Blog Post

Kusto Detective Agency - Intro

While I mostly write about SQL Server, I have a soft spot for Kusto. In this series, I will explore solutions to fun challenges collectively known as the Kusto...

2025-04-27 (first published: )

119 reads

Blog Post

Using Cron in Postgres Flex

pg_cron is a simple cron-based job scheduler for PostgreSQL that runs inside the database as an extension. It allows you to schedule PostgreSQL commands directly from your database, similar...

2025-05-19 (first published: )

414 reads

Blog Post

SQL Server Index Primer

Indexes 101: What, Why, and When? “What Is an Index?” I get this question a lot, especially from developers and sysadmins who’ve been handed a SQL Server and told,...

2025-05-12 (first published: )

274 reads

Blogs

Measuring RAG Solutions: Are We Retrieving the Right Information?

By

A RAG pipeline that answers questions in the demo is not the same thing...

Advice I Like: Lots of Ideas

By

“A multitude of bad ideas is necessary for one good idea” – from Excellent...

Building a DBA Agent for Your SQL Server Estate with MCP

By

Yesterday I gave a talk for MSSQLTips called “Building a DBA Agent for Your...

Read the latest Blogs

Forums

Adding new column with DEFAULT

By Thomas Franz

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

How do I connect to a SQL Server database on my ISP?

By Doctor Who 2

I've got a web application for my side business. I've added a SQL Server...

Looking for New Blood

By Grant Fritchey

Comments posted to this topic are about the item Looking for New Blood

Visit the forum

Question of the Day

Adding new column with DEFAULT

Which number will the COUNT() return after executing the following statements:

DROP TABLE IF EXISTS #test;
CREATE TABLE #test (id INT)
INSERT INTO #test (id)
SELECT *
  FROM GENERATE_SERIES(1, 3) AS gs
;

ALTER TABLE #test ADD flag BIT CONSTRAINT DF_#test_flag DEFAULT 0;
go
UPDATE #test SET flag = 0 WHERE id = 1
UPDATE #test SET flag = 1 WHERE id = 2

INSERT INTO #test (id) VALUES (4)

SELECT COUNT(*)
  FROM #test AS t
 WHERE flag = 0
 

See possible answers