Help Center/ GaussDB/ Developer Guide(Centralized_V2.0-8.x)/ FAQ/ How do I determine whether a column is null?
Updated on 2025-08-19 GMT+08:00
How do I determine whether a column is null?
Answer: Use IS NUL and IS NOT NULL to determine whether a column is null.
Example:
gaussdb=#SELECT * FROM tab WHERE col1 IS NULL; Parent topic: FAQ
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