通过连接到 MS Access 的 Java Eclipse 无法使用删除查询删除记录
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【中文标题】通过连接到 MS Access 的 Java Eclipse 无法使用删除查询删除记录【英文标题】：Cannot Delete a record with an delete query though Java Eclipse connected to MS Access 【发布时间】：2015-10-02 02:12:29 【问题描述】：MS Access 中删除记录的问题。打印堆栈跟踪时显示此错误 net.ucanaccess.jdbc.UcanaccessSQLException：UCAExc:::3.0.1 用户缺少权限或找不到对象：电话 在 net.ucanaccess.jdbc.UcanaccessStatement.executeUpdate(UcanaccessStatement.java:222) 在第三层.GeneralDBAccess.delete(GeneralDBAccess.java:223) 在 secondTier.DataStorage.deleteConfirmed(DataStorage.java:79) 首先Tier.UserInterface.begin(UserInterface.java:124) 首先Tier.ItemDriver.main(ItemDriver.java:16) 引起：java.sql.SQLSyntaxErrorException：用户缺少权限或找不到对象：PHONE 在 org.hsqldb.jdbc.JDBCUtil.sqlException（未知来源） 在 org.hsqldb.jdbc.JDBCUtil.sqlException（未知来源） 在 org.hsqldb.jdbc.JDBCStatement.fetchResult（未知来源） 在 org.hsqldb.jdbc.JDBCStatement.executeUpdate（未知来源） 在 net.ucanaccess.jdbc.ExecuteUpdate.executeWrapped（ExecuteUpdate.java:67） 在 net.ucanaccess.jdbc.AbstractExecute.executeBase(AbstractExecute.java:152) 在 net.ucanaccess.jdbc.ExecuteUpdate.execute（ExecuteUpdate.java:50） 在 net.ucanaccess.jdbc.UcanaccessStatement.executeUpdate(UcanaccessStatement.java:220) ... 4 更多 引起：org.hsqldb.HsqlException：用户缺少权限或找不到对象：PHONE 在 org.hsqldb.error.Error.error（未知来源） 在 org.hsqldb.error.Error.error（未知来源） 在 org.hsqldb.ExpressionColumn.checkColumnsResolved（未知来源） 在 org.hsqldb.ParserDML.compileDeleteStatement（未知来源） 在 org.hsqldb.ParserCommand.compilePart（未知来源） 在 org.hsqldb.ParserCommand.compileStatements（未知来源） 在 org.hsqldb.Session.executeDirectStatement（未知来源） 在 org.hsqldb.Session.execute（未知来源） ... 10 更多
我的用户界面
包第一层；
导入 javax.swing.JOptionPane;
导入例外。*;
导入 java.sql.*;
导入第二层。*;
公共类用户界面
public void begin()
//create a data storage
DataStorage product =new DataStorage();
//display the menu and process phone & simcard
boolean finished = false;
// open file before anything else is done
try
ItemWorker.initialize();
product.getAll();
JOptionPane.showMessageDialog (null, "\n** Database successfully opened **\n", "Success", JOptionPane.PLAIN_MESSAGE);
catch (SQLException se)
JOptionPane.showMessageDialog(null, "\n**** ERROR: Problem opening database ****\n" + se.getMessage(), "ERROR", JOptionPane.ERROR_MESSAGE);
finished = true;
catch (ClassNotFoundException cnfe)
JOptionPane.showMessageDialog(null, "\n** ERROR: Cannot find database **\n", "ERROR", JOptionPane.ERROR_MESSAGE);
finished = true;
if (finished)
JOptionPane.showMessageDialog(null, "\n*** Fatal ERROR - Program Ended ***\n" +
"\n*** Please contact you computer services centre ***\n", "ERROR", JOptionPane.ERROR_MESSAGE);
else
try
product.sort();
catch (ClassCastException cce)
JOptionPane.showMessageDialog (null, "Data not sorted properly", "Sorting Error", JOptionPane.INFORMATION_MESSAGE);
while (!finished)
int selection = showMenu();
switch (selection)
case 1: try
product.add(addPhone());
product.sort();
catch (DuplicateException de)
JOptionPane.showMessageDialog (null, "ERROR: Cannot add Phone - key already exists in database!", "ERROR", JOptionPane.ERROR_MESSAGE);
catch (SQLException se)
JOptionPane.showMessageDialog (null, "ERROR: Problem with database - cannot add record!", "ERROR", JOptionPane.ERROR_MESSAGE);
break;
case 2: try
product.add(addSimCard());
product.sort();
catch (DuplicateException de)
JOptionPane.showMessageDialog (null, "ERROR: Cannot add SimCard - key already exists in database!", "ERROR", JOptionPane.ERROR_MESSAGE);
catch (SQLException se)
