topic Documentation for geodatabase structure in Data Management Questions https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759054#M42650 <HTML><HEAD></HEAD><BODY><SPAN>Hello! soory if this request seems a cliquet for you but I desperatly need to find some documentation for </SPAN><STRONG>geodatabase file structure</STRONG><SPAN>(especially .mdb and .gdb files), because I'm in my last year of studies at my academy and i'm preparing my Licence Thesis and I searched everywere and didn't find a thing. Please help me! Thank you!</SPAN></BODY></HTML> Tue, 29 Mar 2011 13:36:30 GMT MateiPaul 2011-03-29T13:36:30Z Documentation for geodatabase structure https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759054#M42650 <HTML><HEAD></HEAD><BODY><SPAN>Hello! soory if this request seems a cliquet for you but I desperatly need to find some documentation for </SPAN><STRONG>geodatabase file structure</STRONG><SPAN>(especially .mdb and .gdb files), because I'm in my last year of studies at my academy and i'm preparing my Licence Thesis and I searched everywere and didn't find a thing. Please help me! Thank you!</SPAN></BODY></HTML> Tue, 29 Mar 2011 13:36:30 GMT https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759054#M42650 MateiPaul 2011-03-29T13:36:30Z Re: Documentation for geodatabase structure https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759055#M42651 <HTML><HEAD></HEAD><BODY><SPAN>The logical layout of Personal Geodatabase (.mdb) and File Geodatabase (.gdb) is documented </SPAN><BR /><SPAN>in the help system.&nbsp; Unlike the shapefile format, the binary format of .mdb/.gdb files isn't publicly </SPAN><BR /><SPAN>documented anywhere (.mdb is managed via the Microsoft Jet engine, and .gdb is managed </SPAN><BR /><SPAN>directly by ArcObjects).&nbsp; </SPAN><BR /><SPAN> </SPAN><BR /><SPAN>The </SPAN><A href="http://blogs.esri.com/Dev/blogs/geodatabase/archive/2010/12/13/File-Geodatabase-API-details.aspx">File Geodatabase API</A><SPAN> is in the final stages of release, but the API only provides access</SPAN><BR /><SPAN>to the data in file geodatabases (and only 10.0 FGDB at that), not the implementation details.</SPAN><BR /><SPAN> </SPAN><BR /><SPAN>How are these formats linked to your thesis?</SPAN><BR /><SPAN> </SPAN><BR /><SPAN>- V</SPAN></BODY></HTML> Tue, 29 Mar 2011 14:34:25 GMT https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759055#M42651 VinceAngelo 2011-03-29T14:34:25Z Re: Documentation for geodatabase structure https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759056#M42652 <HTML><HEAD></HEAD><BODY><SPAN>Yes, I know they are in the product help but I'm interested in their internal structure, bits arrangement, how these files are structured, etc. </SPAN><BR /><SPAN>My thesis is about conversion algorithms between raster files, vector files, and vector-raster conversions. </SPAN><BR /><SPAN>Maybe you know some documentation where I can find such specification about .mdb, .gdb!</SPAN><BR /><BR /><SPAN>Thank you for your help!</SPAN></BODY></HTML> Wed, 30 Mar 2011 04:37:04 GMT https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759056#M42652 MateiPaul 2011-03-30T04:37:04Z Re: Documentation for geodatabase structure https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759057#M42653 <HTML><HEAD></HEAD><BODY><SPAN>The internal structure of those formats are proprietary, and will not be published.</SPAN><BR /><SPAN>This is quite common with working formats that evolve with each release -- Once</SPAN><BR /><SPAN>published, the originator loses flexibility to adapt to changing technology (which</SPAN><BR /><SPAN>is one of the reasons that shapefiles are limited to 2Gb in the .shp component).</SPAN><BR /><SPAN> </SPAN><BR /><SPAN>Since the FileGBDAPI exposes attributes though getter/setter functions, and uses </SPAN><BR /><SPAN>the shapefile geometry spec for vector transfer, you likely have enough to tick the</SPAN><BR /><SPAN>".gdb" checkbox.</SPAN><BR /><SPAN> </SPAN><BR /><SPAN>- V</SPAN><BR /><SPAN> </SPAN><BR /><SPAN>"The nice thing about standards is that there are so many of them to choose from."</SPAN><BR /><SPAN>-- Andrew S. Tanenbaum</SPAN></BODY></HTML> Wed, 30 Mar 2011 11:01:36 GMT https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759057#M42653 VinceAngelo 2011-03-30T11:01:36Z Re: Documentation for geodatabase structure https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759058#M42654 <HTML><HEAD></HEAD><BODY><SPAN>ok! thank you! </SPAN><BR /><BR /><SPAN>Nice quote by the way!</SPAN></BODY></HTML> Thu, 31 Mar 2011 05:52:24 GMT https://community.esri.com/t5/data-management-questions/documentation-for-geodatabase-structure/m-p/759058#M42654 MateiPaul 2011-03-31T05:52:24Z