Question

我使用HSQL作为内存数据库进行测试。但是，我无法在列中插入日期。下面是我的表创建脚本：

INSERT INTO OWN_TABLE(ID, NAME, CAPACITY_SUPPLY_DATE) VALUES(2, '4813', '2090-07-15');

我试过的查询：

Caused by: java.sql.SQLDataException: data exception: invalid datetime format

但它给出了

2090-07-15 00:00:00

我也试过了INSERT INTO LABS_CAPACITY_SUPPLY(ID, SHIP_NODE, CAPACITY_SUPPLY_DATE) VALUES(1, '4813', 'TO_DATE(2090-07-30,"yyy-MM-dd")');，但它没有用。

假设oracle语法可能有效，我试过：

Unparseable date: "TO_DATE(2090-07-30,"yyy-MM-dd")"

但得到了2.3.2

有人可以告诉我在HSQL中插入日期的正确方法。我有@Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if(convertView == null){ holder = new ViewHolder(); convertView = inflater.inflate(resource, null); holder.ivMovieIcon = (ImageView)convertView.findViewById(R.id.ivIcon); holder.tvMovie = (TextView)convertView.findViewById(R.id.tvMovie); holder.tvTagline = (TextView)convertView.findViewById(R.id.tvTagline); holder.tvYear = (TextView)convertView.findViewById(R.id.tvYear); holder.tvDuration = (TextView)convertView.findViewById(R.id.tvDuration); holder.tvDirector = (TextView)convertView.findViewById(R.id.tvDirector); holder.rbMovieRating = (RatingBar)convertView.findViewById(R.id.rbMovie); holder.tvCast = (TextView)convertView.findViewById(R.id.tvCast); holder.tvStory = (TextView)convertView.findViewById(R.id.tvStory); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } convertView.setOnClickListener(new View.OnClickListener() { public void onClick(final View v) { Toast.makeText(MainActivity.this, "Name of Director", Toast.LENGTH_LONG).show(); } }); final ProgressBar progressBar = (ProgressBar) convertView.findViewById(R.id.progressBar); ImageLoader.getInstance().displayImage(movieModelList.get(position).getImage(), holder.ivMovieIcon, new ImageLoadingListener() { @Override public void onLoadingStarted(String imageUri, View view) { progressBar.setVisibility(View.VISIBLE); } @Override public void onLoadingFailed(String imageUri, View view, FailReason failReason) { progressBar.setVisibility(View.GONE); } @Override public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) { progressBar.setVisibility(View.GONE); } @Override public void onLoadingCancelled(String imageUri, View view) { progressBar.setVisibility(View.GONE); } }); holder.tvMovie.setText(movieModelList.get(position).getMovie()); holder.tvTagline.setText(movieModelList.get(position).getTagline()); holder.tvYear.setText("Year: " + movieModelList.get(position).getYear()); holder.tvDuration.setText("Duration: " + movieModelList.get(position).getDuration()); holder.tvDirector.setText("Director: " + movieModelList.get(position).getDirector()); // rating bar holder.rbMovieRating.setRating(movieModelList.get(position).getRating()/2); StringBuffer stringBuffer = new StringBuffer(); for(MovieModel.Cast cast : movieModelList.get(position).getCastList()){ stringBuffer.append(cast.getName() + ", "); } holder.tvCast.setText("Cast:" + stringBuffer); holder.tvStory.setText(movieModelList.get(position).getStory()); return convertView; } class ViewHolder{ private ImageView ivMovieIcon; private TextView tvMovie; private TextView tvTagline; private TextView tvYear; private TextView tvDuration; private TextView tvDirector; private RatingBar rbMovieRating; private TextView tvCast; private TextView tvStory; } jar。

Answer 1

使用适当的标准SQL date文字：

INSERT INTO OWN_TABLE
  (ID, NAME, CAPACITY_SUPPLY_DATE) 
VALUES
  (2, '4813', DATE '2090-07-15');

或者，如果您确实想使用to_date()函数，请不要将其放入单引号中。

INSERT INTO LABS_CAPACITY_SUPPLY
  (ID, SHIP_NODE, CAPACITY_SUPPLY_DATE) 
VALUES
  (1, '4813', TO_DATE(2090-07-30,'yyy-MM-dd'));

请注意，对于to_date()函数，格式字符串的大小写无关紧要。 'yyyy-MM-dd'与'YYYY-MM-DD'或'yyyy-mm-dd'相同。格式为不用于Java SimpleDateFormat的格式。

如果您是在Java程序中执行此操作，则不应使用上述任何解决方案。改为使用PreparedStatement：

java.sql.Date dt = ...;
PreparedStatement pstmt = connect.prepareStatement("INSERT INTO OWN_TABLE(ID, NAME, CAPACITY_SUPPLY_DATE) VALUES(?,?,?)";
pstmt.setInt(1, 2);
pstmt.setString(2, "4813");
pstmt.setDate(3, dt);

如何构造java.sql.Date的实例取决于您从何处获取数据。您可以使用SimpleDateFormat来解析用户的输入。或者，如果您使用的是Java 8，则可以使用LocalDate，例如java.sql.Date.valueOf(LocaleDate.of(2090,7,30))

无法将日期插入HSQLdb

1 个答案: