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Re: Procedure that select different number of columns
Posted by: Rick James
Date: October 22, 2013 09:19AM

Aside...
PRIMARY KEY (`itemID`),
UNIQUE KEY `itemID_UNIQUE` (`itemID`),
A PRIMARY KEY is a UNIQUE KEY, so DROP itemID_UNIQUE. (Ditto in most of the other tables.)

Would you accept this output?
name       | symbol      | number | Attributes                                              |
resistor   | SMD0805100K | 321    | resistance=100k, power=1/4                              | 
stabilizer | LM7805      | 2      | input voltage=7.5-35, output voltage=5, max current=1A5 |
That could be done with a combination of a subquery, CONCAT(), CONCAT_WS(), etc. Make a crack at it; I'll help you out if you get in trouble.

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Re: Procedure that select different number of columns
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October 22, 2013 09:19AM


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