Error while upgrading from varchar2(4000) to varchar2(32k)

Posted on 2015-02-06
Last Modified: 2015-02-10
Hello Experts,

I am getting error while while upgrading from varchar2(4000) to varchar2(32k) , that is applying MAX_STRING_SIZE='EXTENDED' .

Steps followed under sys user:

1.alter system set max_string_size=EXTENDED scope=spfile;
2. sqlplus / as sysdba -shutdown immediate
3.Startup upgrade

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After running this we got the message :

plsql procedure sucessfully completed and then :

ORA-01555 Snapshot Too Old

Database 12c Enterprise Edition Release

ORACLE instance started.

Total System Global Area 1653518336 bytes
Fixed Size                  2289016 bytes
Variable Size            1207960200 bytes
Database Buffers          436207616 bytes
Redo Buffers                7061504 bytes
Database mounted.
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-14695: MAX_STRING_SIZE migration is incomplete
Process ID: 17080
Session ID: 1 Serial number: 9

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Question by:Swadhin Ray
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LVL 74

Accepted Solution

sdstuber earned 500 total points
ID: 40593658
make your undo larger
LVL 16

Author Comment

by:Swadhin Ray
ID: 40593734
Thanks for your response. Will try to do that and come back .
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Author Comment

by:Swadhin Ray
ID: 40600208
I did a mistake after executing the script . I didn't shut-down and restarted the database.
When I did that I was able to start it successfully.

I didn't made any change on undo.

Let me know if I can close this ticket or not.
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LVL 74

Expert Comment

ID: 40600792
your output above looks like you were trying to restart your database when you got the error

you can close the ticket if you want.
LVL 16

Author Comment

by:Swadhin Ray
ID: 40600814
I executed the "utl32k.sql" script again and after it was successfully completed, I shut-down the database and then finally started the database .

It worked for me. Not sure why it was giving the error.

Can you please let me know if I have followed the right steps to make larger undo tablespace :

 Add new data files to it:

     ADD DATAFILE '*****\undo02.dbf' SIZE 200M AUTOEXTEND ON
                   NEXT 100M MAXSIZE UNLIMITED;
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Author Closing Comment

by:Swadhin Ray
ID: 40600824
Thanks a lot ...
LVL 74

Expert Comment

ID: 40600907
yes, that's the correct method for adding a file.

alternately, you could extend the files you already have to make them larger.

neither way is necessarily better, use whatever is easiest for you.
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Author Comment

by:Swadhin Ray
ID: 40600927
Thanks @sdstuber.....

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