Which function should you use to calculate the division of two numeric values in ABAP SQL and round the result to exactly 1 decimal?

To calculate the division of two numeric values in ABAP SQL and ensure the result is rounded to exactly one decimal place, using the numeric function DIVISION() is the appropriate choice.

The DIVISION() function is specifically designed to perform division operations while providing precise control over the rounding of decimal places. When using DIVISION(), you can specify the number of decimal places you want in the result, which is essential for achieving the required precision of one decimal. This function also takes care of potential division by zero scenarios, making it safer for use in calculations.

While the operator / can perform division, it does not inherently provide rounding capabilities, so it would not guarantee the desired one decimal precision without additional rounding mechanisms. Similarly, the numeric function DIV() does not exist in the ABAP SQL context, which makes it an unsuitable option for this task.

Choosing DIVISION() allows for both accurate division and proper rounding in one step, fulfilling the needs of the query effectively.