Last updated 3 months ago
The null condition tests for nulls, when a value is missing or unknown. ()
expression IS [ NOT ] NULL
This function is fully supported by .
CREATE TABLE NullTest ( id INTEGER, name VARCHAR(30), lastname VARCHAR(30) ); INSERT INTO NullTest (id, name, lastname) VALUES (1, 'name1', 'lastname1'), (2, 'name2', NULL), (3, 'name3', 'lastname3'), (4, 'name4', NULL);
CREATE TABLE NullTest ( id INTEGER, name VARCHAR(30), lastname VARCHAR(30) ) COMMENT = '{ "origin": "sf_sc", "name": "snowconvert", "version": { "major": 0, "minor": 0, "patch": "0" }, "attributes": { "component": "redshift", "convertedOn": "01/08/2025", "domain": "test" }}'; INSERT INTO NullTest (id, name, lastname) VALUES (1, 'name1', 'lastname1'), (2, 'name2', NULL), (3, 'name3', 'lastname3'), (4, 'name4', NULL);
SELECT * FROM nulltest WHERE lastname IS NULL;
2
name2
NULL
4
name4
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