[转]jdbc批量insert———oracle数组类型与forall的应用

　　原文：http://blog.itpub.net/post/37572/465011
　　

测试java的insert 同使用9i以后的bulk Insert 的速度.
测试结果显示通过bulk Insert 速度相当的快.
100000条记录
insert ,---------------93秒
bulk insert -------------0.441秒

环境:
oracle 10.2.0.3 Windows 2000Server 
java

代码:
 

SQL> desc a
Name Type Nullable Default Comments
---- ------------ -------- ------- --------
ID INTEGER Y
NAME VARCHAR2(20) Y
bulk Insert 使用的类型及过程
create or replace type i_table is table of number(10);
create or replace type v_table is table of varchar2(10);
create or replace procedure pro_forall_insert(v_1 i_table,v_2 v_table)
as
c integer;
begin
forall i in 1.. v_1.count
insert into a values(v_1(i),v_2(i));
end;
 　　
测试的java代码:



import java.io.*;
import java.sql.*;
import java.util.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.*;
import oracle.jdbc.OracleTypes;
import oracle.sql.*;
import oracle.sql.ARRAY;
import oracle.sql.ArrayDescriptor;
import oracle.sql.STRUCT;
import oracle.sql.StructDescriptor;
import java.sql.Connection;
import java.sql.DriverManager;
import oracle.jdbc.OracleCallableStatement;
public class testOracle
{
public testOracle()
{
Connection oraCon = null;
PreparedStatement ps = null;
Statement st = null;
ResultSet rs = null;
try
{
try
{
Class.forName("oracle.jdbc.driver.OracleDriver");
}
catch (ClassNotFoundException ex)
{
}
oraCon = DriverManager.getConnection("jdbc:oracle:thin:@192.168.15.234:1521:ora10g",
"imcs",
"imcs");
oraCon.setAutoCommit(false);
}
catch (SQLException ex)
{
ex.printStackTrace();
}
CallableStatement cstmt = null;
oracle.sql.ArrayDescriptor a = null;
oracle.sql.ArrayDescriptor b = null;
if (1 == 1)
{
Object[] s1 = new Object[100000];
Object[] s2 = new Object[100000];
for (int i = 0; i < 100000; i++)
{
s1 = new Integer(1);
s2 = new String("aaa").concat(String.valueOf(i));
}
try
{
a = oracle.sql.ArrayDescriptor.createDescriptor("I_TABLE",
oraCon);
b = oracle.sql.ArrayDescriptor.createDescriptor("V_TABLE",
oraCon);
ARRAY a_test = new ARRAY(a, oraCon, s1);
ARRAY b_test = new ARRAY(b, oraCon, s2);
cstmt = oraCon.prepareCall("{ call pro_forall_insert(?,?) }");
cstmt.setObject(1, a_test);
cstmt.setObject(2, b_test);
long aaaa = System.currentTimeMillis();
System.out.println(System.currentTimeMillis());
cstmt.execute();
oraCon.commit();
System.out.println(System.currentTimeMillis() - aaaa);
}
catch (Exception e)
{
e.printStackTrace();
}
}
else
{
try
{
PreparedStatement oraPs = null;
String oraInsertSql = "insert into a values(?,?)";
oraPs = oraCon.prepareStatement(oraInsertSql);
long aaaa = System.currentTimeMillis();
System.out.println(System.currentTimeMillis());
for (int i = 0; i < 100000; i++)
{
oraPs.setInt(1, i);
oraPs.setString(2,
new String("aaa").concat(String.valueOf(i)));
oraPs.executeUpdate();
}
oraCon.commit();
System.out.println(System.currentTimeMillis() - aaaa);
}
catch (SQLException ex)
{
System.out.print("dddddd");
System.out.print(ex.getMessage());
}
}
try
{
jbInit();
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
public static void main(String args[])
{
testOracle a = new testOracle();
}
private void jbInit() throws Exception
{
}
};