June 2018
Intermediate to advanced
478 pages
10h 52m
English
Content preview from IBM Db2 11.1 Certification Guide
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Tablespace planning
Tablespaces are very important structures in Db2, containing tables, indexes, and large and long objects. In earlier versions of Db2, tablespaces were made up of a number of containers that mapped to the physical disk. Starting with Db2 10.1, storage groups were added to provide a layer of abstraction between tablespaces and the physical disk, allowing tablespaces to be moved between the storage groups based on business needs (fast SSD drives for the recent data, medium SAS drives for the previous month's data, and slow SATA drives for archived data).
Not all data is the same. Some data is written once and read often, while other data is changed often and seldom read. Some data arrives at the database in large bunches ...
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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.