Stairway to MDX - Level 4: The Order() Function: Beyond Cube Hierarchies
Bill Pearson continues his examination of the versatile Order() function, focusing upon its use in providing dataset sorts that reach beyond dimensional hierarchies
Stairway to MDX - Level 5: Members, and an Introduction to the MDX Members Functions
Bill explains what is meant by a 'Member' and 'Member function' in MDX. A member is an item in a dimension that include the 'measures' which are the values of the attributes that belong to a dimension. 'Measures' are themselves members of a dimension called the “measures” dimension. MDX has a set of functions, known as member functions, each of which allow us to perform operations upon any member of a dimension
Stairway to Server-side Tracing - Level 1 - Overview of Tracing
The first part of our stairway series on SQL Trace examines the overview of this subsystem in SQL Server, it's architecture and the kind of information it returns.
Stairway to Server-side Tracing - Level 1 - Overview of Tracing
The first part of our stairway series on SQL Trace examines the overview of this subsystem in SQL Server, it's architecture and the kind of information it returns.
Stairway to Server-side Tracing - Level 10: Profiler versus Server-Side tracing
Compares and contrasts tracing using Profiler with server-side tracing, illustrating important performance differences so that one can choose the right tool for the task at hand.
Stairway to Server-side Tracing - Level 2: Creating a SQL Trace Using T-SQL (Stairway Series)
This is the second article in our Stairway Series on SQL Tracing. Learn how to build traces in code with T-SQL.
Stairway to Server-side Tracing - Level 2: Creating a SQL Trace Using T-SQL (Stairway Series)
This is the second article in our Stairway Series on SQL Tracing. Learn how to build traces in code with T-SQL.
Stairway to Server-side Tracing - Level 3: Creating a SQL Trace Using SQL Server Profiler
In this third article of our Stairway Series on tracing, Dan Guzman goes into the method of using Profiler to help you create a custom trace of the events that you need to monitor.
Stairway to Server-side Tracing - Level 3: Creating a SQL Trace Using SQL Server Profiler
In this third article of our Stairway Series on tracing, Dan Guzman goes into the method of using Profiler to help you create a custom trace of the events that you need to monitor.
Stairway to Server-side Tracing - Level 4: How to Create and View Default and black box Trace Data
An introduction to the SQL Server default and black box traces targeted at DBAs who are new to these specialized traces. The article shows how to enable and disable the default trace feature and create a black box trace. The captured events are discussed along with how to view current and historical trace data of these traces.
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
Monday Monitor Tips: Virtual Machine Usage and Cost
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
Question of the Day
Getting the Average
I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers