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Mysql where value is null

Mysql where value is null

SELECT *
FROM contacts
WHERE last_name IS NULL;

9

Check if value is null mysql

SELECT * from TABLE where CODE IS NULL OR CODE!='C'

4

Source: stackoverflow.com

Mysql set value as null

UPDATE table SET field = NULL WHERE something = something

2

Source: stackoverflow.com

If column value is null then in mysql

 SELECT 
    contactname, IFNULL(bizphone, homephone) phone
FROM
    contacts;

0

Source: mysqltutorial.org

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