通过

VerifyConnection Method

  • 项目

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 VerifyConnection method tests the connection used by the SQLServer object.

语法

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:

SQLServer Object