android.database.sqlite.SQLiteException:表计划没有名为

您好，我已经在数据库中创建了一个表。 当我运行它时，我看到一个疯狂的异常，即没有名为endTime的列。 问题是，我看到我用onCreate方法将该列装箱

守则：

package com.example.pref;

import java.util.ArrayList;
import java.util.List;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class Databasehandler extends SQLiteOpenHelper {

    // All Static variables
    // Database Version
    private static final int DATABASE_VERSION = 1;

    // Database Name
    private static final String DATABASE_NAME = "ScheduleManager";

    // Contacts table name
    private static final String TABLE_SCHEDULE = "schedule";

    // Contacts Table Columns names
    private static final String KEY_ID = "id";
    private static final String KEY_START_TIME = "StartTime";
    private static final String KEY_END_TIME = "EndTime";
    private static final String KEY_MONDAY = "Monday";
    private static final String KEY_TUESDAY = "Tuesday";
    private static final String KEY_WEDNESDAY = "Wednesday";
    private static final String KEY_THURSDAY = "Thursday";
    private static final String KEY_SATURDAY = "Saturday";
    private static final String KEY_FRIDAY = "Friday";
    private static final String KEY_SUNDAY = "Sunday";

    public Databasehandler(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    // + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT,"
    // Creating Tables
    @Override
    public void onCreate(SQLiteDatabase db) {
        String CREATE_SCHEDULE_TABLE = "CREATE TABLE " + TABLE_SCHEDULE + "("
                + KEY_ID + " INTEGER PRIMARY KEY," + KEY_START_TIME
                + " BIGINT," + KEY_END_TIME + " BIGINT," + KEY_MONDAY
                + " INTEGER," + KEY_TUESDAY + " INTEGER," + KEY_WEDNESDAY
                + " INTEGER," + KEY_THURSDAY + " INTEGER," + KEY_FRIDAY
                + " INTEGER," + KEY_SATURDAY + " INTEGER," + KEY_SUNDAY
                + " INTEGER" + ")";
        db.execSQL(CREATE_SCHEDULE_TABLE);
    }

    // Upgrading database
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Drop older table if existed
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_SCHEDULE);

        // Create tables again
        onCreate(db);
    }

    // Adding new Preference
    public void addPreference(Preference pref) {
        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(KEY_ID, pref.getID());
        values.put(KEY_START_TIME, pref.getStartTime());
        values.put(KEY_END_TIME, pref.getEndTime());
        values.put(KEY_MONDAY, pref.getMonday());
        values.put(KEY_TUESDAY, pref.getTuesday());
        values.put(KEY_WEDNESDAY, pref.getWednesday());
        values.put(KEY_THURSDAY, pref.getThursday());
        values.put(KEY_FRIDAY, pref.getFriday());
        values.put(KEY_SATURDAY, pref.getSaturday());
        values.put(KEY_SUNDAY, pref.getSunday());
        // Inserting Row
        db.insert(TABLE_SCHEDULE, null, values);
        db.close(); // Closing database connection
    }

    // Getting single message
    public Preference getPreference(int id) {
        SQLiteDatabase db = this.getReadableDatabase();

        Cursor cursor = db.query(TABLE_SCHEDULE, new String[] { KEY_ID,
                KEY_START_TIME, KEY_END_TIME, KEY_MONDAY, KEY_TUESDAY,
                KEY_WEDNESDAY, KEY_THURSDAY, KEY_FRIDAY, KEY_SATURDAY,
                KEY_SUNDAY }, KEY_ID + "=?contact",
                new String[] { String.valueOf(id) }, null, null, null, null);
        if (cursor != null)
            cursor.moveToFirst();

        Preference pref = new Preference(cursor.getInt(0), cursor.getInt(1),
                cursor.getInt(2), cursor.getInt(3), cursor.getInt(4),
                cursor.getInt(5), cursor.getInt(6), cursor.getInt(7),
                cursor.getInt(8), cursor.getInt(9));
        // return contact
        return pref;
    }

    // Getting All messages
    public List<Preference> getAllPreferences() {
        List<Preference> preferenceList = new ArrayList<Preference>();
        // Select All Query
        String selectQuery = "SELECT  * FROM " + TABLE_SCHEDULE;

        SQLiteDatabase db = this.getWritableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);

