Oracle BLOB 데이터 replace

아래 글 참고하면 답이 바로 나옵니다.

http://stackoverflow.com/questions/16337814/replacing-text-in-an-blob-column

SQL> CREATE OR REPLACE FUNCTION convert_to_clob(l_blob BLOB) RETURN CLOB IS
  2     l_clob         CLOB;
  3     l_dest_offset  NUMBER := 1;
  4     l_src_offset   NUMBER := 1;
  5     l_lang_context NUMBER := dbms_lob.default_lang_ctx;
  6     l_warning      NUMBER;
  7  BEGIN
  8     dbms_lob.createtemporary(l_clob, TRUE);
  9     dbms_lob.converttoclob(dest_lob     => l_clob,
 10                            src_blob     => l_blob,
 11                            amount       => dbms_lob.lobmaxsize,
 12                            dest_offset  => l_dest_offset,
 13                            src_offset   => l_src_offset,
 14                            blob_csid    => nls_charset_id('AL32UTF8'),
 15                            lang_context => l_lang_context,
 16                            warning      => l_warning);
 17     RETURN l_clob;
 18  END convert_to_clob;
 19  /

Function created

SQL> CREATE OR REPLACE FUNCTION convert_to_blob(l_clob CLOB) RETURN BLOB IS
  2     l_blob         BLOB;
  3     l_dest_offset  NUMBER := 1;
  4     l_src_offset   NUMBER := 1;
  5     l_lang_context NUMBER := dbms_lob.default_lang_ctx;
  6     l_warning      NUMBER;
  7  BEGIN
  8     dbms_lob.createtemporary(l_blob, TRUE);
  9     dbms_lob.converttoblob(dest_lob     => l_blob,
 10                            src_clob     => l_clob,
 11                            amount       => dbms_lob.lobmaxsize,
 12                            dest_offset  => l_dest_offset,
 13                            src_offset   => l_src_offset,
 14                            blob_csid    => nls_charset_id('AL32UTF8'),
 15                            lang_context => l_lang_context,
 16                            warning      => l_warning);
 17     RETURN l_blob;
 18  END convert_to_blob;
 19  /
 

Function created

SQL> UPDATE ape1_item_version
  2     SET DYNAMIC_DATA = convert_to_blob(
  3                          REPLACE(convert_to_clob(DYNAMIC_DATA),
  4                                 'Single period',
  5                                 'Single period period set1')
  6                          )
  7   WHERE NAME = 'PRIT ALL POOL for Duration Telephony 10_NA_G_V_H_N_Z2';
 

1 row updated