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|Help Adding An Auto Increment Column into a table|
Might be phpmyadmin, mysql version problem.
| 6:58 pm on Feb 8, 2008 (gmt 0)|
Need a little help - I have done this several times with no problems however when I updated my computer I am now getting errors.
I have a table with values Town,Region I now wish to add in an Auto_Increment column into this table. I use id, int 11, not null, auto_increment & select Primary Key. I click save and get this error:
ALTER TABLE `cities` ADD `id` INT( 11 ) NOT NULL AUTO_INCREMENT FIRST
MySQL said: Documentation
#1075 - Incorrect table definition; there can be only one auto column and it must be defined as a key
I am using: phpMyAdmin - 2.11.3 & MySQL client version: 5.0.51
It works fine on: phpMyAdmin - 22.214.171.124 & MySQL client version: 5.0.20.
| 10:57 pm on Feb 8, 2008 (gmt 0)|
"#1075 - Incorrect table definition; there can be only one auto column and it must be defined as a key"
That's the problem. Only one column may be auto_increment. Is there any particular reason you need two? Generally, auto_increment is just used to generate unique id's for each row.
| 11:12 pm on Feb 8, 2008 (gmt 0)|
Also see [webmasterworld.com...]
| 1:08 am on Feb 9, 2008 (gmt 0)|
Thanks yumigator & LifeInAsia,
I just double checked but there is no other primary field & also says in phpmyadmin "No index defined!" I am sure there is no auto_increment.
I can do all of this in the previous version of phpmyadmin/mysql however when I updated it started giving me this error, so any help?
| 3:53 pm on Feb 9, 2008 (gmt 0)|
alter table cities add id int(11) primary key auto_increment not null;
| 4:16 pm on Feb 9, 2008 (gmt 0)|
You are my hero. One question I have is why did it not add that into the mysql statement even when I clicked the "primary key" checkbox in phpmyadmin?
Thanks - It works!
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