Why this code is not executint

Question

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-- 2/.Find all Male employees born from 1962 to 1970 and their hire date greater than 2001
----and all Female employees born between 1972 to 1975 and their hire date between 2001/2002.

select*
From[HumanResources].[Employee]
Where [Gender]='M'and year([BirthDate]) between 1962 and 1970
and year([HireDate])>2001 and
[Gender]='F'and year([BirthDate]) between 1972 and 1975
and year([HireDate])between 2001 and 2002

What I have tried:

select*
From[HumanResources].[Employee]
Where [Gender]='M'and year([BirthDate]) between 1962 and 1970
and year([HireDate])>2001 and
[Gender]='F'and year([BirthDate]) between 1972 and 1975
and year([HireDate])between 2001 and 2002

Posted 22-Nov-17 22:29pm

kasigwa

Updated 22-Nov-17 23:01pm

OriginalGriff

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Laxmidhar tatwa technologies 25-Nov-17 4:06am

the data type of BirthDate in thes case should be int

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OriginalGriff · Answer 1 · 2017-11-22T23:01:00

Because AND requires both sides of the expression to be true in order for teh result to be true.
Let's simplify your query a bit:

SQL

SELECT  *  FROM [HumanResources].[Employee]
WHERE [Gender]='M' AND [Gender]='F'

Since Gender cannot be both M and F at ethe same time, no rows are returned.
I suspect you want something like this:

SQL

SELECT * FROM [HumanResources].[Employee]
WHERE 
   (    [Gender]='M' 
    AND YEAR([BirthDate]) BETWEEN 1962 AND 1970 
    AND YEAR([HireDate]) >2001
   ) OR
   (    [Gender]='F'
    AND YEAR([BirthDate]) between 1972 and 1975
    AND YEAR([HireDate])between 2001 and 2002
   )