Technical Article

IsDateAHoliday UDF

This is a User Defined Function that returns a 1 if date is a holiday else, it returns a 0.The holidays are:New years Day, MLK Day, Presidents Day, Memorial Day, Independance Day, Labor Day, Columbus Day, Veterans Day, Christmas Eve and Christmas Day

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2005-06-13 (first published: )

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Technical Article

IsDateAHoliday UDF **NEW**

This is a replacement script for the first IsDateAHoliday. The first one was too slow and inefficient. This one is much better. Enjoy.IsDateAHoliday is a User Defined Function that accepts a date and returns a 1 if date is a national holiday and returns a 0 otherwise.The holidays are:New years Day, MLK Day, Presidents Day, […]

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2005-06-03

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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