Сожирай Скл
Return the first non-null value in a list:
SELECT COALESCE(NULL, NULL, NULL, 'W3Schools.com', NULL, 'Example.com');
-- output: W3Schools.com
Lokesh003
Return the first non-null value in a list:
SELECT COALESCE(NULL, NULL, NULL, 'W3Schools.com', NULL, 'Example.com');
-- output: W3Schools.comSELECT COALESCE(NULL, NULL, NULL, 'HELLO WORLD', NULL, 'Example.com');
RESULT
'Hello World' --> First value not null