Else if mysql

Mysql else if

IF condition1 THEN
    statements;
ELSEIF condition2 THEN # OPTIONAL
	statements;
ELSE # OPTIONAL
    statements;
END IF;

Mysql if else

IF condition THEN
   statements;
ELSE
   else-statements;
END IF;

Source: mysqltutorial.org

Else if mysql

select id, 
    (SELECT 
    IF(qty_1<='23',price,1)
    ELSEIF(('23'>qty_1 && qty_2<='23'),price_2,1)
    ELSEIF(('23'>qty_2 && qty_3<='23'),price_3,1)
    ELSEIF('23'>qty_3,price_4,1)
    END IF) as total 
 from product;

Source: stackoverflow.com

Else if mysql

case 
  when qty_1<='23' then price
  when '23'>qty_1 && qty_2<='23' then price_2
  when '23'>qty_2 && qty_3<='23' then price_3
  when '23'>qty_3 then price_4
  else 1
end

Source: stackoverflow.com

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