Hi Paul,
Now, i have this:
CREATE TABLE wl_users(wl_user_id INT NOT NULL AUTO_INCREMENT PRIMARY
KEY, name VARCHAR(255) NOT NULL, email VARCHAR(50) NOT NULL, password
VARCHAR(40) NOT NULL, UNIQUE (wl_user_id, email)) TYPE=MyISAM;
and the issue persists :(
Best Regards,
Deckard
Paul DuBois wrote:
> At 22:43 +0100 10/8/06, Deckard wrote:
>> Hi,
>>
>> Yes, it still allows duplicate (equal) rows to be inserted :(
>>
>> Best Regards,
>> Deckard
>
> I don't see the test case I asked for.
>
> If you're seeing that records are duplicate except that they
> differ in ID value, that doesn't count as duplicate. But in
> that case, I suggest that what you really want is a separate
> PRIMARY KEY on the wl_user_id column, and a UNIQUE index
> on (name, email, password). That will prevent duplicate
> combinations of those three column values.
>
>
>>
>> Paul DuBois wrote:
>>> At 22:21 +0100 10/8/06, Deckard wrote:
>>>> Hi,
>>>>
>>>> Ok, naow i have this:
>>>>
>>>> CREATE TABLE wl_users(wl_user_id INT NOT NULL AUTO_INCREMENT, name
>>>> VARCHAR(255) NOT NULL, email VARCHAR(50) NOT NULL, password
>>>> VARCHAR(32)
>>>> NOT NULL, PRIMARY KEY (wl_user_id, name, email, password))
>>>> TYPE=MyISAM;
>>>>
>>>> and it lets repeated rows.
>>>
>>> You have a PRIMARY KEY on all four columns in the table, so every
>>> combination of values for those four columns is required to be unique.
>>>
>>> Therefore, if you have repeated rows in the table, that's very strange.
>>>
>>> I claim you don't really have repeated rows. :-)
>>>
>>> Can you provide a test case that shows repeats?
>>>
>>>>
>>>> How can i avoid the repeates rows ?
>>>>
>>>> Best Regards,
>>>> Deckard
>>>>
>>>> Paul DuBois wrote:
>>>>> At 22:11 +0100 10/8/06, Deckard wrote:
>>>>>> Hi,
>>>>>>
>>>>>> How do i dreate a table, let's say:
>>>>>>
>>>>>> CREATE TABLE wl_articles(wl_articles_id INT NOT NULL
> AUTO_INCREMENT
>>>>>> PRIMARY KEY, title TEXT NOT NULL,
>>>>>> main TEXT NOT NULL, extended TEXT NOT NULL, permalink
>>>>>> VARCHAR(255) NOT NULL, date DATE NOT NULL, ip VARCHAR(15),
>>>>>> user_agent
>>>>>> VARCHAR(50), status INTEGER NOT NULL,
>>>>>> password VARCHAR(32) NOT NULL) TYPE=MyISAM;
>>>>>>
>>>>>> without allowing INSERTs to repeat rows based on certain
> fields,
>>>>>> for
>>>>>> example, "main" and "status" ?
>>>>>
>>>>> Normally, you would do this by creating a UNIQUE index on the
>>>>> combination
>>>>> of columns. (Or you could use a PRIMARY KEY if both columns are
> NOT
>>>>> NULL.)
>>>>>
>>>>> However, you cannot do what you want in this case. Why? Because
>>>>> main is
>>>>> a TEXT column, and TEXT columns allow a maximum of 255 initial
>>>>> characters
>>>>> to be indexed. That means you cannot use a UNIQUE index to
>>>>> provide a
>>>> > uniqueness constraint on anything from the 256th character on.
>>>
>
>
