It is a fact of life: SQL Server databases change homes. They move from one instance to another, from one version to the next, from old servers to new ones. They move around as an organisation’s data grows, applications are enhanced or new versions of the database software are released.
2011-07-18
3,616 reads
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for a database that requires a built-in audit-trail of amendments and additions, where data is never deleted, but superseded by a later version.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
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
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
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
The Replication infrastructure in SQL Server is implemented using SQL Server Agent to execute the various components involved in the form of a job (e.g. LogReader agent job, Distribution agent job, Merge agent job) SQL Server jobs execute a binary executable file which is basically C++ code.
2011-07-11
3,267 reads
The basic texts for developing SQL code tend to leave unsaid the basic techniques for building routines such as stored procedures in TSQL. Phil Factor is well-known for his more lengthy and complex stored procedures, so we asked him to explain in more detail how he goes about developing things without the comfort of Visual Studio.
2011-07-08
3,997 reads
Table Value Constructors (TVCs) are a useful feature of 2008, allowing you to specify tables of values and expressions. Users who are stuck with previous versions of SQL Server can play along, since Rob Sheldon demonstrates that there have always been ways of doing this in SQL Server, though less elegantly.
2011-07-07
3,929 reads
Recently I came across with an article on DB2 about using Union instead of OR. So I thought of carrying out a research on SQL Server on what scenarios UNION is optimal in and which scenarios OR would be best. I will analyze this with a few scenarios using samples taken from the AdventureWorks database
2011-07-06
6,349 reads
Indexes speed retrieval of rows from database tables or views. Here are the top index-related T-SQL statements that SQL Server DBAs should know.
2011-07-05
8,937 reads
By Steve Jones
gnossienne– n. the awareness that someone you’ve known for years still has a private...
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By Brian Kelley
A few months ago I started using Deepstash. Deepstash breaks books into the key...
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The Data API Builder MCP Server, v2.x, includes a number of tools. What actions can these tools perform in your database?
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