Java 使用JDBC将表从SQL Server复制到Oracle

我正在尝试将三个单独的表从SQL Server 2012加载到Oracle中。我已在单独的类中建立了与SQL Server和Oracle的连接，如下所示：

SQL Server连接：

Oracle连接：

我已将所有登录详细信息存储在属性文件中

我的第一个问题是如何结合这两个类来合并这两个连接？我的第二个问题是如何使用select语句从SQL Server获取所有数据，然后使用insert语句插入Oracle数据库

SQL Server和Oracle中的表（从SQL Server到Oracle） 1。对于材料批次：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

在SQL Server中：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

在SQL开发人员中：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

2。对于主控材料：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

在SQL Server中：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

在SQL开发人员中：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

3。对于供应商：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

在SQL Server中：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

在SQL开发人员中：

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|EXPIRATION DATE|
MODIFIED_DATETIME 

MATERIAL NUMBER|BATCH NUMBER|VENDOR BATCH NUMBER|VENDOR NUMBER|GOODS_SUPPLIER_NUMBER|
EXPIRATION DATE|INSTIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|MODIFIED_DATETIME 

PLANT|MATERIAL_NUMBER|MATERIAL_DESC|PROFIT_CENTER_NAME|STATUS|INSTIME  

VENDOR_NUMBER|VENDOR_NAME|MODIFIED_DATETIME 

VENDOR_NUMBER|VENDOR_NAME|VENDOR_LOCATION|INSTIME

---

有些字段不在SQL Server中，而在SQL Developer（Oracle）中。对于那些我将保持

NULL

的人，这里有一些关于如何继续的草拟代码-它不会编译，因为缺少一些方法-但是您应该能够从这里填补空白

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class DBCopy {

    public static void main(String[] args) {

        try {
            //You know how to do this - just rename and copy in...
            Connection sourceCon = getOracleConnection(); 
            Connection targetCon = geSqlServerConnection();

            copyMaterialBatch(sourceCon, targetCon);
            copyMaterialMaster(sourceCon, targetCon);
            copyVendor(sourceCon, targetCon);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

    private static void copyMaterialBatch(Connection sourceCon, Connection targetCon) throws SQLException {
        //Try-with-Resource to close all cursors once we're done
        try(//SELECT from source
                PreparedStatement ps = sourceCon.prepareStatement(
                    "SELECT \"MATERIAL NUMBER\", "
                    + "\"BATCH NUMBER\", "
                    + "\"VENDOR BATCH NUMBER\", "
                    + "\"VENDOR NUMBER\", "
                    + "\"EXPIRATION DATE\", "
                    + "\"MODIFIED_DATETIME\" FROM MATERIAL_BATCH");
            //INSERT into target
                PreparedStatement ins = targetCon.prepareStatement(
                        "INSERT INTO MATERIAL_BATCH([MATERIAL NUMBER], "
                    + "[BATCH NUMBER], "
                    + "[VENDOR BATCH NUMBER], "
                    + "[VENDOR NUMBER], "
                    + "[GOODS_SUPPLIER_NUMBER], "
                    + "[EXPIRATION DATE]"
                    + "[INSTIME]) VALUES (?,?,?,?,NULL,?,?)");
            //Perform select / open Cursor
                ResultSet rs = ps.executeQuery()) {
            int batchnr = 0;
            int MAXBATCH = 100;
            while(rs.next()) {
                //Set into INSERT the values we SELECTEd
                ins.setInt(1, rs.getInt("MATERIAL NUMBER")); 
                ins.setInt(2, rs.getInt("BATCH NUMBER")); 
                ins.setInt(3, rs.getInt("VENDOR BATCH NUMBER")); 
                ins.setInt(4, rs.getInt("VENDOR NUMBER"));              
                ins.setTimestamp(5, rs.getTimestamp("EXPIRATION DATE")); 
                ins.setTimestamp(6, rs.getTimestamp("MODIFIED_DATETIME"));
                //Add to Batch (you could executeUpdate here but if you have los of rows...)
                ins.addBatch();
                if(++batchnr % MAXBATCH == 0) {
                    ins.executeBatch();
                }
            }
            //if number of rows was not aligned on MAXBATCH size...
            ins.executeBatch();                     
        }                   
    }
}

请注意，Oracle和SQL Server对包含空格的列名使用不同的转义。Oracle需要

“COLUMN NAME”

，而SQL Server需要

[COLUMN NAME]

