Spark .NET - Spark ML TF-IDF
Spark ML in .NET for Apache Spark Spark is awesome, .NET is awesome, machine learning (ML) is awesome, so what could be better than using .NET to write ML...
2020-07-07
15 reads
Ed Elliott's Sql Developer Blog
TF-IDF in .NET for Apache Spark Using Spark ML
Spark ML in .NET for Apache Spark Spark is awesome, .NET is awesome, machine learning (ML) is awesome, so what could be better than using .NET to write ML...
2020-07-07
Approaches to running Databricks ETL code from Azure ADF
Databricks is fantastic, but there is a small issue with how people use it. The problem is that Databricks is all things to all people. Data scientists and data...
2020-06-03
173 reads
The four tenets of ETL testing
Every ETL pipeline is only ever as reliable as the data that the upstream system provides. It is inevitable that assumptions you make about the data you are provided...
2020-03-06
2020-02-21
1 reads
Passing status messages and results back from Databricks to ADF
When we use ADF to call Databricks we can pass parameters, nice. When we finish running the Databricks notebook we often want to return something back to ADF so...
2020-02-05
2 reads
Spark Delta Lake, Updates, Deletes and Time Travel
When you use delta lake there are a couple of interesting things to note based around the fact that the data is stored in parquet files which are read-only...
2020-01-20
Validating upstream data quality in ETL processes, SQL edition
It is a non-null constraint, not a non-ish-null constraint You are writing an ETL process, part of this process you need to import a semi-structured file (think CSV, JSON,...
2019-10-28
140 reads
SQLCover 0.5 - Fixes, smaller features and an exciting surprise
It has been a little while but I have updated SQLCover to include a number of fixes and small features, the majority of which are improvements to the html...
2019-10-30 (first published: 2019-10-16)
382 reads
How to test ETL Processes in production
This is the final part in the four-part series into testing ETL pipelines, how exciting!
Part 1 - Unit Testing https://the.agilesql.club/2019/07/how-do-we-test-etl-pipelines-part-one-unit-tests/ Part 2 - Integration Testing https://the.agilesql.club/2019/08/how-do-we-prove-our-etl-processes-are-correct-how-do-we-make-sure-upstream-changes-dont-break-our-processes-and-break-our-beautiful-data/ Part 3...
2019-10-02
22 reads
Blogs
Your First Databricks Notebook
By DataOnWheels
On August 4, 2020, I presented this on the weekly Pragmatic Works webinar series....
SQL Clone Works with FILESTREAM
By Steve Jones
SQL Clone is an amazing product that virtualizes your data, allowing multiple instances to...
Fun and profit with UTF-8
When SQL Server 2019 was announced, it brought with it UTF-8 support. Also available...
Forums
Removing TDE from a Database: Level 4 Stairway to TDE
Comments posted to this topic are about the item Removing TDE from a Database:...
SQL Deadlock
I have Simple SP to Insert Single Record from Application. When I executes it...
Connecting and working with SQL server in SSMS without WMI is extremely slow.
Hi All, I have a slightly weird situation; on one PC that is domain...
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