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weblogicÏÂÔÚOracleÖд洢clobÀàÐÍÒ»Àý

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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ORACLE±¸·Ý²ßÂÔ(ORACLE BACKUP STRATEGY)

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OracleÊý¾Ý¿âÖÐÌṩÁËͬÒå´Ê¹ÜÀíµÄ¹¦ÄÜ¡£Í¬Òå´ÊÊÇÊý¾Ý¿â·½°¸¶ÔÏóµÄÒ»¸ö±ðÃû£¬¾­³£ÓÃÓÚ¼ò»¯¶ÔÏó·ÃÎʺÍÌá¸ß¶ÔÏó·ÃÎʵݲȫÐÔ¡£ÔÚʹÓÃͬÒå´Êʱ£¬OracleÊý¾Ý¿â½«Ëü·­Òë³É¶ÔÓ¦·½°¸¶ÔÏóµÄÃû×Ö¡£ÓëÊÓͼÀàËÆ£¬Í¬Òå´Ê²¢²»Õ¼ÓÃʵ¼Ê´æ´¢¿Õ¼ä£¬Ö»ÓÐÔÚÊý¾Ý×ÖµäÖб£´æÁËͬÒå´ÊµÄ¶¨Òå¡£ÔÚOracleÊý¾Ý¿âÖеĴ󲿷ÖÊý¾Ý¿â¶ÔÏó£¬Èç±í¡¢ÊÓͼ¡¢Í ......

Oracle·ÖÎöº¯Êý£¨Í¬±È£¬»·±È£¬Àۼƣ¬»ù±È£©

CREATE TABLE salaryByMonth
(
 employeeNo varchar2(20),
 yearMonth varchar2(6),
 salary number
) ;
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200805', 500);
insert into SALARYBYMONTH (EMPLOYEENO, YEARMONTH, SALARY)
values (1, '200802', 150);
in ......

oracleÖв鿴Óû§È¨ÏÞ

ORACLEÖÐÊý¾Ý×ÖµäÊÓͼ·ÖΪ3´óÀà,     ÓÃǰ׺Çø±ð£¬·Ö±ðΪ£ºUSER£¬ALL ºÍ DBA£¬Ðí¶àÊý¾Ý×ÖµäÊÓͼ°üº¬ÏàËƵÄÐÅÏ¢¡£
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ALL_*£ºÓйØÓû§¿ÉÒÔ·ÃÎʵĶÔÏóµÄÐÅÏ¢£¬¼´Óû§×Ô¼º´´½¨µÄ¶ÔÏóµÄÐÅÏ¢¼ÓÉÏÆäËûÓû§´´½¨µÄ¶ÔÏ󵫸ÃÓû§ÓÐȨ·ÃÎʵÄÐÅÏ¢
DBA_* ......

oracle olapº¯Êý£¨Ðø£©

/*connect byº¯Êý*/
CREATE TABLE TBL_TEST
(
  ID    NUMBER,
  NAME  VARCHAR2(100 BYTE),
  PID   NUMBER                          ......
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