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Oracle È¡µÃµ±Ìì0ʱ0·Ö0ÃëºÍ23ʱ59·Ö59Ãë

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select TRUNC(SYSDATE) from dual;
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SELECT TRUNC(SYSDATE)+1-1/86400 from dual;
--È¡µÃµ±Ç°ÈÕÆÚÊÇÒ»¸öÐÇÆÚÖеĵڼ¸Ìì,×¢Ò⣺ÐÇÆÚÈÕÊǵÚÒ»Ìì
select to_char(sysdate,'D'),to_char(sysdate,'DAY') from dual;
--ÔÚoracleÖÐÈçºÎµÃ ......

Oracle ÊÕ¹ºSunÖ®ºóµÄÑÝÒ壺IBM ºÍSAPºÎÈ¥ºÎ´Ó

SunÖÕÓÚµ¹ÏÂÁË£¬Ò»¸ö²»µ«´´Ôì¼¼ÊõÉñ»°£¬¸øÊÀ½çIT¼¼Êõ´øÀ´¸ïÃüÐÔÓ°ÏìµÄ¹«Ë¾µ¹ÏÂÁË£¬ÎÒ»³ÄîËü¡£
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¼¼Êõ¿ÉÄܻᱻORACLE¹«Ë¾µÄÓªÏúÄÜÁ¦·½·¨£¬Ê¹SUNµ ......

OracleËæ»úº¯Êý—dbms_random

1.»ù´¡ÈÏʶ   
  
DBMS_RANDOM°üµÄÏêϸÐÅÏ¢£º   
     select text   from all_source    
      where name = 'DBMS_RANDOM'    
    ......

Oracle9ÖÐXML SQL Utility¼¼ÊõÖ¸µ¼(java)

¡ö     ¿ª·¢Ç°ÒªÇóÅäÖÃ
¡ö     Select XML¸ñʽÊý¾Ý
¡ö     Insert XML¸ñʽÊý¾Ý
¡ö     Updata XML¸ñʽÊý¾Ý
¡ö     Delete XML¸ñʽÊý¾Ý
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classes111.zip ......

oracle¼òµ¥Óï·¨±Ê¼Ç


 
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DML Data manipulation language
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SELECT [DISTINCT] *|ÁÐxx [AS] "±ðÃûxx"[,ÁÐxx "±ðÃûxx"...]
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