JOptionPane.showMessageDialog (null, "ERROR: Problem with database - cannot add record!", "ERROR", JOptionPane.ERROR_MESSAGE);
break;
case 3: String phoneID = JOptionPane.showInputDialog(null, "What is the Phone ID?", "Phone Enquiry", JOptionPane.INFORMATION_MESSAGE);
int index = product.find (new Phone (phoneID.trim()));
if (index < 0)
JOptionPane.showMessageDialog(null, "Phone not Found - please check Item Code", "Not Found", JOptionPane.INFORMATION_MESSAGE);
else
JOptionPane.showMessageDialog(null, "The Phone Details are: \n\n" + product.get(index) + "\n", "Item Details", JOptionPane.PLAIN_MESSAGE);
break;
case 4: String simcardID = JOptionPane.showInputDialog(null, "What is the Simcard ID?", "Sim Card Enquiry", JOptionPane.INFORMATION_MESSAGE);
int index1 = product.find (new SimCard (simcardID.trim()));
if (index1 < 0)
JOptionPane.showMessageDialog(null, "Sim Card not Found - please check Item Code", "Not Found", JOptionPane.INFORMATION_MESSAGE);
else
JOptionPane.showMessageDialog(null, "The Phone Details are: \n\n" + product.get(index1) + "\n", "Item Details", JOptionPane.PLAIN_MESSAGE);
break;
case 5: phoneID = JOptionPane.showInputDialog (null, "What is the Item Code?", "Phone Enquiry", JOptionPane.INFORMATION_MESSAGE);
try
Phone p = (Phone) product.delete (new Phone (phoneID.trim()));
int respone = JOptionPane.showConfirmDialog(null, p + "\nAre you sure want to delete this record?\n", "Confirm Delete?", JOptionPane.YES_NO_OPTION);
if (respone == JOptionPane.YES_OPTION)
try
product.deleteConfirmed (product.find (p));
product.sort();
catch (NotFoundException nfe)
JOptionPane.showMessageDialog(null, "Phone not found - please check Item Code", "Not Found", JOptionPane.INFORMATION_MESSAGE);
catch (SQLException se)
se.printStackTrace();
else
JOptionPane.showMessageDialog(null, "The Phone Record has NOT been Deleted", "Not Deleted", JOptionPane.INFORMATION_MESSAGE);
catch (NotFoundException nfe)
JOptionPane.showMessageDialog (null, "Phone not found - please check Item Code", "Not Found", JOptionPane.INFORMATION_MESSAGE);
break;
case 6: simcardID = JOptionPane.showInputDialog (null, "What is the Item Code?", "Sim Card Enquiry", JOptionPane.INFORMATION_MESSAGE);
try
SimCard s = (SimCard) product.delete (new SimCard (simcardID.trim()));
int respone = JOptionPane.showConfirmDialog(null, s + "\nAre you sure want to delete this record?\n", "Confirm Delete?", JOptionPane.YES_NO_OPTION);
if (respone == JOptionPane.YES_OPTION)
try
product.deleteConfirmed (product.find (s));
product.sort();
catch (NotFoundException nfe)
JOptionPane.showMessageDialog(null, "Sim Card not found - please check Item Code", "Not Found", JOptionPane.INFORMATION_MESSAGE);
catch (SQLException se)
se.printStackTrace();
else
JOptionPane.showMessageDialog(null, "The Sim Card Record has NOT been Deleted", "Not Deleted", JOptionPane.INFORMATION_MESSAGE);
catch (NotFoundException nfe)
JOptionPane.showMessageDialog (null, "Sim Card not found - please check Item Code", "Not Found", JOptionPane.INFORMATION_MESSAGE);
break;
case 7: phoneID = JOptionPane.showInputDialog (null, "What is the Phone's ID code?", "Phone Enquiry", JOptionPane.INFORMATION_MESSAGE);
try
Phone p = (Phone) product.update (new Phone (phoneID.trim()));
int response = JOptionPane.showConfirmDialog (null, p + "\nAre you sure you wish to update this record?\n", "Confirm Update?", JOptionPane.YES_NO_OPTION);
if (response == JOptionPane.YES_OPTION)
try
product.updateConfirmed (product.find (p));
product.sort(); // updating shouldn't alter the order, but sort it just in case!!
