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Derby数据库的安装配置及使用

Jun 07, 2016 pm 04:50 PM

Derby数据库是一个纯用Java实现的内存数据库,属于Apache的一个开源项目。由于是用Java实现的,所以可以在任何平台上运行;另外一

Derby数据库是一个纯用Java实现的内存数据库,属于Apache的一个开源项目。由于是用Java实现的,所以可以在任何平台上运行;另外一个特点是体积小,免安装,只需要几个小jar包就可以运行了。下面说下其安装及配置
 
安装

1).从apache下载Derby数据库(如db-derby-10.10.1.1-bin.zip)并解压到任意目录(如:D:\Derby\db-derby-10.10.1.1-bin)。 
2).配置环境变量DERBY_HOME=D:\Derby\db-derby-10.10.1.1-bin 
  并添加到path和classpath环境变量(%DERBY_HOME%\bin;%DERBY_HOME%\lib\derbyrun.jar) 
3).测试数据库安装 C:\>sysinfo 
 ------------------ Java Information ------------------ 
 Java Version:    1.7.0_40 
 Java Vendor:    Oracle Corporation 
 Java home:      C:\Program Files\Java\jdk1.7.0_40\jre 
 Java classpath:  D:\Derby\db-derby-10.10.1.1-bin\bin;D:\Derby\db-derby-10.10.1.1-bin\lib\derbyrun.jar; 
 OS name:        Windows 7 
 OS architecture: amd64 
 OS version:      6.1 
 Java user name:  qqqqq 
 Java user home:  D:\userdata\qqq 
 Java user dir:  C:\ 
 java.specification.name: Java Platform API Specification 
 java.specification.version: 1.7 
 java.runtime.version: 1.7.0_40-b43 
 --------- Derby Information -------- 
 [D:\Derby\db-derby-10.10.1.1-bin\lib\derby.jar] 10.10.1.1 - (1458268) 
 [D:\Derby\db-derby-10.10.1.1-bin\lib\derbytools.jar] 10.10.1.1 - (1458268) 
 [D:\Derby\db-derby-10.10.1.1-bin\lib\derbynet.jar] 10.10.1.1 - (1458268) 
 [D:\Derby\db-derby-10.10.1.1-bin\lib\derbyclient.jar] 10.10.1.1 - (1458268) 

连接

 C:\>ij 
 ij 版本 10.10 
 ij> CONNECT 'jdbc:derby:D:\Project\derbyDB\testdb;create=true';(如果数据库testdb不存在,则创建改数据库) 
 ij> CONNECT 'jdbc:derby:D:\Project\derbyDB\testdb;';          (连接testdb数据库) 
 ij(CONNECTION1)> CREATE TABLE FIRSTTABLE(ID INT PRIMARY KEY,NAME VARCHAR(12));(创建表) 
 已插入/更新/删除 0 行 
 ij(CONNECTION1)> INSERT INTO FIRSTTABLE VALUES(10,'TEN'),(20,'TWENTY'),(30,'THIRTY');(插入数据) 
 已插入/更新/删除 3 行 
 ij(CONNECTION1)> SELECT * FROM FIRSTTABLE; 
 ID |NAME 
 ------------------------ 
 10 |TEN 
 20 |TWENTY 
 30 |THIRTY 
 已选择 3 行 
 ij(CONNECTION1)>exit;(退出)

说明

1. sysinfo工具用于显示Java环境信息和Derby的版本信息。

2. ij工具来进行数据库交互,执行SQL脚本,如查询、增删改、创建表等

例子

下面是个完整的例子,,如何程序中操作JavaDB

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Properties;

public class TestDerby {
 public static void main(String[] args) {
  try {
   Class.forName("org.apache.derby.jdbc.EmbeddedDriver").newInstance();
   System.out.println("Load the embedded driver");
   Connection conn = null;             
   Properties props = new Properties();
   props.put("user", "user1"); props.put("password", "user1");
   conn=DriverManager.getConnection("jdbc:derby:C:\\Project\\derbyDB\\testdb;");
   System.out.println("create and connect to testdb");
   
   Statement s = conn.createStatement();
   ResultSet rs = s.executeQuery("SELECT * FROM FIRSTTABLE");
   System.out.println("name\t\tscore");
   while(rs.next()) {
     StringBuilder builder = new StringBuilder(rs.getString(1));
     builder.append("\t");
     builder.append(rs.getInt(1));
     System.out.println(builder.toString());
   }
   
  } catch (InstantiationException e) {
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   e.printStackTrace();
  } catch (ClassNotFoundException e) {
   e.printStackTrace();
  }catch (Exception e) {
   e.printStackTrace();
  }
 
 }

}

Hadoop集群、hive、Derby安装部署详细说明

体验纯Java数据库——Derby

[推荐]专家讲价优化Derby数据库技巧

配置Hive使用嵌入式Derby或客服模式Derby方法

使用Derby数据库首次连接时的ERROR 42Y07问题

Derby 的详细介绍:请点这里
Derby 的下载地址:请点这里

本文永久更新链接地址:

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