Cursors are used by database programmers to process individual rows returned by database system queries.

learn more… | top users | synonyms

0
votes
1answer
157 views

Polygon Neighbors Analysis script (ArcPy 10.1) producing erroneous results?

I'm struggling with a python script that is supposed to calculate a field for a polygon feature class. The calculation is of the average of a field value (P_TOT_DEV) for each of a given polygon's ...
0
votes
1answer
35 views

Copying extents between features

I have a Building feature class whose individual building footprint extents I want to match to associated Level feature classes. Unfortunately, the Level data was converted from DWG files with only ...
3
votes
0answers
62 views

Basic arcpy script with cursors running SLOW!

I've got 2 polygons layers (no gaps): IDUs and crops. What I want is to identify the 3 largest crops by % area for each IDU. This seems common enough but I couldn't find a way to do it all using ...
2
votes
0answers
34 views

Multiple Cursors

Below is the sql statement which I have explained below. Declare Cursor c1 is select store_number ,0 as total_area,0 as BG_ID ,0 as store_geom from table1 where CLIENT_ID= 1 and ORG_ID ...
2
votes
0answers
103 views

Can I use a cursor to select two rows and compare attributes

Can I use the cursor search function to look at the first two rows in a table and select them so I can compare attributes and possibly merge them or change attributes? I am using ArcGIS 10.0
2
votes
0answers
178 views

Processing arcobjects cursor is taking long time

I am maintaining a code on arcobjects 10.1, and there is a bug happening. I have a code that is parsing through a cursor, and generate a where clause statement to run it on a second query. So the code ...
1
vote
0answers
53 views

SQL Prefix for arcpy.da.SearchCursor

Does the sql prefix - DISTINCT work well on SDE tables? http://resources.arcgis.com/en/help/main/10.1/index.html#//018w00000011000000 Syntax: SearchCursor (in_table, field_names, {where_clause}, ...
1
vote
0answers
18 views

Q: cursor memory and fields therein

Theoretical Python question. Say you have an update cursor while-loop for a few selected records. While looping through the rows, at some point a nested if statement triggers an "addfield" event. The ...
0
votes
0answers
52 views

pyspatialite, cannot update geometry

I'm trying to update geometry column with pyspatialite but it returns error: spatialite.dbapi2.IntegrityError: mypoints.the_geom violates Geometry constraint [geom-type or SRID not allowed] My ...
0
votes
0answers
23 views

Using file directories from a table

I have a toolset that will be using a set of file directories as input (shapefiles, raster etc.).The table can be stored as CSV or DBF. Is there a way to read a specific cell (row,column) of the ...
0
votes
0answers
58 views

Multiple geometry in a cursor SQL

I have a cursor which I create from a table which has one geometry field only. But in my cursor I would be using two geometry fields as I need to calculate two different areas.Below is the sql ...
0
votes
0answers
30 views

SQL cursor issue

I am trying to create a new table using a cursor and a select statements. Declare Cursor c1 is select store_number from table1 where CLIENT_ID= 1 and ORG_ID = 1 ; Type C1_TAB_TYPE ...
0
votes
0answers
66 views

arcgisscripting - setValue error

I'm having difficulty isolating this problem - at the point I attempt to alter a record with update cursor, the script returns a 999999 error. I've tried running this script without ArcMap running in ...