catch (NotFoundException nfe)
JOptionPane.showMessageDialog (null, "Phone not found - please check Phone's ID code", "Not Found", JOptionPane.INFORMATION_MESSAGE);
catch (SQLException se)
se.printStackTrace();
else
// Phone record not updated
JOptionPane.showMessageDialog (null, "The Phone Record has NOT been Updated", "Not Updated", JOptionPane.INFORMATION_MESSAGE);
catch (NotFoundException nfe)
JOptionPane.showMessageDialog (null, "Phone not found - please check Phone ID Code", "Not Found", JOptionPane.INFORMATION_MESSAGE);
break;
case 8: JOptionPane.showMessageDialog (null, "This option is not yet available");
break;
case 9: JOptionPane.showMessageDialog(null, "Displaying the item information ...", "Item List", JOptionPane.PLAIN_MESSAGE);
for (int i=0; i<product.size(); i++)
JOptionPane.showMessageDialog(null, product.get(i), "Item Details", JOptionPane.PLAIN_MESSAGE);
break;
case 10: finished = true;
try
ItemWorker.terminate();
JOptionPane.showMessageDialog(null, " ** Database successfully closed **", "All OK", JOptionPane.INFORMATION_MESSAGE);
catch (SQLException se)
JOptionPane.showMessageDialog(null, "ERROR: Database not closed correctly", "ERROR", JOptionPane.ERROR_MESSAGE);
JOptionPane.showMessageDialog(null, " *** Program Ended ***\n Have a nice day!");
break;
default: JOptionPane.showMessageDialog(null, "\n** Invalid Selection **\n", "ERROR", JOptionPane.ERROR_MESSAGE);
//end switch
//end while loop
//end begin
public int showMenu()
int selection = 0;
try
String stringSelection = JOptionPane.showInputDialog(
"******* MENU *******\n\n" +
"1. Add a new Phone\n" +
"2. Add a new Sim Card\n" +
"3. Find Individual Phone's Details\n" +
"4. Find Individual Sim Card's Details\n" +
"5. Delete a Phone data\n" +
"6. Delete a Sim Card data\n" +
"7. Update Phone data\n" +
"8. Update Sim Card data\n" +
"9. Display all Details\n" +
"10. Exit Program\n\n" +
"Type the number of your selection, and click OK: ");
selection = Integer.parseInt(stringSelection.trim());
return selection;
catch (Exception e)
selection = 20;
return selection;
// end showMenu()
public SimCard addSimCard ()
SimCard s = new SimCard();
// validate
String sId = JOptionPane.showInputDialog (null, "What is the Sim Card ID?").trim().toUpperCase();
s.setSimcardId (sId);
String ic = (JOptionPane.showInputDialog(null, "\nWhat is the item code of the product?")).trim().toUpperCase();
//trim() gets rid of leading & trailing whitesapce
s.setItemCode (ic);
//get their item code
String iCode = extractItemCode (ic);
String categories = null;
categories = JOptionPane.showInputDialog (null, "Add category of this " +iCode+ "?").trim();
int quantity = 0;
do // range - 0 to 99999
String stringiQuantity = JOptionPane.showInputDialog (null, "What is the quantity of this "+iCode+ "?");
int intQuantity = Integer.parseInt(stringiQuantity);
quantity = s.setQuantity ((int)intQuantity);
if (quantity <= 0 && quantity > 9999)
JOptionPane.showMessageDialog (null, "Error - PhoneNo must be greater than 0 and less than 99999999", "ERROR", JOptionPane.ERROR_MESSAGE);
while (quantity <= 0 && quantity > 9999);
double price = 0.0;
