ORACLE- Contol File Missing – Recovery (ORA-00205: error in identifying control file)

 Good Recovery Tips, Thank you:

https://fatdba.com/2012/09/24/contol-file-missing-recovery-ora-00205-error-in-identifying-control-file/

Change Mode Of SSAS

Below are the details how we can change this mode, please note take a backup of existing CUBES before changing this option.

DeploymentModes :

DeploymentMode=2 for Tabular Mode

DeploymentMode=0 for Multidimensional Mode

DeploymentMode=1 is for PowerPivot for SharePoint instances.

Steps:

1. Backup any multidimensional databases on the server and either detach them or delete them.  Once mode is changed this may not work.
2. Copy the msmdsrv.ini file to safe location this can be found here - C:\Program Files\Microsoft SQL Server\MSAS15.MSSQLSERVER\OLAP\Config.
3. Open the config file in Notepad. Change the DeploymentMode property as required - 0 (multidimensional) to 2 (tabular) Save and close the file.
4. Copy the msmdsrv.ini file back to the OLAP\Config directory.
5. Restart the SQL Server Analysis Services instance.

SSRS 2019 Could Not Load Folder Contents - You are not allowed to view this folder

1. Add the user group / service account to the local admin
2. Refresh the URL

SQL Server Agent Not Coming OnLine After Reboot

This issue occurred recently whenever the server was rebooted SQL Server Agent was not coming online. Noticed the below error message in event viewr.

"The SQL Server Agent service failed to start due to the following error:
The service did not respond to the start or control request in a timely fashion."

Resolution As follows:

https://support.microsoft.com/en-in/help/922918/a-service-does-not-start-and-events-7000-and-7011-are-logged-in-window

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
3. In the right pane, locate the ServicesPipeTimeout entry.
   
   Note If the ServicesPipeTimeout entry does not exist, you must create it. To do this, follow these steps:
    
   1. On the Edit menu, point to New, and then click DWORD Value.
   2. Type ServicesPipeTimeout, and then press ENTER.
4. Right-click ServicesPipeTimeout, and then click Modify.
5. Click Decimal, type 60000, and then click OK.
   
   This value represents the time in milliseconds before a service times out.
6. Restart the computer.

Upgradation of SQL Server 2008r2 to 2014 Fails - Valid DSN, Valid Database compatibility level

The below error screen will appear during installation process, the fix is very simple step we need to configure the SSRS database, below screens are self explanatory.

ERROR SCREEN

Open SSRS Configuration Manager and  configure the report server database.

Once its configured we can see below screen.

Re-run the rules and it should go through.