Andy Warren

I started my SQL journey here at SQLServerCentral as one of the founders, helping to build a place to share and learn that continues to thrive under the editorial guidance of my friend Steve Jones. I've done a lot of volunteer work over the years ranging from our local SQL group (oPASS, SQLOrlando) to serving on the Board of Directors of PASS to designing and building the framework of SQLSaturday (which has gone on to produce more than 1000 locally managed events since we started in 2007). These days I manage a DBA team, but over the years I've been a trainer, consultant, contractor, and DBA. I'm rarely present on social media, the best way to contact me is here, LinkedIn, or via email.

All authors

Blog Post

Speaking at PASS 2007

I'll be doing a spotlight session called 'Transactional Replication for Beginners' this year. I've been speaking at the Summit since...

2007-05-29

1,377 reads

Blog Post

Book Reviews

I've got a new article running on SSC today with a few more book reviews: http://www.sqlservercentral.com/columnists/awarren/2998.asp.

2007-05-23

1,432 reads

All authors

Blogs

Keeping Track of my ConEmu CLIs

By

I use ConEmu for my terminal interface. I’m still on Windows 10 at home,...

10 Decisions to Make Before You Create A Fabric Workspace

By

Creating a Fabric workspace takes about 30 seconds. Restructuring workspaces after people have built...

Flyway Tips: Object History

By

It’s a small change, but a handy one. Flyway Desktop (FWD) now includes the...

Read the latest Blogs

Forums

Adding new column with DEFAULT II

By Thomas Franz

Comments posted to this topic are about the item Adding new column with DEFAULT...

Advanced Deployment Scenarios: Stairway to Reliable Database Deployments Level 7

By Massimo Preitano

Comments posted to this topic are about the item Advanced Deployment Scenarios: Stairway to...

You Need a DBA Pipeline

By Steve Jones - SSC Editor

Comments posted to this topic are about the item You Need a DBA Pipeline

Visit the forum

Question of the Day

Adding new column with DEFAULT II

Which number did the two COUNT(*) return: 

DROP TABLE IF EXISTS #tmp
CREATE TABLE #tmp (id INT NOT NULL)

INSERT INTO #tmp (id) 
SELECT gs.value
  FROM GENERATE_SERIES(1, 5) AS gs

ALTER TABLE #tmp ADD my_value INT NOT NULL CONSTRAINT df_tmp_my_value DEFAULT 1

SELECT COUNT(*)  FROM #tmp AS t WHERE my_value = 1

ALTER TABLE #tmp DROP CONSTRAINT df_tmp_my_value

ALTER TABLE #tmp ADD CONSTRAINT df_tmp_my_value DEFAULT 2 FOR my_value

SELECT COUNT(*)  FROM #tmp AS t WHERE my_value = 1

See possible answers