Reply to Re: More Newbie Questions

Your name:

Reply:


Posted by JA on 10/01/21 11:17

David,

You're right, I'm using Access 2000. I made a table with a primary key and
had no problem adding data.

I looked up TEXT and NTEXT on Books Online. I don't guess I know enough to
see the problems. The field is for product descriptions that are over 8000
characters (quite a few are). They have HTML tags in them, and are displayed
on an asp webpage. Would there be any problems with that?

Thanks, JA


"David Portas" <REMOVE_BEFORE_REPLYING_dportas@acm.org> wrote in message
news:tMSdne7GYNyvpQXfRVn-1w@giganews.com...
>> Why is it that some of my tables are not updateable, and some are??
>
> There could be more than one reason depending on how you are doing the
> updating and what you mean by "not updateable". I'll take a guess that
> you are using a UI such as Enterprise Manager or Access that allows you to
> edit a table. In that case you won't be able to make changes unless your
> table has a unique key (constraint or index). Every table should always
> have a unique key otherwise it isn't possible to guarantee that individual
> rows can be updated. The solution is to add a primary key constraint to
> the table.
>
> If I'm wrong then please explain how you are attempting to update the
> table and what happens when you try (do you get an error message for
> example).
>
>> And I'm told that there is no "memo" type field for SQLServer, and 8000
>> characters is the limit. Unless I go to blob or binary. What does that
>> entail, and what are the consequences?
>
> VARCHAR columns are limited to 8000 characters. For text up to 2GB in size
> you can use the TEXT or NTEXT datatype. TEXT isn't as easy to use in your
> SQL code as VARCHAR is and there are some limitations on what you can and
> cannot do - for example some of the string functions won't work with TEXT
> values. Lookup the TEXT datatype in Books Online.
>
> --
> David Portas
> SQL Server MVP
> --
>
>

[Back to original message]


Удаленная работа для программистов  •  Как заработать на Google AdSense  •  England, UK  •  статьи на английском  •  PHP MySQL CMS Apache Oscommerce  •  Online Business Knowledge Base  •  DVD MP3 AVI MP4 players codecs conversion help
Home  •  Search  •  Site Map  •  Set as Homepage  •  Add to Favourites

Copyright © 2005-2006 Powered by Custom PHP Programming

Сайт изготовлен в Студии Валентина Петручека
изготовление и поддержка веб-сайтов, разработка программного обеспечения, поисковая оптимизация