sys_context and order by clause

Hi all

IM using Oracle 11 g R2.

Is it somehow possible to use the context variable (to store the column name) in the ORDER BY clause? My ultimate goal is to build by Order at run time, without using the concatenation.

for example, I created context as my_ctx for some pkg and its variable as v_ctx with a value defined as 'TABLE_NAME '.
So it is possible to use it as

Select * from all_tables
sys_context order ('my_ctx', 'v_ctx');

If not, does perform a work around?

Thank you
Vivek

Hi, Vivek,

Vivek says:
Hi all

IM using Oracle 11 g R2.

Is it somehow possible to use the context variable (to store the column name) in the ORDER BY clause? My ultimate goal is to build by Order at run time, without using the concatenation.

Of course, you can use SYS_CONTEXT in an ORDER BY clause, but it is unclear what you are trying to do, so I don't know if SYS_CONTEXT will help you.

for example, I created context as my_ctx for some pkg and its variable as v_ctx with a value defined as 'TABLE_NAME '.
So it is possible to use it as

Select * from all_tables
sys_context order ('my_ctx', 'v_ctx');

If not, does perform a work around?

Post a full test script Hat people can run to recreate the problem and test their ideas. Show the output you want from the parameters a data you give.

Consider using a CASE expression in the ORDER BY clause. You can use SYS_CONTEXT in the expression BOX, if you wish.

Tags: Database

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select * from (
select ci.name "Name",count(1) "Total"
         from tsgdw_task@awhsncp1 t, 
                tsgdw_operational_process@awhsncp1 op,
                tsgdw_support_group@awhsncp1 sg,
                tsgdw_person@awhsncp1 p,
                tsgdw_configuration_item@awhsncp1 ci
     where sg.SUPPORT_GROUP_SEQ_ID in (SELECT sg2.SUPPORT_GROUP_SEQ_ID  FROM   tsgdw_support_group@awhsncp1 sg2
                         start with sg2.SEARCH_CODE = 'DBNONEC' --p_target_name 
                         connect by prior sg2.SUPPORT_GROUP_SEQ_ID=sg2.PARENT_SUPPORT_GROUP_SEQ_ID)
       and t.task_seq_id = op.task_seq_id
       and sg.support_group_seq_id = op.support_group_seq_id
       and op.assigned_person_seq_id = p.person_seq_id            
       and t.task_type = 'Incident'
       and t.priority in ('0 - Immediate (2 hours)','1 - Critical (4 hours)','2 - Urgent (1 business day)','3 - Normal (3 business days)')
       and op.CLOSE_CONFIG_ITEM_SEQ_ID = ci.CONFIGURATION_ITEM_SEQ_ID
       --and OP.EST_ACTUAL_END_DATETIME between ??EMIP_BIND_START_DATE?? and ??EMIP_BIND_END_DATE??
       and OP.EST_ACTUAL_END_DATETIME between to_date('01-Apr-2012,00:00:00','DD-Mon-YYYY,HH24:MI:SS') and to_date('08-Apr-2012,23:59:59','DD-Mon-YYYY,HH24:MI:SS')
       group by ci.name
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where rownum <= 5;
*****Output*****
Name     Total
EWHEBIP1     6
EUEODSD1     2
EUEOLTP8     2
HOUORD22     2
GIBIX-EUEOLTP8     1
*******Query2********
select       ci.name "Current CI",
             t.priority "Priority",
             to_char(t.task_number) "Incident ID", 
             t.short_description "Description",
             to_char(OP.EST_ACTUAL_END_DATETIME,'DD-MON-YYYY,HH24:MI') "Deadline", 
             op.ACTUAL_DUR_HOURS_INTEGER "Acutal Dur Hrs",
             sg.name "Work Group Name"
         from tsgdw_task@awhsncp1 t, 
                tsgdw_operational_process@awhsncp1 op,
                tsgdw_support_group@awhsncp1 sg,
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       and op.assigned_person_seq_id = p.person_seq_id            
       and t.task_type = 'Incident'
       and op.CLOSE_CONFIG_ITEM_SEQ_ID = ci.CONFIGURATION_ITEM_SEQ_ID
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HOUORD22      2 - Urgent (1 business day)
HOUORD22                     2 - Urgent (1 business day)
EWHEBIP1                     3 - Normal (3 business days)
EWHEBIP1                     2 - Urgent (1 business day)
EWHEBIP1                     2 - Urgent (1 business day)
EWHEBIP1                     2 - Urgent (1 business day)
EWHEBIP1                     2 - Urgent (1 business day)
EWHEBIP1                     2 - Urgent (1 business day)
EUEOLTP8                     3 - Normal (3 business days)
EUEOLTP8                     2 - Urgent (1 business day)
EUEODSD1                     2 - Urgent (1 business day)
EUEODSD1                     3 - Normal (3 business days)
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    Maybe

