【发布时间】：2017-11-27 13:27:30
【问题描述】：
我的活动代码
DatabaseHandler db = new DatabaseHandler(this);
db.addRecord(new Record(Price,Item,Details, currentDateandTime));
我的数据库代码
package budgetreport.com.budgetreport;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import java.util.ArrayList;
import java.util.List;
public class DatabaseHandler extends SQLiteOpenHelper {
// All Static variables
// Database Version
private static final int DATABASE_VERSION = 3;
// Database Name
private static final String DATABASE_NAME = "Records_Item Purcashes";
// Contacts table name
private static final String TABLE_RECORDS = "Records";
// Contacts Table Columns names
private static final String KEY_PRICE = "Price";
private static final String KEY_ITEM = "Item";
private static final String KEY_DETAILS = "Details";
private static final String KEY_DATE = "Date";
public DatabaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Creating Tables
@Override
public void onCreate(SQLiteDatabase db) {
String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_RECORDS + "("
+ KEY_PRICE + " INTEGER PRIMARY KEY," + KEY_ITEM + " TEXT,"
+ KEY_DETAILS + " TEXT" + KEY_DATE + " TEXT" + ")";
db.execSQL(CREATE_CONTACTS_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_RECORDS);
// Create tables again
onCreate(db);
}
// Adding new contact
public void addRecord(Record record) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_PRICE, record.getPrice()); // Contact Name
values.put(KEY_ITEM, record.getItem()); // Contact Name
values.put(KEY_DETAILS, record.getDetails()); // Contact Name
values.put(KEY_DATE, record.getDetails()); // Contact Phone Number
// Inserting Row
db.insert(TABLE_RECORDS, null, values);
db.close(); // Closing database connection
}
// Getting single contact
public Record getRecord(int id) {
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.query(TABLE_RECORDS, new String[] { KEY_PRICE,
KEY_ITEM, KEY_DETAILS, KEY_DATE }, KEY_PRICE + "=?",
new String[] { String.valueOf(id) }, null, null, null, null);
if (cursor != null)
cursor.moveToFirst();
Record record = new Record(Integer.parseInt(cursor.getString(0)),
cursor.getString(1), cursor.getString(2));
// return contact
return record;
}
// Getting All Contacts
public List<Record> getAllContacts() {
List<Record> contactList = new ArrayList<Record>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_RECORDS;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Record record = new Record();
record.setPrice(Integer.parseInt(cursor.getString(0)));
record.setItem(cursor.getString(1));
record.setDetails(cursor.getString(2));
record.setDate(cursor.getString(3));
// Adding contact to list
contactList.add(record);
} while (cursor.moveToNext());
}
// return contact list
return contactList;
}
// Getting contacts Count
public int getRecordsCount() {
String countQuery = "SELECT * FROM " + TABLE_RECORDS;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(countQuery, null);
cursor.close();
// return count
return cursor.getCount();
}
// Updating single contact
public int updateContact(Record record) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_PRICE, record.getPrice());
values.put(KEY_DETAILS, record.getDetails());
values.put(KEY_DATE, record.getDate());
// updating row
return db.update(TABLE_RECORDS, values, KEY_PRICE + " = ?",
new String[] { String.valueOf(record.getPrice()) });
}
// Deleting single contact
public void deleteContact(Record record) {
SQLiteDatabase db = this.getWritableDatabase();
db.delete(TABLE_RECORDS, KEY_PRICE + " = ?",
new String[] { String.valueOf(record.getPrice()) });
db.close();
}
}
这是错误
E/SQLiteLog: (1) 表 Records 没有名为 Date 的列 E/SQLiteDatabase：插入日期时出错=צ 详细信息=צ 项目=מ 价格=0 android.database.sqlite.SQLiteException: table Records has no column named Date (code 1): ，同时编译：INSERT INTO Records(Date,Details,Item,Price) VALUES (?,?,?,?) 在 android.database.sqlite.SQLiteConnection.nativePrepareStatement（本机方法） 在 android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:896) 在 android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:507) 在 android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 在 android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:58) 在 android.database.sqlite.SQLiteStatement.(SQLiteStatement.java:31) 在 android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1499) 在 android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1371) 在budgetreport.com.budgetreport.DatabaseHandler.addRecord(DatabaseHandler.java:64) 在budgetreport.com.budgetreport.Report.onClick（Report.java:205） 在 android.view.View.performClick(View.java:5265) 在 android.view.View$PerformClick.run(View.java:21534) 在 android.os.Handler.handleCallback(Handler.java:815) 在 android.os.Handler.dispatchMessage(Handler.java:104) 在 android.os.Looper.loop(Looper.java:207) 在 android.app.ActivityThread.main(ActivityThread.java:5765) 在 java.lang.reflect.Method.invoke（本机方法） 在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
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