Azure SQL Limitations compared with a SQL Server Enterprise (SQLServerCentral 7/26/2016)

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Azure SQL Limitations compared with a SQL Server Enterprise What's "Actually" going on with that Seek? Redgate’s 2016 Roadmap Using a Lookup Component in SSIS for Surrogate Keys in a Fact table (From the SQLServerCentral Blogs) Another Query to Help Find the Right Event (From the SQLServerCentral Blogs)

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Fibonacci Series in TSQL

The Voice of the DBA

A Buggy Release

I definitely believe in a DevOps process, though a thoughtful, incremental one. I think this is the best way to develop software, whether you release every day or every year. Yes, you can implement DevOps and release once a year. You just end up tracking, testing, communicating, and being ready for that once a year release. Of course, I bet you don't release once a year since I'm sure you'll patch the system at least once.

One of the core principles of DevOps is to use automation where you can. Remove humans and ensure that repeatability is possible for moving software from one machine to the other. Communicate, test, and then alter your process to work better. This requires the monitoring and input of humans to examine the process, but they shouldn't be involved in deployments other than approving them. It's too easy for an individual to make a mistake.

However, DevOps isn't a panacea for building better software. Witness the issues at Knight Capital, where they went from having $364mm in assets to losing $460mm in 45 minutes. Mostly because of a problem deployment, where an engineer didn't deploy code to all the servers in their farm. Certainly a clean deployment to every system might have prevented this, but the reuse of old flags in code is problematic, as is leaving old code around that could be executed.

In addition to moving to a DevOps mindset, I'd also say that you should be sure that you follow good software development practices as well. Clean out old code (including database code) and be very, very careful about reusing any part of your software, including flags, for a new purpose. It's far, far too easy to make mistakes here.

Steve Jones from SQLServerCentral.com

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Today's Question (by Brett Shearer):

What happens when the following four statements are run?

create database [ ] -- 2 spaces create database [ ] -- 1 space drop database [ ] -- 1 space drop database [ ] -- 2 spaces

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SQL Server T-SQL Recipes

SQL Server T-SQL Recipes is an example-based guide to the Transact-SQL language that is at the core of SQL Server. This edition has been lightly updated for SQL Server 2014 and provides ready-to-implement solutions to common programming and database administration tasks. Learn to create databases, create in-memory tables and stored procedures, insert and update data, generate reports, secure your data, and more. Get your copy from Amazon today.

Yesterday's Question of the Day

Yesterday's Question (by Shiva N):

What is the output of this T-SQL?

SELECT COUNT(*) , COUNT(10) , COUNT(1);

Answer: 1,1,1

Explanation:

The answer is: 1,1,1. An aggregate funciton will work successfully without using any from clause and table. In this case, the count of each of these items is 1 item.

Ref: COUNT - https://msdn.microsoft.com/en-us/library/ms175997.aspx

» Discuss this question and answer on the forums

Featured Script

Fibonacci Series in TSQL

Vignesh Arulmani from SQLServerCentral.com

This function is used to generate the fibonacci series for given number.

Check this out..

select * from dbo.fn_generate_fibonacciseries(10)

Regards,

Vignesh Arulmani

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The Voice of the DBA

A Buggy Release

The Voice of the DBA Podcast

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