price = Double.parseDouble(JOptionPane.showInputDialog ("What is the price of this "+ic+ "?").trim());
String br_String = null;
do//validate input if type in wrong
br_String = JOptionPane.showInputDialog ("This " +iCode+ " service provider is (Telstra, Optus, Vodaphone)").trim();
if (!br_String.equals ("Telstra") && !br_String.equals("Optus")
&& !br_String.equals ("Vodaphone"))
JOptionPane.showMessageDialog (null, "Error - Sim Card must be Telstra, Optus, Vodaphone", "ERROR", JOptionPane.ERROR_MESSAGE);
while (!br_String.equals ("Telstra") && !br_String.equals("Optus")
&& !br_String.equals ("Vodaphone"));
String expiryDate = null;
expiryDate = JOptionPane.showInputDialog ("When is the expiry date of this " +iCode+ "?").trim();
int num = 0;
do
String stringiNumber = JOptionPane.showInputDialog ("What is the number of this " +iCode+ "?");
int intNum = Integer.parseInt(stringiNumber);
num = s.setQuantity ((int)intNum);
if (num < 0)
JOptionPane.showMessageDialog (null, "Error - value must be 0 or more", "Error", JOptionPane.ERROR_MESSAGE);
while (num < 0);
SimCard s1 = new SimCard(ic, categories , (int)quantity, (double)price, br_String, expiryDate, (int)num, sId);
return s1;
public Phone addPhone()
Phone p = new Phone();
// validate what we can as we go
String pId = JOptionPane.showInputDialog (null, "What is the Phone ID?").trim().toUpperCase();
p.setPhoneId (pId);
String ic = (JOptionPane.showInputDialog(null, "\nWhat is the item code of the product?")).trim().toUpperCase();
//trim() gets rid of leading & trailing whitesapce
p.setItemCode (ic);
//get their item code
String iCode = extractItemCode (ic);
String categories = null;
categories = JOptionPane.showInputDialog (null, "Add category of this " +iCode+ "?").trim();
int quantity = 0;
do // range - 0 to 9999
String stringiQuantity = JOptionPane.showInputDialog (null, "What is the quantity of this "+iCode+ "?");
int intQuantity = Integer.parseInt(stringiQuantity);
quantity = p.setQuantity ((int)intQuantity);
if (quantity <= 0 && quantity > 9999)
JOptionPane.showMessageDialog (null, "Error - PhoneNo must be greater than 0 and less than 99999999", "ERROR", JOptionPane.ERROR_MESSAGE);
while (quantity <= 0 && quantity > 9999);
double price = 0.0;
price = Double.parseDouble(JOptionPane.showInputDialog ("What is the price of this "+iCode+ "?").trim());
String pType = null;
do//validate input if type in wrong
pType = JOptionPane.showInputDialog (null, "What is the brand of this " +iCode+ "(Samsung, HTC, Iphone)?").trim();
if (!pType.equals ("Samsung") && !pType.equals("Iphone")
&& !pType.equals ("HTC"))
JOptionPane.showMessageDialog (null, "Error - Phone Type must be Samsung, HTC, Iphone", "ERROR", JOptionPane.ERROR_MESSAGE);
while (!pType.equals ("Samsung") && !pType.equals("Iphone")
&& !pType.equals ("HTC"));
String model =null;
model = JOptionPane.showInputDialog ("What is the model of this " +iCode+ "?").trim().toLowerCase();
String os = null;
do
os = JOptionPane.showInputDialog ("What is the OS of this model in "+iCode+"?").trim();
if (!os.equals ("android") && !os.equals("ios")
&& !os.equals ("Windows"))
