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Technical Article

Be Prepared

Today we have a guest editorial from Grant Fritchey. The Boy Scouts motto is "be prepared" and most of you probably unconsciously follow that in your daily lives. Why is it that so many of us don't follow through on this same advice with our databases? Grant Fritchey gives a few examples of how you should "be prepared" for a database emergency.

Technical Article

Be Prepared

Today we have a guest editorial from Grant Fritchey. The Boy Scouts motto is "be prepared" and most of you probably unconsciously follow that in your daily lives. Why is it that so many of us don't follow through on this same advice with our databases? Grant Fritchey gives a few examples of how you should "be prepared" for a database emergency.

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

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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