SQL Server 2012 introduced an unified BI Semantic Model (BISM) which is based on some of the existing as well as some new technologies. This model is intended to serve as one model for all end user experiences for reporting, analytics, scorecards, dashboards, etc. In this tip, I will talk in detail about the new BISM, how it differs from earlier the earlier Unified Dimensional Model (UDM) and how BISM lays down a foundation for future.
SQL Saturday at the gateway between Europe and Asia. If you are nearby, come join in a free day of SQL Server training and presentations.
Tony Davis argues that the Standards and best practices exist to avoid being hacked, but implementing them requires time and investment and often there simply doesn't seem to be the will to do it.
Today Steve Jones reminds us that we should analyze and re-evalute our indexing strategy on a regular basis.
A free day of training, SQL Saturday comes to Tokyo, Japan. Come have a SQL Server day with fellow data professionals if you can.
One of the most common T-SQL questions is on returning a ranked result set for each member of a group. Dave Ballentyne brings us a short tutorial on how you can do this in T-SQL.
Phil Factor is pleasantly surprised by the SQL Server Pro awards, and talks about the thinking behind Down Tools Week.
Generally, you will have no need to worry about the number of virtual log files in your transaction log. However, if you use the default settings for 'auto-grow', you can end up with such 'fragmentation' in your transaction log as to affect performance noticably. How can this be avoided? How can you tell it's a problem? What do you do about it? Greg explains.
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Comments posted to this topic are about the item OUTER APPLY Fundamentals: Part 2
I have this data in the OrderHeader table in a SQL Server 2025 database (ordered by CustomerID ASC):
orderid orderdate customerid complete 3 2025-05-10 00:00:00.0002 1 21 2024-01-10 00:00:00.0003 1 15 2023-10-28 00:00:00.0004 1 13 2025-03-08 00:00:00.0006 1 11 2024-04-02 00:00:00.0007 1If I run this query, how many rows are returned?
SELECT * from dbo.OrderHeader where customerid between 3 and '6'See possible answers