SELECT to_CHAR(A.FROM_DATE,'DD-MM-RRRR HH:MIAM'),
to_CHAR(A.TO_DATE,'DD-MM-RRRR HH:MIAM'),
A.PLACE_OF_VISIT,
A.PURPOSE_OF_VISIT,
C.EMPLOYEE_NAME,
A.CONTACT_NO,
B.ABSENCE_TYPE,
A.REMARKS,
D.EMPLOYEE_NAME
FROM EMP_ABSENCE_DETAILS A,
ABSENCE_TYPE B,
EMPLOYEE_MASTER C,
EMPLOYEE_MASTER D
WHERE A.EMP_CODE LIKE '%'
AND A.REASON_OF_ABSENCE = B.CODE
AND A.ENTRY_STATUS ='A'
AND ltrim(rtrim(C.EMPLOYEE_CODE))=ltrim(rtrim((A.OFFICER_EMP_CODE)))
AND ltrim(rtrim(D.EMPLOYEE_CODE))=ltrim(rtrim((A.EMP_CODE)))
AND to_date('30/11/2010','DD/MM/RRRR') >= trunc(A.FROM_DATE)
AND to_date('30/11/2010','DD/MM/RRRR')<= trunc(A.TO_DATE)
РЕДАКТИРОВАТЬ для @ powtac
AND to_date('30/11/2010','DD/MM/RRRR') >= to_date(FROM_DATE,'DD/MM/RRRR')
AND to_date('30/11/2010','DD/MM/RRRR')<= to_date(TO_DATE,'DD/MM/RRRR')
заменено на
AND to_date('30/11/2010','DD/MM/RRRR') >= trunc(A.FROM_DATE)
AND to_date('30/11/2010','DD/MM/RRRR')<= trunc(A.TO_DATE)