Planet MySQL Planet MySQL: Meta Deutsch Español Français Italiano 日本語 Русский Português 中文
Showing entries 1 to 1

Displaying posts with tag: bool (reset)

Are bools bools in MySQL?
+0 Vote Up -0Vote Down

Are bools bools in MySQL - no they're not! Lets show this:


mysql> CREATE TABLE healthcheck ( isworking bool ) ENGINE=MEMORY;Query OK, 0 rows affected (0.14 sec)



mysql> show create table healthcheck\G

*************************** 1. row ***************************

Table: healthcheck

Create Table: CREATE TABLE `healthcheck` (

`isworking` tinyint(1) DEFAULT NULL

) ENGINE=MEMORY DEFAULT CHARSET=latin1

1 row in set (0.00 sec)

So a 'bool' in MySQL is actually a signed tinyint that has range -128 to 127. This information is actually …




  [Read more...]
Showing entries 1 to 1

Planet MySQL © 1995, 2014, Oracle Corporation and/or its affiliates   Legal Policies | Your Privacy Rights | Terms of Use

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.