Best way to express Boolean values in a table?

Hello

I'm looking for the best way to express Boolean values in a table. Is there a better way than this one?

Men	Women	Children
Yes	Yes	NO.
NO.	Yes	NO.

Or I guess I could draw that checked sign for Yes and X sign for no.? Or is there anywhere I can download those?

Thank you!

That would you say a solid bullet for YES, hollow for no-much easier to see the difference at a glance.

Tags: InDesign

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Best way to store the values of the map

Hi all.
I have a card <>where I store the values (in this case, I store the IDs of rows in the table). I have an application with a panel tabs and I have a card for each tab. When the user exits the application, I'll go through the card and the identity of any process
If I use normal in my grain map, once the user changes tab (or opens a pop up or something like that), the map is instantiated again and all data is lost. To resolve this problem, I used a static map. Everything is ok, but if 2 users use the application at the same time, they will share the card data and I don't want that.
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Well, you can create a managed bean in this scope, or you can put your card directly at your fingertips.

Here you will find several techniques to get the bean managed in java code: http://www.lkakarla.com/2013/06/retrieving-managed-beans.html

Dario

Best way to select distinct values, based on another column?
I have a table with three columns: id (NUMBER), data_dt (DATE) and data_value (NUMBER).
There is a primary key id and data_dt.

I want to choose the folder with the last data_dt for each unique identification number.

What is the best way to do it?
I have three different methods, but there may be something that I am missing.

First of all:
```
SELECT *
FROM
(
  SELECT id, data_dt, data_value,
         FIRST_VALUE(data_dt)
         OVER (PARTITION BY id ORDER BY data_dt DESC) AS last_data_dt
  FROM the_table
)
WHERE data_dt = last_data_dt;
```
(I use ORDER BY... DESC, instead of just ORDER BY I don't need the clause BETWEEN the LINES)

Second:
```
SELECT t1.*
FROM the_table t1
JOIN
(
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  FROM the_table
  GROUP BY id
) t2 ON (t2.id = t1.id AND t2.data_dt = t1.data_dt);
```
Third:
```
SELECT t1.*
FROM the_table t1
WHERE t1.data_dt =
(
  SELECT MAX(t2.data_dt)
  FROM the_table t2
  WHERE t2.id = t1.id
);
```
-Don
As mentioned in hoek, you will need to test all scenarios.

However, in my opinion the more faster will be those who accesses the table that only ONCE instead of TWICE as some scenarios require.

HTH!

can I store the output of boolean values in a table?
the codification output here is '1' and '0'...
I want to store only '1' and '0' in a table...

but I can't do it please help me...

How to store?...

DECLARE
EID VARCHAR2 (20);
BOOLEAN BL: = TRUE;
BEGIN
SELECT EMP_NO
IN EID
OF LEAVE_FORM
WHERE EMP_NO = 1;
BL: = TRUE;
DBMS_OUTPUT. Put_line (sys. DIUTIL.bool_to_int (BL));
insert into t1 (BL) values; - error
EXCEPTION
When no_data_found then
BL: = FALSE;
DBMS_OUTPUT. Put_line (sys. DIUTIL.bool_to_int (BL));
END;

Published by: 794244 on February 9, 2011 03:11
No, you can't. BOOLEAN is no SQL, PL/SQL data type. You did not post structure of table t1. Assumimg t1 column has the number value, use:
```
DECLARE
    BL BOOLEAN := TRUE;
    N  NUMBER;
BEGIN
    N:= sys.DIUTIL.bool_to_int(BL);
    DBMS_OUTPUT.PUT_LINE(N);
    insert into t1 values(N);
    BL := FALSE;
    N:= sys.DIUTIL.bool_to_int(BL);
    DBMS_OUTPUT.PUT_LINE(N);
    insert into t1 values(N);
END;
/
select * from t1
/

        BL
----------
         1
         0

SQL>  
```
SY.

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sortProperty = "#{bindings." ABC.hints.Col1.name}.
filterable = "true" sortable = "true" >
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< f: facet = name 'filter' >
< af:panelGroupLayout id = "pgl2" halign = "center" >
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< / af:panelGroupLayout >
< / f: facet >
< / af:column >
I have to use < f: facet = 'filter' name > option to implement, but get the error below.
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Any help is appreciated.
Thank you
Luke.

