Length Property
后续版本的 Microsoft SQL Server 将删除该功能。请避免在新的开发工作中使用该功能，并着手修改当前还在使用该功能的应用程序。
The Length property specifies the maximum number of characters or bytes accepted by the referenced column or user-defined data type.
语法
object
.Length [=value]
Parts
- object
An expression that evaluates to an object in the Applies To list
- value
A long integer greater than or equal to 1
Data Type
Long
Modifiable
Read/write
Prototype (C/C++)
HRESULT GetLength(LPLONG pRetVal);
HRESULT SetLength(LONG pRetVal);
备注
For SQL Distributed Management Objects (SQL-DMO) objects referencing columns and user-defined data types defined on character data types, such as char and nchar, interpret the Length property as a number of characters. For objects referencing columns and user-defined data types defined on binary data types, such as varbinary, interpret the Length property as a number of bytes.