Logical OR (where clause) is not capable of change.

select * from V$version;

BANNER
-------------------------------------------------------
Oracle Database 11g Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE    11.2.0.1.0      Production
TNS for 32-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production

ALTER SESSION SET NLS_DATE_FORMAT = 'yyyy-mm-dd hh24:mi:ss';

create table TestTable(ID,DateCol) as
select 1,date '2011-11-11' from dual union all
select 2,date '2012-07-13' from dual union all
select 3,date '2030-12-31' from dual;

-- FirstSQL
SELECT *
  FROM TestTable
 WHERE sysdate <= DateCol
    OR DateCol = date '2011-11-11';

ID  DateCol
--  -------------------
 3  2030-12-31 00:00:00

-- SecondSQL
SELECT *
  FROM TestTable
 WHERE DateCol = date '2011-11-11'
    OR sysdate <= DateCol;

ID  DateCol
--  -------------------
 1  2011-11-11 00:00:00
 3  2030-12-31 00:00:00

Why return record figures are diff

Logical OR (where clause) must be able to change.

(Ex "Where A or B", "where B or" can change)

I found the logical predicate have diff.

set autot trace

-- FirstSQL
SELECT *
  FROM TestTable
 WHERE sysdate <= DateCol
    OR DateCol = date '2011-11-11';

Predicate Information (identified by operation id):
---------------------------------------------------
   1 - filter("DATECOL">=SYSDATE@!)

-- SecondSQL
SELECT *
  FROM TestTable
 WHERE DateCol = date '2011-11-11'
    OR sysdate <= DateCol;

Predicate Information (identified by operation id):
---------------------------------------------------
   1 - filter("DATECOL"=TO_DATE(' 2011-11-11 00:00:00', 'syyyy-mm-dd
              hh24:mi:ss') OR "DATECOL">=SYSDATE@!)

And for 11.2.0.3 as well:

BANNER
-----------------------------------------------------------------------------
Oracle Database 11 g Enterprise Edition Release 11.2.0.3.0 - 64 bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE Production 11.2.0.3.0
AMT for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production

5 selected lines.

SQL > drop table testtable is serving;

Deleted table.

SQL > create table TestTable (ID, DateCol) as
2 Select 1, date '' 2011-11-11 of all the double union
3 select 2, '' 2012-07-13 of all the double union
4 Select 3, date ' 2030-12-31' double.

Table created.

SQL >-FirstSQL
SQL > SELECT *.
2 from TestTable
3. WHERE sysdate<=>
4 GOLD DateCol = date '' 2011-11-11;

ID DATECOL
---------- -------------------
1 11/11/2011 00:00:00
3 31/12/2030 00:00:00

2 selected lines.

SQL >-SecondSQL
SQL > SELECT *.
2 from TestTable
3 WHERE DateCol = date ' 2011-11-11.
4 GOLD sysdate<=>

ID DATECOL
---------- -------------------
1 11/11/2011 00:00:00
3 31/12/2030 00:00:00

2 selected lines.

I believe that I've read about this on Metalink somewhere, have yet to find the document, but I'm sure this is a known bug...

Tags: Database

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Max value return value despite where clause is not not really looking for the reason

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Hello

user5716448 wrote:

Hello

Thanks for the reply.

I guess that's rule ageneral wait even if no line because of the place where the condition.

where 1 = 2 - that is to say isn't true

Thank you

Yes, if there are no rows in the table, or no line meets the conditions in the WHERE clause, it would be logical that the query return lines exactly 0, but it is also logical that the query returns exactly 1 row. People who have designed SQL apperantly thought return 1 row was most helpful.

If you want the query to return 0 rows when there is no data, you can GROUP BY a constant. For example:

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Looks like you are trying to use the MS SQL Server syntax rather than the Oracle syntax.

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Programmatic setting of the place where clause does not.
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I use Jdeveloper 11.1.2.2.

