Question

您好我将一些数据传递到sqlLite数据库，我想分别发送当前日期和时间。我对编程很陌生，所以任何帮助都会很糟糕。我检查过，其他数据正确存储。

        public class DBHelper extends SQLiteOpenHelper {

    public static final String DATABASE_NAME = "vas_podatki.db";
    public static final String TABLE_NAME = "podatki";
    public static final String COL_1 = "ID";
    public static final String COL_2 = "JAKOST";
    public static final String COL_3 = "DAN";
    public static final String COL_4 = "URA";


    public DBHelper(Context context) {
        super(context, DATABASE_NAME, null, 1);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL("create table "+ TABLE_NAME + "(ID INTEGER PRIMARY KEY AUTOINCREMENT, JAKOST INTEGER, DAN CURRENT_DATE , URA CURRENT_TIME )");

    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXISTS"+ TABLE_NAME);
        onCreate(db);

    }

    public boolean insertData(String jakost){
        SQLiteDatabase db = this.getWritableDatabase();
        ContentValues contentValues = new ContentValues();
        contentValues.put(COL_2,jakost);
        long reuslt = db.insert(TABLE_NAME,null,contentValues);
        if (reuslt == -1)
            return false;
        else
            return true;
    }
}

Answer 1

 private void addVacantEntry(SQLiteDatabase db) {
        db.execSQL("CREATE TABLE " + MyDatabaseColums.VacantEntry.TABLE_NAME + " ("
                + MyDatabaseColums.VacantEntry.V_id + " INTEGER PRIMARY KEY, "
                + MyDatabaseColums.VacantEntry.Date + " NUMERIC);");

如果您想在Sqlite中保存日期时间，属性类型将为 NUMERIC

并将其存储在长

中获取日期时间

喜欢这个

   private long  date_in_long() {

            Calendar c = Calendar.getInstance();
            c.set(Syear, Smonth, Sday, Shoure, Sminute);
            long startDate = c.getTimeInMillis();

            return startDate;
        }

将当前日期和时间分别传递给sqlite

1 个答案: