How to change sharepoint database config - sharepoint

Question

Our sharepoint application database ip is now changed, (It is not under my control)
Since it is changed i cannot connect to my web site and cannot connect to central administration.
So how can i find the place where the database ip/name is stored so that i can change the db configration.
i have checked all the web.config files under iis->explore folder
i have changed the 'dsn' key under path
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\14.0\Secure\ConfigDb

Answer 1

You could change the database instance of the application with the SharePoint Management Shell.
If you want to change all application at once you could run following powershell code:
# ForEach schleife
ForEach( $db in get-spdatabase) {
$db.ChangeDatabaseInstance("newDataBaseAddress")
$db.Update()
}
If you want to change only one application you can run following code:
$db = get-spdatabase -identity id
$db.ChangeDatabaseInstance("newDataBaseAddress")
$db.Update()
To get the ids of the applications simply run:
get-spdatabase
To change database server for Central Administration if WSS_Admin is depending on old database run following code:
$centralAdmin=Get-SPWebApplication -IncludeCentralAdministration | ? {$_.DisplayName -match ‘SharePoint Central Administration’}
$good=Get-SPWebApplication -identity placeHereTheIdOfAnApplicationThatHasTheCorrectDatabaseInstance
$centralAdmin.Parent.DefaultDatabaseInstance=$good.Parent.DefaultDatabaseInstance
$centralAdmin.Parent.Update()
$centralAdmin.Update()
I hope i could help.