Blog Posts

Blog Post

ASF 031: Paul Andrew interview

Introduction Paul Andrew. Principal consultant and architect at Altius specialising in big data solutions on the Microsoft Azure cloud platform. Data engineering competencies include Azure Data Factory, Data Lake,...

2020-05-20 (first published: )

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Blog Post

Query Acceleration for ADLS

Just announced is Query Acceleration for Azure Data Lake Storage Gen2 (ADLS) as well as Blob Storage. This is a new capability for ADLS that enables applications and analytics...

2020-05-20 (first published: )

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Blogs

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Adding new column with DEFAULT II

By Thomas Franz

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Advanced Deployment Scenarios: Stairway to Reliable Database Deployments Level 7

By Massimo Preitano

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You Need a DBA Pipeline

By Steve Jones - SSC Editor

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

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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