VerifyConnection Method
未來的 Microsoft SQL Server 發行版本將不再提供此功能。請避免在新的開發工作中使用此功能,並計劃修改目前使用此功能的應用程式。
The VerifyConnection method tests the connection used by the SQLServer object.
語法
object
.VerifyConnection( [ ReconnectIfDead ] )asBoolean
Parts
- object
Expression that evaluates to an object in the Applies To list.
- ReconnectIfDead
Long integer that controls method behavior as described in Settings.
Prototype (C/C++)
HRESULT VerifyConnection(
LPBOOL pRetVal,
SQLDMO_VERIFYCONN_TYPE VerifyType = SQLDMOConn_ReconnectIfDead);
Settings
Constant | Value | Description |
---|---|---|
SQLDMOConn_CurrentState |
2 |
Return TRUE if connected. |
SQLDMOConn_LastState |
1 |
Return TRUE if connected on last call and still connected, or not connected on last call and still not connected. |
SQLDMOConn_/ReconnectIfDead |
6 |
Default. Attempt to reconnect the SQLServer object if the object has been connected and has lost its connection. Return TRUE if connection exists. |
Returns
TRUE or FALSE as described in Settings.
Applies To:
|