How can we assign a bit value as a number to a user variable?

As we know that the default type of a bit values assigned to user variables is binary strings but we can also assign a bit value to a number by using the following two methods −

By using CAST() function

With the help of CAST(… AS UNSIGNED) the bit value can be assigned a number. The following example will illustrate it −

mysql> SET @abc = CAST(0b1000011 AS UNSIGNED);
Query OK, 0 rows affected (0.00 sec)

mysql> Select @abc;
+------+
| @abc |
+------+
| 67   |
+------+
1 row in set (0.00 sec)

By adding 0(+0)

The bit value can be assigned a number by adding 0(+0) to the bit value. The following example will illustrate it −

mysql> SET @abc = 0b1000011+0;
Query OK, 0 rows affected (0.00 sec)

mysql> Select @abc;
+------+
| @abc |
+------+
| 67   |
+------+
1 row in set (0.00 sec)