I'm trying to interview some lines of the VO by placing the VO in the programmatic way as it appears in this documentation: http://docs.oracle.com/cd/E15523_01/web.1111/b31974/bcquerying.htm#CHDEBEAF

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http://jdeveloperfaq.blogspot.com/2009/12/FAQ-6-How-to-fine-tune-ADF-Diagnostics.html

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DECODE does not work in the WHERE clause when subquery returns more than one line
Hi gurus,

I want to write a query against the table CCENTERS (Script given below) and wait for the following result:

1. in the transition from a value of 0 for the ID, it returns all the rows in the table.
2. in the passage of one value other than 0, it returns the row corresponding to the given value and all its records of the child.

CCENTER has parent-child relationship in the column ID and the BASE. I use a query with the DECODE function. but the function in the WHERE clause is not capable of managing the subquery with multiple lines of DECODE.

*************************************************
VARIABLE ParaCCenter NUMBER

BEGIN
: paraccenter: = 0;
END;
/

CREATE TABLE ccenters
(id NUMBER,
name VARCHAR2 (20).
number base);

INSERT INTO ccenters VALUES(1,'NUST',null);
INSERT INTO ccenters VALUES(2,'SEECS',1);
INSERT INTO ccenters VALUES(3,'NBS',1);
commit;

SELECT * from ccenters
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/
BEGIN
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SELECT * from ccenters
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/
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*
ERROR at line 3:
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How this query can be rewritten for the given feature. Any response will be appreciated.

Thank you
Try something like this:
```
SELECT * FROM ccenters
WHERE :ParaCCenter = 0
OR id in
  (SELECT id FROM ccenters
   START WITH base=:ParaCCenter
   CONNECT BY PRIOR id = base
   UNION
   SELECT :ParaCCenter FROM dual
  )
```

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Richard,

Perhaps this example can help you solve your problem.

https://Apex.Oracle.com/pls/Apex/f?p=63838:2

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ViewObject where Clause SET based on logged in user roles

Hello Experts
I have a view object based on a custom query to get distinct values from a table. My requirement is to display the results as a listview. The listview is is filled without any problem. But I need to add a where clause clause the object view based on the user roles.
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SerializableAttribute public class CountriesVOImpl extends ViewObjectImpl {}
/**
* This is the default constructor (do not remove).
*/
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}

In class ViewImpl try to replace "executeQueryForCollection" and setWhereClause in this function as:
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To make a long story short, I need to generate the complex dynamic WHERE clause. I don't know what will be the name of the column or the operator of comparison or the value will be until the moment of execution.
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I'm sure that using dynamic SQL opens me up to SQL injection attacks if I use simple string concatenation. I would like to use bind variable if possible.
In any case, it seems like trying to build a dynamic where clause does not seem to work as I want it would be...
```
bv1 := 'colA = 5 and colB >= 9';

query_str := 'SELECT * FROM view WHERE :bv1';

OPEN CUR FOR query_str USING bv1;
```
The code above pours out when I try to run it.
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Hello. I have read briefly upward on things, you suggested, but it seems a bit abstract for me since I was a novice.

Can you give us an explanation or an example of how to use it to accomplish what I need to do?

Do ypu really plan create a query with a WHERE clause that contains a predicate for all possible columns?

Variable bind offer performance when the same query is executed several times with different values for bind variables.

Select * from emp where empno =: v_empno

After the first run Oracle will always be this query in the library cache. The next running can use the version of the cache even if the bind value is different.

Select * from emp where empno =: v_empno;

Select * from emp where ename =: v_ename;

Select * from emp where sal =: v_sal;

Each one is a DIFFERENT query. Yes - each of them uses a variable binding, but queries are different.

So, if your username select EMPNO, an '=', and a value from the first query can be executed. But the next time that the user can select the ENAME column so that 'stored' first request may not be used given that the query does not match.

The third time your user selects SAL so none of the first two queries can be used in the library cache. The use of bind variables gives performance during the SAME QUERY is used multiple times with DIFFERENT values for the variable binding. Oracle is not to analyze the hard query everything simply because the VALUE is different.

So bind variables do not help you if most of the queries were completely DIFFERENT sets of predicates. And SYS_CONTEXT will not help either since that simply provides a way to define binds the values of the variables.

Just for the simple example above, there are at least SIX possible combinations of columns that could choose your user name: empno, ename, sal, empno ename, empno & sal, ename & sal

Small design on the points of view and a Where Clause Board...

