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System.out.println("SQLState:??"?+?ex.getSQLState());

System.out.println("ErrorCode:?"?+?ex.getErrorCode());

ex?=?ex.getNextException();

}

}

catch(Exception?ex?)

{

ex.printStackTrace();

}

}

public?ResultSet?getDealInfo()???????????????????????//獲取顧客交易記錄的結果集

{

try

{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");???//指定與數據庫連接使用JDBC-ODBC橋驅動程序

String?url?=?"jdbc:odbc:shop";???????????????????//指定數據源名

connection?=?DriverManager.getConnection(url);???//與數據源建立連接

String?sql?=?"select?cart_table.product_id,cart_table.buy_number,cart_table.customer_name,cart_table.customer_address";

sql+=",product_table.product_name?from?cart_table,product_table?where?cart_table.product_id=product_table.product_id";????//創建獲取顧客交易記錄的SQL語句

statement?=?connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);??//創建Statement接口實例

rs?=?statement.executeQuery(sql);????????????????//將數據存入結果集中

}

catch(SQLException?ex)

{

//捕捉異常

System.out.println("\nERROR:-----?SQLException?-----\n");

while?(ex?!=?null)

{

System.out.println("Message:???"?+?ex.getMessage());

System.out.println("SQLState:??"?+?ex.getSQLState());

System.out.println("ErrorCode:?"?+?ex.getErrorCode());

ex?=?ex.getNextException();

}

}

catch(Exception?ex?)

{

ex.printStackTrace();

}

return?rs;

}

public?ResultSet?getSingleDeal(String?customerName)????//獲取指定顧客的交易記錄的結果集

{

try

{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");???//指定與數據庫連接使用JDBC-ODBC橋驅動程序

String?url?=?"jdbc:odbc:shop";???????????????????//指定數據源名

connection?=?DriverManager.getConnection(url);???//與數據源建立連接

String?sql?=?"select?cart_table.product_id,cart_table.buy_number,cart_table.customer_name,cart_table.customer_address";

sql+=",product_table.product_name?from?cart_table,product_table?where?cart_table.product_id=product_table.product_id?and?cart_table.customer_name='"?+?customerName?+?"'";????//創建獲取指定顧客交易記錄的SQL語句

statement?=?connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);??//創建Statement接口實例

rs?=?statement.executeQuery(sql);????????????????//將數據存入結果集中

}

catch(SQLException?ex)

{

//捕捉異常

System.out.println("\nERROR:-----?SQLException?-----\n");

while?(ex?!=?null)

{

System.out.println("Message:???"?+?ex.getMessage());

System.out.println("SQLState:??"?+?ex.getSQLState());

System.out.println("ErrorCode:?"?+?ex.getErrorCode());

ex?=?ex.getNextException();

}

}

catch(Exception?ex?)

{

ex.printStackTrace();

}

return?rs;

}

public?void?delSingleCustomerDeal(String?customerName)????//刪除指定顧客的交易記錄

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