how to insert the bytearray file into a sql table

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Create procedure pname
(
@data varbinary(max)
)
as
Insert statement
end

Convert byte file into byte array
byte[] _data;
private void PreapareByteArray()
    {
        if (FileUpload1.HasFile)
        {
            using (BinaryReader reader = new BinaryReader(FileUpload1.PostedFile.InputStream))
            {
               _data = reader.ReadBytes(FileUpload1.PostedFile.ContentLength);

   
            }
        }
    }
Pass this _data to insert statement it will insert byte array to sql table.