SQL Server CSV Import – How to Import Quoted CSV Files

It is technically possible, yes. But you may be able to leverage performance gains by having multiple files on multiple disks as opposed to just one file. Why not try using one file and see if it works, and what the performance is like?

Here is a link for info on BULK INSERT: http://msdn.microsoft.com/en-us/library/ms188365.aspx

From what you are describing it sounds like you needs to provide the BULK INSERT command a format file so it knows how to parse your data. You can use the bcp command to auto-generate one for you, however I have always had to edit them afterwards before they work properly. (Lots of testing I am afraid).

The links below should be good starting points for you:

Format Files: http://msdn.microsoft.com/en-us/library/ms190393.aspx

BCP: http://msdn.microsoft.com/en-us/library/ms162802.aspx

BULK INSERT: http://msdn.microsoft.com/en-us/library/ms188365.aspx

EXAMPLE: http://msdn.microsoft.com/en-us/library/ms178129.aspx

I hope this helps you.

EDIT

Based on the extra information that you have added above it looks like you have set all field terminators to pipes, which is not what you want. You will need to edit the format file on a per column basis.

For instance, in the example above your first two columns are delimited by a semi-colon. The third would need to be delimited by ";|". Here is an example of what I mean for the first few columns:

9.0 
18 
1       SQLCHAR       0       510     ";"     1     web1numdoss 
2       SQLCHAR       0       510     ";"     2     web1dem 
3       SQLCHAR       0       510     ";|"     3     web1def 
...
18      SQLCHAR       0       510     "\r\n"   18    Col018