JOptionPane.showMessageDialog (null, "Error - Phone Type must be Android, IOS, Windows", "Error", JOptionPane.ERROR_MESSAGE);
while (!os.equals ("Android") && !os.equals("IOS")
&& !os.equals ("Windows"));
Phone hp = new Phone (iCode, categories , (int)quantity, (double)price, pType, model, os, pId);
return hp;
public String extractItemCode (String sn)
int index = sn.indexOf(' ');
String itemsCode;
if (index !=-1)
itemsCode = sn.substring(0,index).trim();
else
itemsCode = sn;
return itemsCode;
通用数据库访问
包第三层；
导入 java.sql.*;
导入 java.util.ArrayList; // 用于对象的 ArrayList
导入例外。*;
导入第二层。*;
公共类 GeneralDBAccess
private static Item aItem;
private static String url;
private static Connection aConnection;
private static Statement aStatement;
// Implement the three static methods ************
// initialise & terminate - called from PersonWorker
// getAll - called from DataStorage
public static void initialize() throws ClassNotFoundException, SQLException
// The Data Source Name (DSN) is "persons.accdb"
url = "jdbc:odbc:MS Access Database;DBQ=.\\stocks.accdb";
// load the jdbc - odbc bridge driver for Windows
Class.forName("net.ucanaccess.jdbc.UcanaccessDriver");
// create connection instance
aConnection = DriverManager.getConnection ("jdbc:ucanaccess://stocks.accdb");
// create statement object instance for this connection
aStatement = aConnection.createStatement();
public static void terminate() throws SQLException
//close db connection
aStatement.close();
aConnection.close();
public static ArrayList <Item> getAll() throws SQLException
ArrayList <Item> items = new ArrayList<Item>();
String sqlQuery = "SELECT PhoneID, ItemCode, Categories, Quantity, Price, PhoneType, PhoneModel, OperatingSystem " +
"FROM PhoneTable";
ResultSet rs = aStatement.executeQuery(sqlQuery);
boolean moreData = rs.next();
while (moreData)
String phID = rs.getString(1);
String itCode = rs.getString(2);
String category = rs.getString(3);
int quantity = Integer.parseInt (rs.getString(4));
double price = Double.parseDouble (rs.getString(5));
String phoneType = rs.getString(6);
String phoneModel = rs.getString(7);
String operatingSystem = rs.getString(8);
aItem = new Phone (itCode, category , quantity, price, phoneType, phoneModel, operatingSystem, phID);
items.add (aItem);
moreData = rs.next();
sqlQuery = "SELECT SimcardID, ItemCode, Categories, Quantity, Price, SimBrand, ExpiryDate, SimNumber " +
"FROM SimcardTable";
rs = aStatement.executeQuery(sqlQuery);
moreData = rs.next();
while (moreData)
String siID = rs.getString(1);
String itCode = rs.getString(2);
String category = rs.getString(3);
int quantity = Integer.parseInt (rs.getString(4));
double price = Double.parseDouble (rs.getString(5));
String scBrand = rs.getString(6);
String scExpirydate = rs.getString(7);
int scNumber = Integer.parseInt (rs.getString(8));
aItem = new SimCard (itCode, category , quantity, price, scBrand, scExpirydate, scNumber, siID);
items.add(aItem);
moreData = rs.next();
rs.close();
return items;
// Implement the four instance methods *************
// addNew, delete, update - called from each specific PD class
// find - used locally by addNew(), delete(), and update().
