SQL Community n Speaking Assignments
Dear All,
It has been a while since I became less active on this blog. Reason for the same being that,...
2016-06-12
398 reads
Nagaraj Venkatesan
Cardinality Estimator - Part 2- Out of Date Statistics
Continuing from our series on Cardinality Estimator 2014, Let us look at the first difference between 2 CE models. The...
2016-04-21 (first published: 2016-04-12)
2,009 reads
SQL Server 2014 - Cardinality Estimator - Part 1
It has been a while since I blogged. Just moved to few other mediums like speaking at user group and...
2016-04-03
699 reads
SQL Server Statistics - Histograms
Most of us are aware of Statistics in SQL Server and its purpose. But still, just to get started, statistics...
2016-01-25 (first published: 2016-01-13)
3,208 reads
In-Memory OLTP Table Checkpoint Processes Performance Comparison
Checkpoint processes and other internal processes have undergone major changes for In Memory OLTP tables and transactions. The following article...
2015-11-18
686 reads
Hekaton Part 11 :- Finding row count in memory table
Finding a row count in a "in memory" Hekaton table can be a tricky task as the regular commands and...
2015-11-06
938 reads
Hekaton Part 10: Things Hash Indexes Can do
Hash Indexes on "In memory" tables are best suited for equality searches. Reason is obvious, as they are based on...
2015-11-02
488 reads
Hekaton Part 9: Things Hash Indexes can't do
Last few posts have explored hash indexes in depth. This one will deal with the limitations on Hash Indexes. What...
2015-10-25
401 reads
Hekaton Part 8 - Hash Collisions - Hash_Index_Stats DMV
Continuing from previous post , this post will discuss a few scenarios on hash collisions.
The following "in memory" table with a hash...
2015-10-11
593 reads
Hekaton Part 7 - Hash Collisions & Hash Buckets
As explained in the earlier post, a hash index places pointers to the rows in hash buckets, depending upon the value returned...
2015-09-15
694 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
Comments posted to this topic are about the item Not Just an Upgrade
Restoring On Top I
Comments posted to this topic are about the item Restoring On Top I
Designing Delta Tables with Liquid Clustering: Real-World Patterns for Data Engineers
Comments posted to this topic are about the item Designing Delta Tables with Liquid...
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