COMPARISON Operator - ( Oracle Misc )

In Oracle, the comparison operators are used to compare two values and return a result based on their relationship. These operators can be used to compare numbers, strings, or dates.

Syntax

The syntax for using comparison operators in Oracle is as follows:

value1 operator value2

Here, value1 and value2 are the values being compared, and operator is the comparison operator being used.

Example

Here are some examples of using comparison operators in Oracle:

SELECT * FROM employees WHERE salary > 50000;

SELECT * FROM customers WHERE first_name = 'John';

SELECT * FROM orders WHERE order_date < '01-JAN-21';

In the first example, we are selecting all employees with a salary greater than 50000. In the second example, we are selecting all customers with a first name of 'John'. In the third example, we are selecting all orders with an order date before January 1, 2021.

Output

The output of a comparison operation will depend on the values being compared and the operator being used. The result will always be a Boolean value (TRUE or FALSE).

Explanation

In the above examples, we are using the comparison operators >, =, and < to compare different values. The first example is using the greater than operator to select all employees with a salary greater than 50000. The second example is using the equal to operator to select all customers with a first name of 'John'. The third example is using the less than operator to select all orders with an order date before January 1, 2021.

Use

Comparison operators are used in Oracle to compare values and select specific data from tables based on their relationship. They are an important aspect of querying data in Oracle and are used in conjunction with other SQL statements to filter and sort data.

Important Points

• Comparison operators are used to compare values in Oracle.
• The result of a comparison operation is always a Boolean value (TRUE or FALSE).
• Comparison operators can be used to compare numbers, strings, or dates.
• Comparison operators are used in conjunction with other SQL statements to filter and sort data.

Summary

In summary, comparison operators are an important aspect of querying data in Oracle. They are used to compare values and select specific data from tables based on their relationship. Comparison operators can be used to compare numbers, strings, or dates, and are commonly used in conjunction with other SQL statements to filter and sort data.