You are welcome.

Can you close it please message by checking one of the answers as Correct?

Best way to reach the 2 columns of table A of the same column in the Table B?

Hello
It is a simplified example of the query, I am writing.
I have two tables - PIPELINE (which includes the CREDIT_RECEIVER and CREATOR columns) and EMPLOYEES (including E-MAIL and LOB columns).
I want to write a query that joins the PIPELINE. CREDIT_RECEIVER with EMPLOYEES. E-MAIL to return the LOB as 'CREDIT_RECEIVER_LOB '.
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Currently, I do a left outer join on EMPLOYEES. EMAIL = PIPELINE. CREDIT_RECEIVER to get the "CREDIT_RECEIVER_LOB" and by calling a function GET_LOB (PIPELINE. CREATOR) (as defined below) to get the "CREATOR_LOB".
Query:
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PIPELINE. CREDIT_RECEIVER as CREDIT_RECEIVER,
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PIPELINE
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Forrest
Definition of GET_LOB
create or replace function "GET_LOB"
()vemail in VARCHAR2()
return VARCHAR2
is
Start
DECLARE vlog VARCHAR2 (30) ;
BEGIN
SELECT LOB IN vlog DE EMPLOYEES OÙ E-mail = Vemail ;
return vlog ;
END ;
end ;

Select PIPELINE.ID as ID,

PIPELINE. CREDIT_RECEIVER as CREDIT_RECEIVER,

PIPELINE. CREATOR as a CREATOR,

E1. LOB as CREDIT_RECEIVER_LOB,

E2. LOB as CREATOR_LOB

PIPELINE

LEFT OUTER JOIN EMPLOYEES E1

WE PIPELINE. CREDIT_RECEIVER = EMPLOYEES. E-mail

LEFT OUTER JOIN EMPLOYEES E2

WE PIPELINE. CREATOR = EMPLOYEES. E-mail

----

Ramin Hashimzade

best way to avoid the full table scan for clause "column is zero.
I have a query with is control null, and because of that it performs a total scan of table (in millions of rows in the table)

SELECT id, x,
LAG (id) OVER (PARTITION BY userid ORDER BY has had place, id) as p_id,.
FROM MyTable
WHERE X is ZERO

What is the best way for me to avoid the full table scan. I have indexes for the X column and other columns.

Thank you
Hi Vasif

NULL values are indexed if the indexed entry also includes a value non-zero.

If you create an index such as:

CREATE INDEX mytable_x_idx ON mytable (x, ' ');

ensure all null values for the column X are indexed and will therefore potentially use the index to search for null values, assuming of course the result set is small enough to justify the use of the index in your query.

I have spoken previously on my blog:

http://richardfoote.WordPress.com/2008/01/23/indexing-nulls-empty-spaces/

See you soon

Richard Foote
http://richardfoote.WordPress.com/

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Muzz

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[8i] best way to replace the 'similar' value values...?

Some examples of data:

Sorry for the large / complex set of sample data, but there should be no need to go through it in detail =).

2 things to keep in mind:
(1) it is a 8i db
(2) I can't create any tables in the db, if I can create views

CREATE TABLE     ord_master
(     part_nbr          CHAR(25)
,     ord_nbr          CHAR(10)
,     sub_ord_nbr     CHAR(3)
,     ord_type          CHAR(2)
,     ord_stat          CHAR(2)
,     date_closed     DATE
);

-- please note, though none of the columns in ord_master are explicitly defined as NOT NULL, 
-- none of them are NULL in the db, and given how things are input into the table, I don't 
-- even think it's possible

-- a unique order is described by ord_nbr, sub_ord_nbr.  there should only be one record in
-- this table for a given unique combination of those columns, though they are not the p.k.

-- NOTE: dates default to 12/31/1900, so in the table above, if an order is still open (thus, 
-- not closed), it's date_closed will be 12/31/1900.  It will only change once the order closes.

