SQL COUNT between dates in two different column
20,343
Solution 1
Looks like you need to use a basic COUNT
aggregate:
SELECT COUNT(Student)
FROM YourTable
WHERE Start >= @Start
AND End <= @End
I've used >= and <= respectively around the start and end date fields. Feel free to change to > or < as needed. It was unclear from your question whether you wanted between a specific field or if you were checking for a range between those two fields.
Solution 2
Use the between Operator and COUNT aggregate function
SELECT COUNT(student) column_name(s)
FROM table_name
WHERE column_name
BETWEEN value1 AND value2
Between can be used with text so insert the dates where the values are,
Read more here if you still don't understand
EDIT : That should work, sorry about the error
http://www.w3schools.com/sql/sql_between.asp
Author by
jdidi
Updated on May 06, 2020Comments
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jdidi almost 4 years
Let's say, we have this table:
STUDENT | START | END 1 |1998-1-1 |2001-1-1 2 |1999-1-1 |2001-1-1 3 |2000-1-1 |2004-1-1 4 |2000-1-1 | NULL
I'm trying to do is:
Count number of students between start and end dates!
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Bohemian almost 11 yearsWhat do you mean "between" dates? Do you mean a given date is between start and end, or a given date range "overlaps" the start and end? Or something else?
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jdidi almost 11 yearsI wanted sql that count student who started between dates and count student who ended study between dates.
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Yaroslav almost 11 yearsWhat the OP wants is to
Count number of students between start and end dates
. Your answer just return a set of rows.