在linux下导出 csv，dat，txt 等各种详单数据(只针对大数据量导出)

[root@racdb1 tmp]# ls
sqluldr2_linux64_10204.bin
[root@racdb1 tmp]# ./sqluldr2_linux64_10204.bin 


SQL*UnLoader: Fast Oracle Text Unloader (GZIP, Parallel), Release 4.0.1
(@) Copyright Lou Fangxin (AnySQL.net) 2004 - 2010, all rights reserved.


License: Free for non-commercial useage, else 100 USD per server.


Usage: SQLULDR2 keyword=value [,keyword=value,...]


Valid Keywords:
   user    = username/password@tnsname
   sql     = SQL file name
   query   = select statement
   field   = separator string between fields
   record  = separator string between records
   rows    = print progress for every given rows (default, 1000000) 
   file    = output file name(default: uldrdata.txt)
   log     = log file name, prefix with + to append mode
   fast    = auto tuning the session level parameters(YES)
   text    = output type (MYSQL, CSV, MYSQLINS, ORACLEINS, FORM, SEARCH).
   charset = character set name of the target database.
   ncharset= national character set name of the target database.
   parfile = read command option from parameter file 


  for field and record, you can use '0x' to specify hex character code,
  \r=0x0d \n=0x0a |=0x7c ,=0x2c, \t=0x09, :=0x3a, #=0x23, "=0x22 '=0x27 


[root@racdb1 tmp]# ls

--导出命令

[root@racdb1 tmp]# ls
sqluldr2_linux64_10204.bin
[root@racdb1 tmp]# pwd
/home/data/tmp
[root@racdb1 tmp]# ./sqluldr2_linux64_10204.bin USER=用户名/密码@ip:1521/sid QUERY="select   /*+ parallel(8)  */  a||'|'||b from cs_xxx dt  where rownum<10 " head=no FILE=/home/data/tmp/cs_xxx.dat
       0 rows exported at 2013-02-19 11:11:18, size 0 MB.
       9 rows exported at 2013-02-19 11:11:18, size 0 MB.
         output file /home/data/tmp/cs_xxx.dat closed at 9 rows, size 0 MB.
[root@racdb1 tmp]# ll
total 184
-rw-r--r-- 1 root root     28 Feb 19 11:11 cs_xxx.dat
-rwxrwxrwx 1 root root 176170 Feb 19 11:01 sqluldr2_linux64_10204.bin
[root@racdb1 tmp]# more cs_third_cdr.dat 
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2532860098|