Specifies the name of a mirror server, allowing you to maintain database availability if a failover event occurs.
SNC SQL Native Client for Microsoft SQL Server
FailoverPartner =value
Parameter |
Description |
|---|---|
value |
Specifies the name of a mirror server. |
None
When failover occurs, the existing PowerBuilder connection to SQL Server is lost. The SNC driver releases the existing connection and tries to reopen it. If reconnection succeeds, PowerBuilder triggers the DBNotification event. The following conditions must be satisfied for PowerBuilder to trigger the failover event:
The FailoverPartner DBParm is supplied at connect time
The SQL Server database is configured for mirroring
PowerBuilder is able to reconnect successfully when the existing connection is lost
When failover occurs:
PowerBuilder returns an error code (998) and triggers the DBNotification event with notification type DBFailover!
Existing cursors cannot be used and should be closed
Any failed database operation can be tried again
Any uncommitted transaction is lost. New transactions must be started
The following example sets the name of a mirror server for failover events:
Database profile Type the mirror server name in the Failover Partner text box on the System page of the Database Profile Setup dialog box.
Application Type the following in code:
my_trans.dbparm="FailoverPartner='myMirrorServer'"
