March 2018
Intermediate to advanced
816 pages
19h 35m
English
Content preview from SQL Server 2017 Developer???s Guide
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Temporal Tables
Databases that serve business applications often need to support temporal data. For example, suppose a contract with a supplier is valid for a limited time only. It could be valid from a specific point in time onward, or it could be valid for a specific time interval—from a starting time point to an ending time point. In addition, often you'll need to audit all changes in one or more tables. You might also need to be able to show the state at a specific point in time, or all changes made to a table in a specific period of time. From a data integrity perspective, you might need to implement many additional temporal-specific constraints.
This chapter introduces temporal problems, deals with manual solutions, and shows you out-of-the-box ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.