oracle怎么把表导出为txt文件

1.plsqldev 里面有一个选项可以把表以excel格式到时

2.使用spool

[sql] view plain copy
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<100;
spool off;

#输出的test.txt文件头尾要编辑下
#set term off 只有在使用.sql脚本文件时才起作用，如上虽然指定了 set term off但是还是会把结果输出，也就是说set term off设置只对sql脚本有用

3.使用UTL_FILE程序包

##UTL_FILE.FOPEN第一个参数为文件路径，不能直接指定绝对路径，需要建立directory，然后指定我们建立的directory
sqlplus / as sysdba
create directory MY_DIR as '/home/oracle/';
grant read,write on directory dir_dump to HR;##也可以直接建立一个public directory

[sql] view plain copy
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;
/