TOP m PERCENT and Rounding - Analytics Database - Teradata Vantage

SQL Data Definition Language Detailed Topics

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-07-11
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vuk1628111288877.ditamap
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dita:id
B035-1184
lifecycle
latest
Product Category
Teradata Vantage™

If (m*COUNT(*)/100.0) does not evaluate to an integer value, then Vantage rounds it up to the next highest integer value; otherwise, the intended result is not achieved. The following table shows how rounding occurs:

IF (m*COUNT(*)/100.0) evaluates to this value … THEN the system rounds it up to this value …
0.1                                          1
9.2                                        10

Vantage only applies this rounding up to the first 15 digits following the decimal point. For example, if (m*COUNT(*)/100.0) evaluates to 0.0000000000000001, or 1 x 10-16, then the system does not round it up to 1.