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Tag: apache-spark-sql

pylint equivalent for SQL?

python having pylint scala having Scalastyle I searched around but didn’t find a style checker for SQL. Does it exist? Thank you. Answer You don’t require any error checker for Sql, as Sql is not a programming language. They IDE you use will help you to understand the issue in the query and can be formatted accordingly. Please choose appropriate

Row comparison in table via SQL

I have a table which is structured like the following: Is there a way to build a SQL query which – per each ID – looks for the Day in which Value1 OR Value2 has changed? The result I would like to achieve would be this: In which I can keep track of those changes per ID per Day. Edit:

SQL – Get the antepenultimate (before previous group/phase)

I have the following table and I’d like to get the antepenultimate or the value before the previous value. I already have group, value and prev_value, dateint… I’m trying to derive prev_prev_value This is the table with test data (as a CTE) Any ideas on how to derive prev_prev_value I’d like to use window functions and avoid joins. I’ve tried

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