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declare cursor myCursor is select * from ±íÃû;
myRow myCursor%rowtype;
begin
open myCursor;
loop
fetch myCursor into myRow;
exit when myCursor%notfound;
--ÒªÖ´ÐеÄSQLÓï¾ä
end loop;
end;


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

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 We ......

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blobÖ»ÄÜ´æ2µÄ16´Î·½¸öbyte,
mediumblodÊÇ24´Î·½,
Ò»°ãÀ´Ëµ¹»ÓÃÁË.longblobÊÇ32´Î·½ÓÐЩ´ó.
MYSQLĬÈÏÅäÖÃÖ»ÄÜ´æ1M´óСµÄÎļþ,ÒªÐÞ¸ÄÅäÖÃ,WIN°æ±¾µÄÔÚmysql.iniÎļþÖÐ
ÐÞ¸Ämax_allowed_packet,net_buffer_lengthµÈ¼¸¸ö²ÎÊý,»òÖ±½ÓSET GLOBAL varName=value.
linux°æ± ......

Oracle EXP/IMP µ¼³öµ¼È빤¾ßµÄʹÓÃ


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   expµ¼³ö¹¤¾ß½«Êý¾Ý¿âÖÐÊý¾Ý±¸·ÝѹËõ³ÉÒ»¸ö¶þ½øÖÆÏµÍ³Îļþ.¿ÉÒÔÔÚ²»Í¬OS¼äÇ¨ÒÆ
   
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