mysql query ordering by different column depending on value of another column

Question

I have tried this code but it is not working.

$select=$conn->query("select * from tbl_testquestion ORDER BY SUBSTRING( type_id=0 qu_id RAND() ) , type_id=1 qu_id ASC");

please suggest edit if question not reached the standards

OneSolitaryNoob · Accepted Answer · 2016-12-08 06:49:26Z

2

you'll want to use a case statement

SELECT *      
FROM tbl_testquestion 
ORDER BY 
    CASE 
        WHEN type_id=0 THEN RAND() 
        WHEN type_id=1 THEN qu_id 
    END ASC

answered Dec 8, 2016 at 6:49

OneSolitaryNoob

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1 Comment

OneSolitaryNoob Over a year ago

yeah, upped - the title is a little hard to understand, maybe change it to "mysql query: ordering by different column depending on value of another column"

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