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

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
4.@?/rdbms/admin/utl32k.sql

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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 12.1.0.1.0

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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Swadhin Ray
Asked:
Swadhin Ray
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1 Solution
 
sdstuberCommented:
make your undo larger
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Swadhin RaySenior Technical Engineer Author Commented:
Thanks for your response. Will try to do that and come back .
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Swadhin RaySenior Technical Engineer Author Commented:
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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sdstuberCommented:
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.
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Swadhin RaySenior Technical Engineer Author Commented:
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:

ALTER TABLESPACE myundo
     ADD DATAFILE '*****\undo02.dbf' SIZE 200M AUTOEXTEND ON
                   NEXT 100M MAXSIZE UNLIMITED;
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Swadhin RaySenior Technical Engineer Author Commented:
Thanks a lot ...
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sdstuberCommented:
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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Swadhin RaySenior Technical Engineer Author Commented:
Thanks @sdstuber.....
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