INSERT INTO     ord_master
VALUES     ('ABC-123','1','1','AA','CL',TO_DATE('05/01/2009','mm/dd/yyyy'));
INSERT INTO     ord_master
VALUES     ('ABC-123','1','2','AA','CL',TO_DATE('9/14/2009','mm/dd/yyyy'));
INSERT INTO     ord_master
VALUES     ('ABC-123','2','1','AA','CL',TO_DATE('12/03/2009','mm/dd/yyyy'));
INSERT INTO     ord_master
VALUES     ('ABC-123','3','1','AA','OP',TO_DATE('12/31/1900','mm/dd/yyyy'));
INSERT INTO     ord_master
VALUES     ('ABC-123','4','1','AA','CL',TO_DATE('03/12/2004','mm/dd/yyyy'));
INSERT INTO     ord_master
VALUES     ('XYZ-123','5','1','AA','CL',TO_DATE('03/12/2004','mm/dd/yyyy'));


CREATE TABLE     op_detail
(     ord_nbr          CHAR(10)
,     sub_ord_nbr     CHAR(3)
,     major_seq_nbr     CHAR(4)
,     wctr_id          CHAR(5)
,     oper_stat          CHAR(2)
,     plan_su_rsrc     NUMBER(5,2)
,     plan_run_rsrc     NUMBER(11,8)
,     plan_subc_amt     NUMBER(15,5)
,     act_su_rsrc     NUMBER(5,2)
,     act_run_rsrc     NUMBER(7,2)
,     act_subc_amt     NUMBER(15,2)
,     act_start_dt     DATE
,     dt_completed     DATE
,     qty_planned     NUMBER(13,4)
,     qty_recvd          NUMBER(13,4)
,     qty_complete     NUMBER(13,4)
,     qty_scrap          NUMBER(13,4)
,     qty_on_hold     NUMBER(13,4)
);
          
-- similar to ord_master, thought none of the columns are explicitly defined as NOT NULL, 
-- none of the records have NULL values for any of these columns, and I don't think it's 
-- really possible with the way the system is

