Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

oracle ´æ´¢¹ý³ÌµÄ»ù±¾Óï·¨

1.»ù±¾½á¹¹
CREATE OR REPLACE PROCEDURE ´æ´¢¹ý³ÌÃû×Ö
(
    ²ÎÊý1 IN NUMBER,
    ²ÎÊý2 IN NUMBER
) IS
±äÁ¿1 INTEGER :=0;
±äÁ¿2 DATE;
BEGIN
END ´æ´¢¹ý³ÌÃû×Ö
2.SELECT INTO STATEMENT
  ½«select²éѯµÄ½á¹û´æÈëµ½±äÁ¿ÖУ¬¿ÉÒÔͬʱ½«¶à¸öÁд洢¶à¸ö±äÁ¿ÖУ¬±ØÐëÓÐÒ»Ìõ
  ¼Ç¼£¬·ñÔòÅ׳öÒì³£(Èç¹ûûÓмǼÅ׳öNO_DATA_FOUND)
  Àý×Ó£º
  BEGIN
  SELECT col1,col2 into ±äÁ¿1,±äÁ¿2 from typestruct where xxx;
  EXCEPTION
  WHEN NO_DATA_FOUND THEN
      xxxx;
  END;
  ...
3.IF ÅжÏ
  IF V_TEST=1 THEN
    BEGIN
       do something
    END;
  END IF;
4.while Ñ­»·
  WHILE V_TEST=1 LOOP
  BEGIN
 XXXX
  END;
  END LOOP;
5.±äÁ¿¸³Öµ
  V_TEST := 123;
6.ÓÃfor in ʹÓÃcursor
  ...
  IS
  CURSOR cur IS SELECT * from xxx;
  BEGIN
 FOR cur_result in cur LOOP
  BEGIN
   V_SUM :=cur_result.ÁÐÃû1+cur_result.ÁÐÃû2
  END;
 END LOOP;
  END;
7.´ø²ÎÊýµÄcursor
  CURSOR C_USER(C_ID NUMBER) IS SELECT NAME from USER WHERE TYPEID=C_ID;
  OPEN C_USER(±äÁ¿Öµ);
  LOOP
 FETCH C_USER INTO V_NAME;
 EXIT FETCH C_USER%NOTFOUND;
    do something
  END LOOP;
  CLOSE C_USER;
8.ÓÃpl/sql developer debug
  Á¬½ÓÊý¾Ý¿âºó½¨Á¢Ò»¸öTest WINDOW
  ÔÚ´°¿ÚÊäÈëµ÷ÓÃSPµÄ´úÂë,F9¿ªÊ¼debug,CTRL+Nµ¥²½µ÷ÊÔ
¹ØÓÚoracle´æ´¢¹ý³ÌµÄÈô¸ÉÎÊÌⱸÍü
1.ÔÚoracleÖУ¬Êý¾Ý±í±ðÃû²»ÄܼÓas£¬È磺
select a.appname from appinfo a;-- ÕýÈ·
select a.appname from appinfo as a;-- ´íÎó
 Ò²Ðí£¬ÊÇźÍoracleÖеĴ洢¹ý³ÌÖеĹؼü×Öas³åÍ»µÄÎÊÌâ°É
2.ÔÚ´æ´¢¹ý³ÌÖУ¬selectijһ×Ö¶Îʱ£¬ºóÃæ±ØÐë½ô¸úinto£¬Èç¹ûselectÕû¸ö¼Ç¼£¬ÀûÓÃÓαêµÄ»°¾ÍÁíµ±±ðÂÛÁË¡£
  select af.keynode into kn from APPFOUNDATION af where&nb


Ïà¹ØÎĵµ£º

Oracle ×Ö·û´®³¤¶Èº¯Êý


LENGTH calculates length using characters as defined by the input character set. 
LENGTHB uses bytes instead of characters. 
VSIZE returns the number of bytes in the internal representation of expr.
LENGTHC uses Unicode complete characters. 
LENGTH2 uses UCS2 codepoints. 
......

OracleÊý¾Ý¿âÖеÄË÷ÒýÏê½â

Ò»¡¢ ROWIDµÄ¸ÅÄî
¡¡¡¡´æ´¢
ÁËrowÔÚÊý¾ÝÎļþÖеľßÌåλÖãº64λ±àÂëµÄÊý¾Ý£¬A-Z, a-z, 0-9, +, ºÍ /£¬
¡¡¡¡rowÔÚÊý¾Ý¿éÖеĴ洢
·½Ê½
¡¡¡¡SELECT ROWID, last_name from hr.employees WHERE department_id = 20;
¡¡¡¡±ÈÈ磺OOOOOOFFFBBBBBBRRR
¡¡¡¡OOOOOO£ºdata object number, ¶ÔÓ¦dba_objects.data_object_id
¡¡¡ ......

OracleÇ¿ÐжϿªÓû§Á¬½Ó


Ê×ÏȲéÕÒÄ¿±êÓû§µÄµ±Ç°½ø³Ì£º  
select sid,serial# from v$session where username='ERP';   
²éѯ½á¹û£º
sid serial#
222 123
122 233
Ç¿ÐжϿªÓû§Á¬½Ó£º  
alter system kill session 'sid,serial';   
ÀýÈ磺    
alter system kill session '222,123'; 
......

´«ÖDz¥¿Í——Êý¾Ý¿âÖ®ORACLE£¨Ò»£©


Ò» Oracle¹«Ë¾¼ò½é 
OracleÊÇÒóÐæ³öÍÁµÄ¼×¹ÇÎÄ(oracle bone inscriptions)µÄÓ¢ÎÄ·­ÒëµÄµÚÒ»¸öµ¥´Ê
Oracle¹«Ë¾ÊÇÈ«Çò×î´óµÄÐÅÏ¢¹ÜÀíÈí¼þ¼°·þÎñ¹©Ó¦ÉÌ£¬³ÉÁ¢ÓÚ1977Ä꣬×ܲ¿Î»ÓÚÃÀ¹ú¼ÓÖÝ Redwood shore
Oracle¹«Ë¾ÒòÆ临ÔӵĹØϵÊý¾Ý¿â²úÆ·¶øÎÅÃû¡£OracleµÄ¹ØϵÊý¾Ý¿âÊÇÊÀ½çµÚÒ»¸öÖ§³ÖSQLÓïÑÔµÄÊý¾Ý¿â
OracleÔÚ³¬¹ý ......

¶ÔoracleÊý¾Ý¿âÖÐCLOB×ֶεÄÏà¹Ø²Ù×÷


import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
 * ´Ë´¦²åÈëÀàÐÍ˵Ã÷¡£
 * ´´½¨ÈÕÆÚ£º(2001/11/30 14:55 ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