        // looping through all rows and adding to list
        if (cursor.moveToFirst()) {
            do {
                Preference pref = new Preference();
                pref.setID(Integer.parseInt(cursor.getString(0)));
                pref.setStartTime(Integer.parseInt(cursor.getString(1)));
                pref.setEndTime(Integer.parseInt(cursor.getString(2)));
                pref.setMonday(Integer.parseInt(cursor.getString(3)));
                pref.setTuesday(Integer.parseInt(cursor.getString(4)));
                pref.setWednesday(Integer.parseInt(cursor.getString(5)));
                pref.setThursday(Integer.parseInt(cursor.getString(6)));
                pref.setFriday(Integer.parseInt(cursor.getString(7)));
                pref.setSaturday(Integer.parseInt(cursor.getString(8)));
                pref.setSunday(Integer.parseInt(cursor.getString(9)));

                // Adding contact to list
                preferenceList.add(pref);
            } while (cursor.moveToNext());
        }

        // return contact list
        return preferenceList;
    }

    // Getting All messages

    public List<Preference> getPreferences(int index, int limit) {
        List<Preference> preferenceList = new ArrayList<Preference>();
        // Select All Query
        String selectQuery = "SELECT  * FROM " + TABLE_SCHEDULE + " LIMIT "
                + index + ", " + limit;

        SQLiteDatabase db = this.getWritableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);

        // looping through all rows and adding to list
        if (cursor.moveToFirst()) {
            do {
                Preference pref = new Preference();
                pref.setID(Integer.parseInt(cursor.getString(0)));
                pref.setStartTime(Integer.parseInt(cursor.getString(1)));
                pref.setEndTime(Integer.parseInt(cursor.getString(2)));
                pref.setMonday(Integer.parseInt(cursor.getString(3)));
                pref.setTuesday(Integer.parseInt(cursor.getString(4)));
                pref.setWednesday(Integer.parseInt(cursor.getString(5)));
                pref.setThursday(Integer.parseInt(cursor.getString(6)));
                pref.setFriday(Integer.parseInt(cursor.getString(7)));
                pref.setSaturday(Integer.parseInt(cursor.getString(8)));
                pref.setSunday(Integer.parseInt(cursor.getString(9)));

                // Adding contact to list
                preferenceList.add(pref);
            } while (cursor.moveToNext());
        }

        // return contact list
        return preferenceList;
    }

    // Getting message Count
    public int getPreferenceCount() {
        // String countQuery = "SELECT * FROM " + TABLE_SCHEDULE;
        String countQuery = "SELECT count(id) FROM " + TABLE_SCHEDULE;
        SQLiteDatabase db = this.getReadableDatabase();
        Cursor cursor = db.rawQuery(countQuery, null);
        cursor.close();
        // return count
        return cursor.getCount();
    }

    // Updating single message
    public int updatePreference(Preference pref) {
        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(KEY_ID, pref.getID());
        values.put(KEY_START_TIME, pref.getStartTime());
        values.put(KEY_END_TIME, pref.getEndTime());
        values.put(KEY_MONDAY, pref.getMonday());
        values.put(KEY_TUESDAY, pref.getTuesday());
        values.put(KEY_WEDNESDAY, pref.getWednesday());
        values.put(KEY_THURSDAY, pref.getThursday());
        values.put(KEY_FRIDAY, pref.getFriday());
        values.put(KEY_SATURDAY, pref.getSaturday());
        values.put(KEY_SUNDAY, pref.getSunday());

        // updating row
        return db.update(TABLE_SCHEDULE, values, KEY_ID + " = ?",
                new String[] { String.valueOf(pref.getID()) });
    }

    // Deleting single message
    public void deleteMessage(Preference pref) {
        SQLiteDatabase db = this.getWritableDatabase();
        db.delete(TABLE_SCHEDULE, KEY_ID + " = ?",
                new String[] { String.valueOf(pref.getID()) });

        // db.close();
    }

    public int deleteAllMessages() {
        SQLiteDatabase db = this.getWritableDatabase();

        return db.delete(TABLE_SCHEDULE, null, null);

    }

}

多谢各位。

---

/mkounal

在设备上部署新应用之前尝试卸载应用您可以使用SQLItemManager检查它是否确实存在尝试在设备上部署新应用之前卸载应用您可以使用SQLItemManager检查它是否确实存在

08-10 11:24:29.976: E/Database(2997): Error inserting id=1 Saturday=0 Thursday=0 Monday=0 Tuesday=0 Wednesday=0 EndTime=0 StartTime=0 Friday=0 Sunday=0
08-10 11:24:29.976: E/Database(2997): android.database.sqlite.SQLiteException: table schedule has no column named EndTime: , while compiling: INSERT INTO schedule(id, Saturday, Thursday, Monday, Tuesday, Wednesday, EndTime, StartTime, Friday, Sunday) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?);