AND Operator - (Oracle Misc)
The AND operator is a logical operator in Oracle that returns TRUE if both operands are TRUE, and returns FALSE otherwise. It can be used in a WHERE clause to filter records from a table based on multiple conditions.
Syntax
The syntax for using the AND operator in Oracle is as follows:
SELECT column1, column2, ...
FROM table_name
WHERE condition1 AND condition2 AND condition3 ...;
Here, condition1, condition2, condition3, and so on are the conditions that need to be met for a record to be included in the result set.
Example
Let's consider an example where we have a table called students that contains information about students:
| id | name | age | gender |
|---|---|---|---|
| 1 | John Doe | 20 | M |
| 2 | Jane Doe | 21 | F |
| 3 | Bob Smith | 18 | M |
| 4 | Amy Brown | 22 | F |
| 5 | Tom Lee | 19 | M |
Now let's say we want to get the names of female students who are older than 20. We can use the AND operator in the WHERE clause to filter the records:
SELECT name
FROM students
WHERE age > 20 AND gender = 'F';
Output
| name |
|----------|
| Amy Brown|
Explanation
In the above example, we used the AND operator in the WHERE clause to filter the records based on two conditions: age > 20 and gender = 'F'. Only the record with the name 'Amy Brown' satisfies both conditions, so it is the only record returned in the result set.
Use
The AND operator is typically used in conjunction with other operators, such as the OR operator, and is often used in WHERE clauses to filter records based on multiple conditions.
Important Points
- The AND operator returns TRUE if both operands are TRUE, and returns FALSE otherwise.
- It can be used in the WHERE clause to filter records based on multiple conditions.
- The AND operator is typically used in conjunction with other operators, such as the OR operator.
Summary
In summary, the AND operator is a logical operator in Oracle that returns TRUE if both operands are TRUE, and returns FALSE otherwise. It is often used in the WHERE clause to filter records based on multiple conditions, and is typically used in conjunction with other operators, such as the OR operator.