The core functionality of Apache Spark has support for structured streaming using either a batch or a continuous method. The two most popular sources of input data are data lake files and Kafka events. Check point files in the data lake are used to keep track of what data has been processed to date.
2025-03-14
The documentation cautions that cumulative updates (CU) could fail if a specific registry key isn’t updated after moving the master files, so I wanted to test this before I spent too much time configuring the server.
2025-03-12
In the December 2023 Microsoft Power BI Desktop release, more than 50 new INFO DAX functions were added. They all start with “INFO.” and return the same result as corresponding data management views (DMVs) that were available before only using a SQL-like syntax. With these new DAX functions, you can use the recently added DAX query to get metadata about your semantic mode
2025-03-10
There are many functions and tools available to database professionals that can solve data math challenges, regardless of complexity.
2025-03-07
SQL 2022 introduced the function generate_series which permits us to solve problems for which we previously had to use a table of numbers (also known as a "tally table"). generate_series is a great addition, because when using a table of numbers there was always a risk that you could run out of numbers. Or some joker could have deleted rows from the table. All these worries are gone with generate_series.
2025-03-05
Do you wonder why SQL Server ignores an index? Do you think about how you can deal with this problem? When you include too many columns in a query you decrease index selectivity. So, if you write a query like “Select * From …” the chance of choosing your nonclustered index will decrease.
2025-03-03
In this article, we look at how to create a SQL backup to network share or restore a backup from a network share.
2025-02-28
How can we get familiar with Azure Databricks with Spark Dataframes?
2025-02-26
Let’s get a little nerdy and look at database internals.
2025-02-24
There will come as time when you need to upgrade the host operating system and SQL Server to a newer version. If you are using SQL Server Integration Services (SSIS), one of the things you may need to do is to move the SSIS catalog (SSISDB database) to the new server. We will cover the steps in this tutorial to migrate the SSISDB from one server to another.
2025-02-21
By Vinay Thakur
RAG — Retrieval Augmented Generation. we have covered so far — embeddings, vectors, vector...
By Vinay Thakur
Continuing from Day 6 we learned Embeddings, Semantic Search and Checks, on Day 7...
By Vinay Thakur
Continuing from Day 5 where we covered notebooks, HuggingFace and fine tuning AI now...
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I am doing development work on a database and want to keep a backup so I can reset my database. I make some changes and want to restore over top of my changes. When I run this code, what happens?
USE Master BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO USE DNRTest GO CREATE TABLE MyTest(myid INT) GO USE master RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACESee possible answers