使用导入导出向导将DAT文件内容导入到SQL Server表中-错误

我有.DAT文件，看起来像下面的格式[没有列名或标题，只有数据]：|| 是分隔符；因此，我有20个字段。

worth||8000||AC8000||Tal||100||IN||O||2014-01-09 00:00:00||||N||N||N||Y||2014-01-09 00:00:00||Y||19991011||N||Internal||||N

我的SQL DB表也有20列。

当我使用导入导出向导时，出现如下错误：

 - Executing (Error)
 Messages
  Error 0xc02020a1: Data Flow Task 1: Data conversion failed. The data conversion for column "Column 0" returned status value 4 and status text "Text was truncated or one or more characters had no match in the target code page.".
 (SQL Server Import and Export Wizard)

  Error 0xc020902a: Data Flow Task 1: The "output column "Column 0" (10)" failed because truncation occurred, and the truncation row disposition on "output column "Column 0" (10)" specifies failure on truncation. A truncation error occurred on the specified object of the specified component.
 (SQL Server Import and Export Wizard)

  Error 0xc0202092: Data Flow Task 1: An error occurred while processing file "H:\servername\Account.20151201.dat\Account.20151201.dat" on data row 109.
 (SQL Server Import and Export Wizard)

 Error 0xc0047038: Data Flow Task 1: SSIS Error Code DTS_E_PRIMEOUTPUTFAILED.  The PrimeOutput method on component "Source - Account_20151201_dat" (1) returned error code 0xC0202092.  The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.  There may be error messages posted before this with more information about the failure.
 (SQL Server Import and Export Wizard)

注意：我在数据库表中的所有列都有255个字符。

请让我知道，该如何解决？如何将其成功导入到数据库。