INSERT INTO     op_detail
VALUES     ('1', '1', '0081', 'X516 ', 'CP', 0, 0, 0, 0, .2, 0, TO_DATE('02/03/2010', 'mm/dd/yyyy'), TO_DATE('02/03/2010', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('1', '1', '0324', 'Y000 ', 'CP', .1, .2, 0, 0, .87, 0, TO_DATE('04/06/2010', 'mm/dd/yyyy'), TO_DATE('04/06/2010', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('1', '1', '0170', 'X928 ', 'CP', 0, 0, 9.6, 0, 0, 159, TO_DATE('03/05/2010', 'mm/dd/yyyy'), TO_DATE('03/05/2010', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('1', '1', '0130', 'H211 ', 'CP', .5, .1, 0, .08, .63, 0, TO_DATE('02/10/2010', 'mm/dd/yyyy'), TO_DATE('02/10/2010', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('1', '2', '0120', 'H214 ', 'CP', .3, .05, 0, 0, .68, 0, TO_DATE('05/22/2009', 'mm/dd/yyyy'), TO_DATE('05/22/2009', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('1', '2', '0122', 'T203 ', 'CP', 2.5, 1, 0, .67, .3, 0, TO_DATE('05/28/2009', 'mm/dd/yyyy'), TO_DATE('05/28/2009', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('1', '2', '0130', 'H211 ', 'CL', .5, .1, 0, .67, .3, 0, TO_DATE('05/28/2009', 'mm/dd/yyyy'), TO_DATE('05/28/2009', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('1', '2', '0170', 'X928 ', 'CP', 0, 0, 9.6, 0, 0, 153.12, TO_DATE('06/10/2009', 'mm/dd/yyyy'), TO_DATE('06/10/2009', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('1', '2', '0324', 'Y000 ', 'CP', .1, .2, 0, 0, .08, 0, TO_DATE('06/17/2009', 'mm/dd/yyyy'), TO_DATE('06/17/2009', 'mm/dd/yyyy'), 3, 3, 3, 0, 0);
INSERT INTO     op_detail
VALUES     ('2', '1', '0081', 'X516 ', 'CL', 0, 0, 0, 0, 0, 0, TO_DATE('07/20/2009', 'mm/dd/yyyy'), TO_DATE('07/20/2009', 'mm/dd/yyyy'), 4, 4, 4, 0, 0);
INSERT INTO     op_detail
VALUES     ('2', '1', '0324', 'Y000 ', 'CL', .1, .2, 0, 0, 3.03, 0, TO_DATE('09/11/2009', 'mm/dd/yyyy'), TO_DATE('09/11/2009', 'mm/dd/yyyy'), 4, 4, 4, 0, 0);
INSERT INTO     op_detail
VALUES     ('2', '1', '0170', 'X928 ', 'CP', 0, 0, 9.6, 0, 0, 204.16, TO_DATE('08/11/2009', 'mm/dd/yyyy'), TO_DATE('08/11/2009', 'mm/dd/yyyy'), 4, 4, 4, 0, 0);
INSERT INTO     op_detail
VALUES     ('2', '1', '0130', 'H211 ','CP', .5, .1, 0, 1.97, 2.67, 0, TO_DATE('07/28/2009', 'mm/dd/yyyy'), TO_DATE('07/29/2009', 'mm/dd/yyyy'), 4, 4, 4, 0, 0);
INSERT INTO     op_detail
VALUES     ('3', '1', '0170', 'X928 ', 'CP', 0, 0, 9.6, 0, 0, 255.2, TO_DATE('11/06/2009', 'mm/dd/yyyy'), TO_DATE('11/06/2009', 'mm/dd/yyyy'), 5, 5, 5, 0, 0);
INSERT INTO     op_detail
VALUES     ('3', '1', '0130', 'H212 ', 'CP', .5, .1, 0, .6, .03, 0, TO_DATE('10/21/2009', 'mm/dd/yyyy'), TO_DATE('10/21/2009', 'mm/dd/yyyy'), 5, 5, 5, 0, 0);
INSERT INTO     op_detail
VALUES     ('3', '1', '0550', 'R501 ', 'WK', 1, 16, 0, 2.2, 12.4, 0, TO_DATE('05/19/2010', 'mm/dd/yyyy'), TO_DATE('12/31/1900', 'mm/dd/yyyy'), 5, 5, 5, 0, 0);
INSERT INTO     op_detail
VALUES     ('3', '1', '0324', 'Y000 ', 'CL', .1, .2, 0, 0, .07, 0, TO_DATE('02/04/2010', 'mm/dd/yyyy'), TO_DATE('02/04/2010', 'mm/dd/yyyy'), 5, 5, 5, 0, 0);
INSERT INTO     op_detail
VALUES     ('4', '1', '0324', 'Y000 ', 'CP', .1, .2, 0, 0, .59, 0, TO_DATE('02/06/2004', 'mm/dd/yyyy'), TO_DATE('02/06/2004', 'mm/dd/yyyy'), 4, 4, 4, 0, 0);

This is the query, I'm working with right now:

