SQLServerCentral Editorial

Limits, Not Goals

I just saw one of "those" questions. You know the ones: 'We're hitting an error with a stored procedure. What is the maximum number of parameters you can have?" <sigh> Look, I get it. Breaking the land speed record is cool. Getting the most people into a phone booth (look it up), also cool. Fastest, […]

Technical Article

Fun with PowerShell Asynchronous

Imagine a candle that is lit and takes 1 hour to burn out. Now imagine one hundred candles. How many hours will it last? That depends. If they are lit simultaneously, it will take 1 hour. That is the basic idea of running in the background or asynchronously. Of course, the 100 candles can execute independently of one another, unlike if you try to run 100 processes on a computer with 2 cores. PowerShell has some ways to manage that, as PowerShell job – which we will see in this article – runspaces – needs to add programmable using .net.

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Restoring On Top II

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Question of the Day

Restoring On Top II

I have a database, DNRTest, that has a number of tables and other objects in it. The other day, I was trying to mock up a test and ran this code on the same server:

-- run yesterday
CREATE DATABASE DNRTest2
GO
USE DNRTest2
GO
CREATE TABLE NewTable (id INT)
GO
Today, I realize that I need a copy of DNRTest for another mockup, and I run this:
-- run today
USE Master
BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak'
GO
RESTORE DATABASE DNRTest2 FROM DISK = 'dnrtest.bak' WITH REPLACE
What happens?

See possible answers