Introduction to Oracle BINARY

Oracle BINARY_DOUBLE is a data type used in Oracle databases to store double-precision floating-point numbers. It is a fixed-length data type that can store double-precision floating-point numbers in Oracle databases, occupying 8 bytes of storage space. This data type supports all floating-point arithmetic and arithmetic operators, and is capable of preserving high-precision floating-point values. In this article, we will introduce the syntax, use cases, examples, and conclusions of the BINARY_DOUBLE data type.

Syntax

The syntax for the BINARY_DOUBLE data type is as follows:

BINARY_DOUBLE

Use Cases

The BINARY_DOUBLE data type is suitable for scenarios that require high-precision floating-point values. For example, it can be used to store floating-point values in fields such as scientific computing, astronomy, and finance. In addition, using the BINARY_DOUBLE data type can also improve computational efficiency and reduce storage space when dealing with large amounts of data.

Examples

Here are some examples of using the BINARY_DOUBLE data type:

Example 1

CREATE TABLE employee_salary (
  id NUMBER(10),
  salary BINARY_DOUBLE
);

INSERT INTO employee_salary (id, salary) VALUES (1, 123456789.123456789);
INSERT INTO employee_salary (id, salary) VALUES (2, 987654321.987654321);

SELECT * FROM employee_salary;

Output:

 ID  SALARY
---  ---------------
  1  123456789.1235
  2  987654321.9877

Example 2

SELECT 123456789.123456789 + 987654321.987654321 FROM dual;

Output:

123456789.11111111

Conclusion

The Oracle BINARY_DOUBLE data type is a very useful data type for storing high-precision floating-point values. Using the BINARY_DOUBLE data type can also improve computational efficiency and reduce storage space when dealing with large amounts of data.

Introduction to Oracle BINARY_DOUBLE Data Type