SELECT     o.part_nbr               
,          s.major_seq_nbr          AS op_nbr
,          CASE          -- CASE statement to replace similar-to wctr_id's with a single new wctr_id, so we can treat them as the same
               WHEN     s.wctr_id     IN ('H211','H212')
               THEN     'Z211'
               ELSE     s.wctr_id
          END                         AS wctr
,          MIN(s.plan_su_rsrc)          AS min_plan_setup
,          AVG(s.plan_su_rsrc)          AS avg_plan_setup
,          MAX(s.plan_su_rsrc)          AS max_plan_setup
,          STDDEV(s.plan_su_rsrc)     AS sdev_plan_setup
,          MIN(s.plan_run_rsrc)     AS min_plan_run
,          AVG(s.plan_run_rsrc)     AS avg_plan_run
,          MAX(s.plan_run_rsrc)     AS max_plan_run
,          STDDEV(s.plan_run_rsrc)     AS sdev_plan_run
,          MIN(s.plan_subc_amt)     AS min_plan_subc
,          AVG(s.plan_subc_amt)     AS avg_plan_subc
,          MAX(s.plan_subc_amt)     AS max_plan_subc
,          STDDEV(s.plan_subc_amt)     AS sdev_plan_subc
,          MIN(s.act_su_rsrc)          AS min_act_setup
,          AVG(s.act_su_rsrc)          AS avg_act_setup
,          MAX(s.act_su_rsrc)          AS max_act_setup
,          STDDEV(s.act_su_rsrc)     AS sdev_act_setup
,          MIN(s.act_run_rsrc)          AS min_act_run
,          AVG(s.act_run_rsrc)          AS avg_act_run
,          MAX(s.act_run_rsrc)          AS max_act_run
,          STDDEV(s.act_run_rsrc)     AS sdev_act_run
,          MIN(s.act_subc_amt)          AS min_act_subc
,          AVG(s.act_subc_amt)          AS avg_act_subc
,          MAX(s.act_subc_amt)          AS max_act_subc
,          STDDEV(s.act_subc_amt)     AS sdev_act_subc     
,          MIN(s.act_start_dt)          AS min_start
,          MAX(s.act_start_dt)          AS max_start
,          MIN(s.dt_completed)          AS min_comp
,          MAX(s.dt_completed)          AS max_comp
,          MIN(s.qty_planned)          AS min_qty_plan
,          AVG(s.qty_planned)          AS avg_qty_plan
,          MAX(s.qty_planned)          AS max_qty_plan
,          STDDEV(s.qty_planned)     AS sdev_qty_plan
,          MIN(s.qty_recvd)          AS min_qty_recvd
,          AVG(s.qty_recvd)          AS avg_qty_recvd
,          MAX(s.qty_recvd)          AS max_qty_recvd
,          STDDEV(s.qty_recvd)          AS sdev_qty_recvd
,          MIN(s.qty_complete)          AS min_qty_comp
,          AVG(s.qty_complete)          AS avg_qty_comp
,          MAX(s.qty_complete)          AS max_qty_comp
,          STDDEV(s.qty_complete)     AS sdev_qty_comp
,          MIN(s.qty_scrap)          AS min_qty_scrap
,          AVG(s.qty_scrap)          AS avg_qty_scrap
,          MAX(s.qty_scrap)          AS max_qty_scrap
,          STDDEV(s.qty_scrap)          AS sdev_qty_scrap
,          MIN(s.qty_on_hold)          AS min_qty_hold
,          AVG(s.qty_on_hold)          AS avg_qty_hold
,          MAX(s.qty_on_hold)          AS max_qty_hold
,          STDDEV(s.qty_on_hold)     AS sdev_qty_hold
,          COUNT(*)                    AS rec_cnt
,          CASE
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-12)
               THEN     '12 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-24)
               THEN     '24 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-36)
               THEN     '36 mos. back'
               ELSE '37 mos. back +'
          END                         AS time_period
FROM          ord_master o
,          op_detail     s
,          (     -- begin in-line view a, to get the min act_start_dt for each order
          SELECT     s1.ord_nbr
          ,          s1.sub_ord_nbr
          ,          MIN     (
                         CASE
                              WHEN     s1.act_start_dt     > TO_DATE('01/01/2000','mm/dd/yyyy')
                              THEN     s1.act_start_dt
                         END
                         )          AS ord_min_start
          FROM          op_detail s1
          GROUP BY     s1.ord_nbr
          ,          s1.sub_ord_nbr
          ) a     -- end in-line view a          
WHERE     o.ord_nbr          = s.ord_nbr
AND          o.sub_ord_nbr     = s.sub_ord_nbr
AND          o.ord_nbr          = a.ord_nbr
AND          o.sub_ord_nbr     = a.sub_ord_nbr
AND          o.ord_type     = 'AA'
AND          o.ord_stat     IN ('CL','OP')
AND          s.oper_stat     IN ('CL','CP')
GROUP BY     o.part_nbr
,          s.major_seq_nbr
,          CASE          -- CASE statement to replace similar-to wctr_id's with a single new wctr_id, so we can treat them as the same
               WHEN     s.wctr_id     IN ('H211','H212')
               THEN     'Z211'
               ELSE     s.wctr_id
          END
,          CASE
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-12)
               THEN     '12 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-24)
               THEN     '24 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-36)
               THEN     '36 mos. back'
               ELSE '37 mos. back +'
          END
ORDER BY     o.part_nbr
,          CASE
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-12)
               THEN     '12 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-24)
               THEN     '24 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-36)
               THEN     '36 mos. back'
               ELSE '37 mos. back +'
          END
,          s.major_seq_nbr

It gives me a lot of descriptive statistics on data stored in the database, divided into groups of the time period.

