Put together a TIMESTAMP column and a DATE column?

Question

Anyone,
How can I piece together two columns one with a DATE and one with a TIMESTAMP and get the date with the timestamp.
Ex.
col_A = '4/1/1999 12:00:00.000 AM'
col_B = '1/1/1900 9:24:47.000 AM'
Desired Result
new_val = '4/1/1999 9:24:47.000 AM'
Thanks in advance,
Miller

Answer 1

Here is a pruned down version of code:
CREATE OR REPLACE PROCEDURE MAXIMO.load_multiple_eq IS
   CURSOR c1 IS
        SELECT      LOCATION,
          ACTSTART,
          COMPLETIONDATE,
                COMPLETIONTIME,
                SCHEDSTARTDATE,
                SCHEDSTARTTIME                                        
        FROM MAXIMO.NIEHS_FEB_WOEQLIST ;
     rec c1%ROWTYPE;
BEGIN
   OPEN c1;
   LOOP
      FETCH c1 INTO rec;
      EXIT WHEN c1%NOTFOUND;
                Insert into MAXIMO.WORKORDER (  WORKORDER.LOCATION           ,
                                                WORKORDER.ACTSTART           ,
                                                WORKORDER.ACTFINISH          ,
                                                WORKORDER.SCHEDSTART         ,
                                                WORKORDER.SCHEDFINISH           )
                Values (   
                            rec.LOCATION,     /* LOCATION */
                            SYSDATE,          /* ACTSTART */
                            TO_TIMESTAMP(TO_CHAR(rec.COMPLETIONDATE,'MM/DD/YYYY')||' '||TO_CHAR(rec.COMPLETIONTIME,'HH.MI.SS AM'),'MM/DD/YYYY HH.MI.SSXFF AM') ,               /* ACTFINISH */
                            TO_TIMESTAMP(TO_CHAR(rec.SCHEDSTARTDATE,'MM/DD/YYYY')||' '||TO_CHAR(rec.SCHEDSTARTTIME,'HH.MI.SS AM'),'MM/DD/YYYY HH.MI.SSXFF AM') ,               /* SCHEDSTART */
                            rec.SCHEDFINISHDATE /* SCHEDFINISH */  );
   END LOOP;
   CLOSE c1;
END;Thanks,
Miller