Question

我正在创建银行管理系统，并且面临存款类别错误

SQLSyntaxErrorException：ORA-00933：SQL命令未正确结束

代码为：

try {
 String a = t1.getText();
 String b = t2.getText();

 if (ae.getSource() == b1) {
  if (t1.getText().equals("")) {

   JOptionPane.showMessageDialog(null, "Please enter the Amount to you want to Deposit");

  } else {

   conn c1 = new conn();

   ResultSet rs = c1.s.executeQuery(" select * from bank where pin = '" + b + "' ");

   double balance = 0;
   if (rs.next()) {
    String pin = rs.getString("pin");

    balance = rs.getDouble("balance");

    double d = Double.parseDouble(a);

    balance += d;

    String q1 = "insert into bank values('" + pin + "','" + d + "',null,'" + balance + "')";

    c1.s.executeUpdate(q1);
   }

我已尝试解决此问题，但无法执行。问题是余额未插入银行表中，并且我正面临此错误，请问有人可以帮忙...

Answer 1

尝试在Oracle数据库表中使用如下所示的插入语句，并确保bank表只有4列

String sql = "insert into bank values(?,?,?,?) ";
PreparedStatement pst = con.prepareStatement(sql);
pst.setString(1, pin);
pst.setString(2, d);
pst.setString(3, null);
pst.setString(4, balance);

如何修复SQLSyntaxErrorException？

1 个答案: