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I connected to an Oracle 19c database and executed the following SQL:

alter user sys identified by "a b" container=all;

It executed successfully. However, after that I can't connect to Oracle using SQLPlus. Below is my trying:

oracle:[~]$ sqlplus
Enter user-name: sys as sysdba
Enter password:
SP2-0306: Invalid option.
Usage: CONN[ECT] [{logon|/|proxy} [AS {SYSDBA|SYSOPER|SYSASM|SYSBACKUP|SYSDG|SYSKM|SYSRAC}] [edition=value]]
where <logon> ::= <username>[/<password>][@<connect_identifier>]
      <proxy> ::= <proxyuser>[<username>][/<password>][@<connect_identifier>]
Enter user-name: oracle:[~]$
oracle:[~]$
oracle:[~]$
oracle:[~]$ sqlplus sys/"a b"@localhost:1521/ORCLCDB as sysdba
... (not work)
oracle:[~]$ sqlplus sys/\"a b\"@localhost:1521/ORCLCDB as sysdba
... (not work)
oracle:[~]$ sqlplus sys@localhost:1521/ORCLCDB as sysdba
... (type "a b" without quotes and not work)

How can I connect to the database?

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  • Off the top of my head you can connect as “internal” – Gaius Jul 30 at 21:12
  • I'm using Oracle 19c and it seems no "internal". <logon> is: {<username>[/<password>][@<connect_identifier>] | / } [AS {SYSDBA | SYSOPER | SYSASM | SYSBACKUP | SYSDG | SYSKM | SYSRAC}] [EDITION=value] – Just a learner Jul 30 at 21:16
2

Not able to login to oracle using sqlplus utility because username and password contain space

[oracle@o71 ~]$ sqlplus sys/Oracle123@\'localhost/MIN19_O71\' as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Tue Jul 30 23:12:19 2019
Version 19.4.0.0.0

Copyright (c) 1982, 2019, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.4.0.0.0

SQL> alter user sys identified by "Oracle 123";

User altered.

SQL> Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.4.0.0.0

[oracle@o71 ~]$ sqlplus sys/\""Oracle 123\""@\'localhost/MIN19_O71\' as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Tue Jul 30 23:19:25 2019
Version 19.4.0.0.0

Copyright (c) 1982, 2019, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.4.0.0.0

SQL>
|improve this answer
  • Hi @Balazs, thanks for your answer! I'm able to log into the database now. I want to confirm that, by running alter user sys identified by "a b" container=all;, my password is a b or "a b"? Thank you! – Just a learner Jul 30 at 21:23
  • 1
    @Justalearner docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/… "Passwords can contain any single-byte, multibyte, or special characters, or any combination of these, from your database character set, with the exception of the double quotation mark (") and the return character." – Balazs Papp Jul 30 at 21:28

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