Does MS SQL Server's “between” include the range boundaries?

Question

For instance can

SELECT foo
FROM bar
WHERE foo BETWEEN 5 AND 10

select 5 and 10 or they are excluded from the range?

Answer 1

Real world example from SQL Server 2008.

Source data:

ID    Start
1     2010-04-30 00:00:01.000
2     2010-04-02 00:00:00.000
3     2010-05-01 00:00:00.000
4     2010-07-31 00:00:00.000

Query:

SELECT
    *
FROM
    tbl
WHERE
    Start BETWEEN '2010-04-01 00:00:00' AND '2010-05-01 00:00:00'

Results:

ID    Start
1     2010-04-30 00:00:01.000
2     2010-04-02 00:00:00.000

Answer 2

BETWEEN (Transact-SQL)

Specifies a(n) (inclusive) range to test.

test_expression [ NOT ] BETWEEN begin_expression AND end_expression

Arguments

test_expression

Is the expression to test for in the range defined by begin_expression and end_expression. test_expression must be the same data type as both begin_expression and end_expression.

NOT

Specifies that the result of the predicate be negated.

begin_expression

Is any valid expression. begin_expression must be the same data type as both test_expression and end_expression.

end_expression

Is any valid expression. end_expression must be the same data type as both test_expression and begin_expression.

AND

Acts as a placeholder that indicates test_expression should be within the range indicated by begin_expression and end_expression.

Remarks

To specify an exclusive range, use the greater than (>) and less than operators (<). If any input to the BETWEEN or NOT BETWEEN predicate is NULL, the result is UNKNOWN.

Result Value

BETWEEN returns TRUE if the value of test_expression is greater than or equal to the value of begin_expression and less than or equal to the value of end_expression.

NOT BETWEEN returns TRUE if the value of test_expression is less than the value of begin_expression or greater than the value of end_expression.