Description
The SQL provides the ANY and ALL operators to compare a single column value against a range of other values.
- The operator ANY returns TRUE if any of the subquery values meet the condition.
- The operator ALL returns TRUE if all of the subquery values meet the condition.
- The comparison operator must be a standard comparison operator, like
=
,<
,>
,<=
,>=
,<>
,!=
, etc., - These operators can be used only on SELECT statements, within the WHERE and HAVING clauses that define conditions.
Let's look at an example of a SELECT statement using ANY operator, to compare a column value against a set of other values from a subquery.
Table Data
Before executing any queries, consider the below data on the tables.
Customers Table Data
customer_id | customer_name | address | city | country | postal_code |
1 | Maria Anders | Obere Str. 57 | Berlin | Germany | 12209 |
2 | Fran Wilson | C/ Araquil, 67 | Madrid | Spain | 28023 |
3 | Dominique Perrier | 25, rue Lauriston | Paris | France | 75016 |
4 | Martin Blank | Via Monte Bianco 34 | Turin | Italy | 10100 |
5 | Thomas Hardy | 89 Chiaroscuro Rd. | Portland | USA | 97219 |
Orders Table Data
order_id | order_date | order_value | customer_id | shipper_id |
10250 | 2014-07-05 | 1807.5 | 1 | 3 |
10251 | 2014-07-15 | 1159 | 2 | 2 |
10252 | 2014-07-18 | 2822 | 3 | 3 |
10253 | 2014-07-19 | 2575.3 | 4 | 2 |
10254 | 2014-07-24 | 1256.25 | 5 | 3 |
10255 | 2014-07-31 | 9247.5 | 1 | 1 |
Example
The below SELECT statement returns the customers, having a customer ID that is equal to any of the customer IDs returned by the inner query.
- The inner SELECT statement returns customer IDs from the orders table, having an order value of more than 2000. So, it returns the customers having ID values 1, 3, and 4.
- The outer SELECT statement returns customers, having customer ID equal to any of the 1, 3, and 4. So, it returns all the three customers having those IDs.
SELECT *
FROM customers
WHERE customer_id = ANY (SELECT customer_id FROM orders WHERE order_value > 2000);
After successful execution, the output contains the below data.
customer_id | customer_name | address | city | country | postal_code |
1 | Maria Anders | Obere Str. 57 | Berlin | Germany | 12209 |
3 | Dominique Perrier | 25, rue Lauriston | Paris | France | 75016 |
4 | Martin Blank | Via Monte Bianco 34 | Turin | Italy | 10100 |
Overall
We now know how to compare a single column value against a range of other values in a SELECT statement using ANY operator.