July 2018
Intermediate to advanced
334 pages
8h 20m
English
Content preview from Modern Scala Projects
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Step 3 – creating a weapon sales orders schema
Let's create a schema for the past sales order dataset:
val salesOrderSchema: StructType = StructType(Array( StructField("sCustomerId", IntegerType,false), StructField("sCustomerName", StringType,false), StructField("sItemId", IntegerType,true), StructField("sItemName", StringType,true), StructField("sItemUnitPrice",DoubleType,true), StructField("sOrderSize", DoubleType,true), StructField("sAmountPaid", DoubleType,true)))
Next, let's create a schema for weapon sales leads.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.