Type Property (UserDefinedFunction)
未來的 Microsoft SQL Server 版本將移除這項功能。請避免在新的開發工作中使用這項功能,並規劃修改目前使用這項功能的應用程式。
The Type property returns the user-defined function type.
語法
object.Type
Parts
- object
An expression that evaluates to an object in the Applies To list
Data Type
Long
Modifiable
Read-only
Prototype (C/C++)
HRESULT GetType(SQLDMO_UDF_TYPE *pRetVal);
Returns
A SQLDMO_UDF_TYPE constant that contains one of these values.
Constant |
Value |
Description |
---|---|---|
SQLDMOUDF_Inline |
3 |
Inline function |
SQLDMOUDF_Scalar |
1 |
Scalar function |
SQLDMOUDF_Table |
2 |
Table function |
SQLDMOUDF_Unknown |
0 |
Unknown function type |
備註
A scalar function is applied to all the rows in a table, thereby producing a single value (for example, an aggregate function). An inline function performs a single SELECT statement. A table function performs a series of Transact-SQL statements and returns the results as a table.
[!附註]
If an application calls Type on an instance of SQL Server version 7.0, the constant, SQLDMO_E_SQL80ONLY, and the message "This property or method requires Microsoft SQL Server 2000 or later" are returned.