How to create a cursor on a union select statement?

Question

Hi,
Using Oracle 10g RAC +ASM ( RELEASE 1002000300)
What are is the proper way to create a cursor on a union select statement?
Is it possible?
code lines, Results in PLS-00201 error: sT := crsR.STATUS; sS := crsR.TIME;
Procedure listed below:
CREATE OR REPLACE PROCEDURE BUILD_SUMMARY IS
CURSOR csrO IS
SELECT
STATUS,
TIME
FROM (
SELECT
SUBSTR(DESCRIPTION,1,50) STATUS,
TO_CHAR(TIMESTAMP,'MM/DD/YY hh12:mi:ss') TIME
FROM GLOBALSALES.CUBE_STATUS
UNION ALL
SELECT
' TOTAL BUILD TIME',
TO_CHAR(TO_DATE('00:00:00','HH24:MI:SS') +(MAX(TIMESTAMP) - MIN(TIMESTAMP)), 'HH24:MI:SS')
FROM GLOBALSALES.CUBE_STATUS);
csrR csrO%ROWTYPE;
sT LONG :='';
sS LONG :='';
BEGIN
FOR csrR IN csrO
LOOP
sT := crsR.STATUS;
sS := crsR.TIME;
DBMS_OUTPUT.PUT_LINE(sT || ' ' || sS);
END LOOP;
END;
/

Answer 1

csrR csrO%ROWTYPE;
Declares the csrR correct? Cursor Record of Cursor Object Type?That line declares one variable CSRR with your column structure described by the cursor (CSRO) type you declared above it. It means the CSRR variable has the columns you had in the SELECT statement in that cursor.
When you run a cursor as you did you don't need to declare the record variable. Try this:
CREATE OR REPLACE PROCEDURE build_summary IS
  CURSOR csro IS
    SELECT status, TIME
      FROM (SELECT substr(description, 1, 50) status, to_char(TIMESTAMP, 'MM/DD/YY hh12:mi:ss') TIME
              FROM globalsales.cube_status
            UNION ALL
            SELECT ' TOTAL BUILD TIME',
                   to_char(to_date('00:00:00', 'HH24:MI:SS') + (MAX(TIMESTAMP) - MIN(TIMESTAMP)),
                           'HH24:MI:SS')
              FROM globalsales.cube_status);
  --csrr csro%ROWTYPE;
  st   LONG := '';
  ss   LONG := '';
BEGIN
  FOR csrr IN csro
  LOOP
    st := csrr.status;
    ss := csrr.time;
    dbms_output.put_line(st || ' ' || ss);
  END LOOP;
END;Also why are you using LONG? It's a deprecated data type and Oracle recommends against using it. Either pick varchar2(4000) or CLOB.
DBMS_OUTPUT.PUT_LINE will implicitly convert that LONG data type anyway.