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 vote108 views1 answer
Openquery update linked server
SQL
1 vote349 views1 answer
Sequence item 6 expected str instance bytes found mysql workbench
SQL
0 vote128 views1 answer
Cube oracle
SQL
0 vote106 views1 answer
Windows aggregate functions in postgresql
SQL
5 votes122 views3 answers
Sql server utc to local
SQL
0 vote101 views1 answer
Find the names of sailors who have reserved a red boat, and list in the order of age
SQL
0 vote137 views1 answer
Eliminate zero from integer mysql
SQL
0 vote112 views1 answer
Mysql make date from 2 column
SQL
1 vote181 views1 answer
Oracle create program if not exists
SQL
0 vote96 views1 answer
Postgresql copy backup table
SQL