<![CDATA[Downgrade database]]>I am using mysql database, I just downgrade from 1.1 to 1.0.10, but I cannot downgrade the database, any way to do that?

Checking database:
Your database has format version 221, this tool is compiled for version 105.
You need to upgrade your server before using this database.
Database check aborted

Thank you.

]]>https://forum.netxms.org/topic/1202/downgrade-databaseRSS for NodeFri, 13 Nov 2026 10:35:37 GMTTue, 29 Mar 2011 11:30:01 GMT60<![CDATA[Reply to Downgrade database on Fri, 20 May 2011 08:17:04 GMT]]>Okay. Thank you very much.

Best regards.

]]>https://forum.netxms.org/post/5504https://forum.netxms.org/post/5504Fri, 20 May 2011 08:17:04 GMT<![CDATA[Reply to Downgrade database on Fri, 20 May 2011 07:10:13 GMT]]>No ready to use script. I have to create one. Could you please try my posted patch first, and if it will not help, I'll create downgrade script.

Best regards,
Victor

]]>https://forum.netxms.org/post/5502https://forum.netxms.org/post/5502Fri, 20 May 2011 07:10:13 GMT<![CDATA[Reply to Downgrade database on Fri, 20 May 2011 06:52:18 GMT]]>Hi.

You can try to execute the following SQL script to downgrade database:

DROP TABLE ap_common
...;

Is valid this script for downgrade database from 1.1.1 to 1.1.0?

For these situations, it would be nice nxdbmgr tool had a downgrade option

Best regards.

]]>https://forum.netxms.org/post/5500https://forum.netxms.org/post/5500Fri, 20 May 2011 06:52:18 GMT<![CDATA[Reply to Downgrade database on Wed, 30 Mar 2011 01:46:41 GMT]]>Thanks~ The core is running normal now. But it will stop everytime when I amend the event processing policy. And return "Unable to determine database syntax.

I am planning to make a clean install and migrate data to it.

]]>https://forum.netxms.org/post/5335https://forum.netxms.org/post/5335Wed, 30 Mar 2011 01:46:41 GMT<![CDATA[Reply to Downgrade database on Tue, 29 Mar 2011 12:15:45 GMT]]>You can try to execute the following SQL script to downgrade database:

DROP TABLE ap_common;
DROP TABLE ap_bindings;
DROP TABLE ap_config_files;
ALTER TABLE items DROP COLUMN system_tag;

ALTER TABLE users DROP COLUMN auth_failures;
ALTER TABLE users DROP COLUMN last_passwd_change;
ALTER TABLE users DROP COLUMN min_passwd_length;
ALTER TABLE users DROP COLUMN disabled_until;
ALTER TABLE users DROP COLUMN last_login;
ALTER TABLE users DROP COLUMN password_history;

DROP TABLE network_maps;
DROP TABLE network_map_elements;
DROP TABLE network_map_links;

UPDATE metadata SET var_value='105';

Best regards,
Victor

]]>https://forum.netxms.org/post/5333https://forum.netxms.org/post/5333Tue, 29 Mar 2011 12:15:45 GMT<![CDATA[Reply to Downgrade database on Tue, 29 Mar 2011 12:09:15 GMT]]>Hi!

There are no standard downgrade procedure. It is not safe to just change schema version. I'll take a look how to downgrade database manually.

Best regards,
Victor

]]>https://forum.netxms.org/post/5332https://forum.netxms.org/post/5332Tue, 29 Mar 2011 12:09:15 GMT<![CDATA[Reply to Downgrade database on Tue, 29 Mar 2011 11:35:18 GMT]]>Is it safe to change the SchemaVersion in table metadata?

]]>https://forum.netxms.org/post/5331https://forum.netxms.org/post/5331Tue, 29 Mar 2011 11:35:18 GMT