锘??xml version="1.0" encoding="utf-8" standalone="yes"?>99久久一区三区四区免费,蜜桃精品在线,国产视频二区在线观看http://www.aygfsteel.com/HsiangYu/category/48055.htmlzh-cnFri, 29 Apr 2011 05:05:49 GMTFri, 29 Apr 2011 05:05:49 GMT60Oracle鍛戒護(hù)http://www.aygfsteel.com/HsiangYu/archive/2011/04/29/349253.htmlHsiangYuHsiangYuFri, 29 Apr 2011 02:02:00 GMThttp://www.aygfsteel.com/HsiangYu/archive/2011/04/29/349253.htmlhttp://www.aygfsteel.com/HsiangYu/comments/349253.htmlhttp://www.aygfsteel.com/HsiangYu/archive/2011/04/29/349253.html#Feedback0http://www.aygfsteel.com/HsiangYu/comments/commentRss/349253.htmlhttp://www.aygfsteel.com/HsiangYu/services/trackbacks/349253.html
  •  1銆?/span>set linesize 100;  璁劇疆闀垮害  
  •  2銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">set pagesize 30;   璁劇疆姣忛〉鏄劇ず鏁扮洰  
  •  3銆乪d a.sql  鎵撳紑璁頒簨鏈?nbsp;   
  •  4銆丂 a 鎵ц鏂囦歡a涓殑浠ｇ爜錛屽彲鎸囧畾鏂囦歡鐨勮礬寰?nbsp;@d:a.txt  
  •  5銆乧onn 鐢ㄦ埛鍚?瀵嗙爜  鏍規(guī)嵁鐢ㄦ埛鍚嶅拰瀵嗙爜榪炴帴鏁版嵁搴?nbsp;濡傛灉榪炴帴瓚呯駭綆＄悊鍛?sys) 鍒欏簲鍔犱笂as sysdba;  
  •  6銆乻how user; 鏄劇ず褰撳墠榪炴帴鐨勭敤鎴?nbsp; 
  •  7銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select * from tab;  寰楀埌褰撳墠鐢ㄦ埛涓嬬殑鎵鏈夎〃  
  •  8銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">desc temp; 鏌ョ湅琛ㄧ粨鏋?nbsp; 
  •  9銆?  緇х畫鎵ц涓婁竴涓煡璇㈣鍙?nbsp; 
  •     clear scr;  娓呭睆  
  •   
  • 瀛楃鍑芥暟  
  • 10銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select upper('coolszy') from dual; 灝嗗皬鍐欏瓧姣嶈漿鎹㈡垚澶у啓錛宒ual 涓轟竴铏氳〃  
  • 11銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select lower('KUKA') from dual; 灝嗗ぇ鍐欏瓧姣嶈漿鎹㈡垚灝忓啓  
  • 12銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select initcap('kuka') from dual; 灝嗛瀛楁瘝澶у啓   
  • 13銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select concat('Hello',' world') from dual; 榪炴帴瀛楃涓詫紝浣嗘病鏈墊|濂界敤select concat('Hello','world') from dual;  
  • 14銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select substr('hello',1,3) from dual; 鎴彇瀛楃涓?nbsp; 
  • 15銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select length('hello') from dual; 姹傚瓧絎︿覆闀垮害  
  • 16銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select replace('hello','l','x') from dual; 鏇挎崲瀛楃涓?nbsp;  
  • 17銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select substr('hello',-3,3) from dual; 鎴彇鍚庝笁浣?nbsp; 
  •   
  • 鏁板煎嚱鏁?nbsp; 
  • 18銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select round(789.536) from dual; 鍥涜垗浜斿叆錛岃垗鍘誨皬鏁?nbsp; 
  • 19銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select round(789.536,2) from dual; 淇濈暀涓や綅灝忔暟  
  • 20銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select round(789.536,-1) from dual; 瀵規(guī)暣鏁拌繘琛屽洓鑸嶄簲鍏?nbsp; 
  • 21銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select trunc(789.536) from dual; 鑸嶅幓灝忔暟錛屼絾涓嶈繘浣?nbsp; 
  • 22銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select trunc(789.536,2) from dual;  
  • 23銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select trunc(789.536,-2) from dual;  
  • 24銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select mod(10,3) from dual; 榪斿洖10%3鐨勭粨鏋?nbsp; 
  •   
  • 鏃ユ湡鍑芥暟  
  • 25銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select sysdate from dual; 榪斿洖褰撳墠鏃ユ湡  
  • 26銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select months_between(sysdate,'16-6鏈?nbsp;-08') from dual; 榪斿洖涔嬮棿鐨勬湀鏁?nbsp; 
  • 27銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select add_months(sysdate,4) from dual; 鍦ㄦ棩鏈熶笂鍔犱笂鏈堟暟  
  • 28銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select next_day(sysdate,'鏄熸湡涓') from dual; 姹備笅涓涓槦鏈熶竴  
  • 29銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select last_day(sysdate) from dual; 姹傛湰鏈堢殑鏈鍚庝竴澶?nbsp; 
  •   
  •   
  • 杞崲鍑芥暟  
  • 30銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select to_char(sysdate,'yyyy') year,to_char(sysdate,'mm'),to_char(sysdate,'dd') from dual;  
  • 31銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select to_char(sysdate,'yyyy-mm-dd') from dual;  
  • 32銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select to_char(sysdate,'fmyyyy-mm-dd') from dual; 鍙栨秷鏈?nbsp;鏃?nbsp;鍓嶉潰鐨?  