Hi all... I just want to check Im doing things right, and he is not a better way to do this...
Running APEX 4.2.5 and XE 11.2
Ive built my application around a community of users who have access to certain groups of data... Ive designed so that there are views and then transparent filter the data of a given user. for example, the view below seamlessly that users can see the filters depending on which application they use, they can see more specifically, what are the features and finally, what group they are actually in.
Create view ENTITIES like)
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and ag.group_name = 'CASH FLOW')
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)
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I note that its faster when a member of a group brings back only a tiny part of the data compared to the other way around... This is why Im asking before implementing another view of the same type.
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Hi Richard,

Miss me a lot of information but:

I think that your design could be allowed. It seems a little too mat, maybe, but I think this could work.

It is important to have the good indexing and use compression of index:

On application_groups (object_name, the GroupName, groupname) compresses

IT compresses to entity_users (username, entity_id)

On the entity_group_members (entity_group, entity_id) compress

I think v as v ('G_ENTITY_GRP_ID') is a user-defined function? If so, if possible, set the deterministic and uses result_cache.

Consider partitioning application_groups type (= object_name?)

dynamic logic in SQL WHERE clause based on the value of the ELEMENT
Hello

I have a report based on the following SQL query.
```
   select dept_no,
       dept_name,
       dept_loc
  from dept
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   // If P1_DEPT_LOC is not null, I want the WHERE clause and IF  P1_DEPT_LOC is null, then I don't need the WHERE clause.
   // how can I build this logic in same SQL
```
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Published by: Deepak_J on March 11, 2010 16:37
where: P1_DEPT_LOC IS NULL or dept_loc =: P1_DEPT_LOC

If dept_loc is not null better would be

where dept_loc = coalesce(:P1_DEPT_LOC,dept_loc)

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NULL as an icon,
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NULL as ToolTip,
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Start with 'MENU_CHILD' is null
connect prior "MENU_PARENT" = "MENU_CHILD."
brothers and sisters of order by 'MENU_ID '.
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that the mistake of me or something else? When using the wizard, she asks (possibly) where clause, this means that when the clause can be used in the SQL statement.
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If you want to prune your tree to show only the elements of the No. 7 usermenu, copy the following code helps you
```
select case when connect_by_isleaf = 1 then 0
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order siblings by "MENU_ID"
```
Concerning

Mahmoud

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&

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v_where: = v_where |' and eq_group2 = "' | : blk_criteria.eq_group2 | " ' ;
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v_where: = v_where |' and eq_type2 = "' | : blk_criteria.eq_type2 | " ' ;
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SIM

SIM,

The procedure "blk_def_where" sets the block where clause by using the DEFAULT_WHERE or the ONETIME_WHERE constanct? Gets it to the user that the same results as the DEFAULT_WHERE sets the property WHERE permanently so the second time through, the 'v_where' is NOT null. Check your BLK_DEF_WHERE procedure and if it does not use the ONETIME_WHERE constanct, change isn't. The alternative would be to put DEFAULT_WHERE = NULL after the call to the built-in EXECUTE_QUERY.

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Hi all
I am trying to create a view, materialized with sysdate in where clause. This makes the complex query, and so I can't create a quick refreshment mview.
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I was wondering if someone can advise me, how can I accomplish this task, which would be really appreciated.
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create a materialized view PS_MEETING
build the DEFERRED payment
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as
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MEETING M
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the behavior is documented: http://docs.oracle.com/cd/E11882_01/server.112/e25554/basicmv.htm#DWHSG8201

General restrictions on update quickly
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Not able to add Where clause I last query

Dear Metallica

I created the report and last, I added where clause to find record use Serach point in the area of research, but it does not work

