Updating a cursor

Today I'm going to talk about one of the most irritating, annoying and frustrating problems I have ever encountered while using laptops. It doesn't matter what and where are you typing, you might be typing in Microsoft Word or a web browser or anywhere else.

When you are typing some text, the mouse cursor automatically jumps to a different location and if you don't notice it and keep typing, you may end up with an unpredictable document which might look written in an alien language.

Update Cursor(fc, fields) as cursor: # For each row, evaluate the WELL_YIELD value (index position # of 0), and update WELL_CLASS (index position of 1) for row in cursor: if (row[0] import arcpy workspace = 'c:/data/output.gdb' fc = 'c:/data/base.gdb/roads' fields = ['ROAD_TYPE', 'BUFFER_DISTANCE'] # Create update cursor for feature class with for row in cursor: # Update the BUFFER_DISTANCE field to be 100 times the # ROAD_TYPE field.

Update Cursor(fc, fields) as cursor: # Update the field used in Buffer so the distance is based on road # type. row[1] = row[0] * 100 cursor.update Row(row) # Buffer feature class using updated field values arcpy.

Operations in a relational database act on a complete set of rows.

For example, the set of rows returned by a SELECT statement consists of all the rows that satisfy the conditions in the WHERE clause of the statement.

If you are using a laptop and facing similar problem, you can give this freeware a try using following link: and later operating systems come with a built-in option to prevent accidentally moving cursor while typing. Now you just need to change the value of "To help prevent the cursor from accidentally moving while you type, change the delay before clicks work" option. If it doesn't work for you, try to change its value to "Long delay".

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I double-checked that my hands were not touching the touchpad accidentally.When updating fields, if the incoming values match the type of field, the values will be cast as necessary.For example, a value of import arcpy fc = 'c:/data/base.gdb/well' fields = ['WELL_YIELD', 'WELL_CLASS'] # Create update cursor for feature class with ) instead of a list of fields if you want to access all fields from the input table (raster and BLOB fields are excluded).However, for faster performance and reliable field order, it is recommended that the list of fields be narrowed to only those that are actually needed. Additional information can be accessed using tokens (such as .

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