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select a.constraint_name, a.table_name, b.constraint_name
  from user_constraints a, user_constraints b
where a.constraint_type = 'R'
  and b.constraint_type = 'P'
  and a.r_constraint_name = b.constraint_name
P ´ú±íÖ÷¼ü
R ´ú±íÍâ¼ü


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JDBCÁ¬½ÓOracleµÄ¼òµ¥Àý×Ó

 1import java.sql.*;
 2import java.util.logging.Level;
 3import java.util.logging.Logger;
 4
 5/** *//**
 6 * Title: JDBCÁ¬½ÓÊý¾Ý¿â
 7 * Description: ±¾ÊµÀýÑÝʾÈçºÎʹÓÃJDBCÁ¬½ÓOracleÊý¾Ý¿â£¬²¢ÑÝʾÌí¼ÓÊý¾ÝºÍ²éѯÊý¾Ý.
 8 */
 9public class JDBCExampl ......

OC4JµÄ»·¾³±äÁ¿ÓëoracleÊý¾Ý¿â³åÍ»µÄ½â¾ö·½°¸

µ±±¾»ú°²×°ÁËORACLEÊý¾Ý¿âºó£¬ÔÙ°²×°ÔËÐÐOC4JµÄ»°£¬»·¾³±äÁ¿“ORACLE_HOME”ÓëORACLEÊý¾Ý¿âÓгåÍ»£¬¿ÉÒÔ°´ÕÕÈçÏ·½·¨½â¾ö´ËÎÊÌ⣺
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µÚÒ»²½£ºÔÚ»·¾³±äÁ¿ÖÐн¨“OC4J_HOME”£¬Ö¸¶¨µ½ÄãµÄOC4J°²×°¸ùĿ¼£»
µÚ¶þ²½£º´ò¿ªOC4J°²×°µÄĿ¼£¬¼´../OC4J/bin/£¬ÀïÃæÓÐÒ»¸öoc4j.cmd£¬ÓÒ¼üµ¥»÷¸ÃÎļþ£¬Ñ ......

oracle·Ö×é rollup,Cube

CUBE ºÍ ROLLUP Ö®¼äµÄÇø±ðÔÚÓÚ£º
CUBE Éú³ÉµÄ½á¹û¼¯ÏÔʾÁËËùÑ¡ÁÐÖÐÖµµÄËùÓÐ×éºÏµÄ¾ÛºÏ¡£
ROLLUP Éú³ÉµÄ½á¹û¼¯ÏÔʾÁËËùÑ¡ÁÐÖÐÖµµÄijһ²ã´Î½á¹¹µÄ¾ÛºÏ¡£
     OracleµÄGROUP BYÓï¾ä³ýÁË×î»ù±¾µÄÓï·¨Í⣬»¹Ö§³ÖROLLUPºÍCUBEÓï¾ä¡£Èç¹ûÊÇROLLUP(A, B, C)µÄ»°£¬Ê×ÏÈ·Ö³ÉÁ½´ó²½£º£¨1£©¶ÔÓÚ·ûºÏÌõ¼þµÄÿ ......

oracle splitº¯Êý

CREATE OR REPLACE TYPE ty_str_array IS TABLE OF VARCHAR2 (4000);
CREATE OR REPLACE FUNCTION fn_split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2)
    RETURN ty_str_split
IS
    j INT := 0;
    i INT := 1;
    len INT := 0;
 &nbs ......
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