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If Selection Exists

Summary

Evaluates if the input data has a selection and if a certain number of records are selected.

Learn how If Selection Exists works in ModelBuilder

Usage

  • This tool does not make a selection or evaluate an SQL expression or where clause. It simply checks if a selection set matches a specified value. Use the Select Layer By Attribute tool to make a selection in ModelBuilder. Use the If Field Value Is logical tool to evaluate if the input dataset has records that match a SQL expression or where clause.

  • This tool is intended for use in ModelBuilder and not in Python scripting.

  • The tool has two Boolean outputs, True and False. Based on the condition being evaluated one of the two boolean outputs is true and the other false after the tool runs. These boolean outputs have to be set as a precondition to the downstream tools for those to execute if either of the preconditions is true.

Syntax

SelectionExistsIfThenElse_mb (in_layer_or_view, {selection_condition}, {count}, {count_min}, {count_max})
ParameterExplanationData Type
in_layer_or_view

Input layer or table view to evaluate.

Table View, Raster Layer, Mosaic Layer
selection_condition
(Optional)

The selection condition to use for the field values of the records matching the SQL expression.

  • EXISTSChecks if the field value exists for the records matching the SQL expression. Default.
  • NO_SELECTIONChecks if none of the records matching the SQL expression are selected.
  • ALL_SELECTEDChecks if all of the records matching the SQL expression are selected.
  • IS_EQUAL_TOChecks if the field value of the records matching the SQL expression is equal to the Count value.
  • IS_BETWEENChecks if the field value of the records matching the SQL expression is between the Minimum Count value and Maximum Count value..
  • IS_LESS_THANChecks if the field value of the records matching the SQL expression is equal to the Count value.
  • IS_GREATER_THANChecks if the field value of the records matching the SQL expression is greater than the Count value.
  • IS_NOT_EQUAL_TOChecks if the field value of the records matching the SQL expression is not equal to the Count value.

String
count
(Optional)

An integer count value.

Long
count_min
(Optional)

A minimum integer count value.

Long
count_max
(Optional)

A maximum integer count value.

Long

Environments

This tool does not use any geoprocessing environments.

Licensing information

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