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You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'row_number FROM e_goods where sectID=526 group by row_number having row_number ' at line 1
Select * From (SELECT *, @num := @num +1 AS row_number FROM e_goods where sectID=526 And gImg <>'' group by row_number having row_number > 0 Limit 12) g Order By gPrice Asc