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.
Google recently unveiled a dashboard to allow users to manage the data that Google stores about them. Including removing search data! Steve Jones comments on the possibility of implementing this for other companies.
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.
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.
The Problem
SQL Server is a huge product with lots of moving parts. Bugs happen. Microsoft has a place to voice...
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.
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.
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.
Should we evolve the database mirroring technology to work with multiple mirrors? Steve Jones says this might be an interesting idea.
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.
By James Serra
I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...
By Vinay Thakur
Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...
Quite the title, so let me set the stage first. You have an Azure...
hi everyone I am not sure how to write the query that will produce...
Comments posted to this topic are about the item Rollback vs. Roll Forward
Comments posted to this topic are about the item Foreign Keys - Foes or...
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers