Post-Downgrade Tasks for Adaptive Server

After you perform the basic downgrade steps, finish the process by handling residual tasks.

1. Installing system stored procedures over the old version drops auditing information about system stored procedures. Use the output of sp_displayaudit recorded during predowngrade to help determine the system stored procedures for which auditing was enabled. Reenter the audit options using sp_audit. For example, if sp_addlogin was audited in your server before upgrading, run this command to reenable auditing on sp_addlogin:

   sp_audit "exec_procedure", "all", "sp_addlogin", "on"
2. During the upgrade to Adaptive Server 15.7 ESD #2, you should have created a restore_msgs.ebf file. Run this script now to restore your messages back to the version from which you upgraded:

   isql -Usa  -P <sa_password>  -S <server_name> -i <restore_msgs.ebf> 

   Note: If you upgraded from a version 15.0 or 15.0.1 and are reverting back to 15.0 or 15.0.1, run instmsgs.ebf file only from the relevant release.
3. The on-disk structures of stored procedures, triggers, and views may contain statement identity tokens, datatypes, and object references that are not understood by the earlier Adaptive Server versions. You must drop all compiled objects that use features introduced into Adaptive Server subsequent to the version to which you are downgrading.
4. If during the upgrade process you ran update all statistics on syslogins, you must delete statistics for syslogins and re-create them.
   spt_values are dropped and re-created when you run installmaster from the release area you downgraded to. Any new types are eliminated from this table.
5. Run instmstr from the release area of the server to which you downgraded to remove configuration parameters that belong to 15.7 ESD #2, by deleting sysconfigures rows for configuration parameters that do not exist in syscurconfigs. After running instmstr, the error messages no longer appear when you start the server.
   If you start a downgraded server using the 15.7 ESD #2 configuration file, the new options generate an Unknown parameter message. The unknown options are reported the first time you restart the server. You can ignore these messages; the configuration file is rewritten without the unknown options.

   Note: Keywords decrypt_default, xmltable, and path were added in Adaptive Server 15.5 Cluster Edition, making it impossible to create identifiers using these names. You must change applications if you used these names.