祝你好运

编辑

适合您的实际参数类型：

//Set into INSERT the values we SELECTEd
            ins.setString(1, rs.getString("MATERIAL_NUMBER")); 
            ins.setString(2, rs.getString("BATCH_NUMBER")); 
            ins.setString(3, rs.getString("VENDOR_BATCH_NUMBER")); 
            ins.setString(4, rs.getString("VENDOR_NUMBER"));      
            ins.setString(5, rs.getString("GOODS_SUPPLIER_NUMBER"));
            //6th value is always null as specified in INSERT
            ins.setTimestamp(6, rs.getTimestamp("MODIFIED_DATETIME"));

---

因此，现在我得到了一个错误：列名称GOODS\u SUPPLIER\u NUMBER无效。因此，这是其中一列，它将被列为null，因为该列在源连接中不存在。以下是其取货地点的代码供应商编号。我知道我非常接近。关于这个有什么想法吗？ 谢谢你，桑尼

  private static void copyMaterialBatch(Connection sourceCon, Connection targetCon) throws SQLException {
        //Try-with-Resource to close all cursors once we're done
        try(//SELECT from source
                PreparedStatement ps = sourceCon.prepareStatement(
                    "SELECT [MATERIAL_NUMBER], "
                    + " [BATCH_NUMBER], "
                    + " [VENDOR_BATCH_NUMBER], "
                    + " [VENDOR_NUMBER], "
                    + " [EXPIRATION_DATE], "
                    + " [MODIFIED_DATETIME]  FROM dbo.MATERIAL_BATCH_VIEW");
            //INSERT into target
                PreparedStatement ins = targetCon.prepareStatement(
                        "INSERT INTO MATERIAL_BATCH(MATERIAL_NUMBER, "
                    + "BATCH_NUMBER, "
                    + "VENDOR_BATCH_NUMBER, "
                    + "VENDOR_NUMBER, "
                    **+ "GOODS_SUPPLIER_NUMBER, "**
                    + "EXPIRATION_DATE"
                    + "INSTIME) VALUES (?,?,?,?,NULL,?,?)");
            //Perform select / open Cursor
                ResultSet rs = ps.executeQuery()) {
            int batchnr = 0;
            int MAXBATCH = 1000;
            while(rs.next()) {
                //Set into INSERT the values we SELECTEd
                ins.setString(1, rs.getString("MATERIAL_NUMBER")); 
                ins.setString(2, rs.getString("BATCH_NUMBER")); 
                ins.setString(3, rs.getString("VENDOR_BATCH_NUMBER")); 
                ins.setString(4, rs.getString("VENDOR_NUMBER"));      
                ins.setString(5, rs.getString("GOODS_SUPPLIER_NUMBER"));
                ins.setString(6, rs.getString("EXPIRATION_DATE")); 
                ins.setTimestamp(7, rs.getTimestamp("MODIFIED_DATETIME"));
                //Add to Batch (you could executeUpdate here but if you have los of rows...)
                ins.addBatch();
                if(++batchnr % MAXBATCH == 0) {
                    ins.executeBatch();
                }
            }

因此，当我删除了货物\供应商\编号后，我的insert语句现在看起来是完整的：

try(//SELECT from source
                    PreparedStatement ps = sourceCon.prepareStatement(
                        "SELECT [PLANT], "
                        + "[MATERIAL_NUMBER], "
                        + "[MATERIAL_DESC], "
                        + "[MODIFIED_DATETIME] FROM dbo.MATERIAL_MASTER_VIEW");
                //INSERT into target
                    PreparedStatement ins = targetCon.prepareStatement(
"INSERT INTO MATERIAL_BATCH(MATERIAL_NUMBER, "
                + "BATCH_NUMBER, "
                + "VENDOR_BATCH_NUMBER, "
                + "VENDOR_NUMBER, "
                + "EXPIRATION_DATE"
                    + "INSTIME) VALUES (?,?,?,?,?,?)");
            //Perform select / open Cursor
                ResultSet rs = ps.executeQuery()) {
            int batchnr = 0;
            int MAXBATCH = 1000;
            while(rs.next()) {
                //Set into INSERT the values we SELECTEd
                ins.setString(1, rs.getString("MATERIAL_NUMBER")); 
                ins.setString(2, rs.getString("BATCH_NUMBER")); 
                ins.setString(3, rs.getString("VENDOR_BATCH_NUMBER")); 
                ins.setString(4, rs.getString("VENDOR_NUMBER"));      
                ins.setString(5, rs.getString("EXPIRATION_DATE")); 
                ins.setTimestamp(6, rs.getTimestamp("MODIFIED_DATETIME"));

