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String sql = "select t.FILE_INFO from T_FILE_DB_DETAIL t where t.id= "
      + fileDBUpDownDetail.getId() + " for update";
    rs = stmt.executeQuery(sql);
    if (rs.next()) {
     // ÔÚweblogicϲ¿Êðʱ£¬ÐèÒª¸ü¸ÄΪBea WebLogic BLOB¸ñʽ
//     weblogic.jdbc.vendor.oracle.OracleThinBlob blob = (weblogic.jdbc.vendor.oracle.OracleThinBlob) rs
//       .getBlob(1);
     BLOB blob = (BLOB) rs.getBlob(1);
     if (blob != null) {
      out = blob.getBinaryOutputStream();
      byte[] buf = new byte[8192];// 8K »º´æ
      int len;
      while ((len = fileInputStream.read(buf)) > 0) {
       if (out != null) {
        out.write(buf, 0, len);
        out.flush();
       }
      }
     }
    }


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SELECT /*+ rule */ s.username,
decode(l.type,'TM','TABLE LOCK',
'TX','ROW LOCK',
NULL) LOCK_LEVEL,
o.owner,o.object_name,o.object_type,
s.sid,s.serial#,s.terminal,s.machine,s.program,s.osuser
from v$session s,v$lock l,dba_objects o
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