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               tsgdw_support_group@awhsncp1 sg,
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                                            connect by prior sg2.SUPPORT_GROUP_SEQ_ID = sg2.PARENT_SUPPORT_GROUP_SEQ_ID
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           and t.task_seq_id = op.task_seq_id
           and sg.support_group_seq_id = op.support_group_seq_id
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-- @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
select ci.name "Current CI",
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                             from tsgdw_task@awhsncp1 t,
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                                  tsgdw_support_group@awhsncp1 sg,
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    No, when you way "ORDER BY x", the rows with values of x which come first, followed by the lines with higher values of x. lines having the same value of x will be together, in no particular order with respect to the other (unless there is an expression of failure later in the clause ORDER BY.
    This is exactly what happens when you say "ORDER BY NULL". NULL has the same value (in fact, the same lack of any value) on all lines, so all rows have the same value of x, and they will appear in no particular order.

    (d) If neither of the two, so what is the reason of ignorance?

  • any case when and the sql clause

    Hello:
    What follows is my sql clause:
    SELECT T.*, b.name
    OF dbtest1 t
    LEFT OUTER JOIN dbtest b ON t.NO = b.empno
    WHERE t.ChineseName like '% "| : ChineseName | ' %' AND b.name like "%" | : name | » %'
    ORDER BY t.ChineseName

    The main problem is that I want to check the b.name if it is null, it can be passed as function NVL, so I try using case when, but it does not work.
    When there are the b.name in where clause, the columns of result will not include data without b.name (or implies the b.name is NULL); And that
    the result data are not entirely accurate.
    is it possible to use the case when it is implemented in the following code snippet:

    -case when b.name is not NULL then b.name like "%" | : name | » %'
    Else b.name = NULL (b.name = b.name does not seem to work on the analysis of data zero)
    end

    Thank you very much.

    962769 wrote:
    The main problem is the table is the form of the cross, and the like clause will filter the
    data without a name. Basically, it should show the empty columns, however, it won't.
    so, when I test the sql code, I fhound Like "%" | b.Name | ' %' will not get the data when the original dbtest1 table data
    has no id corresponding to the BD test. It seems pointless to go the LEFT OUTER JOIN.

    Thank you

    WHERE t.ChineseName like '%'||:ChineseName||'%'
AND  (
        b.name like '%'||:name||'%'
       or b.empno is null
    )

  • SQL Load ORDER BY clause

    Does anyone know how or where to enter in the ORDER BY clause when you use a SQL data source in a load rule? I prefer to do the classification in the State of charge rather than create a view on the side of the DB for this if possible.

    According to the documentation "box of the SQL statement in Open SQL Data Sources dialog box provides Select, From, and where areas of text that helps you write SQL queries." You can specify multiple data sources, filter the display of folders and specify how the records displayed in the data editor Prep are classified and grouped. "but I have not found anywhere where you can order or group data. I don't need to be able to group data I want to just be able to control my data to make the most effective possible charging process.

