The dbSNP FTP site has one big file: “SubInd.bcp” and single files for each chromosome called “SubInd_ch1.bcp” and “SubInd_nhm_ch1.bcp”. What is the difference between these files?
The dbSNP Schema change documentation mentions that as of B127, the SubInd table was replaced with a partitioned view of a set of underlying tables by chromosomes in two separate databases to keep each database size small for ease of maintenance. You must have happened to go to the FTP site before we had a chance to clean up the old files. The updated FTP files should now be available. Information about the SubInd table can also be found in the database dictionary by typing “SubInd” (without the quotation marks) into the text box at the top of the page, selecting the radio buttons marked “TableName” and “contains”, and clicking on the “search” button. When the response page appears, click on “SubInd link located in the TableName column to see a column description for the SubInd table.
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