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 FrequencySubDay property specifies the unit for the least significant portion of a scheduled activity.
语法
object
.FrequencySubDay [=value]
Parts
- object
 An expression that evaluates to an object in the Applies To list.
- value
 A long integer that specifies a daily occurrence for the scheduled activity as described in Settings.
Data Type
Long, enumerated
Modifiable
Read/write
Prototype (C/C++)
HRESULT GetFrequencySubDay(SQLDMO_FREQSUB_TYPE* pRetVal);
HRESULT SetFrequencySubDay(SQLDMO_FREQSUB_TYPE NewValue);
Settings
| Constant | Value | Description | 
|---|---|---|
| SQLDMOFreqSub_Hour | 8 | The schedule reflects an activity scheduled using an hour as the unit. | 
| SQLDMOFreqSub_Minute | 4 | The schedule reflects an activity scheduled using a minute as the unit. | 
| SQLDMOFreqSub_Once | 1 | The schedule reflects an activity that occurs once on a scheduled unit. | 
| SQLDMOFreqSub_Unknown | 0 | Subunits are not valid for the scheduled activity. | 
| SQLDMOFreqSub_Valid | 13 | A mask to test schedule subfrequency validity. | 
备注
The FrequencySubDay property specifies the unit for schedule evaluation for schedules for activities occurring several times in one day. Set the FrequencySubDayInterval property to specify the number units.