Answer / sandeep

sys admin is the only authorized one can drop or alter the
table , others can't make any changes.

Answer / neeraj jha

If this is the only error message, you should stop trying to
modify a system table (table owned by sys), as this is not
allowed.

Answer / nitin yadav

u can not drop the column of SYS tables

u can drop the veiws or procedure or other plsql objects.

Answer / chandu

Cause: An attempt was made to drop a column from a system
table.
Action: This action is not allowed

Answer / soosairaj

Does not commit your changes, because this table is SYS
schema's table

Answer / master_dba

You do not have enought permission to do requested
operation.
If you need to search oracle errors, you can query all of
them at http://www.allaboutoracle.com

Answer / bhupesh

Dont have the permission to midify the Database Object

Answer / thirumal

Cause
An attempt was made to drop a column from a system table.

Action
This action is not allowed.

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