Charles,

A cautionary note on shapefiles: they use dBase III-format files for 
non-spatial data, this format does not officially support null data values (see 
for example the discussion at 
http://gis.stackexchange.com/questions/28411/how-to-have-a-nullable-field-included-in-a-shapefile-using-the-geotools-library).
 If your data schema allows for nulls you will either need to use some ad-hoc 
work-around or consider a different file format.

- Phil Anzel 
  USDA/NRCS contractor - Team Vistronix

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Today's Topics:

   1. Vector Data Formats (Kaminski Jr, Charles (RIS-ATL))
   2. Re: Vector Data Formats (Rahkonen Jukka (MML))


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Message: 1
Date: Fri, 14 Aug 2015 13:46:26 +0000
From: "Kaminski Jr, Charles (RIS-ATL)"
        <[email protected]>
To: "[email protected]"
        <[email protected]>
Subject: [mapserver-users] Vector Data Formats
Message-ID:
        <7e32f2324944864fb2eab8aaad39bfff8ec2d...@risbctmbxp003.risk.regn.net>
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Does anyone have any opinions on which vector data formats are preferred when 
serving up file-based data sources?


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Message: 2
Date: Fri, 14 Aug 2015 14:13:41 +0000
From: "Rahkonen Jukka (MML)" <[email protected]>
To: "Kaminski Jr, Charles (RIS-ATL)"
        <[email protected]>,      
"[email protected]"
        <[email protected]>
Subject: Re: [mapserver-users] Vector Data Formats
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Hi,

My favourites are shapefiles and Spatialite. Shapefile format has filesize 
limits at 2/4 GB, but we have one very well working layer with +300 GB data in 
shapefiles which are used through ogrtileindex. Remember .qix indexing.  With 
attribute filters shapefiles may get slow because attributes of shapefiles 
can?t be indexed otherwise than by sorting with sortshp utility. If advanced 
filters are needed then a properly indexed Spatialite DB is my favourite format.

-Jukka Rahkonen-

Kaminski Jr, Charles wrote:

Does anyone have any opinions on which vector data formats are preferred when 
serving up file-based data sources?
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