现在insert语句中有6个值与ins.setString部分中的6个值匹配

我得到的错误是：java.sql.BatchUpdateException:ORA-00913:值太多

我认为最后一列中的INSTIME与MODIFIED_DATETIME不匹配

再一次，我会确保给你这个答案的信用。我只是不想重复代码，所以我把它放在回答我自己问题的地方。再次感谢

非常感谢你。成功了。还有一件事。因此，我有材料批次、材料主数据和供应商。由于某种原因，我得到了一个供应商的错误。错误是：列名“VENDOR\u name”无效 以下是供应商代码：

      private static void copyVendor(Connection sourceCon, Connection targetCon) throws SQLException {
            //Try-with-Resource to close all cursors once we're done
            try(//SELECT from source
                    PreparedStatement ps = sourceCon.prepareStatement(
                        "SELECT [VENDOR_NUMBER], "
                        + "[VENDOR_NAME], "
                        + "[MODIFIED_DATETIME] FROM dbo.VENDOR_VIEW");
                //INSERT into target
                    PreparedStatement ins = targetCon.prepareStatement(
                            "INSERT INTO VENDOR(VENDOR_NUMBER, "
                        + "VENDOR_NAME, "
                        + "INSTIME) VALUES (?,?,?)");
                //Perform select / open Cursor
                    ResultSet rs = ps.executeQuery()) {
                int vendornr = 0;
                int MAXVENDOR = 1000;
                while(rs.next()) {
                    //Set into INSERT the values we SELECTEd
                    ins.setString(1, rs.getString("VENDOR_NUMBER")); 
                    ins.setString(2, rs.getString("VENDOR_NAME")); 
                    ins.setTimestamp(3, rs.getTimestamp("MODIFIED_DATETIME"));
                    //Add to Batch (you could executeUpdate here but if you have los of rows...)
                    ins.addBatch();
                    if(++vendornr % MAXVENDOR == 0) {
                        ins.executeBatch();
                    }
                }
                //if number of rows was not aligned on MAXBATCH size...
                ins.executeBatch();                     
            }                   


    }

---

看不清我在这里缺少什么。我有三列，供应商编号、供应商名称和修改日期时间。我知道拼写是正确的。这更像是“第二双眼睛”的情况。lol.再次感谢

因为当Oracle server在sql server中使用MSSQL server驱动程序？数据导出工具时？@nikpon我实际上是在使用JDBC连接来连接Oracle。我只是使用sql server查看oracle数据库。对不起，这是我的错confusion@SeanLange . 我被告知不要使用SSI。相反，我被告知要使用SQLServerJAR文件，我不能把我的大脑完全放在被迫使用代码进行数据导入的想法上，除非这是一件正在进行的事情。即使如此，这似乎也不像一些查询那样复杂。如果在insert语句中不包含列，则该值将变为null，因此只需在insert语句中排除这些列即可。谢谢。我现在正在调查此事。谢谢你的帮助，简。我现在只有一个问题。我得到了这个错误：将nvarchar值转换为JDBC数据类型INTEGER时出错。我相信sql server变量列为nvarchar，而oracle数据库列为varchar。我正试图找出如何将其转换为干净的。有什么想法吗？所以现在我得到了这个错误：列名称货物\供应商\编号无效。因此，这是其中一列，它将被列为null，因为该列在源连接中不存在。以下是其取货地点的代码供应商编号。我知道我非常接近。我已经列出了上面的代码片段。关于这个有什么想法吗？谢谢，孩子，如果你不打算自己回答问题，你应该更新你的问题……在这一点上，我会因为花时间而有点恼火；-）有关建议的更改，请参见“我的答案中的编辑”。@Jan我将确保对您的评论表示赞同。很抱歉。所以现在我得到了太多值的错误。我相信这和时间戳有关。下面是我根据您修改代码的方式：while（rs.next（））{ins.setString（1，rs.getString（“物料号”）；ins.setString（2，rs.getString（“批次号”）；ins.setString（3，rs.getString（“供应商批次号”）；ins.setString（4，rs.getString（“供应商号”）；ins.setString（5，rs.getString（“到期日”）；ins.setTimestamp（6，rs.getTimestamp（“MODIFIED_DATETIME”）；请编辑您的帖子，并包含insert语句。如果语句中的？数量与您设置的参数数量不匹配（本例中为6），则会出现此错误。或者，如果在insert INTO（a、b、c）值（a1、b1、c1、d2）中，则insert+“到期日”的值会多于列+“INSTIME将导致EXPIRATION\u DATEINSTIME-这将被解释为一列。“EXPIRATION\u DATE”+“INSTIME”应修复this@Jan.非常感谢。我犯了一个愚蠢的错误。还有一件事。我在上面列出的答案中又加了一个错误。