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Author Alter DATABASE
Angelos

2005-06-03, 7:23 am

Hello jsut a quick question...
Is it possible to alter the DATABASE structure after it is CREATED AND
POPULATED WITH RECORDS.
For example RENAME fields, Change datatypes etc...
If not what is the best way of doing it and then restore my data?

I use MySQL - MyISAM tables
Thanks!!!


Felix Geerinckx

2005-06-03, 7:23 am

On 03/06/2005, Angelos wrote:

> Hello jsut a quick question...
> Is it possible to alter the DATABASE structure after it is CREATED
> AND POPULATED WITH RECORDS.
> For example RENAME fields, Change datatypes etc...


http://dev.mysql.com/doc/mysql/en/data-definition.html

--
felix
Bill Karwin

2005-06-03, 1:23 pm

Angelos wrote:
> Hello jsut a quick question...
> Is it possible to alter the DATABASE structure after it is CREATED AND
> POPULATED WITH RECORDS.
> For example RENAME fields, Change datatypes etc...


Yes, ALTER TABLE can do a lot of changes like this. Subject to
limitations that you might expect, for example what should it do with
data if you change a VARCHAR(100) to a VARCHAR(6), or for that matter to
an INTEGER?

http://dev.mysql.com/doc/mysql/en/alter-table.html

Regards,
Bill K.
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