
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Default Query: & && or AND Help

PHP Code:
$standingsfull=$DB_site->query("SELECT * FROM user WHERE wins!='0' & losses!='0' ORDER BY rating DESC"); 
Okay I have tried AND, & and &&, and neither work. The way it is now (with single &) it ignores the != on the right side of the &. With && it selects both of them (completely ignoring my !=, and with AND I get the same as &&. Anyone have any ideas?
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Old 01-30-2005, 11:20 PM
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PHP Code:
$standingsfull=$DB_site->query("SELECT * FROM user WHERE wins!=0 AND losses!=0 ORDER BY rating DESC"); 
should work.

But then your query logic seems odd.
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Old 01-30-2005, 11:26 PM
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For the standings, I don't want it to display people who havn't played any games, or there would be an extra thousand people in there inbetween the good/middle and the lower scored players.
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Old 01-30-2005, 11:37 PM
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Quote:
Originally Posted by TheSpecialist
For the standings, I don't want it to display people who havn't played any games, or there would be an extra thousand people in there inbetween the good/middle and the lower scored players.
It's difficult to understand your explanation without more background info and possibly table structure.
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  #5  
Old 01-30-2005, 11:40 PM
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Quote:
Originally Posted by TheSpecialist
For the standings, I don't want it to display people who havn't played any games, or there would be an extra thousand people in there inbetween the good/middle and the lower scored players.
The you should be using OR, not AND - otherwise someone who has never won (or never lost) will not be displayed.

Personally, I would use this ;

[sql]DB_site->query("SELECT * FROM user WHERE wins>0 OR losses>0 ORDER BY rating DESC");[/sql]
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Old 01-31-2005, 12:08 AM
noppid noppid is offline
 
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He's right, I got lost in that logic too. It's OR.
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Old 01-31-2005, 12:52 AM
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& is bitwise "and" in most languages. For clarity in both PHP and SQL, I use the keyword "and" (and "or").
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Old 01-31-2005, 01:59 AM
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Quote:
Originally Posted by filburt1
& is bitwise "and" in most languages. For clarity in both PHP and SQL, I use the keyword "and" (and "or").
That's right, imagine writting code like writting an essay .
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  #9  
Old 01-31-2005, 01:17 PM
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i also use AND/OR in C++ as i defined makros there, so the & is just used for bitwise operations.

it's much easier to read the code quickly then
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