SQL Saturday #80 - Wheeling. WV
Come get a free day of SQL Server training in Wheeling on Jul 23, 2011.
2011-07-18 (first published: 2011-06-22)
2,518 reads
Articles
Yet Another SQL Strategy for Versioned Data
There is a popular design for a database that requires a built-in audit-trail of amendments and additions, where data is never deleted, but superseded by a later version. Whilst this is conceptually simple, it has always made reporting the latest version of data complicated. Alex Kuznetsov joins the debate on the best way of doing this with an example using an indexed view and the filtered index.
2011-07-15
3,274 reads
2011-07-14 (first published: 2009-06-10)
7,101 reads
Second Normal Form
In this article Tom Thomson takes a look at what second normal form means, how it is violated, and how you can fix it. This is part of our normalization series.
2011-07-14
8,095 reads
Identifying PII Data to Lock Down in SQL Server - Part 1
We're pretty confident that we have locked down and encrypted our financial data, but a lot of our customer's PII (Personally Identifiable Information) data is still held in unencrypted form. This data is able to be selected directly by read only business users on many of our downstream reporting, datawarehouse and standby servers. The rise of identity theft makes protecting this data imperative. DBAs are the custodians of this information and must protect it like we protect our own personal information. Recent publicity over the theft of Sony PSN data underscores both the economic and ethical importance of protecting personal data.
2011-07-14
2,864 reads
Questions About SQL Server Distribution Statistics
Fabiano Amorim was asked a couple of questions about SQL Server Distribution Statistics. Having given an answer based on his current knowledge, he then decided to find out for himself whether what he'd said was right, and started an epic journey of exploration into Distribution Statistics and the way that the Query Optimiser uses them.
2011-07-13
2,132 reads
2011-07-12 (first published: 2009-06-03)
8,716 reads
Questions About SQL Server Distribution Statistics
Fabiano Amorim was asked a couple of questions about SQL Server Distribution Statistics. Having given an answer based on his current knowledge, he then decided to find out for himself whether what he'd said was right, and started an epic journey of exploration into Distribution Statistics and the way that the Query Optimiser uses them.
2011-07-12
2,173 reads
Creating a 2 Node SQL Server 2008 Virtual Cluster Part 1
Learn how to create a Windows 2008\SQL Server 2008 virtual cluster in this three part series.
2011-07-11
14,192 reads
TSQL Challenge 60 - Generate a relational tree structure from a string
Your job is to read a string containing product hierarchy information and generate a relational table (result set) representing the hierarchy of categories.
2011-07-11
987 reads
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Question of the Day
Creating a JSON Document III
I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT TOP 2
json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers