Developer shops may decide to use Read Committed Snapshot Isolation (RCSI) to reduce contention, and possibly improve performance, but it is not without its own pitfalls. In this article, Uwe Ricken describes a situation where long running transactions caused a severe performance degradation when RCSI was in use.
2018-03-26
3,103 reads
Stored procedures, for example, are very easy to document. The comment block at the beginning stays with the code and a CREATE or ALTER script contains everything to reproduce the proc. SQL Server tables, however, are more difficult to document. You can use Extended Properties to document columns and constraints, but working with Extended Properties is difficult at best. Phil Factor demonstrates ways to easily add Extended Properties to your build scripts.
2018-03-23
3,324 reads
Brent Ozar takes a look at four different ways to get a random row from a large SQL Server table.
2018-03-22
5,124 reads
Joe Celko reminisces about the origins of databases and one of the early pioneers, Charles Bachman. He explains how pointer chains were used to traverse data in the NDL standard and referential integrity that we use today.
2018-03-21
2,756 reads
Nat Sundar explains the different ways to load JSON data into SQL Server, along the way also covering the use OpenRowset and OpenJSON functions to manage JSON data effectively.
2018-03-20
4,130 reads
When using Transparent Data Encryption, you might wonder “What is the state of my transparent data encrypted database?” Read on to learn the many different states that a transparent data encrypted database might go through.
2018-03-19
2,510 reads
The key challenge for application developers is to build a foolproof system to ensure data security. This is not only more intense, but more complex these days, as many organizations are planning to move their applications to the cloud. Read on to learn more.
2018-03-16
3,579 reads
In the final article in this series, Robert Sheldon demonstrates combining data sources with multiple formats into one Python data frame.
2018-03-15
3,337 reads
By default, when you run a query in SQL Server, your delete/update/insert (DUI) is finished as soon as your query finishes. That’s because the default behavior of SQL Server is IMPLICIT_TRANSACTIONS OFF – meaning, SQL Server doesn’t hold your queries open waiting for a COMMIT or ROLLBACK.
2018-03-14
3,761 reads
Changing a data type seems like a simple task unless the table is quite large and downtime must be kept to a minimum. Danny Kruge walks you through the process he created to change an INT to a BIGINT in a large table.
2018-03-13
10,620 reads
By Steve Jones
AI is everywhere. It’s in the news, it’s being added to every product, management...
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...
I've written some documentation on using different Markdown types of files on GitHub. It's...
Comments posted to this topic are about the item Not Just an Upgrade
Comments posted to this topic are about the item Restoring On Top I
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