Dynamically Build SQL MERGE statement in SSIS

http://www.sqlservercentral.com/articles/EDW/77100/ I came across this the other day, when I was looking at using the SQL MERGE statement to replicate the functionality of the Slowly Changing Dimension task in SSIS. There are many benefits to using MERGE instead of the SSIS task, one of my favourites being only having to run 1 SQL statement for the whole task, instead of one for each Lookup, and then subsequent UPDATE or INSERT statement. This link however, takes it one step further by dynamically building the MERGE statements to use in your ETL. This removes the need to manually update scripts when the...

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Debugging MDX Queries from SSRS using Profiler and SQL Management Studio

At work recently I came across the need to assess the MDX queries used by some of the reports on our reporting server, along with the parameters that were passed into it (as most of the queries are powered by parameters that are┬ápassed into the MDX by parent reports) Unfortunately, you can’t use SSMS to run parameterised MDX queries like you can in SSRS, but the tutorial below gives a good example using SQL Server Profiler, capturing traces of executed queries by SSRS along with the parameter values used. From here you can just paste the MDX into SSMS, replace...

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Identifying cause of duplicate attribute keys in SSAS

http://ms-olap.blogspot.com/2009/11/duplicate-attribute-key-has-been-found.html At work today, I was a bit stumped when SSAS reported the cube wouldn’t build, due to a duplicate key found in the source database, although having checked this there was none to be found. However after consulting with a colleague, and finding this article on the internet, it turns out that there was a white space after the value of an attribute in the source DB. After SSAS runs the DISTINCT query on the source DB, it trims the white space, and because of that it created a duplicate key. The post-processing of attributes can be customised in...

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