SQL Server impersonation, or context switching, is a means to allow the executing user to assume the permissions of a given user or login until the context is set back, set to yet another user, or the session is ended. Deanna Dicken shows you two mechanisms for accomplishing this task and walks through some examples.
2010-02-25
2,388 reads
There are a number of events coming up in 2010 that need speakers to share their knowledge of SQL Server with others. Check out this list and consider submitting something.
2010-02-24
441 reads
This technical note describes the consolidation options, considerations, and best practices for Microsoft® SQL Server® 2008 Analysis Services that the SQL CAT team has derived from working with Analysis Services customers. In this technical note, we also discuss an Analysis Services load balancer solution that one of our internal customers uses to load balance queries from Microsoft Excel® and SQL Server Reporting Services clients across multiple query servers to increase query performance and provide availability.
2010-02-24
1,994 reads
The Problem
SQL Server is a huge product with lots of moving parts. Bugs happen. Microsoft has a place to voice...
2010-02-24
2,200 reads
Come to this great one day training event in Philadelphia, PA. SQL Saturday is a great way to get free training on all aspects of SQL Server.
2010-02-24 (first published: 2010-02-04)
2,952 reads
Tutorial on using Script Component, Regular Expression and derived Column Transform to dynamically map different source column types into the appropriate target column for address data.
2010-02-23
3,340 reads
Part 3 of this series, Shahfaisal Muhammed brings a common method of deploying your SSAS projects to a new server: backup and restore. The rest of the series covers other methods.
2010-02-23
3,848 reads
Learn about SQL Server 2008 Reporting Services with this new title from Wiley. We have a sample chapter you can read to see if you like this book.
2010-02-23
2,832 reads
Many companies have a very rigid development lifecycle for all products or solutions they develop. Deploying to each of these...
2010-02-23
3,142 reads
This tip is intended to help someone who is or will be facing a no free buffer found issue with the SQL Server LazyWriter. Recently, we experienced some unknown issues with our SQL Server and after inspecting the error log file we noticed the following errors: "SQL Server has encountered 50 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file..." and "LazyWriter: warning, no free buffers found." These error messages were followed by a SQL Server memory dump file like SQLDump0030.mdmp in the file system.
2010-02-23
2,484 reads
Slow-running queries can degrade your Redshift cluster’s performance and lead to increased costs. Identifying...
By gbargsley
If you've been here before, you know this blog is usually about SQL Server,...
I’ve been doing storage load tests for SQL Server for a long time, both...
Comments posted to this topic are about the item How Long is a Long...
Comments posted to this topic are about the item T-SQL Trigonometric Functions in SQL...
Comments posted to this topic are about the item Half of All Engineers
In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?
See possible answers