October 2012
Intermediate to advanced
238 pages
5h 17m
English
Content preview from What's New in SQL Server 2012Become 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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String store constraint
If you have ever encountered the error message File system error: a FileStore error from WriteFile occurred, then you will probably be all too familiar with the reason for this message. In a multidimensional database, strings are stored using a different architecture to numeric data so that performance optimizations can be made based on data characteistics.
A dimension attribute such as a name or location could be considered as string data. Also a string data is used for distinct count measures and keys. SQL Server's default behavior is to store the string data in a file (.string) that has a 4GB size limit. This still exists as the default in SQL Server 2012, but this edition introduces a new storage feature called scalable ...