怎么将一个文本文件导入到sql2005中？

/** 导入文本文件 */
EXEC master..xp_cmdshell 'bcp dbname..tablename in c:\DT.txt -c -Sservername -Usa -Ppassword' 

/** 导出文本文件 */
EXEC master..xp_cmdshell 'bcp dbname..tablename out c:\DT.txt -c -Sservername -Usa -Ppassword' 
或 
EXEC master..xp_cmdshell 'bcp "Select * from dbname..tablename" queryout c:\DT.txt -c -Sservername -Usa -Ppassword' 

/**导出到TXT文本，用逗号分开*/ 
exec master..xp_cmdshell 'bcp "库名..表名" out "d:\tt.txt" -c -t ,-U sa -P password' 


BULK INSERT 库名..表名 
FROM 'c:\test.txt' 
WITH ( 
FIELDTERMINATOR = ';', 
ROWTERMINATOR = '\n' 
)