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select r.rollid as rollid from zh1_rool r where r.date_p >=to_date('2009-11-26 23:59:59','yyyy-mm-dd hh24:mi:ss') and rollid not in
(select t.lot_number as rollid
from inv.mtl_onhand_quantities_detail t
left join mtl_system_items_b mi
on t.inventory_item_id = mi.inventory_item_id
where mi.segment1 like '101%' and mi.organization_id = 102)


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Oracle ËÄÉáÎåÈ뺯Êý

ceil(number)   ´óÓÚ»òµÈÓÚµÄ×îСÕûÊý  
  floor(number)   СÓÚ»òµÈÓÚµÄ×î´óÕûÊý  
  trunc(number,m)   ÔÚÕûÊýnumberµÄmλÖýصôm¼°ÒÔºóµÄλÊý:  
  Èç:trunc(15.78,1)=15.7    
        trunc(15.78,-1)=15;  
  round ......

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1. ASCII
·µ»ØÓëÖ¸¶¨µÄ×Ö·û¶ÔÓ¦µÄÊ®½øÖÆÊý;
SQL> select ascii(A) A,ascii(a) a,ascii(0) zero,ascii( ) space from dual;
A A ZERO SPACE
--------- --------- --------- ---------
65 97 48 32
2. CHR
¸ø³öÕûÊý,·µ»Ø¶ÔÓ¦µÄ×Ö·û;
SQL> select chr(54740) zhao,chr(65) chr65 from dual;
ZH C
-- -
ÕÔ A
......

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8192£­ Ðè0.75±¶µÄ½»»¥¿Õ¼ä
ÖÁÉÙ400 MB /tmp ÁÙʱĿ¼¿Õ¼ä
oracleÈí¼þÐèÒª1.5 GB µ½ 3.5 GB ´ÅÅ̿ռä
ĬÈÏÊý¾Ý¿âÐèÒª1.2 GB
¶þ.²é¿´ÏµÍ³×ÊÔ´Ïà¹ØÓï ......

Oracle Workflows Access Protection Concepts

Oracle Workflows Access Protection Concepts
As a workflow developer, you can use access protection to allow or discourage “customers” of your workflows from modifying your “seed data” workflow definitions.
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hibernate¸ù¾Ýʱ¼äÈÕÆÚÀ´²éѯoracleÊý¾Ý¿â

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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-mm-dd"); 
Date startdate = sdf.parse(start_date);
Date enddate = sdf.parse(end_date);
List list = sess.createCriteria(MyTabel.class)
               .add( ......
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