This community-built FAQ covers the “Introduction” exercise from the lesson “Multiple Tables”.
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This exercise can be found in the following Codecademy content:
Web Development
Data Science
Learn SQL
FAQs on the exercise Introduction
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Is there a way to group the select statement rather than simply typing out select * from … 3 times? Something along the lines of select * from (table1, table2, table3) limit 5;?
I tried it but the checkbox doesn’t like it and I don’t know if it’s because my syntax is off (but still got results) or whether it is validating only against the statement it wants you to simply copy paste.
3 Likes
Hello Codecademy Forum.
I was wondering if it is possible to give each table a header? I tried using the AS alias on “FROM table_foo” with no joy for my desired output.
Thanks if anybody can understand what I’m asking for.
Martin
1 Like
I get weird results when filtering the querie to only give subscriptions greaten than 10 or 6 months
For example this is an example:
SELECT DISTINCT subscription_length
, customer_name
FROM subscriptions
CROSS JOIN customers cu
WHERE subscription_length > 10 --It should only give the 12 months subs but instead I get everything 3,6 and 12 months
Could you explain why please?
Why is the date format of the purchase_date column mm-dd-yyyy, instead of the standard yyyy-mm-dd?
