Can't see MySQL BIT field value when using SELECT

The reason why you can't see it in terminal is because bit values are non printable characters.

Lets insert following values:

INSERT INTO `my_table` (`ID`, `enabled`)VALUES (1,b'1'),(2,b'0');

Then select them to file:

mysql> SELECT * FROM my_table INTO OUTFILE '/tmp/my_table.txt' FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\n';

First lets view our /tmp/my_table.txtfile as plain text:

"1"," "
"2"," "

and then in hex view:

22 31 22 2C 22 01 22 0A 22 32 22 2C 22 00 22 0A

To be able to see those values you can simply CAST them in SELECT:

SELECT id, CAST(enabled AS UNSIGNED) AS enabled FROM my_table

And that will produce the following output:

+----+---------+| id | enabled |+----+---------+|  1 |       1 ||  2 |       0 |+----+---------+2 rows in set (0.00 sec)

mysql sql bit

Another way you can do it is

SELECT enabled+0 from my_table

mysql sql bit

the simplest way is ORD function:

SELECT ORD(`enabled`) AS `enabled` FROM `my_table`

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