Compression and its Effects on Performance
Erin Stellato takes a look at the new COMPRESS and DECOMPRESS functions, comparing their impact on space and performance to traditional data compression.
2017-02-15
6,456 reads
Additional Articles
Office Hours Webcast 2017/02/01
In this edition of Office Hours, Brent, Erik, and Richie discuss AlwaysOn Availability Groups, execution plans, speeding up log shipping, applying wrong service packs, their favourite high availability solutions, and more.
2017-02-14
3,764 reads
How to Build Your First SQL Server Virtual Lab in Windows Azure
If you are a DBA who hasn't so far dived in head-first into using Azure, it is worth setting up an Azure 'Virtual Lab' environment the easy way, using a template. This will then allow you to experiment, try things out with SQL Azure, and get familiar with Resource Groups. Joshua shows how to build a virtual lab, from the ground up in the first of a series that aims to give you a grounding in Azure.
2017-02-13
5,534 reads
Reconciling Data Across Systems Using a Reconciliation Hub
In many enterprises, where there are a number of separate systems engaged in processing data, there arises the daunting task of checking and reconciling data as it flows between systems. Discrepancies in data must be detected, tracked and corrected as quickly as possible: there is no room for error in doing this. A Reconciliation Hub can provide the answer, as Rahul Gupta explains.
2017-02-10
3,524 reads
How Incorrect SQL Server Table Statistic Estimates Can Cause Slow Query Execution
Ben Snaidero explains that if you are updating your SQL Server table statistics nightly, but still seeing occasional poor performance with some of the queries being executed against my database, statistics could be the issue.
2017-02-09
4,089 reads
Simple Row Level Security for SQL Server 2016
Have you ever had a need to place some simple row level security on a SQL Server table? Well now you can do that in SQL Server 2016 by...
2017-02-08
6,513 reads
Determining What Happens When You Force an Execution Plan via the Query Store
When you force a query plan via the Query Store, you will need to track what happens: Sometimes the request to force a plan will fail, and you will want to know when and why. There are several ways of getting feedback, ranging from the built-in reports to using extended events. Enrico explains the details.
2017-02-07
3,584 reads
Estimated Number of Rows to be Read
Rob Farley uses this month's T-SQL Tuesday to show off the results of one of his Connect items : Estimated Number of Rows to be Read.
2017-02-06
3,839 reads
PowerShell Invoke-SQLCmd outputs DataTables you can INSERT into SQL Server
Aaron Nelson explains how you can take an existing SQL query, run it against a SQL Server and then take the results and save them to a different SQL Server without using Linked Servers.
2017-02-03
5,215 reads
Using A Block Predicate to Restrict Row Updates and Inserts
If you are using row level security in SQL Server 2016 you might find users are updating or inserting rows of data that keep them from seeing the row after they have performed the update or insert statement. If you want to prevent this from occurring, you can use a blocking predicate.
2017-02-02
6,585 reads
Blogs
SQL Server Journey Part 2: Modern Era (2017 – 2026) – AI/Cloud First
By Vinay Thakur
Following up on my Part 1 baseline, the journey from 2017 onward changed how...
Google Moves Up Post-Quantum Cryptography Timeline
By Brian Kelley
In cryptography, the RSA and ECC algorithms which we use primarily for asymmetric cryptography...
The Book of Redgate: No Politics
By Steve Jones
In today’s world, this might mean something different, but in 2010, we had this...
Forums
Auto Update Statistics not triggering on filtered indexes
I've got a table with 186,703,969 rows, about 300GB of data. There are several...
What is the difference between SQL Server and SQL Database?
I created a SQL Database in Azure Portal but I've just noticed it also...
An Unusual Identity
Comments posted to this topic are about the item An Unusual Identity
Question of the Day
An Unusual Identity
What values are returned when I run this code?
CREATE TABLE dbo.IdentityTest2
(
id NUMERIC(10,0) IDENTITY(10,10) PRIMARY KEY,
somevalue VARCHAR(20)
)
GO
INSERT dbo.IdentityTest2
(
somevalue
)
VALUES
( 'Steve')
, ('Bill')
GO
SELECT top 10
id
FROM dbo.IdentityTest2 See possible answers