title: ORA-00904 : invalid identifier Error
body: <p>Oracle 11g Express Edition ..Error while Creating Table </p>
  
  <pre><code>  CREATE TABLE FLIGHT_FARE (
    FLIGHT_FARE_ID INTEGER  NOT NULL  ,
    FLIGHTROUTES_FR_ID INTEGER  NOT NULL  ,
    TBLFARE_FARE_ID INTEGER  NOT NULL    ,
    PRIMARY KEY(FLIGHT_FARE_ID)  ,
    INDEX FLIGHT_FARE_FKIndex2(TBLFARE_FARE_ID)  ,
  ***INDEX FLIGHT_FARE_FKIndex2(FLIGHTROUTES_FR_ID)) // ERROR ON THIS LINE
  </code></pre>
  
  <p>ORA-00904 : invalid identifier</p>