不同关系数据库 关系数据库的数据迁移

Posted 2020-10-15

方案1：导出数据库文件-导入
方案2：navicat prrmium 数据传输
相同数据库软件之间效果好，不同数据库软件之间有一些问题
方案3：写程序，连接旧数据库，取出数据，连接新数据库，存入数据

Class.forName("oracle.jdbc.driver.OracleDriver");            
String url  = "jdbc:oracle:thin:@"+serverName+":1521:eclipsedb";
Connection connOracle  = DriverManager.getConnection(url,"eclipse","888888");  //连接源数据源
Statement stmt = connOracle.createStatement();
ResultSet rs   = stmt.executeQuery("select * from employee");
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");    
Connection connAccess = DriverManager.getConnection("jdbc:odbc:target","","");  //连接目标数据源
PreparedStatement pstmt = connAccess.prepareStatement("insert into employee(id,name,department,salary) values(?,?,?,?)");
//循环装入数据
while(rs.next()) {               
    pstmt.setInt(1,rs.getInt("id"));
    pstmt.setString(2,rs.getString("name"));
    pstmt.setString(3,rs.getString("department"));    
    pstmt.setDouble(4,rs.getDouble("salary"));    
    pstmt.executeUpdate();
}
//释放资源
rs.close();
stmt.close();
pstmt.close();
connOracle.close();
connAccess.close();

来自 http://zhengshuo3527.blog.163.com/blog/static/615348220073381530569/