ORA-01031: insufficient privileges

admin

ORA-01031: insufficient privileges
Cause: An attempt was made to change the current username or password
without the appropriate privilege. This error also occurs if attempting to install a
database without the necessary operating system privileges. When Trusted Oracle
is configure in DBMS MAC, this error may occur if the user was granted the
necessary privilege at a higher label than the current login.
Action: Ask the database administrator to perform the operation or grant the
required privileges. For Trusted Oracle users getting this error although granted
the the appropriate privilege at a higher label, ask the database administrator to
regrant the privilege at the appropriate label.