Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
Varchar(max) vs Varchar(400)
Message
 
 
À
28/08/2013 10:05:08
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Autre
Versions des environnements
SQL Server:
SQL Server 6.5 and older
Application:
Web
Divers
Thread ID:
01581593
Message ID:
01581598
Vues:
67
To store the emails in separate rows I would have to create a child table. This will complicate the design where it is not really necessary. These - extra emails - will be used by only a few (or just one or two) customers. So adding a child table to store the emails, IMO, is overkill. But from your words that "SQL Server will only store what it needs to" do I understand that Varchar(max) will not add more load than, say Varchar(400)?

>SQL Server will only store what it needs to, but I question the design. Why store them all in one row instead of separate rows?
>
>>Hi,
>>
>>I need to add a column to a table that will store a string of email addresses. I am trying to decide between making this field type Varchar(SomeNumber) or Varchar(max). I expect that there will be need to store, at most, 10 email addresses in this field. So I figure that on average each email will take 40 characters and 400 will give me enough length to store 10 emails. Another approach is to make this field Varchar(max) which, I understand, will give me pretty much unlimited length. But I am concerned that Varchar(max) adds some load to the SQL Server database or SQL Server itself and leaning towards just Varchar(number). Is my concern of Varchar(max) valid? Or what would you do?
>>
>>TIA
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform