DBAs Checklist for Designing and Reviewing SQL Server System Architectures
In this tip, Sadequl Hussain will try to list a few areas DBAs need to cover when they are designing new systems or reviewing proposed solutions.
Caching
A SQL Server database can easily be seen as a bottleneck as all data must be retrieved from a single machine. However a caching strategy in your application and alleviate load and improve performance.
Flexible Source Locations - Level 16 of the Stairway to Integration Services
Integration Services can be used to load data from a number of source files stored in different folders. This next level in the Stairway Series for Integration Services shows exactly how you can use parameters, variables and the ForEach Loop Container to do this.
SQL Server Indexed Views: The Basics
Views are a valuable tool for the SQL Server Developer, because they hide complexity and allow for a readable style of SQL expression. They aren't there for reasons of performance, and so indexed views are designed to remedy this shortcoming. They're great in certain circumstances but they represent a trade-off, and they come with considerable 'small print'. Jes Borland explains.
Lawsuits and Data Breaches
Steve Jones notes that a data breach resulted in a lawsuit. How long before that's a common practice, and should we be preparing as data professionals.
San Jose, CA - SQL in the City Seminar - Deployment Stairway
The day before SQL Saturday Silicon Valley, SQL Server MVP Steve Jones will be hosting a free seminar in San Jose on March 14 2014. Join fellow database professionals to learn best practices and practical tips for SQL Server version control, continuous integration and deployment.
Using hash values in SSIS to determine when to insert or update rows
A common method to detect if a row has changed is to compare hashes. Integration Services itself doesn’t have a hash implementation, so in this tip I’ll show how you can implement a hash detection mechanism using a script component, as an alternative to the pure T-SQL solution.
A Quick Tour of sp_ExecuteSQL
sp_ExecuteSQL can be used to dynamically execute T-SQL code. Learn how to use it and how to add parameters to control what code is executed.
Auditing Matters
We might not be able to stop hacks, attacks, or issues with our databases, but knowing that they've occurred is important. Steve Jones notes that we might need auditing more than security.
Blogs
Why sys.fn_dblog Is Undocumented And Why It's Still There
By SQLPals
Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...
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...
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