April 2017
Intermediate to advanced
352 pages
12h 43m
English
Content preview from Exam Ref 70-761 Querying Data with Transact-SQL, 1st EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 2. Query data with advanced Transact-SQL components
This chapter covers a number of T-SQL components that allow you to manipulate and analyze data, some of which might be considered more advanced than the ones covered in Chapter 1, “Manage data with Transact-SQL.” You will learn how to nest queries and use the APPLY operator, work with table expressions, apply data analysis calculations with grouping, pivoting, and windowing, query historical data from temporal tables, and query and output XML and JSON data.
Skills in this chapter:
Query data by using subqueries and APPLY
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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.