Error (ORA-00923: FROM keyword not found where expected)

ora 923What causes an ORA-00923 error? In a SELECT or REVOKE statement, the keyword FROM was either missing, misplaced, or misspelled. The keyword FROM must followThe ORA-00923: FROM keyword not found where expected error occurs when the FROM keyword is missing, misspelled, or misplaced in the Oracle SQL statement such as select or