Combine CSV Files without Duplicating Headings using C#

By:
On:
In: Data Integration
With: 3 Comments

The simple script below shows how to combine csv files without duplicating headings using C#. This technique assumes that all of the files have the same structure, and that all of them contain a header row. The timings in this post came from combining 8 csv files with 13 columns and a combined total of 9.2 million rows. I first tried combining the files with the PowerShell technique described here. It was painfully slow and took an hour and a half! This is likely because it is deserializing and then serializing every bit of data in the files, which adds a lot of unnecessary overhead. NextRead More →

Delete SSAS Partitions with TMSL and PowerShell

By:
On:
In: PowerShell, SSAS Tabular
With: 1 Comment

This post demonstrates how to delete SSAS partitions with TMSL and PowerShell. TMSL stands for Tabular Model Scripting Language, and it is used for working with SSAS Tabular databases programmatically at compatibility level 1200 (SQL Server 2016). Multidimensional models and previous versions of SQL Server all use Analysis Services Scripting Language (ASSL for XMLA). A common use for TMSL is automating the processing of tabular models using the SQL Agent, SSIS, PowerShell, or some other application. Another use could be deleting partitions used for development after deploying a model. That process goes like this: A partition is created for development purposes that contains a subset of theRead More →