Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

ORACLE PL/SQL ´æ´¢¹ý³Ì½Ì³Ì


(1)SEQNAME.NEXTVALÀïÃæµÄÖµÈçºÎ¶Á³öÀ´£¿¿ÉÒÔÖ±½ÓÔÚinsert into test values(SEQNAME.NEXTVAL) ÊÇ¿ÉÒÔÓà  ÕâÑù£º     
SELECT tmp#_seq.NEXTVAL
        INTO id_temp
        from DUAL;  È»ºó¿ÉÒÔÓÃid_temp
(2)PLS-00103: ³öÏÖ·ûºÅ ">"ÔÚÐèÒªÏÂÁÐ֮һʱ£º
´úÂëÈçÏ£º     
 IF (sum>0)
      THEN
   begin
         INSERT INTO emesp.tp_sn_production_log
              VALUES (r_serial_number, , id_temp);
         EXIT;
    end; 
Ò»Ö±±¨sum>0 ÕâÊǸöºÜÓôÃÆµÄÎÊÌâ ÒòΪ±äÁ¿ÓÃÁËsum  ËùÒÔ²»ÐУ¬ºó¸ÄΪi_sum>0
(3)oracle Óï·¨
1. OracleÓ¦Óñ༭·½·¨¸ÅÀÀ
´ð£º1) Pro*C/C++/... : CÓïÑÔºÍÊý¾Ý¿â´ò½»µÀµÄ·½·¨£¬±ÈOCI¸ü³£ÓÃ;
    2) ODBC
    3) OCI: CÓïÑÔºÍÊý¾Ý¿â´ò½»µÀµÄ·½·¨£¬ºÍProCºÜÏàËÆ£¬¸üµ×²ã£¬ºÜÉÙÓÃ;
    4) SQLJ: ºÜеÄÒ»ÖÖÓÃJava·ÃÎÊOracleÊý¾Ý¿âµÄ·½·¨£¬»áµÄÈ˲»¶à;
    5) JDBC
    6) PL/SQL: ´æ´¢ÔÚÊý¾ÝÄÚÔËÐÐ, ÆäËû·½·¨ÎªÔÚÊý¾Ý¿âÍâ¶ÔÊý¾Ý¿â·ÃÎÊ;
2. PL/SQL
´ð£º1) PL/SQL(Procedual language/SQL)ÊÇÔÚ±ê×¼SQLµÄ»ù´¡ÉÏÔö¼ÓÁ˹ý³Ì»¯´¦ÀíµÄÓïÑÔ;
    2) Oracle¿Í»§¶Ë¹¤¾ß·ÃÎÊOracle·þÎñÆ÷µÄ²Ù×÷ÓïÑÔ;
    3) Oracle¶ÔSQLµÄÀ©³ä;
4. PL/SQLµÄÓÅȱµã
´ð£ºÓŵ㣺
    1) ½á¹¹»¯Ä£¿é»¯±à³Ì£¬²»ÊÇÃæÏò¶ÔÏó;
    2) Á¼ºÃµÄ¿ÉÒÆÖ²ÐÔ(²»¹ÜOracleÔËÐÐÔÚºÎÖÖ²Ù×÷ϵͳ);
    3) Á¼ºÃµÄ¿Éά»¤ÐÔ(±àÒëͨ¹ýºó´æ´¢ÔÚÊý¾Ý¿âÀï);
    4) ÌáÉýϵͳÐÔÄÜ;
    µÚ¶þÕÂ
PL/SQL³ÌÐò½á¹¹
1. PL/SQL¿é
´ð£º1) ÉêÃ÷²¿·Ö, DECLARE(²»¿ÉÉÙ);
    2) Ö´Ðв¿·Ö, BEGIN...END;
    3) Òì³£´¦Àí£¬EXCEPTION(¿ÉÒÔûÓÐ);
2. PL/SQL¿ª·¢»·¾³
´ð£º¿ÉÒÔÔËÓÃÈκδ¿Îı¾µÄ±à¼­Æ÷±à¼­£¬ÀýÈ磺VI  &


