Editorial - WMV

Technical Article

Life Logging

  • Article

Would you like the idea of capturing everything you do? Audio, video, text, code, a log of your life. A new book from Microsoft Research talks about this and Steve Jones things it could be an interesting capability for your career.

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2009-12-08

702 reads

Technical Article

Communication Issues

  • Article

When you have a team of people working together to manage systems, communication becomes important. Steve Jones notes that a lack of working with each other and letting the rest of the team know what you are doing can cause unnecessary work for others.

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2009-11-23

718 reads

Technical Article

Easy Licenses

  • Article

Software licensing can be complex and confusing. Even in Windows and SQL Server, where hard limits are not enforced, people have problems determining how they should license software. Steve Jones talks about what vendors could do to help us.

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2009-11-18

894 reads

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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