Understanding SQL WHERE Clause: Filtering Data with Ease

`where` is a keyword in SQL that is used to specify the condition for which rows to include in the result set. It is typically used in conjunction with the `SELECT` statement to filter the data that is returned.

For example, the following query would return all orders where the customer ID is 1234:
```
SELECT * FROM orders WHERE customer_id = 1234;
```
Similarly, the following query would return all orders where the order date is greater than or equal to January 1, 2015:
```
SELECT * FROM orders WHERE order_date >= '2015-01-01';
```
You can also use `WHERE` in combination with other clauses, such as `JOIN`, `GROUP BY`, and `ORDER BY`, to further refine the data that is returned.

For example, the following query would return all orders where the customer ID is 1234 and the order date is greater than or equal to January 1, 2015, and the order status is "shipped":
```
SELECT * FROM orders WHERE customer_id = 1234 AND order_date >= '2015-01-01' AND order_status = 'shipped';
```