Add a row only to empty attribute tables

Question

Original User: Helenak

System ArcGIS 9.3
Python 2.6

Hello

Question 1
I have about 100 point shapefiles in a folder.
(Let�??s call them type A shapefile)
All of them have no rows in attribute tables. (as attach python_1)[ATTACH=CONFIG]20162[/ATTACH]
I would like to add one row to each of them.
In the row, 0 (short integer) will be input in the field CXXXX. (X= number)

Please kindly help with the python code and thank you.

PS. Adding a row to an empty attribute table is to save the CXXXX field in the table.
     The CXXXX field will remain after merging but won't without being input a row.

Question 2
In the same folder of the 100 point shapefiles, 
There are about 50 point shapefiles in addition to type A shapefile.
(Let�??s call them type B shapefile)
Type B shapefiles have one row in attribute tables. (as attach python_2)[ATTACH=CONFIG]20163[/ATTACH]

Please kindly advise how to modify the python code for Q1, in order to avoid adding a row to type B shapefiles. Thank you.

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Anonymous User · Answer

Original User: Wayne_Whitley

Looks like you have made progress on this overnight, that is good.  Probably would have been more productive had you posted back to a common place instead of starting multiple threads....just makes it harder to follow what you are trying to do and trace what exactly you need help with.  Also when you say you want to add fields, I think you mean to say you want to search for field names and add field values.
Later I did see your code posted above which you must have posted while I was in process making my last post.  I am not going to comment further on this because it seems since then you have at least added your desired row to all shapefiles - except you have now 1 too many rows in your 101 - 150 set?  In order to keep up with the current status of your processing, let's move to your other posts.  Sounds like you have nearly completed your task, with 2 details remaining?:
1) delete the extra row on part of your dataset
2) target and populate your Cxxxx field with a value

...see your other posts...

ElaineKuo · Answer

Hello thanks for the quick response.

For further explanation:

Q1: You are right. 
C0001-C0100 will be saved in the string field without loading points.

Q2: You are misunderstood.
The string fields of C0101-C0150 already exsit, and they will not be erased.
They are in need.
However, while adding string fields to C0001-C0100, 
I do not want to add string fields to C0101-C0150.

Please kindly advise how to solve Q2.
Thank you.

That's a little confusing.  You have mostly empty shapefiles?  And you want to add fields to a single shapefile so that you have string fields added, C0001 - C0100.  ...and then C0101 - C0150 in another?  Here's the thing:  you can easily add fields without bothering to merge feature classes that have no records.  Is that what you want?  Do you need to load any points?  You mentioned that you had single points for each 101 to 150, no need to save these?...you are mainly interested in the schema or file structure?

Anonymous User · Answer

Original User: Wayne_Whitley

That's a little confusing.  You have mostly empty shapefiles?  And you want to add fields to a single shapefile so that you have string fields added, C0001 - C0100.  ...and then C0101 - C0150 in another?  Here's the thing:  you can easily add fields without bothering to merge feature classes that have no records.  Is that what you want?  Do you need to load any points?  You mentioned that you had single points for each 101 to 150, no need to save these?...you are mainly interested in the schema or file structure?