Is There a Product Function Equivalent to SUM in Oracle SQL?

Does Oracle SQL Offer a PRODUCT Function Equivalent to SUM?

Oracle SQL provides a robust sum function to aggregate numerical values. However, a product function, similar to SUM, is not natively available.

Approximating PRODUCT Using SUM

To simulate a product function, leverage the exponential function to calculate the exponentiation of the sum of natural logarithms of values. This technique mimics the behavior of the product function:

SELECT EXP(SUM(LN(col)))
FROM table;

This expression converts each column value to its natural logarithm, sums these values, and exponentiates the result to obtain the product.

Consideration for Positive Values

The method assumes that all column values are positive. If negative values are present, the natural logarithm will result in complex numbers, leading to incorrect results.

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