TD_RoundColumns Function | RoundColumns | Teradata Vantage - TD_RoundColumns - Analytics Database

Database Analytic Functions

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-04-06
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Product Category
Teradata Vantageā„¢

TD_RoundColumns rounds the values of each specified input table column to a specified number of decimal places.

Rounding input table columns to a specified number of decimal places in data engineering can have several benefits:
  • Data consistency: Ensure that the data remains consistent across different sources and applications that use the data. This can prevent errors and inconsistencies that can arise from rounding differences between different systems.
  • Data reduction: Reduce the size of the dataset, making it easier to process and analyze. This can be especially important in big data applications where the size of a dataset can be very large.
  • Improved accuracy: Improve accuracy by reducing the impact of minor variations in numeric values that may not be relevant to the analysis being performed. For example, if you are working with financial data and only need to analyze amounts to the nearest dollar, rounding the values to the nearest dollar could make it easier to identify patterns and trends in the data.
  • Improved visualization: Visualize the data. For example, if the data is being plotted on a graph, rounding the input values can reduce the number of data points and make the graph easier to read.
  • Improved performance: Improve the performance of certain algorithms and machine learning models that are computationally expensive. Rounding can reduce the computational complexity of these algorithms and models, making them faster and more efficient.