SQL Server Central Webinar Series #24: Prepare for When Disaster Strikes
Our next webinar on July 23rd has Steve Jones presenting on some disaster stories with ideas on how you might prevent, or mitigate the effects, of those problem situations.
Survey: Understanding SQL Code
Understanding thousands of lines of code of an existing database is very time-consuming and tedious, prone to inadvertent oversight of key logic points. We are looking at advanced ways to provide greater insight into your code base while reducing the numerous demands placed on the developer. Please help us by completing this short survey to help us define the requirements.
Tables and Clustered Indexes Part 2
A table does not so much 'have' a clustered index as a table 'is' a clustered index.
What Counts for a DBA: Baselines
It is very difficult to pinpoint what ails a server, just by looking at a single snapshot of the data, or to spot retrospectively what caused the problem by examining aggregated data for the server, collected over many months. The answer? Baselines.
SQL Monitor Custom Metric: Top Buffer Cache Object
This metric measures the amount of memory used in the buffer cache by the largest object (based on the number of pages). It checks the sys.dm_os_buffer_descriptors to identify the object, and returns the relative percentage used. You should use this metric if you want to monitor what is in the buffer area, or if you are having performance-related disk read problems.
SQL Server 2012 Analysis Services XMLA
Cube developers often flippantly use the term XMLA in their discussion of maintaining, scripting, backing up, and restoring cubes and other SSAS objects; what exactly is XMLA and how can it be used? Check out this tip to learn more.
DR Failovers
We don't often predict for disasters, which is good since we rarely have extensive plans for dealing with them. If we do, do we actually test our plans, or test the systems under full load?
Formatting Dates with 3 Character Months (SQL Spackle)
Another in the series of articles to help you "fill in the cracks" in your T-SQL knowledge. MVP Jeff Moden shows us a super simple, high performance method to solve this timeless problem.
New Resource: LearnSomeSQL.com
We're trialling a new resource for SQL beginners and we'd like to know what you think.
Disaster Recovery Tip #4 - Learn about partial restores!
Sometimes recovery simply entails rerunning a failed process.
Blogs
T-SQL Tuesday #202 SQL Server Outage You’ll Never Forget: A Roundup
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
A Last Minute Trip to the EU
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
Part 3 of 3: Tuning DiskANN — R, Alpha, L, Beam Width, Recall and Latency
In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...
Forums
Implementing Type 4 Slowly Changing Dimensions in SQL Server
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
The Disabled Index
Comments posted to this topic are about the item The Disabled Index
Server-Level Table sizes
Comments posted to this topic are about the item Server-Level Table sizes
Question of the Day
The Disabled Index
I run this code on SQL Server 2022.
CREATE TABLE Drink
(
drinkid INT NOT NULL
CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
drinkname VARCHAR(20),
rating NUMERIC(2, 1)
)
GO
INSERT INTO Drink
(
drinkid,
drinkname,
rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result? See possible answers