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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.
"USE customers" is only needed in more complex queries
I like the syntax and layout, but don't include unecessary punctuation (;).
This practice is great, especially if you have a lot of fields and there are some that have aliases. It can take a little more time to read because you have to scroll, but is very clear.
In my last position, I often had to deal with multiple (+20) fields in the SELECT statement. It was easiest to read if the FROM statement was on a subsequent line; that way you will instantly know the table being used and will understand if a field is unfamiliar. Great shortcode though