Editorial - WMV

Technical Article

Guest Editorial: That ain't a Database, it's a Spreadsheet

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Phil recently had to draw up a list of 'top ten' pieces of advice for programmers who were starting out as database developers. It is a difficult thing to do when one is immersed in the study of the intricacies and detail of the plumbing of SQL Server.

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2008-12-16

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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