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
3 reads
Ed Elliott's Sql Developer Blog
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
14 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
3 reads
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
169 reads
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
7 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)
408 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...
2019-10-16
6 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
122 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
8 reads
How to connect spark to ms sql server without '[Error] [JvmBridge] java.sql.SQLException: No suitable driver'?
“[Error] [JvmBridge] java.sql.SQLException: No suitable driver” - unable to connect spark to Microsoft SQL Server.
In spark when you want to connect to a database you use Read() passing in...
2019-10-01
426 reads
Blogs
Upgrading SQL Server Containers on the Laptop
By Steve Jones
I don’t have SQL Server installed on my laptop. In an effort to keep...
How to Find Expensive Queries in Amazon Redshift
Slow-running queries can degrade your Redshift cluster’s performance and lead to increased costs. Identifying...
The Notification Trap: How Input Fatigue Is Killing Deep Work in Tech
By gbargsley
If you've been here before, you know this blog is usually about SQL Server,...
Forums
SQL 2019 instance with AG, across 2 Windows 2016 OS servers - OSin-place upgrade
Hi all Can I get some perspective from the community please on performing in-place...
How Long is a Long I/O?
Comments posted to this topic are about the item How Long is a Long...
T-SQL Trigonometric Functions in SQL Server
Comments posted to this topic are about the item T-SQL Trigonometric Functions in SQL...
Question of the Day
How Long is a Long I/O?
In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?
See possible answers