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1. ʹÓÃoracleµÄsqlÓï¾äÀ´´´½¨£º
e.g. ʹÓÃcreate or replace and compile java source named "<name>" as
ºó±ß¸úÉÏjavaÔ´³ÌÐò¡£ÒªÇóÀàµÄ·½·¨±ØÐëÊÇpublic staticµÄ£¬²ÅÄÜÓÃÓÚ´æ´¢¹ý³Ì¡£
SQL> create or replace and compile java source named "javademo1"
2 as
3 import java.sql.*;
4 public class JavaDemo1
5 {
6 public static void main(String[] argv)
7 {
8 System.out.println("hello, java demo1");
9 }
10 }
11 /
Java ÒÑ´´½¨¡£
SQL> show errors java source "javademo1"
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SQL> create or replace procedure javademo1
2 as
3 language java name 'JavaDemo1.main(java.lang.String[])';
4 /
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SQL> set serveroutput on
SQL> call javademo1();
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SQL> call dbms_java.set_output(5000);
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SQL> call javademo1();
hello, java demo1
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SQL> call javademo1();
hello, java demo1
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2. ʹÓÃÍⲿclassÎļþÀ´×°ÔØ´´½¨
e.g. ÕâÀï¼ÈÈ»Óõ½ÁËÍⲿÎļþ£¬±ØÈ»Òª½«classÎļþ·Åµ½oracle ServerµÄijһĿ¼Ï±ߡ£
public class OracleJavaProc
{
public static void main(String[] argv)
{
System.out.println("It's a Java Oracle procedure.");
}
}
SQL> grant create any directory to scott;
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SQL> conn scott/tiger@iihero.oracledb
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SQL> create or replace directory test_dir as 'd:\oracle';
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SQL> create or replace java class using bfile(test_dir, 'OracleJavaProc.CLASS')
2 /
Java ÒÑ´´½¨¡£
SQL> crea
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µ±Ò»¸ö¸´ÔӵĶÔÏó±»¹¹Ôìʱ,ËüµÄ¹¹Ô캯Êý°´ÏÂÃæµÄ˳Ðò±»µ÷ÓÃ(that the order of constructor calls for a complex object is as follows)
1.Æä»ùÀà(base-class)µÄ¹¹Ô캯Êý±»µ÷ÓÃ,Õâ¸ö²½ÖèÒԵݹéµÄ·½Ê½Öظ´,ËùÒÔ×îµ×²ã(the root of hierarchy)µÄ¹¹Ô캯ÊýÊ×Ïȱ»Ö´ÐÐ,È»ºóÊÇËüÉÏÒ»²ãÅÉÉúÀà(the next-deriv ......
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class Fen{
String fileName;
int size;
Fen(String fileName,String size){
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