This article isn’t about the act of lock escalation itself, which is already well documented and generally well understood. Some myths (like row locks escalating to page locks) persist, but challenging those yet again probably wouldn’t change much.
2022-09-19
If your database application requires 'static data' to function, then the best way to manage that data is using a view based on a derived table. This article demonstrates ways to create these views, depending on your RDBMS's capabilities, and how to build and manage them in development work, using Flyway and PowerShell.
2022-09-16
In this article, we look at several different examples of how to use the SQL WHERE clause to narrow down searches for data in a SQL Server table.
2022-09-16
Learn how to create SQL Server database tables, foreign keys, and create data to begin building a database to support application development.
2022-09-14
There and pros and cons to building a monitoring system versus purchasing one: in other words, the ROI of build vs. buy. In this blog post, Grant Fritchey discusses when you should build, and when you should buy.
2022-09-14
This article covers how to create multi-chart visualizations in Excel using data from SQL Server.
2022-09-09
Rollback scripts are designed to allow us to recover safely from a failed deployment that leaves the database in an indeterminate state. They must check exactly what needs to be reverted before doing so. If you work with an RDBMS that cannot support transaction DDL rollback they are vital. This article proposes a strategy where you create and test a rollback file, at the same time as the forward migration, and reuse it as a Flyway undo script.
2022-09-09
In this tip, we cover how to use the GENERATE_SERIES function to expand a range of dates into rows
2022-09-07
Use SELECT statements to query a MySQL database. In this article, Robert Sheldon explains how.
2022-09-07
A generic way of exporting, deleting and loading data, for database development work. It uses Flyway Teams, a PowerShell framework, JSON files for storage and a table manifest to define the correct order of dependency for each task. It should help a team maintain datasets between database versions, as well as to switch between the datasets required to support different types of testing.
2022-09-05
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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Comments posted to this topic are about the item Designing Delta Tables with Liquid...
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