I have 7 sets of possible values for the wctr_id column, which are groups of similar/identical positions and should be treated as the same, assuming that the ord_nbr, sub_ord_nbr and major_seq_nbr are the same. In my case statement example above, every time I find 'H211' or 'H212', I'm replacing it with "Z211', which is my new unique identifier for all wctr in the Group ("H211', "H212"). I have 7 of these kinds of groups that should be replaced by a new unique identifier. Is my statement CASE (above) the best way to do it, or is there a better way? These groups of similar-wctr_id are not listed in a table anywhere.

Hello

As always, thanks for posting the CREATE TABLE and INSERT statements. It is very useful and leads to the more quickly, better solutions.
Another thing that is useful and promotes better solutions, faster, is to simplify your problem.
For example, you need to calculate a large number of aggregates, but looks like you already know how to do this. This issue only affects the CASE expressions, and how they interact with the GROUP BY clause. So just cut most of the aggregate functions.
Also, it seems that the finer points of view one online have nothing to do with your current problem. For purposes of recognition of this problem, pretend that one is a regular display, so it does not clutter the main request.

I think your problem might be reformulated as follows:
You already have a query like this:

CREATE OR REPLACE VIEW a
AS
          SELECT     s1.ord_nbr
          ,          s1.sub_ord_nbr
          ,          MIN     (
                         CASE
                              WHEN     s1.act_start_dt     > TO_DATE('01/01/2000','mm/dd/yyyy')
                              THEN     s1.act_start_dt
                         END
                         )          AS ord_min_start
          FROM          op_detail s1
          GROUP BY     s1.ord_nbr
          ,          s1.sub_ord_nbr
;

SELECT     o.part_nbr
,          s.major_seq_nbr          AS op_nbr
,          CASE          -- CASE statement to replace similar-to wctr_id's with a single new wctr_id, so we can treat them as the same
               WHEN     s.wctr_id     IN ('H211','H212')
               THEN     'Z211'
               ELSE     s.wctr_id
          END                         AS wctr
,          MIN(s.plan_su_rsrc)          AS min_plan_setup
          -- lots of other agtgregates go here in real query
,          CASE
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-12)
               THEN     '12 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-24)
               THEN     '24 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-36)
               THEN     '36 mos. back'
               ELSE '37 mos. back +'
          END                         AS time_period
FROM          ord_master o
,          op_detail     s
,          a          -- in real query, a is an in-line view
WHERE     o.ord_nbr          = s.ord_nbr
AND          o.sub_ord_nbr     = s.sub_ord_nbr
AND          o.ord_nbr          = a.ord_nbr
AND          o.sub_ord_nbr     = a.sub_ord_nbr
AND          o.ord_type     = 'AA'
AND          o.ord_stat     IN ('CL','OP')
AND          s.oper_stat     IN ('CL','CP')
GROUP BY     o.part_nbr
,          s.major_seq_nbr
,          CASE          -- CASE statement to replace similar-to wctr_id's with a single new wctr_id, so we can treat them as the same
               WHEN     s.wctr_id     IN ('H211','H212')
               THEN     'Z211'
               ELSE     s.wctr_id
          END
,          CASE
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-12)
               THEN     '12 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-24)
               THEN     '24 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-36)
               THEN     '36 mos. back'
               ELSE '37 mos. back +'
          END
ORDER BY     o.part_nbr
,          CASE
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-12)
               THEN     '12 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-24)
               THEN     '24 mos. back'
               WHEN a.ord_min_start     >     ADD_MONTHS(SYSDATE,-36)
               THEN     '36 mos. back'
               ELSE '37 mos. back +'
          END
,          s.major_seq_nbr
;

which produces this output:

