/SQL/Mysql where value is null

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

Similar codes

15 votes285 views4 answers
Export mysql db using command line
SQL
0 vote269 views1 answer
Update one column from another column in same table
SQL
21 votes283 views5 answers
Oracle all tables
SQL
0 vote271 views1 answer
Recover deleted data from mysql database
SQL
-2 votes297 views3 answers
How to fetch first 10 rows in sql
SQL
0 vote277 views1 answer
How change the field place in mysql
SQL
0 vote268 views1 answer
Conda install pymysql "windows"
SQL
0 vote249 views1 answer
Import all databases mysql
SQL
13 votes292 views2 answers
Oracle select into and inner join
SQL
0 vote286 views1 answer
Sql commands in android
SQL

Share