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Left/Right Join MYSQL

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Name: nicky_blue
Date: June 19, 2006 at 22:08:00 Pacific
OS: WinXP
CPU/Ram: 256
Product: Intel
Comment:

Could somebody tell me how to optimized a Grouped left/ right join in MYSQL Query. i quite dissapointed about it cause same query and data using MS Access is like 3 times faster than MYSQL. i'm using 3.2.58 and intend to keep using that version



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Response Number 1
Name: jhunt303
Date: June 20, 2006 at 01:36:33 Pacific
Reply:

You really need to index the link fields (really). I can't 'explain' in this little box, but type EXPLAIN before your SELECT statement and look to see if indexes are being used. There are ways to define which table is joined first, again, look at the output of your EXPLAIN command.


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