SQLiteのトランザクションを利用する方法
操作コマンド
SQLiteDatabase db = this.getWritableDatabase();
db.beginTransaction();
db.delete(this.DAILY_EXAMINE, “1=1", null);
db.delete(this.ENTERPRISE_EXAMINE, “1=1", null);
db.delete(this.LAW_ENFOREMENT, “1=1", null);
db.delete(this.EVENT_EXAMINE, “1=1", null);
db.delete(this.LOCUS_OF_POINT, “1=1", null);
db.setTransactionSuccessful();
db.endTransaction();