Whats wrong with the sql

Question

Hi ALL
( SELECT DISTINCT 'Negotiation' calc_type
, TRUNC(SYSDATE - COALESCE(RECPROP,AMENDREQ,SELECTION_DATE)) days
, contract_number
, ROW_NUMBER ( ) OVER ( PARTITION BY contract_number ORDER BY contract_number )
                         rn
FROM DW_CONTRACT_VW
WHERE (contract_type != 'On Call'
AND amendment_status_code IN ( 3,8,9,10,11,12,13,14,15,16,17,18)
     AND FIRMSIGN IS NULL )
or
(contract_type ='On Call'
and amendment_status_code in (1,5,6,7,8,9,10,11,12,13,14,15,16,17,18)
and firmsign is null))
WHERE rn = 1
why am i getting the following error?
I got the error on the last WHERE statement
ORA-00933 SQL command not properly ended
Cause: The SQL statement ends with an inappropriate clause. For example, an ORDER BY clause may have been included in a CREATE VIEW or INSERT statement. ORDER BY cannot be used to create an ordered view or to insert in a certain order.
Action: Correct the syntax by removing the inappropriate clauses. It may be possible to duplicate the removed clause with another SQL statement. For example, to order the rows of a view, do so when querying the view and not when creating it. This error can also occur in SQL*Forms applications if a continuation line is indented. Check for indented lines and delete these spaces.
any advice is grtly appreciated
thank you

Answer 1

HI,
If you have blank lines in the middle of the statement, SQL*Plus will raise an error unless you have SET SQLBLANKLINES ON.