Articles

Technical Article

SQL Server Internals: Reading Pages

The I/O from an instance of the SQL Server Database Engine includes logical and physical reads. A logical read occurs every time the Database Engine requests a page from the buffer cache. If the page is not currently in the buffer cache, a physical read first copies the page from disk into the cache.

You rated this post out of 5. Change rating

2022-10-17

External Article

Finding the Version of a Flyway-managed Database Using SQL

Maintaining a version of a database opens a lot of possibilities, especially if an automated process can easily grab the current version, at runtime, using just SQL. You might, for example, have a routine that is only appropriate after a particular version. It is also very handy to be able to associate entries in an event log or bug report with the database version. No more desultory quests, when dealing with support issues, or when bug fixing, to find which database version was running when the bug happened.

2022-10-14

Blogs

Implement a RAG Solution Using Azure SQL Database

By

AI and ChatGPT are all the rage these days.  Seems like around every corner...

2024 PASS Data Community Summit Prep

By

Next week is the 2024 PASS Data Community Summit in Seattle. I’ll be traveling...

A New Word: Bye-over

By

bye-over – n.  the sheepish casual vibe between two people who’ve shred an emotional...

Read the latest Blogs

Forums

PASS Summit Time

By Louis Davidson (@drsql)

Comments posted to this topic are about the item PASS Summit Time

database restore chain

By sqlfriend

I have a backup of full, differential and transaction log setup for our database....

Temporary Table Problem

By fk.da

Hello everyone, I hope you can help me. I have a table with measurement...

Visit the forum

Question of the Day

Incremental Statistics

I have run this on SQL Server 2022 for the Sales database:

ALTER DATABASE Sales SET AUTO_CREATE_STATISTICS ON (INCREMENTAL = ON)
I then run this in the Sales database:
USE Sales
GO
CREATE STATISTICS CustomerStats1 ON dbo.Customer (CustomerKey, EmailAddress) WITH INCREMENTAL = OFF
The dbo.Customer table is partitioned. How are statistics created?

See possible answers