Please help on Date format

Question

Please go through the following...
look at my parameters here:
1 select rtrim(name)||', '||rtrim(value) from v$parameter
2* where name like 'nls%'
SQL> /
RTRIM(NAME)||','||RTRIM(VALUE)
nls_language, AMERICAN
nls_territory, AMERICA
nls_sort,
nls_date_language,
nls_date_format,
nls_currency,
nls_numeric_characters,
nls_iso_currency,
nls_calendar,
9 rows selected.
The problem is i am trying to query data as on 15-dec-05 but the result showing of 14th and 15th.. please help me
1 select
2 CR_DATE
3 from audit_payhd
4 where cr_date = '15-DEC-05'
5* and nvouch_no = 'JV50655' or ovouch_no = 'JV50655'
SQL> /
CR_DATE
14-DEC-05
14-DEC-05
15-DEC-05
1 select
2 CR_DATE
3 from audit_payhd
4 where TO_char(cr_date,'DD-MON-YY') = TO_CHAR(TO_DATE('15-DEC-05'),'DD-MON-YY')
5* and nvouch_no = 'JV50655' or ovouch_no = 'JV50655'
SQL> /
CR_DATE
14-DEC-05
14-DEC-05
15-DEC-05
1 select
2 CR_DATE
3 from audit_payhd
4 where TO_char(TRUNC(cr_date),'DD-MON-YY') = TO_CHAR(TO_DATE('15-DEC-05'),'DD-MON-YY')
5* and nvouch_no = 'JV50655' or ovouch_no = 'JV50655'
SQL> /
CR_DATE
14-DEC-05
14-DEC-05
15-DEC-05
1 select
2 CR_DATE
3 from audit_payhd
4 where TO_DATE(cr_date) = TO_DATE('15-DEC-05','DD-MON-YY')
5* and nvouch_no = 'JV50655' or ovouch_no = 'JV50655'
SQL> /
CR_DATE
14-DEC-05
14-DEC-05
15-DEC-05

Answer 1

When I need a condition like
AND    (nvouch_no = 'JV50655' OR ovouch_no = 'JV50655')I sometimes like to write it as
AND    'JV50655' IN (nvouch_no, ovouch_no)or even I suppose
AND    'JV50655' = ANY (nvouch_no, ovouch_no)It's the same thing but it saves you repeating the literal, and it avoids the AND/OR bracketing issue.
SQL> SELECT empno, ename FROM emp WHERE 'KING' = ANY(ename, job)
SQL> @xplan
| Id  | Operation            |  Name       | Rows  | Bytes | Cost  |
|   0 | SELECT STATEMENT     |             |     3 |    45 |     2 |
|*  1 |  TABLE ACCESS FULL   | EMP         |     3 |    45 |     2 |
Predicate Information (identified by operation id):
   1 - filter("EMP"."ENAME"='KING' OR "EMP"."JOB"='KING')