IsVariableLength Property
この機能は、将来のバージョンの Microsoft SQL Server では削除される予定です。新規の開発作業ではこの機能を使用しないようにし、現在この機能を使用しているアプリケーションは修正することを検討してください。
The IsVariableLength property specifies data length representation handling for a data type.
構文
object
.IsVariableLength
Parts
- object
An expression that evaluates to an object in the Applies To list
Data Type
Boolean
Modifiable
Read-only
Prototype (C/C++)
HRESULT GetIsVariableLength(LPBOOL pRetVal);
解説
If TRUE, the data type represents strings that vary in length, such as those defined as varchar(4).
If FALSE, the data type does not represent strings that vary in length, such as those defined as char(4).
Variability in string representation is easily visible in client software. For example, the string AK retrieved from a column defined as varchar(4) is returned to a client as two characters. If retrieved from a column defined as char(4), the string is padded using a space character so that four characters are returned.