SQL BETWEEN Operator
The BETWEEN operator is used in a WHERE clause to select a range of data between two values.
The BETWEEN Operator
The BETWEEN operator selects a range of data between two values. The values can be numbers, text, or dates.
SQL BETWEEN Syntax
SELECT column_name(s)
FROM table_name
WHERE column_name
BETWEEN value1 AND value2 |
BETWEEN Operator Example
The "Persons" table:
P_Id |
LastName |
FirstName |
Address |
City |
1 |
Hansen |
Ola |
Timoteivn 10 |
Sandnes |
2 |
Svendson |
Tove |
Borgvn 23 |
Sandnes |
3 |
Pettersen |
Kari |
Storgt 20 |
Stavanger |
Now we want to select the persons with a last name alphabetically between "Hansen" and "Pettersen" from the table above.
We use the following SELECT statement:
SELECT * FROM Persons
WHERE LastName
BETWEEN 'Hansen' AND 'Pettersen' |
The result-set will look like this:
P_Id |
LastName |
FirstName |
Address |
City |
1 |
Hansen |
Ola |
Timoteivn 10 |
Sandnes |
Note: The BETWEEN operator is treated differently in different databases.
In some databases, persons with the LastName of "Hansen" or "Pettersen" will not be listed, because the BETWEEN
operator only selects fields that are between and excluding the test values).
In other databases, persons with the LastName of "Hansen" or "Pettersen" will be listed, because the BETWEEN
operator selects fields that are between and including the test values).
And in other databases, persons with the LastName of "Hansen" will be listed, but "Pettersen" will not be listed
(like the example above), because the BETWEEN operator selects fields between the test values, including the first test value and excluding the
last test value.
Therefore: Check how your database treats the BETWEEN operator.
Example 2
To display the persons outside the range in the previous example, use NOT BETWEEN:
SELECT * FROM Persons
WHERE LastName
NOT BETWEEN 'Hansen' AND 'Pettersen' |
The result-set will look like this:
P_Id |
LastName |
FirstName |
Address |
City |
2 |
Svendson |
Tove |
Borgvn 23 |
Sandnes |
3 |
Pettersen |
Kari |
Storgt 20 |
Stavanger |
|