MaxSize 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 MaxSize property returns the greatest length of a data type in bytes, or the precision of the type.
语法
object.MaxSize
Parts
- object
Expression that evaluates to an object in the Applies To list
Data Type
Long
Modifiable
Read-only
Prototype (C/C++)
HRESULT GetMaxSize(LPLONG pRetVal);
备注
For binary and character data types, the MaxSize property returns the greatest number of bytes required to store a string of the type. For example, a user-defined data type defined as varchar(22) requires 22 bytes. The number of characters contained in the string is determined by the mix of single and multibyte characters within it.
For the fixed-precision, numeric data types, the MaxSize property returns the maximum precision of the type.
For all other referenced data types, the MaxSize property returns the number of bytes required to store a value of the type in a Microsoft SQL Server structure representing the type.
Applies To:
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