topic Re: findrask limitation in ArcGIS JavaScript Maps SDK Questions https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/findrask-limitation/m-p/318352#M29376 <HTML><HEAD></HEAD><BODY><SPAN>Because in the majority of cases the data schemas of the layers are different a query can be only defined and valid for that specific data source/attribute table/feature class/layer. So the "Query" operation works only for one layer at once. A "Find" operation is implemented different and therefore works on multiple layers of one service; it's an operation of the service-endpoint whereas the query is an operation on a layers-endpoint.</SPAN><BR /><BR /><SPAN>To query multiple layers you have to place your query on each layer, specifiy the return fields and combine the results in your application-view.</SPAN><BR /><BR /><SPAN>Find Operation: </SPAN><A href="http://sampleserver3.arcgisonline.com/ArcGIS/SDK/REST/find.html">http://sampleserver3.arcgisonline.com/ArcGIS/SDK/REST/find.html</A><BR /><BR /><SPAN>Query Operation: </SPAN><A href="http://sampleserver3.arcgisonline.com/ArcGIS/SDK/REST/query.html">http://sampleserver3.arcgisonline.com/ArcGIS/SDK/REST/query.html</A><BR /><BR /><SPAN>Best regards,</SPAN><BR /><SPAN>Axel</SPAN></BODY></HTML> Tue, 02 Nov 2010 09:58:26 GMT AxelSchaefer 2010-11-02T09:58:26Z findrask limitation https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/findrask-limitation/m-p/318351#M29375 <HTML><HEAD></HEAD><BODY><SPAN>how i can search in multible&nbsp; layer using find task in using where because i have more than one parameter to spcify the correct record</SPAN><BR /><SPAN>i want somthing like query.where ="cityname = ca and year_id= 2010 and id=9" and the search will be in layer 0 and 1</SPAN></BODY></HTML> Wed, 27 Oct 2010 21:10:43 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/findrask-limitation/m-p/318351#M29375 ahmadhasan 2010-10-27T21:10:43Z Re: findrask limitation https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/findrask-limitation/m-p/318352#M29376 <HTML><HEAD></HEAD><BODY><SPAN>Because in the majority of cases the data schemas of the layers are different a query can be only defined and valid for that specific data source/attribute table/feature class/layer. So the "Query" operation works only for one layer at once. A "Find" operation is implemented different and therefore works on multiple layers of one service; it's an operation of the service-endpoint whereas the query is an operation on a layers-endpoint.</SPAN><BR /><BR /><SPAN>To query multiple layers you have to place your query on each layer, specifiy the return fields and combine the results in your application-view.</SPAN><BR /><BR /><SPAN>Find Operation: </SPAN><A href="http://sampleserver3.arcgisonline.com/ArcGIS/SDK/REST/find.html">http://sampleserver3.arcgisonline.com/ArcGIS/SDK/REST/find.html</A><BR /><BR /><SPAN>Query Operation: </SPAN><A href="http://sampleserver3.arcgisonline.com/ArcGIS/SDK/REST/query.html">http://sampleserver3.arcgisonline.com/ArcGIS/SDK/REST/query.html</A><BR /><BR /><SPAN>Best regards,</SPAN><BR /><SPAN>Axel</SPAN></BODY></HTML> Tue, 02 Nov 2010 09:58:26 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/findrask-limitation/m-p/318352#M29376 AxelSchaefer 2010-11-02T09:58:26Z