private Item find (String objectType, String key) throws NotFoundException, SQLException
aItem = null;
if (objectType.equalsIgnoreCase("Phone"))
String sqlQuery = "SELECT PhoneID, ItemCode, Categories, Quantity, Price, PhoneType, PhoneModel, OperatingSystem " +
"FROM PhoneTable WHERE PhoneID = '"+ key +"'";
ResultSet rs = aStatement.executeQuery (sqlQuery);
boolean gotIt = rs.next();
if (gotIt)
String phID = rs.getString(1);
String itCode = rs.getString(2);
String category = rs.getString(3);
int quantity = Integer.parseInt (rs.getString(4));
double price = Double.parseDouble (rs.getString(5));
String phoneType = rs.getString(6);
String phoneModel = rs.getString(7);
String operatingSystem = rs.getString(8);
aItem = new Phone (itCode, category , quantity, price, phoneType, phoneModel, operatingSystem, phID);
rs.close();
else
rs.close();
throw (new NotFoundException("not found"));
else if (objectType.equalsIgnoreCase("SimCard"))
String sqlQuery1 = "SELECT SimcardID, ItemCode, Categories, Quantity, Price, SimBrand, ExpiryDate, SimNumber " +
"FROM SimcardTable WHERE SimcardID = '" + key + "'";
ResultSet rs = aStatement.executeQuery(sqlQuery1);
boolean gotIt = rs.next();
if (gotIt)
String siID = rs.getString(1);
String itCode = rs.getString(2);
String category = rs.getString(3);
int quantity = Integer.parseInt (rs.getString(4));
double price = Double.parseDouble (rs.getString(5));
String scBrand = rs.getString(6);
String scExpirydate = rs.getString(7);
int scNumber = Integer.parseInt (rs.getString(8));
aItem = new SimCard (itCode, category , quantity, price, scBrand, scExpirydate, scNumber, siID);
rs.close();
else
rs.close();
throw (new NotFoundException("not found"));
return aItem;
// end
public void addNew (Item aItem) throws DuplicateException, SQLException
if (aItem instanceof Phone)
Phone anPhone = (Phone) aItem;
String itCode = anPhone.getItemCode();
String category = anPhone.getCategories();
String quantity = Integer.toString (anPhone.getQuantity());
String price = Double.toString (anPhone.getPrice());
String phoneType = anPhone.getPhoneType();
String phoneModel = anPhone.getModel();
String operatingSystem = anPhone.getOperatingSystem();
String phoneID = anPhone.getPhoneId();
String sqlInsert = "INSERT INTO PhoneTable (PhoneID, ItemCode, Categories, Quantity, Price, PhoneType, PhoneModel, OperatingSystem)" +
" VALUES ('" + phoneID + "', '" + itCode + "', '" + category + "', '" + quantity + "', '" + price + "', '" + phoneType + "', '" + phoneModel + "', '" + operatingSystem + "')";
try
find ("Phone", phoneID);
throw (new DuplicateException ("Phone Already Exists in Database"));
catch (NotFoundException e)
aStatement.executeUpdate(sqlInsert);
else if (aItem instanceof SimCard)
SimCard anSimCard = (SimCard) aItem;
String itCode = anSimCard.getItemCode();
String category = anSimCard.getCategories();
String quantity = Integer.toString (anSimCard.getQuantity());
String price = Double.toString (anSimCard.getPrice());
String scBrand = anSimCard.getBrand();
String scExpirydate = anSimCard.getExpiryDate();
String scNumber = Integer.toString (anSimCard.getNumber());
String simcardID = anSimCard.getSimcardId();
String sqlInsert = "INSERT INTO SimcardTable (SimcardID, ItemCode, Categories , Quantity, Price, SimBrand, ExpiryDate, SimNumber)" +
" VALUES ('" + simcardID + "', '" + itCode + "', '" + category + "', '" + quantity + "', '" + price + "', '" + scBrand + "', '" + scExpirydate + "', '" + scNumber + "')";
try
find ("SimCard", simcardID);
throw (new DuplicateException ("SimCard Already Exists in Database"));
catch (NotFoundException e)
aStatement.executeUpdate(sqlInsert);
public void delete (Item aItem) throws NotFoundException, SQLException
if (aItem instanceof Phone)
Phone anPhone = (Phone) aItem;
String phoneID = anPhone.getPhoneId();
String sqlDelete = "DELETE FROM PhoneTable "
+"WHERE Phone ID = '" + phoneID + "'";
find ("Phone", phoneID);
aStatement.executeUpdate(sqlDelete);
