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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


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  9CREATE TABLESPACE data01
 10DATAFILE '/ora ......

SQLºÍORACLEº¯Êý±È½Ï

 
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¡¡1.¾ø¶ÔÖµ
¡¡¡¡ S:SELECT abs(-1) value
¡¡¡¡ O:SELECT abs(-1) value from dual
2.È¡Õû(´ó)
¡¡¡¡ S:SELECT ceiling(-1.001) value
¡¡¡¡ O:SELECT ceil(-1.001) value from dual
3.È¡Õû£¨Ð¡£© ......

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¡£
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connect by prior Ò»¸öºÜºÃÓõÄORACLEµÝ¹éÓï¾ä

select t.*, t.rowid from indicators t start with (t.isleaf='1' and t.rid='26020')
connect by prior t.pid = t.id order by t.inum
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select t.*, t.rowid from indicators t start with (t.pid='0' and t.rid='26020')
connect by prior t.id = t.pid order by t.i ......
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