mysql NULL value in where in CLAUSE

Question

how to deal with NULL value in mysql where in CLAUSE

i try like

SELECT * FROM mytable WHERE field IN(1,2,3,NULL)
<         


        

Answer 1

As by my understanding you want to pull every record with 1,2,3 and null value.

I don't think its possible to put null in the IN operator. Its expects values and null is well.. not a value. So You really have to put the OR with the null to get the desired result.