else if (aItem instanceof SimCard)
SimCard anSimCard = (SimCard) aItem;
String simcardID = anSimCard.getSimcardId();
String sqlDelete = "DELETE FROM SimcardTable "
+ "WHERE SimCard ID = '" + simcardID + "'";
find ("SimCard", simcardID);
aStatement.executeUpdate(sqlDelete);
public void update (Item aItem) throws NotFoundException, SQLException
if (aItem instanceof Phone)
Phone anPhone = (Phone) aItem;
String itCode = anPhone.getItemCode();
String category = anPhone.getCategories();
String quantity = Integer.toString (anPhone.getQuantity());
String price = Double.toString (anPhone.getPrice());
String phoneType = anPhone.getPhoneType();
String phoneModel = anPhone.getModel();
String operatingSystem = anPhone.getOperatingSystem();
String phoneID = anPhone.getPhoneId();
String sqlUpdate = "UPDATE PhoneTable SET ItemCode = '"+ itCode +"', "+
"Categories = '"+category+"', "+
" Quantity = '"+ quantity + "', " +
" Price = '" + price +"', "+
" PhoneType = '" + phoneType +"', "+
" PhoneModel = '" + phoneModel +"', "+
" OperatingSystem = '" + operatingSystem +"', "+
" WHERE PhoneID = '" + phoneID + "'";
find ("Phone", phoneID);
aStatement.executeUpdate(sqlUpdate);
else if (aItem instanceof SimCard)
SimCard anSimCard = (SimCard) aItem;
String itCode = anSimCard.getItemCode();
String category = anSimCard.getCategories();
String quantity = Integer.toString (anSimCard.getQuantity());
String price = Double.toString (anSimCard.getPrice());
String scBrand = anSimCard.getBrand();
String scExpirydate = anSimCard.getExpiryDate();
String scNumber = Integer.toString (anSimCard.getNumber());
String simcardID = anSimCard.getSimcardId();
String sqlUpdate = "UPDATE SimcardTable SET ItemCode = '"+ itCode +"', "+
"Categories = '"+category+"', "+
" Quantity = '"+ quantity + "', " +
" Price = '" + price +"', "+
" SimBrand = '" + scBrand +"', "+
" SimExpiryDate = '" + scExpirydate +"', "+
" SimNumber = '" + scNumber +"', "+
" WHERE SimcardID = '" + simcardID + "'";
find ("SimCard", simcardID);
aStatement.executeUpdate(sqlUpdate);
数据存储
包第二层；
导入 java.sql.; 导入 java.util.;
导入例外。*;
导入第三层。*;
公共类数据存储
ArrayListdStore;
public DataStorage()
dStore = new ArrayList<Item>();
public void getAll() throws SQLException
dStore.addAll(GeneralDBAccess.getAll());
public void add (Item i) throws SQLException, DuplicateException
int index = find (i);
if (index < 0)
GeneralDBAccess gdba = new GeneralDBAccess();
gdba.addNew(i);
dStore.add(i);
else
throw new DuplicateException();
public Item update (Item i) throws NotFoundException
int index = find (i);
if (index < 0)
throw new NotFoundException ();
else
i = dStore.get (index);
return i;
public void updateConfirmed (int index) throws NotFoundException, SQLException
GeneralDBAccess gdba = new GeneralDBAccess();
gdba.update (dStore.get (index)); // update Device from the database ...
public Item delete (Item i) throws NotFoundException
int index = find (i);
if (index < 0)
throw new NotFoundException ();
else
i = dStore.get(index);
return i;
public void deleteConfirmed (int index) throws NotFoundException, SQLException
GeneralDBAccess gdba = new GeneralDBAccess();
gdba.delete (dStore.get(index));
dStore.remove(index);
public int find (Item i)
int index = -1;
index = Collections.binarySearch(dStore, i);
return index;
public void sort()
Collections.sort (dStore);
public int size()
return dStore.size();
public Item get (int index)
return dStore.get(index);
不确定是找不到手机数据还是查询有误？ 请对此提供帮助。
【问题讨论】：
它应该做什么？它在哪里失败？你做了什么来调试它？请不要只是粘贴代码，尽量让我们更轻松地帮助您。阅读***.com/help/mcve ...请在阅读后编辑您的问题，并注意代码格式，因为它现在变得不可读。 【参考方案1】：这很可能是罪魁祸首：
String sqlDelete = "DELETE FROM PhoneTable "
+"WHERE Phone ID = '" + phoneID + "'";
您可能应该使用WHERE [Phone ID] =、WHERE PhoneID = 或WHERE Phone_ID =，具体取决于 [PhoneTable] 表中列的实际名称。
（您还应该使用PreparedStatement 和参数化查询，而不是动态SQL。）
【讨论】：
问题已解决，如您所说，请按照列表进行操作。谢谢兄弟。以上是关于通过连接到 MS Access 的 Java Eclipse 无法使用删除查询删除记录的主要内容，如果未能解决你的问题，请参考以下文章
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