Move SQL Server Files for Master Database
In this second part of this article we look at how to move the SQL Server master database files to a different location.
Deceptive Visualizations
I'm sure there are plenty of examples, but I've seen deceptive data visualizations far too often in mass media. I don't often watch the news, but at times I've been at the gym, saw a graph on a television, and been a little surprised. The issue that bothered me is similar to what's discussed in […]
Conditional DELETE and INSERT in PostgreSQL
Introduction We are comfortable with inserting/deleting record(s) into/from a table. But we sometimes get confused when we need to insert or delete records conditionally from a table. Let us look at an example. Example scenario Suppose we have a table, called ALL_EMPLOYEES, which contains all employees' information who are working or had ever worked for […]
Evaluting a DBA
Steve has a few thoughts on hiring and the way in which you might want to evaluate a DBA candidate.
Azure Databricks Access Controls and Row Level Security
Azure Databricks has a number of Access Controls and Row Level Security options that we will explore in this article.
Branching and Merging in Database Development using Flyway
How to exploit the branching and merging capabilities of Git for scaling up team-based development, when doing Flyway migrations.
Handling Row-level Errors in ADF Data Flows
If you are working with ADF (Azure Data Factory) data flows, then you may have noticed there was a new feature released in November 2020, which is useful to capture any error while inserting/updating the records in a SQL database. This article will describe how to setup the error row handling feature and why it's […]
Tracking, Privacy, and Lots of Data
Apple has implemented some privacy controls for customers, which some advertisers don't like, but Steve agrees with.
Managing SQL Snippet Collections using JSON and PowerShell
Maintain your favorite SQL snippets and queries centrally, using PowerShell to save and update each snippet collection, in JSON, and then converting them into SQL code snippets for SQL Prompt.
SQL Server performance tuning: Nine best practices
SQL Server performance tuning can seem overwhelming when you don’t know where to start. In this article Robert Sheldon explains 9 best practices for performance tuning.
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...
Alamat Kontak Resmi BCA KCP Kertajaya ??/Wa 08218154393
WA:08218154393 Jl. Kertajaya No.35, Airlangga, Kec. Gubeng, Surabaya, Jawa Timur 60281
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...
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