Oracle导出文本文件的三种方法(spool,UTL_FILE,sqluldr2)

ALTER TABLESPACE DAMS_DATA 
  ADD DATAFILE 'C:\Oracle\oradata\orcl\DAMADATA2.DBF' 
 SIZE 500M AUTOEXTEND ON MAXSIZE 6000M; 

CREATE TABLE record10w
(
        id      INT,
        data1   CHAR(1000),
        data2   CHAR(1000),
        data3   CHAR(1000),
        data4   CHAR(1000)
);
INSERT INTO record10w
SELECT a.rn,
       DBMS_RANDOM.STRING ('u', 5), --大写字母随机
       DBMS_RANDOM.STRING ('l', 5), --小写字母随机
       DBMS_RANDOM.STRING ('a', 5), --混合字母随机
       DBMS_RANDOM.STRING ('x', 5)  --字符串数字随机
     --DBMS_RANDOM.STRING ('p', 5) --键盘字符随机
  FROM (SELECT level,ROWNUM rn 
          FROM DUAL
       CONNECT BY ROWNUM<=100000) a;
--27 seconds       
COMMIT;     
CREATE TABLE record50w
(
        id      INT,
        data1   CHAR(1000),
        data2   CHAR(1000),
        data3   CHAR(1000),
        data4   CHAR(1000)
);
INSERT INTO record50w
SELECT a.rn,
       DBMS_RANDOM.STRING ('u', 5), --大写字母随机
       DBMS_RANDOM.STRING ('l', 5), --小写字母随机
       DBMS_RANDOM.STRING ('a', 5), --混合字母随机
       DBMS_RANDOM.STRING ('x', 5)  --字符串数字随机
     --DBMS_RANDOM.STRING ('p', 5) --键盘字符随机
  FROM (SELECT level,ROWNUM rn 
          FROM DUAL
       CONNECT BY ROWNUM<=500000) a;
--164 seconds       
COMMIT; 

ANALYZE TABLE RECORD10W COMPUTE STATISTICS;  
ANALYZE TABLE RECORD50W COMPUTE STATISTICS;  

SELECT A.OWNER,A.TABLE_NAME,A.TABLESPACE_NAME,A.NUM_ROWS,A.BLOCKS,A.EMPTY_BLOCKS,A.AVG_ROW_LEN
  FROM ALL_TABLES A 
 WHERE OWNER='METADATA' 
   AND TABLE_NAME IN ('RECORD10W','RECORD50W') 

SPOOL C:\software\sqluldr2\data\record10wspool.txt 
SET ECHO OFF  --不显示脚本中正在执行的SQL语句
SET FEEDBACK OFF --不显示sql查询或修改行数
SET TERM OFF   --不在屏幕上显示
SET HEADING OFF  --不显示列
SET LINESIZE 1000; //设置行宽，根据需要设置，默认100
select id||','||data1|| ',' ||data2 FROM record10w;  --需要导出的数据查询sql
SPOOL OFF

SPOOL C:\software\sqluldr2\data\record10wspool.txt 
SET ECHO OFF  --不显示脚本中正在执行的SQL语句
SET FEEDBACK OFF --不显示sql查询或修改行数
SET TERM OFF   --不在屏幕上显示
SET HEADING OFF  --不显示列
SET LINESIZE 1000; //设置行宽，根据需要设置，默认100
select id||','||data1|| ',' ||data2 FROM record50w;  --需要导出的数据查询sql
SPOOL OFF

SQL> set time on;
18:09:32 SQL> @C:\software\sqluldr2\spool10w.sql
Started spooling to C:\software\sqluldr2\data\record10wspool.txt
--20秒
18:09:51 SQL> @C:\software\sqluldr2\spool50w.sql
18:10:52 SQL> 
--1分1秒

sqlplus / as sysdba

set linesize 1000
set pagesize 0
set echo off
set termout off
set heading off
set feedback off
SET trims ON
set term off
SET trimspool ON
SET trimout ON
spool '/archlog/exp/test.txt';
select OWNER||' , '||SEGMENT_NAME||' , '||PARTITION_NAME||' , ' from dba_segments where rownum<10000;
spool off;
/

CREATE OR REPLACE PROCEDURE test
 IS
testjiao_handle UTL_FILE.file_type;
BEGIN
  test_handle := UTL_FILE.FOPEN('MY_DIR','test.txt','w');
    FOR x IN (SELECT * FROM TESTJIAO) LOOP
      UTL_FILE.PUT_LINE(test_handle,x.ID || ',' || x.RQ ||',');
    END LOOP;
      UTL_FILE.FCLOSE(test_handle);
EXCEPTION WHEN OTHERS THEN
  DBMS_OUTPUT.PUT_LINE(SUBSTR(SQLERRM,1,2000));
END;
/

c:\software\sqluldr2>sqluldr264
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  #连接用户/密码@tns名称
   sql     = SQL file name      #指定SQL文件名
   query   = select statement #指定SQL语句
   field   = separator string between fields    #指定字段分隔符
   record  = separator string between records   #指定记录换行符
   rows    = print progress for every given rows (default, 1000000)     #输出导出记录日志
   file    = output file name(default: uldrdata.txt)    #导出数据文件名
   log     = log file name, prefix with + to append mode        #导出日志文件名
   fast    = auto tuning the session level parameters(YES)      #快速导出参数
   text    = output type (MYSQL, CSV, MYSQLINS, ORACLEINS, FORM, SEARCH).       #导出类型
   charset = character set name of the target database. #设置目标数据库字符集
   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

c:\software\sqluldr2>time
当前时间: 18:14:07.92
c:\software\sqluldr2>sqluldr264 metadata/XXXXXX@127.0.0.1:1521/orcl query="select id,data1,data2 from record50w" head=yes file=C:\software\sqluldr2\data\record50wsqluldr2.csv log=C:\software\sqluldr2\log\record50wsqluldr2.log table=record50w
c:\software\sqluldr2>time
当前时间: 18:14:26.40 
--19秒

c:\software\sqluldr2>time
当前时间: 18:14:36.83
c:\software\sqluldr2>sqluldr264 metadata/XXXXXX@127.0.0.1:1521/orcl query="select id,data1,data2 from record10w" head=yes file=C:\software\sqluldr2\data\record10wsqluldr2.csv log=C:\software\sqluldr2\log\record10wsqluldr2.log table=record10w
c:\software\sqluldr2>time
当前时间: 18:14:43.05
--7秒