Mysql if null

Mysql where value is null

SELECT *
FROM contacts
WHERE last_name IS NULL;

Check if value is null mysql

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

Source: stackoverflow.com

Mysql ifnull

##syntax:
SELECT IFNULL(col_with_null_value, default_value);

##you can see the result select with the string NA where the document is null:
SELECT IFNULL(user_document_id, 'NA');

Mysql if null

IFNULL(MAX(EMAIL), "example@google.com") as email

Mysql return 0 if null

SELECT IFNULL(field, 0) AS field FROM products WHERE id = 1

SELECT IFNULL(SUM(field), 0) as field FROM products

If null mysql

SELECT IFNULL(NULL, "W3Schools.com");

Similar codes

0 vote171 views1 answer
Move table to a different schema
SQL
0 vote182 views1 answer
Mysql error 1251
SQL
13 votes228 views3 answers
Mysqldump structure only
SQL
-1 vote167 views3 answers
Update mongodb version ubuntu
SQL
0 vote179 views2 answers
Sql server select first day of previous year
SQL
0 vote167 views1 answer
Select last N rows mysql
SQL
3 votes182 views4 answers
Truncate syntax in sql
SQL
2 votes204 views1 answer
Select from array in psql
SQL
23 votes211 views2 answers
Query to delete a database in mysql
SQL
1 vote175 views2 answers
Insert sqlite
SQL