Free SQL Book!!!
Akeel Din has written an introductory SQL book that is available for free in PDF form. It's also available in print from Amazon if you like holding something real in your hands.
2004-09-28
6,070 reads
Additional Articles
Difference between dates: Time Format
This function returns the difference between dates in the HH:MM:SS format.
2004-09-27 (first published: 2004-03-08)
110 reads
Dimensional Databases: Building A Data Warehouse
A basic look at how you can start to build a data warehouse. This has some basics you need to do the design of the various fact and dimension tables.
2004-09-27
5,004 reads
2004-09-25
78 reads
2004-09-25
60 reads
2004-09-25
583 reads
2004-09-25
79 reads
spilt function
Many a times we need to split a string into its indivisual words and return a array like the Split function of Visal Basic which accepts a delimeter. Here is a script which assumes the delimeter to be the space character and works in a similar method.
2004-09-24 (first published: 2004-03-25)
156 reads
Not All SQL Server Indexes Are Created Equal
Just because a column has an index doesn't mean the SQL Server Query Analyzer will use it. Learn how to create indexes SQL Server will use.
2004-09-24 (first published: 2001-04-22)
4,826 reads
Systems Thinking
J.D. Edwards was big on Systems Thinking, a way of looking at your systems and improving their functions. It was applied it to IT to become one of the top IT organizations to work for. Read some of these articles for an overview of how this works.
2004-09-24
2,685 reads
Blogs
AI: Blog a Day – Day 8: RAG – Retrieval Augmented Generation
By Vinay Thakur
RAG — Retrieval Augmented Generation. we have covered so far — embeddings, vectors, vector...
AI: Blog a Day – Day 7: Vector and Vector Databases
By Vinay Thakur
Continuing from Day 6 we learned Embeddings, Semantic Search and Checks, on Day 7...
AI: Blog a Day – Day 6: Embeddings – How AI Understands
By Vinay Thakur
Continuing from Day 5 where we covered notebooks, HuggingFace and fine tuning AI now...
Forums
Not Just an Upgrade
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Restoring On Top I
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Designing Delta Tables with Liquid Clustering: Real-World Patterns for Data Engineers
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Question of the Day
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