`                       MIN_
                       PLAN_
PART_NBR   OP_N WCTR   SETUP TIME_PERIOD
---------- ---- ----- ------ --------------
ABC-123    0081 X516      .0 12 mos. back
ABC-123    0130 Z211      .5 12 mos. back
ABC-123    0170 X928      .0 12 mos. back
ABC-123    0324 Y000      .1 12 mos. back
ABC-123    0120 H214      .3 24 mos. back
ABC-123    0122 T203     2.5 24 mos. back
ABC-123    0130 Z211      .5 24 mos. back
ABC-123    0170 X928      .0 24 mos. back
ABC-123    0324 Y000      .1 24 mos. back
ABC-123    0324 Y000      .1 37 mos. back +

The output is correct; the problem is, can we get the same results without 2 copies of the expression BOX wctr and 3 copies of the expression BOX time_period?
What is a good description of the problem?

To start, you can use aliases for columns in the ORDER BY clause. Unfortunately, it's the only place where you can use column aliases in the same query, where they are defined . You can calculate them in a query-sib and then use them in queries Super.
In other words, wouldn't be nice if we had a table just like op_detail, but with an extra column called wctr? Make a view: either a regular view (especially if wctr, calculated in the same way, to be used for several different queries) or view online, as shown below.
Wouldn't be great if there was a table that was like a, except that he had calculated alreay time_period? Make a view: either a regular view, or a view online, as shown below.

SELECT     o.part_nbr
,     s.major_seq_nbr          AS op_nbr
,     s.wctr
,     MIN(s.plan_su_rsrc)          AS min_plan_setup
     -- lots of other agtgregates go here in real query
,     a2.time_period
FROM     ord_master      o
,     (          -- Begin in-line view s, with data from op_detail
             SELECT  op_detail.*      -- or list all columns needed in main query
          ,     CASE          -- replace similar-to wctr_id's with a single new wctr_id, so we can treat them as the same
                   WHEN     wctr_id        IN ('H211','H212')
                   THEN     'Z211'
                   ELSE     wctr_id
               END                    AS wctr
          FROM     op_detail
     ) s          -- End in-line view s, with data from op_detail
,     (           -- Begin in-line view a2, to compute time_period
          SELECT  a.*
          ,     CASE
                   WHEN ord_min_start     >     ADD_MONTHS(SYSDATE,-12)
                       THEN     '12 mos. back'
                       WHEN ord_min_start     >     ADD_MONTHS(SYSDATE,-24)
                       THEN     '24 mos. back'
                       WHEN ord_min_start     >     ADD_MONTHS(SYSDATE,-36)
                       THEN     '36 mos. back'
                       ELSE '37 mos. back +'
               END                         AS time_period
          FROM     a          -- in real query, a is an in-line view
     ) a2          -- End in-line view a2, to compute time_period
WHERE     o.ord_nbr     = s.ord_nbr
AND     o.sub_ord_nbr     = s.sub_ord_nbr
AND     o.ord_nbr     = a2.ord_nbr
AND     o.sub_ord_nbr     = a2.sub_ord_nbr
AND     o.ord_type     = 'AA'
AND     o.ord_stat     IN ('CL','OP')
AND     s.oper_stat     IN ('CL','CP')
GROUP BY     o.part_nbr
,          s.major_seq_nbr
,          s.wctr
,          a2.time_period
ORDER BY     o.part_nbr
,          a2.time_period
,          s.major_seq_nbr
;

In your example, wctr is identical to wctr_id, except for two values. If it was more complicated (for example, if there is not only 2 values that must be mapped on 'Z211', but also 3 to did not amount to "Z987", and 1 which should be treated as "A012" and 5 who should appear as "A666" and...), then you pourriez encode this in an expression BOX humongeous (one nested expression BOX if it involves more than 128 branches) , but it actually belongs to a table, where you have the gross wctr_id (such as "H211") in a column and its equivalent correspondent (for example "Z211") in another. I know that you said that you cannot create new tables; I'm just pointing out that then you can tell people that won't let you create tables, it's a bad idea, likely to lead to errors and some time in the future.

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