alter user nomeDoUsuario identified by senha;
faltou colocar o ( ; ) ponto e virgula
]]>Dá uma olhada nesse site: https://community.oracle.com/thread/642253?start=15&tstart=0
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C:\>sqlplus /nolog
SQL*Plus: Release 11.2.0.2.0 Production on Sex Nov 14 12:19:29 2014
Copyright (c) 1982, 2010, Oracle. All rights reserved.
SQL> conn / as sysdba
ERROR:
ORA-01031: insufficient privileges
SQL>
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