My Code

SELECT apex_item.checkbox (1, timesheet_id, 'UNCHECKED') tick, timesheet_id,
       pm.description project_description, pm.project_id, pm.NAME,
       tam.task_name, xxpria_vendor_name (resource_name) resource_name,
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       (planed_hour - tm.quantity) balance, tm.attribute2 remarks
  FROM timesheet_master tm, pa_task_mas tam, pa_projects_all pm
 WHERE tam.task_id = tm.task_number and 
       pm.project_id=tm.PROJECT_NUMBER      
AND tm.submitted_flag = 'Y'
   AND xx_resource_id (resource_name) =
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                      FROM pa_project_players
                     WHERE project_role_type LIKE 'TEAM MEMBER'
                       AND person_id = xx_resource_id (tm.resource_name)
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                       AND tm.submission_date BETWEEN start_date_active
                                                  AND NVL (end_date_active,
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                                                          ))
   AND tm.approved_flag = 'N'
   AND status = 'INPROCESS'
   AND pm.project_id IN (
          SELECT project_id
            FROM pa_project_players
           WHERE project_role_type = 'PROJECT LEADER'
             AND person_id = xx_resource_id (:app_user)
             AND tm.submission_date BETWEEN start_date_active
                                        AND NVL (end_date_active,
                                                 '01-APR-2040'
                                                ))
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       pm.description project_description, pm.project_id, pm.NAME,
       tam.task_name,
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       (planed_hour - tm.quantity) balance, tm.attribute2 remarks
  FROM timesheet_master tm, pa_task_mas tam, pa_projects_all pm
 WHERE tam.task_id = tm.task_number and 
       pm.project_id=tm.PROJECT_NUMBER
      AND tm.submitted_flag = 'Y'
   AND xx_resource_id (resource_name) =
          (SELECT DISTINCT person_id
                      FROM pa_project_players
                     WHERE project_role_type LIKE 'PROJECT LEADER'
                       AND person_id = xx_resource_id (tm.resource_name)
                       AND project_id = pm.project_id
                       AND tm.submission_date BETWEEN start_date_active
                                                  AND NVL (end_date_active,
                                                           '01-APR-2040'
                                                          ))
   AND tm.approved_flag = 'N'
   AND status = 'INPROCESS'
   AND pm.project_id IN (
          SELECT project_id
            FROM pa_project_players
           WHERE project_role_type = 'PROJECT MANAGER'
             AND person_id = xx_resource_id (:app_user)
             AND tm.submission_date BETWEEN start_date_active
                                        AND NVL (end_date_active,
                                                 '01-APR-2040'
                                                ))
UNION
SELECT apex_item.checkbox (1, timesheet_id, 'UNCHECKED') tick, timesheet_id,
       pm.description project_description, pm.project_id, pm.NAME,
       tam.task_name,
       xxpria_vendor_name (resource_name) resource_name,
       submission_date "Timesheet Date", quantity hours,
       (planed_hour - tm.quantity) balance, tm.attribute2 remarks
  FROM timesheet_master tm, pa_task_mas tam, pa_projects_all pm
 WHERE tam.task_id = tm.task_number and 
       pm.project_id=tm.PROJECT_NUMBER
      AND tm.submitted_flag = 'Y'
   AND xx_resource_id (resource_name) =
          (SELECT DISTINCT person_id
                      FROM pa_project_players
                     WHERE project_role_type LIKE 'PROJECT MANAGER'
                       AND person_id = xx_resource_id (tm.resource_name)
                       AND project_id = pm.project_id
                       AND tm.submission_date BETWEEN start_date_active
                                                  AND NVL (end_date_active,
                                                           '01-APR-2040'
                                                          ))
   AND tm.approved_flag = 'N'
   AND status = 'INPROCESS'
   AND pm.project_id IN (
          SELECT project_id
            FROM pa_project_players
           WHERE project_role_type = 'PRACTICE HEAD'
             AND person_id = xx_resource_id (:app_user)
             AND tm.submission_date BETWEEN start_date_active
                                        AND NVL (end_date_active,
                                                 '01-APR-2040'
                                                ))

where (nvl(:P75_RESOURCE_NAME,'0') = '0' or tm.resource_name=:P75_RESOURCE_NAME)

Below where conditon does not

where (nvl(:P75_RESOURCE_NAME,'0') = '0' or tm.resource_name=:P75_RESOURCE_NAME)

How to solve it.

Thank you

Try:

select * from
(
   <>
)
where nvl(:P75_RESOURCE_NAME,'0') = '0' or resource_name=:P75_RESOURCE_NAME

Logical OR (where clause) is not capable of change.

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