Question of the Month (July)

Suppose we have a table emp_plan  which contains 4 columns "Empid" (employeeid), Planid (Projectid), Startdate(Allocation Start date) and Enddate (Allocation Enddate). Its structure is given below:-

Create table emp_plan (empid nvarchar(200),planid...

2015-08-03

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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
 

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