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Monday, 2 March 2026

ORA-14693: The MAX_STRING_SIZE parameter must be EXTENDED.

 






SQL>

ALTER PLUGGABLE DATABASE ORCL19 OPEN UPGRADE;



SQL> ALTER PLUGGABLE DATABASE ORCL19 OPEN UPGRADE

*

ERROR at line 1:

ORA-14693: The MAX_STRING_SIZE parameter must be EXTENDED.

Help: https://docs.oracle.com/error-help/db/ora-14693/



SQL> SHOW PARAMETER max_string_size;


NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

max_string_size                      string      STANDARD

SQL> SHUTDOWN IMMEDIATE;

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> ALTER SYSTEM SET max_string_size=EXTENDED SCOPE=SPFILE;

ALTER SYSTEM SET max_string_size=EXTENDED SCOPE=SPFILE

*

ERROR at line 1:

ORA-01034: The Oracle instance is not available for use. Start the instance.

Process ID: 0

Session ID: 0 Serial number: 0

Help: https://docs.oracle.com/error-help/db/ora-01034/






SQL> STARTUP UPGRADE;

ORACLE instance started.


Total System Global Area 6120784560 bytes

Fixed Size                  5022384 bytes

Variable Size            1124073472 bytes

Database Buffers         4982833152 bytes

Redo Buffers                8855552 bytes

Database mounted.

Database opened.

SQL> ALTER SYSTEM SET max_string_size=EXTENDED SCOPE=SPFILE;


System altered.


SQL> @?/rdbms/admin/utl32k.sql


Session altered.



Session altered.


DOC>#######################################################################

DOC>#######################################################################

DOC>   The following statement will cause an "ORA-01722: invalid number"

DOC>   error if the database has not been opened for UPGRADE.

DOC>

DOC>   Perform a "SHUTDOWN ABORT"  and

DOC>   restart using UPGRADE.

DOC>#######################################################################

DOC>#######################################################################

DOC>#


no rows selected


DOC>#######################################################################

DOC>#######################################################################

DOC>   The following statement will cause an "ORA-01722: invalid number"

DOC>   error if the database does not have compatible >= 12.0.0

DOC>

DOC>   Set compatible >= 12.0.0 and retry.

DOC>#######################################################################

DOC>#######################################################################

DOC>#


PL/SQL procedure successfully completed.



Session altered.



0 rows updated.



Commit complete.



System altered.



PL/SQL procedure successfully completed.



Commit complete.



System altered.



Session altered.



Session altered.



Table created.



Table created.



Table created.



Table truncated.



0 rows created.



PL/SQL procedure successfully completed.



STARTTIME

--------------------------------------------------------------------------------

03/02/2026 13:55:45.089424000



PL/SQL procedure successfully completed.


No errors.


PL/SQL procedure successfully completed.



Session altered.



Session altered.



0 rows created.



no rows selected



no rows selected


DOC>#######################################################################

DOC>#######################################################################

DOC>   The following statement will cause an "ORA-01722: invalid number"

DOC>   error if we encountered an error while modifying a column to

DOC>   account for data type length change as a result of enabling or

DOC>   disabling 32k types.

DOC>

DOC>   Contact Oracle support for assistance.

DOC>#######################################################################

DOC>#######################################################################

DOC>#


PL/SQL procedure successfully completed.



PL/SQL procedure successfully completed.



Commit complete.



Package altered.



Session altered.


SQL> SHUTDOWN IMMEDIATE;



ORA-00603: ORACLE server session terminated by irrecoverable error

ORA-01092: ORACLE instance terminated. Disconnection forced

ORA-01013: User requested cancel of current operation.

Process ID: 5168

Session ID: 625 Serial number: 8539

Help: https://docs.oracle.com/error-help/db/ora-00603/




SQL> SHUTDOWN ABORT;


ORA-24324: service handle not initialized

Help: https://docs.oracle.com/error-help/db/ora-24324/

ORA-01041: internal error. hostdef extension doesn't exist




SQL> Disconnected from Oracle AI Database 26ai Enterprise Edition Release 23.26.1.0.0 - Production

Version 23.26.1.0.0



[oracle@centos9 admin]$ sqlplus / as sysdba


SQL*Plus: Release 23.26.1.0.0 - Production on Mon Mar 2 13:58:56 2026

Version 23.26.1.0.0


Copyright (c) 1982, 2025, Oracle.  All rights reserved.


Connected to an idle instance.


SQL> SHUTDOWN ABORT;

ORACLE instance shut down.




SQL> starup ;

SP2-0042: unknown command "starup " - rest of line ignored.

Help: https://docs.oracle.com/error-help/db/sp2-0042/



SQL> startup ;

ORACLE instance started.


Total System Global Area 6120784560 bytes

Fixed Size                  5022384 bytes

Variable Size            1124073472 bytes

Database Buffers         4982833152 bytes

Redo Buffers                8855552 bytes

Database mounted.

Database opened.



SQL> show parameter max_string_size


NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

max_string_size                      string      EXTENDED

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