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

Oracle ÅúÁ¿µ¼ÈëSequence

 select 'create sequence '||sequence_name||  
       ' minvalue '||min_value||  
       ' maxvalue '||max_value||  
       ' start with '||last_number||  
       ' increment by '||increment_by||  
       (case when cache_size=0 then ' nocache' else ' cache '||cache_size end) ||';'  //Õâ¸öÊÇʵʱµÄSequence
from user_sequences
select  d.text,d.name  from   user_source    d  where  type   ='PROCEDURE' ; //²éѯËùÓд洢¹ý³Ì
SELECT DBMS_METADATA.GET_DDL(U.OBJECT_TYPE, u.object_name)
  from USER_OBJECTS u
 where U.OBJECT_TYPE IN ('TABLE','INDEX','PROCEDURE','sequence');//µÃµ½Ò»¸öÓû§ÏµÄËùÓÐ±í£¬Ë÷Òý£¬´æ´¢¹ý³Ì,sequence .......µÄddl


Ïà¹ØÎĵµ£º

oracle ÖеÄminus

 minusÔËËã
·µ»ØÔÚµÚÒ»¸ö²éѯ½á¹ûÖÐÓëµÚ¶þ¸ö²éѯ½á¹û²»ÏàͬµÄÄDz¿·ÖÐмǼ¡£
ÓÐÄÄЩ¹¤ÖÖÔڲƻᲿÖÐÓУ¬¶øÔÚÏúÊÛ²¿ÖÐûÓУ¿
exp:selectjobfromaccount
minus
selectjobfromsales;
ÓëunionÏà·´ ......

ORACLE ÕýÔò±í´ïʽ

¾ÍÊÇÓÉÆÕͨ×Ö·û£¨ÀýÈç×Ö·ûaµ½z£©ÒÔ¼°ÌØÊâ×Ö·û£¨³ÆÎªÔª×Ö·û£©×é³ÉµÄÎÄ×Öģʽ¡£¸ÃģʽÃèÊöÔÚ²éÕÒÎÄ×ÖÖ÷Ìåʱ´ýÆ¥ÅäµÄÒ»¸ö»ò¶à¸ö×Ö·û´®¡£ÕýÔò±í´ïʽ×÷Ϊһ¸öÄ£°å£¬½«Ä³¸ö×Ö·ûģʽÓëËùËÑË÷µÄ×Ö·û´®½øÐÐÆ¥Åä¡£
±¾ÎÄÏêϸµØÁгöÁËÄÜÔÚÕýÔò±í´ïʽÖÐʹÓã¬ÒÔÆ¥ÅäÎı¾µÄ¸÷ÖÖ×Ö·û¡£µ±ÄãÐèÒª½âÊÍÒ»¸öÏÖÓеÄÕýÔò±í´ïʽʱ£¬¿ÉÒÔ×÷Ϊһ¸ö¿ ......

OracleÊý¾Ý¿âÖеÄ''ÓëNULLµÄ¹ØÏµ

ÔÚOracleÊý¾Ý¿âÖÐ''ÓëNULLÊǵȼ۵ġ£¾ù±íʾ¿ÕÖµ£¬¶ø²»ÊÇÀàËÆÆäËûÊý¾Ý¿âÉÏ''±íʾ¿Õ´®£¬NULL±íʾ¿ÕÖµ¡£
 
ORACLEÔÊÐíÈκÎÒ»ÖÖÊý¾ÝÀàÐ͵Ä×Ö¶ÎΪ¿Õ£¬³ýÁËÒÔÏÂÁ½ÖÖÇé¿ö£º
1¡¢Ö÷¼ü×ֶΣ¨primary key£©£¬
2¡¢¶¨ÒåʱÒѾ­¼ÓÁËNOT NULLÏÞÖÆÌõ¼þµÄ×Ö¶Î
 
˵Ã÷£º
1¡¢NULLµÈ¼ÛÓÚûÓÐÈκÎÖµ¡¢ÊÇδ֪Êý¡£
2¡¢NULLÓë ......

Î人Ӣ˼¹¤³Ì¿Æ¼¼ÓÐÏÞ¹«Ë¾–ORACLEÃæÊÔ²âÊÔÌâÄ¿

1£®    ½âÊÍFUNCTION£¬PROCEDUREºÍPACKAGEÇø±ð
´ð£ºfunction ºÍprocedureÊÇPL/SQL´úÂëµÄ¼¯ºÏ£¬Í¨³£ÎªÁËÍê³ÉÒ»¸öÈÎÎñ¡£procedure ²»ÐèÒª·µ»ØÈκÎÖµ¶øfunction½«·µ»ØÒ»¸öÖµÔÚÁíÒ»·½Ã棬PackageÊÇΪÁËÍê³ÉÒ»¸öÉÌÒµ¹¦ÄܵÄÒ»×éfunctionºÍprocedureµÄ¼¯ºÏ¡£
2£®    È¡Ä³¸öÐòÁеĵ±Ç°ÖµµÄPL/SQLÓï ......

OracleÊý¾Ý¿â×Ô¶¨ÒåÒì³£µÄʹÓ÷½·¨

 À´Ô´£º²»Ïê  ×÷ÕߣºØýÃû  Ê±¼ä£º2009-9-6 17:14:04 Tags£º Orac ʹÓ÷½·¨
ÐèÇó£ºÒµÎñÂß¼­ÔÚ´¦ÀíÊý¾Ýʱ£¬ÐèÒª·µ»ØMessage²¢×èÖ¹³ÌÐòµÄ¼ÌÐøÔËÐС£µ«ÊÇ£¬ÔÚ´æ´¢¹ý³ÌʹÓÃOracleÊý¾Ý¿âµÄRaise¸ù±¾ÎÞ·¨Âú×ãÏÖÔÚµÄÒªÇó¡£
½â¾ö·½·¨£º
ʹÓÃRAISE_APPLICATION_ERROR
RAISE_APPLICATION_ERROR ( erro ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