desc | Teradata Package for Python - desc - Teradata Package for Python

Teradata® Package for Python User Guide

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Teradata Package for Python
Release Number
20.00
Published
March 2024
Language
English (United States)
Last Update
2024-04-09
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Product Category
Teradata Vantage

Use the desc() function to generate a new ColumnExpression which sorts the actual expression in descending order.

  • This function is supported only while sorting data.
  • This function is neither supported in projection nor supported in filtering data.

Example

>>> from teradataml import load_example_data
>>> load_example_data("dataframe","sales")
>>> df = DataFrame.from_table('sales')
>>> df.csum(sort_columns=[df.accounts, df.Feb.desc()], drop_columns=True)
   csum_Feb  csum_Jan  csum_Mar  csum_Apr
0     500.0       400       450       531
1     910.0       550       590       781
2    1000.0       550       590       781
3     710.0       400       450       781
4     300.0       250       310       351
5     210.0       200       215       250