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01.게시판
게시판 [69]
02.File Book
File 자료실 [95]
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03.Field Book
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ORACLE [2888]
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기타정보 [150]
운영체제 [577]
04.Q/A Book
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05.방명록
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IOTN :: Field Book :: ORACLE

 회원가입

clob to file / file to clob / clob_to_file / file_to_clob
최길호 [LIST]   2022-06-17 09:40:43, 조회 : 22


select 'select /* '||data_type||' */ '||column_name||' from '||owner||'.'||table_name||' where rownum < 5;' from
dba_tab_cols where data_type in ('CLOB')
and table_name not in ('PLAN_TABLE')
and owner in ('SCOTT')
order by owner,table_name,column_name;

// https://oracle-base.com/articles/8i/export-clob
create or replace procedure clob_to_file (p_clob      in  clob,
                                          p_dir       in  varchar2,
                                          p_filename  in  varchar2)
as
  l_file    utl_file.file_type;
  l_buffer  varchar2(32767);
  l_amount  binary_integer := 32767;
  l_pos     integer := 1;
begin
  l_file := utl_file.fopen(p_dir, p_filename, 'w', 32767);

  loop
    dbms_lob.read (p_clob, l_amount, l_pos, l_buffer);
    utl_file.put(l_file, l_buffer);
    utl_file.fflush(l_file);
    l_pos := l_pos + l_amount;
  end loop;
exception
  when no_data_found then
    -- expected end.
    if utl_file.is_open(l_file) then
      utl_file.fclose(l_file);
    end if;
  when others then
    if utl_file.is_open(l_file) then
      utl_file.fclose(l_file);
    end if;
    raise;
end clob_to_file;
/

select * from dba_directories;

declare
  l_id varchar2(1000);
  l_clob  clob;
cursor c1 is
  select ESHTSHKY,ESHTDATA
  from   SCOTT.ESHDOC;
begin
OPEN c1;
loop fetch c1 into l_id,l_clob;
exit when c1%notfound;
if ( length(l_clob) > 1 )then
  clob_to_file(p_clob     => l_clob,
               p_dir      => 'EXPDP',
               p_filename => l_id );
end if;
end loop;
close c1;
end;
/

// https://oracle-base.com/articles/8i/import-clob
CREATE OR REPLACE PROCEDURE file_to_clob (p_clob      IN OUT NOCOPY CLOB,
                                          p_dir       in  varchar2,
                                          p_filename  in  varchar2)
as
  l_bfile  bfile;

  l_dest_offset   integer := 1;
  l_src_offset    integer := 1;
  l_bfile_csid    number  := 0;
  l_lang_context  integer := 0;
  l_warning       integer := 0;
begin
  l_bfile := bfilename(p_dir, p_filename);
  dbms_lob.fileopen(l_bfile, dbms_lob.file_readonly);
  dbms_lob.trim(p_clob, 0);
  dbms_lob.loadclobfromfile (
    dest_lob      => p_clob,
    src_bfile     => l_bfile,
    amount        => dbms_lob.lobmaxsize,
    dest_offset   => l_dest_offset,
    src_offset    => l_src_offset,
    bfile_csid    => l_bfile_csid ,
    lang_context  => l_lang_context,
    warning       => l_warning);
  dbms_lob.fileclose(l_bfile);
end file_to_clob;
/


declare
  l_id varchar2(1000);
  l_clob  clob;
cursor c1 is
  select ESHTSHKY,ESHTDATA
  from   SCOTT.ESHDOC for update;
begin
OPEN c1;
loop fetch c1 into l_id,l_clob;
exit when c1%notfound;
if ( length(l_clob) > 1 )then
  file_to_clob(p_clob     => l_clob,
               p_dir      => 'EXPDP',
               p_filename => l_id );
end if;
end loop;
close c1;
end;
/


ORA-22920: row containing the LOB value is not locked
ORA-06512: at "SYS.DBMS_LOB", line 803
ORA-06512: at "SYS.FILE_TO_CLOB", line 15
-> from tbname FOR UPDATE; 추가
3.235.78.122


  LIST

제목 작성자 작성일 조회
Admin  [ 공지 ] 😃 서비스 시간 08:00 ~ 23:00 / 안되면 나중에 다시 방문 해주세요~.😅    최길호 2008/11/26 113
Admin  [ 필요 하신게 있으시면 쪽지 또는 gilho.kr@gmail.com 메일 주세요~ ]    최길호 2006/07/14 134
Troubleshoot  DDE: Problem Key 'ORA 600 [13310]' was completely flood controlled (0x6)    최길호 2022/06/29 2
Oracle GoldenGate  Replication may not be valid if the source data has an incompatible character for the target NLS_LANG character set.    최길호 2022/06/25 12
Admin  ORA-14452: attempt to create, alter or drop an index on temporary table already in use    최길호 2022/06/24 6
Admin  external table expdp    최길호 2022/06/18 24
Admin  clob to file / file to clob / clob_to_file / file_to_clob    최길호 2022/06/17 22
Troubleshoot  ORA-13203: failed to read USER_SDO_GEOM_METADATA view    최길호 2022/06/14 17
Troubleshoot  ORA-13249: SRID 5186 does not exist in MDSYS.CS_SRS table    최길호 2022/06/13 21
Troubleshoot  Exception in kzam_upd_props, 942:ORA-00942: table or view does not exist    최길호 2022/06/11 20
Install and Config  Rocky Linux 8.6 Oracle 11.2    최길호 2022/06/03 28
Admin  RMAN-20207: UNTIL TIME or RECOVERY WINDOW is before RESETLOGS time    최길호 2022/06/02 30
Admin  http://mirror.centos.org/centos/7/os/x86_64/Packages/compat-libstdc++-33-3.2.3-72.el7.x86_64.rpm    최길호 2022/05/30 21
Admin  한글 파일 ORA-22288: 파일 또는 LOB FILEOPEN 작업이 실패되었습니다    최길호 2022/05/26 36
Admin  ORA-00001: unique constraint (SCOTT.TEST_PK) violated    최길호 2022/05/06 212
Troubleshoot  windows ORA-01031: insufficient privileges    최길호 2022/04/22 56
Admin  impdp ORA-01400: cannot insert NULL into , ORA-01449: column contains NULL    최길호 2022/04/19 52

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