How to use OR in SQL query

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I'm new to SQL and can't figure why this query returns no results BUT I do know it's becuase I'm using the OR condition incorrectly. If

Can someone please show the correct way to go about this?

Thanks in advance,
-DA

SELECT trddata.id, trddata.ts, instr.name, instr.underlying, instr.expiration,instr.strike, instr.callput,opnint.vol, trdind.name ind,exch.name exch, trddata.price,trddata.bidprcbbo,trddata.askprcbbo  
FROM trdopt trddata 
JOIN instropt instr 
ON trddata.optid = instr.id 
JOIN trdindopt trdind 
ON trdind.id = trddata.ind 
JOIN exchopt exch 
ON trddata.exchcode = exch.id 
JOIN opnintopt opnint 
ON opnint.optid = trddata.optid 
WHERE opnint.ds = DATE_FORMAT(trddata.ts, '%Y-%m-%d') 
AND trddata.id >= 71125752 
AND trddata.ts <= '2013-06-20 16:30:36' 
AND instr.underlying = 'AAPL'  
AND exch.name = 'AMEX'  
OR exch.name = 'CBOE'  
OR exch.name = 'ISE'  
OR exch.name = 'PHLX'  
ORDER BY trddata.id 
LIMIT 100;

Posted 21-Jun-13 4:27am

d.allen101

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[no name] 21-Jun-13 10:30am

Try "(exch.name = 'AMEX'
OR exch.name = 'CBOE'
OR exch.name = 'ISE'
OR exch.name = 'PHLX') and see what happens

d.allen101 21-Jun-13 10:53am

thank you, that was it!

2 solutions

Solution 2

I know, that your problem was solved, but the SQL IN operator[^] would better suit for your situation. Also the code makes more sense when you are reading it after time.
Check the example code segment:

SQL

AND exch.name IN ('AMEX', 'CBOE', 'ISE', 'PHLX')

The opposit is NOT IN.

Posted 21-Jun-13 5:53am

Matej Hlatky

Comments

d.allen101 21-Jun-13 12:02pm

yeah that's actually what I did. it's more elegant...thanks!

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Prasad_Kulkarni · Accepted Answer · 2013-06-21T04:28:00

This way:

SQL

SELECT trddata.id, trddata.ts, instr.name, instr.underlying, instr.expiration,instr.strike, instr.callput,opnint.vol, trdind.name ind,exch.name exch, trddata.price,trddata.bidprcbbo,trddata.askprcbbo
FROM trdopt trddata
JOIN instropt instr
ON trddata.optid = instr.id
JOIN trdindopt trdind
ON trdind.id = trddata.ind
JOIN exchopt exch
ON trddata.exchcode = exch.id
JOIN opnintopt opnint
ON opnint.optid = trddata.optid
WHERE opnint.ds = DATE_FORMAT(trddata.ts, '%Y-%m-%d')
AND trddata.id >= 71125752
AND trddata.ts <= '2013-06-20 16:30:36'
AND instr.underlying = 'AAPL'
AND (exch.name = 'AMEX'
OR exch.name = 'CBOE'
OR exch.name = 'ISE'
OR exch.name = 'PHLX')
ORDER BY trddata.id LIMIT 100