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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Is it only me but how can I write sql query when there isn't any description..
Cool kata but had to google about median
Do you maybe know why with using to_char(date, 'YYYY')::int etc which result in good output, the whole result didn;t work, I had to use extract
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