April 2017
Beginner to intermediate
360 pages
9h 35m
English
Content preview from Learning Apache Cassandra - Second Edition
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Missing rows
What happens when we ask for a primary key that doesn't exist? Let's try it out:
SELECT * FROM "users" WHERE "username" = 'bogus';
You'll see that Cassandra simply returns no results; it is not an error to try to retrieve a primary key that does not exist.
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