I want my database created once,and it will not changed,but i can't create data when i'm in onCreate()...
public class EventsData extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "events.db";
private static final int DATABASE_VERSION = 1;
public EventsData(Context ctx) {
super(ctx, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + TABLE_NAME + " (" + _ID
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + TIME
+ " TEXT NOT NULL," + TITLE + " TEXT NOT NULL);");
//This doesn't work..
db.execSQL("INSERT INTO"+TABLE_NAME+"VALUES(null, 'hello', 'android');");
}
@Override
public void onUpgrade(SQL开发者_Python百科iteDatabase db, int oldVersion,
int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
onCreate(db);
}
}
The line
db.execSQL("INSERT INTO"+TABLE_NAME+"VALUES(null, 'hello', 'android');
is missing spaces around the TABLE_NAME. If you execute exactly this line, it can't work.
1> Did you open the database ?
2> Also , create another class which will have the utility methods like openDatabase , createTable , deleteTable , insertValues , etc.
Sample syntax for INSERT STATEMENT
databaseDb.execSQL(INSERT INTO TABLE_NAME Values ('Chiranjib','Banerjee',1););
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