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Sort

Summary

Reorders, in ascending or descending order, records in a feature class or table based on one or multiple fields. The reordered result is written to a new dataset.

Learn more about how Sort works

Illustration

Change the order of a feature class or table by sorting on one or multiple fields

Usage

  • Feature classes can be spatially reordered, or sorted. The Shape field must be used as the sort field for spatial sorting. There are a number of spatial sort methods that arrange the features differently based on their location.

  • If any input records are selected, only the subset of selected records are sorted and written to the output.

  • If more than one field is set as a sort field, rows are first sorted by the first field and within that order sorted by the second field, and so on.

  • Polygon features can be sorted by their area using the Shape_Area field of a geodatabase feature class. Similarly, polyline features can be sorted by their length using the Shape_Length field. If you want to sort polygon features in a shapefile, add a new field, calculate the area into the new field using Calculate Field, and run Sort using the new field.

  • License:

    For the Field(s) parameter, sorting by the Shape field or by multiple fields is only available with an Desktop Advanced license. Sorting by any single attribute field (excluding Shape) is available at all license levels.

Syntax

Sort_management (in_dataset, out_dataset, sort_field, {spatial_sort_method})
ParameterExplanationData Type
in_dataset

The input dataset whose records will be reordered based on the field values in the sort field(s).

Table View
out_dataset

The output feature class or table.

Feature Class; Table
sort_field
[[sort_field, direction],...]

Specifies the field(s) whose values will be used to reorder the input records, and the direction the records will be sorted.

License:

Sorting by the Shape field or by multiple fields is only available with an Desktop Advanced license. Sorting by any single attribute field (excluding Shape) is available at all license levels.

  • Ascending—Records are sorted from low value to high value.
  • Descending—Records are sorted from high value to low value.
Value Table
spatial_sort_method
(Optional)

Specifies how features are spatially sorted. The sort method is only enabled when the Shape field is selected as one of the sort fields.

  • URSorting starts at upper-right corner. This is the default.
  • ULSorting starts at upper-left corner.
  • LRSorting starts at lower-right corner.
  • LLSorting starts at lower-left corner.
  • PEANOSorting uses a space filling curve algorithm, also known as a Peano curve.
String

Code sample

Sort example 1 (Python window)

The following Python window script demonstrates how to use Sort to order features by the values of a field.

import arcpy
from arcpy import env

env.workspace = "C:/data/city.gdb"

arcpy.Sort_management("crime", "crime_Sort", [["DATE_REP", "ASCENDING"]])
Sort example 2 (stand-alone script)

The following Python script demonstrates how to use Sort in a stand-alone script.

# Name: Sort_example2.py
# Description: Sorts wells by location and well yield.

# Import system modules
import arcpy

# Set workspace environment
arcpy.env.workspace = "C:/data/newfoundland.gdb"

# set local variables
in_dataset = "wells"
out_dataset = "wells_Sort"

# Order features first by location (Shape) and then by WELL_YIELD
sort_fields = [["Shape", "ASCENDING"], ["WELL_YIELD", "DESCENDING"]]

# Use Peano algorithm
sort_method = "PEANO"

# execute the function
arcpy.Sort_management(in_dataset, out_dataset, sort_fields, sort_method)

Licensing information

  • ArcGIS Desktop Basic: Limited
  • ArcGIS Desktop Standard: Limited
  • ArcGIS Desktop Advanced: Yes

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