  • 33銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select to_char('20394','99,999') from dual; 鍒嗗壊閽?nbsp;9琛ㄧず鏍煎紡  
  • 34銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select to_char('2034','L99,999') from dual; 鍔犱笂閽卞竵絎﹀彿  
  • 35銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select to_number('123')*to_number('2') from dual;  
  • 36銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select to_date('1988-07-04','yyyy-mm-dd') from dual;   
  •   
  • 閫氱敤鍑芥暟  
  • 37銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select nvl(null,0) from dual; 濡傛灉涓?/span>null錛屽垯鐢?浠ｆ浛  
  • 38銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select decode(1,1,'鍐呭鏄?',2,'鍐呭鏄?',3,'鍐呭鏄?') from dual; 綾諱技浜?nbsp;switch...case...  
  •   
  • 浜嬪姟澶勭悊  
  • 39銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">commit;  鎻愪氦浜嬪姟  
  • 40銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">rollback; 鍥炴粴浜嬪姟  
  •   
  •   
  • 41銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">select rownum from table; 鍦ㄦ病涓鍒楀墠闈㈡樉紺鴻鍙?nbsp; 
  • 42銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">drop table 琛ㄥ悕 cascade constraint   
  •     on delete casecade 褰撶埗琛ㄤ腑鐨勫唴瀹硅鍒犻櫎鍚庯紝瀛愯〃涓殑鍐呭涔熻鍒犻櫎  
  •   
  • 43銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">desc琛ㄥ悕 鏄劇ず琛ㄧ殑緇撴瀯  
  • 44銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">create user [username] identified by [password] 鍒涘緩鏂扮殑鐢ㄦ埛  
  • 45銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">grant 鏉冮檺1銆佹潈闄?...to 鐢ㄦ埛  緇欏垱寤虹敤鎴鋒潈闄?nbsp; 
  •  ex:grant create session to [username] 姝ゆ椂鍙兘榪炴帴鍒版暟鎹簱  
  •     grant connect,resource to [username] 姝ゆ椂鏉冮檺鑳芥弧瓚寵姹?nbsp; 
  • 46銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">alter user [username] identified by [password] 淇敼鐢ㄦ埛瀵嗙爜  
  • 47銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">alter user [username] password expired 涓嬫鐧誨綍鏃舵彁紺轟慨鏀瑰瘑鐮?nbsp; 
  • 48銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">alter user [username] account lock  閿佷綇鐢ㄦ埛  
  • 49銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">alter user [username] account unlock  瑙ｉ攣閿佺敤鎴?nbsp; 
  • 50銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">grant select,delete on scott.emp to [username] 鎶妔cott涓媏mp琛ㄧ殑涓や釜鏉冮檺緇欑敤鎴?nbsp; 
  • 51銆?span class="keyword" style="color: #7f0055; font-weight: bold; ">revoke select ,delete on scott.emo from [username] 鍥炴敹鏉冮檺 


    • HsiangYu 2011-04-29 10:02 鍙戣〃璇勮
    ]]>    Oracle瀛︿範(fàn)絎旇http://www.aygfsteel.com/HsiangYu/archive/2011/03/05/345780.htmlHsiangYuHsiangYuSat, 05 Mar 2011 07:15:00 GMThttp://www.aygfsteel.com/HsiangYu/archive/2011/03/05/345780.htmlhttp://www.aygfsteel.com/HsiangYu/comments/345780.htmlhttp://www.aygfsteel.com/HsiangYu/archive/2011/03/05/345780.html#Feedback0http://www.aygfsteel.com/HsiangYu/comments/commentRss/345780.htmlhttp://www.aygfsteel.com/HsiangYu/services/trackbacks/345780.html闃呰鍏ㄦ枃

    HsiangYu 2011-03-05 15:15 鍙戣〃璇勮
    ]]>     主站蜘蛛池模板： 图木舒克市| 万安县| 汉中市| 巴东县| 错那县| 昌宁县| 科尔| 亳州市| 阆中市| 二连浩特市| 天峨县| 金阳县| 石泉县| 西安市| 旬阳县| 定安县| 乐陵市| 南通市| 五峰| 平武县| 林甸县| 武强县| 康定县| 营口市| 湛江市| 资讯 | 剑川县| 林口县| 犍为县| 大石桥市| 呼和浩特市| 浪卡子县| 梅河口市| 栾川县| 新营市| 壶关县| 神农架林区| 同德县| 柳林县| 五家渠市| 准格尔旗|