Calling convention: GetProductDesc(ProductID: Integer): String
Description: Reads the product description from the PRODUCT table by product ID.
Parameters:
ProductID: product identifier.
Returns: Product description, or NULL for a NULL or empty argument or when no product is found. A field conversion error produces an empty string.
Availability: Default; requires the PRODUCT.Description field.
Example:
ProductDescription := GetProductDesc(ProductID);