Those are not written on their own line, nor need they be, since it’s just two words. We compare that to the two GROUP BY columns. What is clear about this query? Immediately we see that we are getting back three result columns, as they are written each on their own line. Let’s take the first demonstration query from the website at a target width of 50: SELECT Indeed what we would like is for the query to use more lines of space and highlight subqueries and other blocks by clearly indenting them. What if we named many columns in it, many tables in the FROM, added filters and sorts, with subqueries and joins of varying depth? As a query gains complexity, it deserves more space. Why use four lines when one will do?īut let us now slowly increase the complexity of our query. This feels like YAGNI applied to text formatting. The four lines used by the third rendering have wasted a maximum amount of screen space for zero additional benefit in terms of visual understanding. Let us assume we had some 80 characters of width in which to work (an archaic, standard, if not small, editor size). For me, the second and third renderings detract by using whitespace needlessly. This statement contains a mere four words that are instantly parseable by the mind. Which one is the most understandable visually? For me, it is the first. Here are some possible renderings of this query: SELECT a FROM t To demonstrate, let’s take, for example, a query SELECT a FROM t. Always maintain visual alignment regardless of your editor configuration to use spaces or tabs at any tab width.Attempt to use available horizontal space in the best way possible.Understand all CockroachDB (mostly anything Postgres) syntax.A beautifully formatted SQL statement is one in which the operation of the statement is understandable visually. Sqlfmt’s goal is to beautifully format SQL statements. Not just something that puts newlines between all terms, but one that adapts to the functional depth of the statement by grouping blocks together. I wanted a SQL formatter that acted in the same way.
#Online sql formatter code
As my code gets more complicated or deeplier nested, I just love that it slowly adds newlines to break up functional hierarchy into visual blocks. It has been a complete game changer for me in terms of how I write fancy JS. However I’ve recently been spoiled in my JavaScript (well, JSX) editing with prettier. It makes sense that they have easy rules like “each term on its own line”. This is fine and I’m happy they exist and have provided value. Those other formatters undoubtedly use a simpler algorithm for their formatting. I believe that using available space is a requirement for that. I wanted something that I could hook up to my text editor on save and it would always produce beautiful results. While I understand why they do that, I was not satisfied with using them to automatically format my SQL. I tested six of the formatters from the first page of results with the query SELECT 1, 2, and all six of them formatted it onto two or three lines.
#Online sql formatter Offline
Justification for sqlfmtĪ search for sql formatter uncovers lots of online and offline formatters. sqlfmt is for those who think it is better to have no choice in the SQL formatting than it is to format it by hand. If you do not heartily ascribe to automated, opinionated (i.e., few or no options) choices in your code formatters, sqlfmt is not for you. As we are dealing with code formatting here, there is much opinion, and here I will discuss mine. In addition, I will argue for its need in light of the existing SQL formatters and describe its somewhat interesting implementation.
#Online sql formatter how to
Here I will describe how to use it and its features. I built sqlfmt with my Cockroach Labs colleague Raphael “knz” Poss. Its purpose is to beautifully format SQL statements. It’s one of the most popular blogs we’ve ever published so we wanted to get it back up on the site for a new crop of blog readers. *This post was originally published in 2018 by former CockroachDB engineer, Matt Jibson, who owns goats and makes his own soap. Learn SQL from scratch with a focus on what app devs need to know, from schema design to writing transactions that perform at scale.
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