Answers for "where is null"

sql not null

SELECT column_name FROM table_name 
WHERE column_name IS NOT NULL;

Posted by: Guest on December-07-2020

how to put is null in where in clause

SELECT *
FROM tbl_name
WHERE 
(id_field IN ('value1', 'value2', 'value3') OR id_field IS NULL)

Posted by: Guest on July-16-2021

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