When will I learn the above fact … You cannot make a positive match on a NULL, nor a negative !
NULL is neither = “XXX” nor != “XXX”, this can and does cause code problems where values are unexpectedly NULL !
Anyway, enough of that !
When will I learn the above fact … You cannot make a positive match on a NULL, nor a negative !
NULL is neither = “XXX” nor != “XXX”, this can and does cause code problems where values are unexpectedly NULL !
Anyway, enough of that !