sqlbulkcopy from Excel via ACE.OLEDB truncates text to 255 chars

Question

Pretty straight-forward import using SqlBulkCopy:

string excelConnectionString = @\"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=\" + filePath + \";Extended Pro         


        

Answer 1

I used ODBC instead of the OLEDB and it doesn't truncate the values to 255 symbols anymore:

OdbcConnection con = new OdbcConnection(@"Driver={Microsoft Excel Driver
(*.xls)};DBQ=c:\temp\testbook.xls");
OdbcCommand cmd = new OdbcCommand(@"SELECT * FROM [Workbook1$]");
cmd.Connection = con;
OdbcDataAdapter da = new OdbcDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);

you can use 2007 format driver to access XLSX files: .... Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)} …