How to select layer by attribute in ArcPy?

How to select layer by attribute in ArcPy?

You may have a layer in your map that’s source points to the same input as the featureclass you provided to the tool, but you basically have two instances of these layers now. Fix: Change the input parameter type from feature class to feature layer.

How to create a select by attribute script?

Trying to create a simple select by attribute script that will select based upon an input in a tool, in ARC Toolbox. My data is stored in a File database in a Feature Dataset called “Control”, Feature Class is called “Monuments”. Field is called “Township”.

Why does tool don’t select anything in Python?

When you say the “tool doesnt select anything”, I assume you mean you don’t see a selection in the map. It doesn’t appear to select anything because you’ve run Make Feature Layer and and performed a selection on that layer — that is, a layer that’s local to the tool instead of the Map.

What are the names of the input fields in ArcPy?

Right now you’re using strings named “InputField” and “inputvalue” This is the code that ended up working but only for numeric fields:

How to create a select by attribute script in Python?

That is valid syntax, as in the following: whereClause = “Monuments.Township = ‘” + TWN + “‘” arcpy.SelectLayerByAttribute_management(Monuments, “NEW_SELECTION”, whereClause) My short answer above does the same thing in one line of code instead of two.

How do I select a layer in ArcGIS?

The feature layer or table view to which the selection will be applied. The input can be a layer or table view in the ArcMap table of contents, or a layer or table view created in ArcCatalog or in scripts using the Make Feature Layer or Make Table View tools. Determines how the selection will be applied and what to do if a selection already exists.

Can a layer be selected based on an attribute query?

Adds, updates, or removes a selection on a layer or table view based on an attribute query. The input must be a feature layer or a table view. The input cannot be a feature class or table.

Can a layer be a feature class or table?

The input cannot be a feature class or table. This tool works on layers or table views in the ArcMap table of contents, and also on layers or table views created in a scripts using the Make Feature Layer or Make Table View tools.

How to clear a selection in ArcGIS Pro?

CLEAR_SELECTION — The selection is cleared or removed. The Expression parameter (where_clause in Python) is ignored when this option is specified. An SQL expression used to select a subset of records. For more information about SQL syntax, see SQL reference for query expressions used in ArcGIS.

How to script a select by attribute tool?

I’m trying to script another Select by Attributes tool. I want to be able to find a specific building using a field and zoom in to the location. However, my tool needs to allow a user to input any field or any value. So far this is what I got.

How does add to selection work in ArcGIS Pro?

ADD_TO_SELECTION — The resulting selection is added to the current selection if one exists. If no selection exists, this is the same as the new selection option. REMOVE_FROM_SELECTION — The resulting selection is removed from the current selection. If no selection exists, this option has no effect.

How to get a parameter as a string in ArcPy?

Any value regardless of the parameter data type will be returned as a string; to use the parameter as an ArcPy or Python object instead, see GetParameter. The numeric position of the parameter in the parameter list. The value of the specified parameter, returned as a string. Get specified parameter as text string.

How to create a new layer in ArcGIS?

If the input is a feature class or dataset path, this tool will automatically create and return a new layer with the result of the tool applied. If the input’s data source is a feature service, it is recommended that the underlying ArcGIS Server use standardized SQL queries.

Where does the selection take place in ArcGIS?

The feature layer or table view to which the selection will be applied. The input can be a layer or table view in the ArcMap table of contents, or a layer or table view created in ArcCatalog or in scripts using the Make Feature Layer or Make Table View tools.

How to select a subset of Records in ArcGIS?

An SQL expression used to select a subset of records. For more information about SQL syntax, see SQL reference for query expressions used in ArcGIS. Specifies whether the expression will be used as is, or the opposite of the expression will be used. NON_INVERT — The query will be used as is. This is the default.

How to add a field to a feature class in Python?

I have to try to add a field called ‘Name’ to a bunch of different feature classes using python, and then access the name of the feature class to fill in the field. I have no idea how to even start this!

Is there way to zoom using the ArcPy module in ArcGIS Desktop 10?

Is there a way to zoom to the extent of a selected feature using the ArcPy module in ArcGIS Desktop 10. Stack Exchange Network Stack Exchange network consists of 177 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Visit Stack Exchange

How to use select by attribute in ESRI?

I found it hereon the ESRI website. Add it as a script to a model, then connect the output of a select by attribute tool to it. It does exactly what I want. import arcpy mxd = arcpy.mapping.MapDocument(‘CURRENT’) df = arcpy.mapping.ListDataFrames(mxd, “Layers”) [0] df.zoomToSelectedFeatures() arcpy.RefreshActiveView()