BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  field length in syscolumns table          BorlandTalk.com Forum Index -> Delphi Databases (SQL Servers) View previous topic :: View next topic   Author Message Oscar Espinosa (Egaraset, Guest Posted: Tue Sep 16, 2003 9:58 am    Post subject: field length in syscolumns table Hello, I'm executing a query to syscolumns table to retrieve the size of the fields of a table... Everything runs ok except when type is nvarchar, when the length field is the double of the real size. I've noticed that there's a field called prec that has the correct value. It's possible that when a field is nvarchar the length field is double than the real size? Can I consider that to divide it by two when I have the result or I've to retrieve prec field in this case? It happens with other field type? thanks very much -- Oscar Espinosa Back to top Martijn Tonies Guest Posted: Tue Sep 16, 2003 1:13 pm    Post subject: Re: field length in syscolumns table Hi Oscar, Quote: I'm executing a query to syscolumns table to retrieve the size of the fields I assume you are talking about MS SQL Server here? Quote: of a table... Everything runs ok except when type is nvarchar, when the length field is the double of the real size. I've noticed that there's a field called prec that has the correct value. It's possible that when a field is nvarchar the length field is double than the real size? Can I consider that to divide it by two when I have the result or I've to retrieve prec field in this case? It happens with other field type? thanks very much The "prec" column holds the length in characters, while the "length" column holds the length in bytes. Nchars occupy two bytes/character, as documented in the BOL. -- With regards, Martijn Tonies Database Workbench - developer tool for InterBase, Firebird & MS SQL Server. 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