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    We're currently on 11.1.1.3 Essbase and Oracle 11 g.

    Any help is greatly apprecied.

    Just nail it on your WHERE clause in the area WHERE the. I think that you can even stick the entire statement (under the keyword "SELECT") within the area of SELECTION.

  • Problem with order by clause

    Hai all,

    I have problem with order by clause,

    My query is

    "Select number from table1 order number CSA.

    and the output as

    1
    10
    12
    13
    15
    17
    19
    2
    20
    21
    22
    .
    ........

    But if we give the order that it should display below the only good?

    1
    2
    10
    12
    13
    15
    17
    19
    20
    21
    22 ........

    Help me please why it is not displayed as she. and how to make the statement to display as in the second case. Thanks in advance.

    Kind regards
    Uraja

    In your table, the column is VARCHAR2 data type.

    It is a string, even if it is to store numeric values, it will get condemn as strings

    Try the below

    select your_column from table1 order by to_number(your_column) asc

    Published by: JAC on November 19, 2012 16:35

  • order by clause union in date column

    Hi gems... good evening...

    Oracle version: 11.2.0.2 EL6 Linux server

    I have a query as below:

    Select col1, col2, col3 col4
    tab1, tab2, tab3
    where the conditions
    Union
    Select col1, col2, col3 col4
    tab1, tab2, tab3
    where the conditions
    Union
    Select col1, col2, col3 col4
    tab1, tab2, tab3
    where the conditions;

    Now the col4 is a date column, and I need to order by on that entire result sets. I know that I can do (order of col4) (order by 4) or at the end of all of the query.

    But the problem is that the output is coming to Mon-dd-yyyy (i.e. 31-Dec-2012).

    I want each output in the format dd/mm/yyyy, so I need to use the function to_char.

    But in this case, I can't use the order by clause, because in this case it's get organized by character IE by 1,2,3,4,5 like that.

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    Published by: gogol on 3 November 2012 08:05

    Maybe - when you order by date column, she did it with a date internal representation so on exit you can use any date format you think appropriate

    select distinct
       col1,col2,col3,col4
  from (select col1,col2,col3,col4
          from tab1,tab2,tab3
         where conditions_1
            or conditions_2
            or conditions_3
       )

    Concerning

    Etbin

  • Purpose of the ORDER BY clause in the analytic function Min Max

    I was always using analytical functions like Min Max without ORDER BY clause. But today I used with the ORDER BY clause. The results are very different. I would like to know the purpose of the ORDER BY clause in Min, Max and analogues of analytical functions.

    user10566312 wrote:
    I was always using analytical functions like Min Max without ORDER BY clause. But today I used with the ORDER BY clause. The results are very different. I would like to know the purpose of the ORDER BY clause in Min, Max and analogues of analytical functions.

    It is a good point that many developers are not so aware. As far as I understand it the way it works.

    Some analytical functions do not need an order by or windowing clause (SUM, COUNT, MIN, etc.). If there is no specified window, then the full score is the window.
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    Documentation: http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions001.htm

    windowing_clause
    ...
    You cannot specify this clause unless you specified the order_by_clause. Window limits defined by the clause RANGE you can not specify only a single expression to the > order_by_clause. Please refer to 'Restrictions on the ORDER BY Clause'.

    example of

    with testdata as (select 10 numval, level lv from dual connect by level < 10)
select lv, numval, sum(numval) over () sum1, sum(numval) over (order by lv) sum2
from testdata;

LV NUMVAL SUM1 SUM2
-- ------ ---- ----
 1     10   90   10
 2     10   90   20
 3     10   90   30
 4     10   90   40
 5     10   90   50
 6     10   90   60
 7     10   90   70
 8     10   90   80
 9     10   90   90

    Published by: Sven w. on 25 Sep 2012 16:57 - default behavior has been corrected. Thanks to Chris

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