I love SQL. But it hard to get other DS on board who think that 40 lines of Spark is better than a 10 line SQL query.
The only thing that worries me with SQL is when having to write UDFs for, say, computing a Z-score. But maybe it's just because I have never done it? Do you have any good resources about this?
The only thing that worries me with SQL is when having to write UDFs for, say, computing a Z-score. But maybe it's just because I have never done it? Do you have any good resources about this?