topic Re: Is there any limit on number of features a query task returns? in ArcGIS JavaScript Maps SDK Questions

Is there any limit on number of features a query task returns?

srujand — Fri, 10 May 2013 12:05:22 GMT

Hi Group,
I want to perform a query task against a feature layer in ArcGISDynamic Layer which contains 36527 features .But When I query the feature layer and count the fatures length ,I see only 1000.My question is does query returns a maximum of 1000 or is it possible that the map REST service layer is set to 1000 records .Because I noticed the same query on map service from the URL returns just 1000.
Here is the code related the query .The queryTask.executeForCount is printing 36527 but I see in only 1000 features after query task exceuted.
I need the solution very soon.Could anyone help me understand what's going on here.

var layerId = getlayerIdByName("primary_dataset","Active Road Crossings");   var queryTask = new esri.tasks.QueryTask(primaryMapUrl + "/"+layerId);      var query = new esri.tasks.Query();      query.returnGeometry = false;      query.outFields = ["OBJECTID","ENG_XING"];        query.where = "1=1" ;             queryTask.executeForCount(query,function(count){         alert(count);       },function(error){         console.log(error);       });      queryTask.execute(query,populateDotXingNumbers);

Re: Is there any limit on number of features a query task returns?

JakeSkinner — Fri, 10 May 2013 12:44:35 GMT

Yes, this is set within the Parameters of the service. Ex:

[ATTACH=CONFIG]24194[/ATTACH]

See the following help link here.

Maximum number of records returned by the server: Clients, such as the ArcGIS web APIs, can perform query operations to return specific information, or records, from a map service. This property specifies how many records can be returned by the server to a client for any given query operation. Specifying a large number of records to be returned by the server can slow the performance of client applications consuming your map service, such as web browsers, and your GIS server.

Re: Is there any limit on number of features a query task returns?

srujand — Fri, 10 May 2013 12:51:27 GMT

Yes, this is set within the Parameters of the service. Ex:

[ATTACH=CONFIG]24194[/ATTACH]

See the following help link here.

Maximum number of records returned by the server: Clients, such as the ArcGIS web APIs, can perform query operations to return specific information, or records, from a map service. This property specifies how many records can be returned by the server to a client for any given query operation. Specifying a large number of records to be returned by the server can slow the performance of client applications consuming your map service, such as web browsers, and your GIS server.

Awesome!!! That was very helpful.
From which tool is that screen shot from ?

Re: Is there any limit on number of features a query task returns?

JakeSkinner — Fri, 10 May 2013 13:18:25 GMT

That screen shot is from when you are publishing a map service at 10.1.

Re: Is there any limit on number of features a query task returns?

srujand — Fri, 10 May 2013 13:23:46 GMT

That screen shot is from when you are publishing a map service at 10.1.

Thanks A lot!!!

Re: Is there any limit on number of features a query task returns?

JssrRR — Tue, 02 Jun 2015 22:17:39 GMT

Hi Jake,

When I go change the number to 2000 or higher, while publishing the map service, I am getting this error, do you know how I can fix this?

I asked a question this morning in the forum, because I am not getting an accurate result when the selected features are more than 1000 within the buffer distance, here :

Re: Selected features within a buffer not getting accurate results

Thanks for your help!