I have a SQL Server table with more than 15 columns.
One of my column name is
0, 1, 2, null
Id Name verification_Status
1 John 0
2 Kat 1
3 Williams Null
4 Rosy null
set verification_Status = 0
where verification_Status == null
update masterTable set verification_Status = 0 where verification_Status is null
<> is Standard SQL;
!= is its T-SQL equivalent. Both evaluate for values, which
NULL is not -- NULL is a placeholder to say there is the absence of a value.
Which is why you can only use
IS NULL /
IS NOT NULL as predicates for such situations.
This is standard of all kinds of SQL management platforms