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Oracle® Database SQL Language Reference
12c Release 1 (12.1)

E17209-15
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TO_BINARY_FLOAT

Syntax

Description of to_binary_float.gif follows
Description of the illustration to_binary_float.gif

Purpose

TO_BINARY_FLOAT returns a single-precision floating-point number.

You cannot use a floating-point number format element (F, f, D, or d) in a character string expr.

Conversions from character strings or NUMBER to BINARY_FLOAT can be inexact, because the NUMBER and character types use decimal precision to represent the numeric value and BINARY_FLOAT uses binary precision.

Conversions from BINARY_DOUBLE to BINARY_FLOAT are inexact if the BINARY_DOUBLE value uses more bits of precision than supported by the BINARY_FLOAT.

Examples

Using table float_point_demo created for TO_BINARY_DOUBLE, the following example converts a value of data type NUMBER to a value of data type BINARY_FLOAT:

SELECT dec_num, TO_BINARY_FLOAT(dec_num)
  FROM float_point_demo;

   DEC_NUM TO_BINARY_FLOAT(DEC_NUM)
---------- ------------------------
   1234.56               1.235E+003