KiahCuran

Kiah Curan is a seasoned academic writing specialist at Online Assignment Help, known for her expertise in crafting high-quality essays, assignments, and research projects across various disciplines. With a deep commitment to helping students succeed, Kiah offers personalized guidance on everything from basic homework support to complex dissertations and business proposals. Her approach is marked by a strong focus on clarity, originality, and academic rigor, making her a trusted resource for students aiming to excel. Kiah’s dedication to student success and her attention to detail have earned her consistent praise, solidifying her reputation as a valuable asset to the Online Assignment Help team.
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Adding new column with DEFAULT II

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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

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