Ïà¹ØÎĵµ£º

¡°ÓÅÐãʾÀý¡±: Oracle´úÂë¹æ³Ì

 ÔÚPL/SQLÖÐʹÓÃÕóÁд¦ÀíÊÇÒ»¸öºÜºÃµÄ×ö·¨(È磬ʹÓÃbulk collectºÍforall)¡£ÅúÁ¿´¦ÀíÄܹ»´ó´ó¼õÉÙPL/SQLÓï¾äÖ´ÐÐÒýÇæµÄ»·¾³Çл»´ÎÊý£¬´Ó¶øÌá¸ßÆäÐÔÄÜ¡£
¡¡¡¡ÁíÒ»¸öÓÅÐãʾÀýÊǰѴ洢¹ý³ÌÖеÄËùÓдúÂë·ÅÈëËø¶¨µÄÈí¼þ°üÖУ¬ÕâÑù¿ÉÒÔÉú³ÉÄ£¿éµ¥Ôª¡£°Ñ´æ´¢¹ý³Ì·ÅÈëÈí¼þ°üÀï¿ÉÒÔʵÏÖÏà¹Ø³ÌÐòºÍ¹¦ÄܵķÖ×é¡£µ±
µ¥¸ö°ü±»Ê¹Óà ......

OracleÊý¾Ýµ¼Èëµ¼³öimp/expÃüÁî [ת]

OracleÊý¾Ýµ¼Èëµ¼³öimp/exp¾ÍÏ൱ÓÚoracleÊý¾Ý»¹Ô­Ó뱸·Ý¡£expÃüÁî¿ÉÒÔ°ÑÊý¾Ý´ÓÔ¶³ÌÊý¾Ý¿â·þÎñÆ÷µ¼³öµ½±¾µØµÄdmpÎļþ£¬impÃüÁî¿ÉÒÔ°ÑdmpÎļþ´Ó±¾µØµ¼Èëµ½Ô¶´¦µÄÊý¾Ý¿â·þÎñÆ÷ÖС£ ÀûÓÃÕâ¸ö¹¦ÄÜ¿ÉÒÔ¹¹½¨Á½¸öÏàͬµÄÊý¾Ý¿â£¬Ò»¸öÓÃÀ´²âÊÔ£¬Ò»¸öÓÃÀ´ÕýʽʹÓá£
 
Ö´Ðл·¾³£º¿ÉÒÔÔÚSQLPLUS.EXE»òÕßDOS£¨ÃüÁîÐУ©ÖÐÖ´Ð ......

Virtual Columns in Oracle Database 11g

When queried, virtual columns appear to be normal table columns, but
their values are derived rather than being stored on disc. The syntax
for defining a virtual column is listed below.
column_name [datatype] [GENERATED ALWAYS] AS (expression) [VIRTUAL]
If the datatype is omitted, it is determin ......

sql ²éÑ¯ÖØ¸´¼Ç¼2


========µÚһƪ=========
ÔÚÒ»ÕűíÖÐij¸ö×Ö¶ÎÏÂÃæÓÐÖØ¸´¼Ç¼£¬Óкܶ෽·¨£¬µ«ÊÇÓÐÒ»¸ö·½·¨£¬ÊDZȽϸßЧµÄ£¬ÈçÏÂÓï¾ä£º
select data_guid from adam_entity_datas a where a.rowid > (select min(b.rowid) from adam_entity_datas b where b.data_guid = a.data_guid)
Èç¹û±íÖÐÓдóÁ¿Êý¾Ý£¬µ«ÊÇÖØ¸´Êý¾Ý±È½ÏÉÙ£¬ÄÇô ......

sql 2000ºÍ2005 ¸´ÖÆÊý¾Ý ·¢²¼Óë¶©ÔÄ

2000·¢²¼Óë¶©ÔÄ
Ô¤±¸¹¤×÷
1.·¢²¼·þÎñÆ÷,¶©ÔÄ·þÎñÆ÷¶¼´´½¨Ò»¸öͬÃûµÄwindowsÓû§,²¢ÉèÖÃÏàͬµÄÃÜÂë,×öΪ·¢²¼¿ìÕÕÎļþ¼ÐµÄÓÐЧ·ÃÎÊÓû§
--¹ÜÀí¹¤¾ß
--¼ÆËã»ú¹ÜÀí
--Óû§ºÍ×é
--ÓÒ¼üÓû§
--н¨Óû§  
--½¨Á¢Ò»¸öÁ¥ÊôÓÚadministrator×éµÄµÇ½windowsµÄÓû§£¨SynUser£©
2.ÔÚ·¢²¼·þÎñÆ÷ÉÏ,н¨Ò»¸ö¹²ÏíĿ¼ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