即使使用Prepared Statement也会出现SQLSyntaxError

Question

我经常遇到SQL语法错误，但我无法理解我在哪里出错了。有人能指出我正确的方向吗？

String sql = "INSERT INTO Weights"
            + " (ID, W1, W2, W3, W4, W5)"
            + " VALUES (?, ?, ?, ?, ?, ?)";

     PreparedStatement statement = mysqlConnect.connect().prepareStatement( sql );
     statement.setString(1, String.valueOf( col-1 ) );
     statement.setDouble(2, weights[row][c]);
     statement.setDouble(3, weights[row][c]);
     statement.setDouble(4, weights[row][c]);
     statement.setDouble(5, weights[row][c]);
     statement.setDouble(6, weights[row][c]);
     statement.execute(sql);

Answer 1

您的sql语法已关闭，插入语句为。

INSERT INTO table (col1, col2, ...) VALUES(v1, v2, ...)

你基本上没有括号，改为跟随。

String sql = "INSERT INTO Weights"
        + "(ID, W1, W2, W3, W4, W5)"
        + " VALUES (?, ?, ?, ?, ?, ?)";