SQL Server 2017 for Linux First Impressions
Microsoft has released a version of SQL Server 2017 for Linux.
READ COMMITTED SNAPSHOT ISOLATION and High version_ghost_record_count
Developer shops may decide to use Read Committed Snapshot Isolation (RCSI) to reduce contention, and possibly improve performance, but it is not without its own pitfalls. In this article, Uwe Ricken describes a situation where long running transactions caused a severe performance degradation when RCSI was in use.
Ad Hoc Logs
We often make changes to production systems in an ad hoc manner. Steve asks how much auditing we might have in place.
Getting query text from SSMS into a CSV with PowerShell
You have times where you need to copy/paste something out of SSMS' grid view results pane that has a carriage return in it. Trying to copy/paste that data into Excel can be a headache and cause you to waste precious time reformatting. This just offers a tidbit of PowerShell code to help.
Scripting the Description of Database Tables Using Extended Properties
Stored procedures, for example, are very easy to document. The comment block at the beginning stays with the code and a CREATE or ALTER script contains everything to reproduce the proc. SQL Server tables, however, are more difficult to document. You can use Extended Properties to document columns and constraints, but working with Extended Properties is difficult at best. Phil Factor demonstrates ways to easily add Extended Properties to your build scripts.
More SQL Server Updates
Updates this week for SQL 2014, 2016, 2017 and SSMS have Steve thinking about the pace of patching.
The DefaultBufferMaxRows and DefaultBufferSize Properties in SSIS
This article shows how DefaultBufferMaxRows and DefaultBufferSize properties can be used to improve dataflow task performance.
How to Get a Random Row from a Large Table
Brent Ozar takes a look at four different ways to get a random row from a large SQL Server table.
Charles Bachman and Pointer Chains
Joe Celko reminisces about the origins of databases and one of the early pioneers, Charles Bachman. He explains how pointer chains were used to traverse data in the NDL standard and referential integrity that we use today.
Blogs
No Shortcuts for the SQLCMD Batch Terminator: #SQLNewBlogger
By Steve Jones
I was messing around with SQLCMD and I realized something I hadn’t known. I’ve...
Where Is My SQL Agent? Running Scheduled Jobs Against Azure SQL Database
By gbargsley
One of the first things I review when I inherit a new SQL Server...
AgentDBA vs Critical SQL Server
By Arun Sirpal
It’s 07:43. Someone’s already left a message. “Something’s wrong with the DB server.” You...
Forums
Increment a number in a SQL Query based on a value
I have an issue where I have a Bill of Material list of items...
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Question of the Day
Detecting Characters
I have a SQL Server 2022 English default installation on a server. I want to detect if there are any upper case characters in rows and I have this code:
SELECT CustomerNameID,
CustomerName
FROM dbo.CustomerName
WHERE CustomerName = LOWER(CustomerName)
Here is the sample data I am testing with:
CustomerNameID CustomerName 1 John Smith 2 Sarah Johnson 3 MICHAEL WILLIAMS 4 JENNIFER BROWN 5 david jones 6 emily davis 7 Robert Miller 8 LISA WILSON 9 christopher moore 10 Amanda TaylorHow many rows are returned? See possible answers