Return Default value if no row found -mysql

Question

I\'m building query to search multiple rows from database like

SELECT 
  * 
FROM
  table1 
WHERE col1 = \'012311\' 
  OR col1 = \'0123631\' 
  OR col1 = \'0         


        

Answer 1

In MySQL you can use IFNULL to return a specified value if no row found i.e. when it returns NULL ex-

SELECT IFNULL( (SELECT col1 FROM table1 WHERE col1 in (your_list)) ,'default_value_you_want_to_return');

you can see examples of IFNULL here - IFNULL Example