android中清空一个表。类似truncate table 表名这样的功能 android sqlite 清空数据库的某个表

public void clearFeedTable(){
String sql = "DELETE FROM " + FEED_TABLE_NAME +";";
SQLiteDatabase db = dbHelper.getSQLiteDatabase();
db.execSQL(sql);
revertSeq();
dbHelper.free();
}

private void revertSeq() {
String sql = "update sqlite_sequence set seq=0 where name='"+FEED_TABLE_NAME+"'";
SQLiteDatabase db = dbHelper.getSQLiteDatabase();
db.execSQL(sql);
dbHelper.free();
}

这样就可以让自增长还原