Migration from SAPDB 7.4 to MaxDB 7.6 (7.7)

Question

Hello,
I hope I'm right here to find a solution for my migration problem.
I have the SAPDB 7.4 in my own application. Now I want to migrate it to a newer Community version 7.6 or 7.7. Since MaxDB is back to SAP I will post my question here.
In a MySQL mailing list I found a comment that the migration from 7.4 to 7.6 should be done by simplify make a backup from 7.4 and restore it into 7.6 (http://lists.mysql.org/maxdb/26124)
I tried this with the DBM GUI. When I start a recovery with initialisation it says "Recovery has completed sucessfully". But than I can't restart the database instance:
-24988 SQL errir [info STATE -d]; -4004,Unknown table name:INFO_STATE
After this the instance is in online mode, but when I try to load the system tables I get:
-24964 error in program execution [load_systab ...]; 3,""C:\test\sapdb\depend\bin\x_python" "C:\test\sapdb\depend\env\lsystab.py" -R "C:\test\apdb\depend" -d MYDB -u dbam*"
I also found a post where some steps described for a migration from 7.3 to 7.6 (http://lists.mysql.com/maxdb/28720), but my source database is 7.4 and the command util_execute migrate give my a SQL error on 7.4
-24988,ERR_SQL: sql error
Is there any HowTo  or tutorial how to migrate from SAPDB 7.4 to 7.6 or 7.7?
I hope, someone can help me....
Thanks in advanced and best regards,
Thomas

Answer 1

THuebner wrote:>
> Hello,
>
> I hope I'm right here to find a solution for my migration problem.
>
> I have the SAPDB 7.4 in my own application. Now I want to migrate it to a newer Community version 7.6 or 7.7. Since MaxDB is back to SAP I will post my question here.
Good choice.
> In a MySQL mailing list I found a comment that the migration from 7.4 to 7.6 should be done by simplify make a backup from 7.4 and restore it into 7.6 (http://lists.mysql.org/maxdb/26124)
Well - actually this is not the recommended procedure.
In fact this it not tested at all. It should work, yep - but there's no guarantee for it.
Why don't you simply use the standard way to upgrade your database?
Use SDBUPD or SDBSETUP and all necessary steps will be done automatically.
> I tried this with the DBM GUI. When I start a recovery with initialisation it says "Recovery has completed sucessfully". But than I can't restart the database instance:
>
-24988 SQL errir [info STATE -d]; -4004,Unknown table name:INFO_STATE
>
> After this the instance is in online mode, but when I try to load the system tables I get:
>
-24964 error in program execution [load_systab ...]; 3,""C:\test\sapdb\depend\bin\x_python" "C:\test\sapdb\depend\env\lsystab.py" -R "C:\test\apdb\depend" -d MYDB -u dbam*"
>
> I also found a post where some steps described for a migration from 7.3 to 7.6 (http://lists.mysql.com/maxdb/28720), but my source database is 7.4 and the command util_execute migrate give my a SQL error on 7.4
-24988,ERR_SQL: sql error
>
> Is there any HowTo  or tutorial how to migrate from SAPDB 7.4 to 7.6 or 7.7?
Sure it's called 'documenation'.
You may want to take a look... [Installation Manual|http://maxdb.sap.com/doc/7_7/44/dd1681a23819d9e10000000a422035/content.htm].
In general it's a good idea to ensure that the system tables are properly loaded before you try the upgrade and that you use the most current patch of your old version (if available).
regards,
Lars