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 IsComputed property reports whether the Column object references a computed Microsoft SQL Server column.
语法
object
.IsComputed [=value]
Parts
- object
An expression that evaluates to an object in the Applies To list
- value
TRUE or FALSE
Data Type
Boolean
Modifiable
Read/write before column creation. Read-only if referencing an existing column.
Prototype (C/C++)
HRESULT GetIsComputed(LPBOOL pRetVal);
HRESULT SetIsComputed(BOOL NewValue);
备注
If TRUE, the referenced column is, or will be created as, a computed column. When creating a computed column, set IsComputed to TRUE and set the ComputedText property to define the column's computed expression.
If FALSE, the Column object references a column that can contain literal values.