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分享mysql> create table tblob(id blob);
Query OK, 0 rows affected (0.09 sec)
mysql> insert into tblob values(0x1234ef);
Query OK, 1 row affected (0.09 sec)
mysql> select * from tblob;
+------+
| id |
+------+
| 4? |
+------+
1 row in set (0.00 sec)
mysql> select hex(id) from tblob;
+---------+
| hex(id) |
+---------+
| 1234EF |
+---------+
1 row in set (0.06 sec)
mysql>