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我有一個SQLite表並希望將其設置爲默認值。我怎樣才能做到這一點?將默認值設置爲SQLite中的列
下面是我DatabaseHelper類代碼:
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DatabaseHelper extends SQLiteOpenHelper {
private static final String DATABASE_NAME="iFall.db";
public static final String TIME="time";
//public static final String STATUS="status";
//public static final String MINES="loadmines";
//public static final String OPENTILE="openTile";
public DatabaseHelper(Context context)
{
super(context,DATABASE_NAME,null,1);
}
@Override
public void onCreate(SQLiteDatabase arg0) {
// TODO Auto-generated method stub
//CREATE TABLE minesweeper(_id INTEGER PRIMARY KEY AUTOINCREMENT,userId TEXT
arg0.execSQL("CREATE TABLE finalP(_id INTEGER PRIMARY KEY AUTOINCREMENT,time TEXT);");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS finalP");
onCreate(db);
}
}
我要指定一個默認值說50列時間。
如果有幫助,請隨時接受答案。 – Maximus 2011-05-11 17:52:12