我们如何以可打印的形式显示 MySQL 位值？

mysql> Select bittest+0 from bit_testing;
+-----------+
| bittest+0 |
+-----------+
|       170 |
|         5 |
|         5 |
+-----------+
3 rows in set (0.00 sec)

mysql> Select BIN(bittest+0) from bit_testing;
+----------------+
| BIN(bittest+0) |
+----------------+
| 10101010       |
| 101            |
| 101            |
+----------------+
3 rows in set (0.00 sec)

mysql> Select OCT(bittest+0) from bit_testing;
+----------------+
| OCT(bittest+0) |
+----------------+
| 二5二            |
| 5              |
| 5              |
+----------------+
3 rows in set (0.05 sec)

mysql> Select HEX(bittest+0) from bit_testing;
+----------------+
| HEX(bittest+0) |
+----------------+
| AA             |
| 5              |
| 5              |
+----------------+
3 rows in set (0.00 sec)