Use of decode/case statements

I am trying to use a decode or case statement to check for a particular field code of 'SIP' and if that is the value I only want half of the production figure used in the calculations for that field ('SIP').
The following code works well without the items commented out:
SELECT ALL
FINDER_WIS.PRODUCTION_HDR.END_TIME as prod_date,
'SCD' as district,
--decode(FINDER_WIS.FACILITY_FIELD_X.FIELD_CODE,'SIP',FINDER_WIS.PRODUCTION_DATA.VOLUME/2,FINDER_WIS.PRODUCTION_DATA) AS TEST_SIP,
/*case when FINDER_WIS.FACILITY_FIELD_X.FIELD_CODE = 'SIP'
     then FINDER_WIS.PRODUCTION_DATA.VOLUME/2
          else FINDER_WIS.PRODUCTION_DATA.VOLUME
end as fieldtest,*/
round(SUM(NVL(FINDER_WIS.PRODUCTION_DATA.VOLUME,0))) as total_oil,
ROUND(SUM(NVL(FINDER_WIS.PRODUCTION_DATA.VOLUME,0)) / TO_NUMBER(TO_CHAR(FINDER_WIS.PRODUCTION_HDR.END_TIME,'DD'))) AS BOPD
FROM FINDER_WIS.PRODUCTION_HDR,
FINDER_WIS.PRODUCTION_DATA,
FINDER_WIS.FACILITY,
FINDER_WIS.REPORTING_GROUP,
FINDER_WIS.REPORTING_GROUP_DETAIL,
FINDER_WIS.FACILITY_FIELD_X,
SELECT distinct FINDER_WIS.FACILITY.FACILITY_S
FROM FINDER_WIS.PRODUCTION_HDR,
FINDER_WIS.PRODUCTION_DATA,
FINDER_WIS.FACILITY,
FINDER_WIS.REPORTING_GROUP,
FINDER_WIS.REPORTING_GROUP_DETAIL
WHERE (FINDER_WIS.PRODUCTION_HDR.ACTIVITY_TYPE = 'ALLOCATED'
AND FINDER_WIS.PRODUCTION_HDR.TIME_PERIOD_TYPE = 'MONTH'
AND FINDER_WIS.PRODUCTION_HDR.STATE_TYPE = 'STANDARD'
AND FINDER_WIS.PRODUCTION_HDR.EXISTENCE_TYPE = 'ACTUAL'
AND FINDER_WIS.PRODUCTION_DATA.MATERIAL_TYPE='OIL'
and FINDER_WIS.REPORTING_GROUP.REPORTING_GROUP_TYPE = 'ASSET_TEAM'
AND FINDER_WIS.REPORTING_GROUP.REPORTING_GROUP_ID ='SCD'
and finder_wis.production_HDR.SOURCE = 'NEWWIS'
AND FINDER_WIS.PRODUCTION_HDR.START_TIME BETWEEN :startdate_var AND :enddate_var)
AND ((FINDER_WIS.PRODUCTION_DATA.PRODUCTION_HDR_S=FINDER_WIS.PRODUCTION_HDR.PRODUCTION_HDR_S)
and (FINDER_WIS.PRODUCTION_HDR.FACILITY_S = FINDER_WIS.FACILITY.FACILITY_S)
and (FINDER_WIS.PRODUCTION_HDR.START_TIME between FINDER_WIS.REPORTING_GROUP_DETAIL.start_time and nvl(FINDER_WIS.REPORTING_GROUP_DETAIL.end_time,'01-JAN-2010')
or FINDER_WIS.PRODUCTION_HDR.end_TIME between FINDER_WIS.REPORTING_GROUP_DETAIL.start_time and nvl(FINDER_WIS.REPORTING_GROUP_DETAIL.end_time,'01-JAN-2010'))
AND (FINDER_WIS.REPORTING_GROUP.REPORTING_GROUP_S = FINDER_WIS.REPORTING_GROUP_DETAIL.REPORTING_GROUP_S)
AND (FINDER_WIS.FACILITY.FACILITY_S = FINDER_WIS.REPORTING_GROUP_DETAIL.FACILITY_S)))T
WHERE (FINDER_WIS.PRODUCTION_HDR.ACTIVITY_TYPE = 'ALLOCATED'
AND FINDER_WIS.PRODUCTION_HDR.TIME_PERIOD_TYPE = 'MONTH'
AND FINDER_WIS.PRODUCTION_HDR.STATE_TYPE = 'STANDARD'
AND FINDER_WIS.PRODUCTION_HDR.EXISTENCE_TYPE = 'ACTUAL'
AND FINDER_WIS.PRODUCTION_DATA.MATERIAL_TYPE='OIL'
and FINDER_WIS.REPORTING_GROUP.REPORTING_GROUP_TYPE = 'ASSET_TEAM'
and finder_wis.production_HDR.SOURCE = 'NEWWIS'
AND FINDER_WIS.PRODUCTION_HDR.START_TIME BETWEEN :startdate_var AND :enddate_var)
AND ((FINDER_WIS.FACILITY.FACILITY_S = T.FACILITY_S)
AND (FINDER_WIS.PRODUCTION_DATA.PRODUCTION_HDR_S=FINDER_WIS.PRODUCTION_HDR.PRODUCTION_HDR_S)
AND FINDER_WIS.FACILITY_FIELD_X.UWI = FINDER_WIS.FACILITY.UWI
AND FINDER_WIS.FACILITY_FIELD_X.FIELD_CODE NOT IN ('MW','BRM','PLG','SIP')
and (FINDER_WIS.PRODUCTION_HDR.FACILITY_S = FINDER_WIS.FACILITY.FACILITY_S)
and (FINDER_WIS.PRODUCTION_HDR.START_TIME between FINDER_WIS.REPORTING_GROUP_DETAIL.start_time and nvl(FINDER_WIS.REPORTING_GROUP_DETAIL.end_time,'01-JAN-2010')
or FINDER_WIS.PRODUCTION_HDR.end_TIME between FINDER_WIS.REPORTING_GROUP_DETAIL.start_time and nvl(FINDER_WIS.REPORTING_GROUP_DETAIL.end_time,'01-JAN-2010'))
AND (FINDER_WIS.REPORTING_GROUP.REPORTING_GROUP_S = FINDER_WIS.REPORTING_GROUP_DETAIL.REPORTING_GROUP_S)
AND (FINDER_WIS.FACILITY.FACILITY_S = FINDER_WIS.REPORTING_GROUP_DETAIL.FACILITY_S))
GROUP BY FINDER_WIS.PRODUCTION_HDR.END_TIME
the results look like this but this is without the values for the 'SIP' field:
PROD_DATE     DISTRICT     TOTAL_OIL BOPD
31/10/2007     SCD     168009     5420
30/11/2007     SCD     167339     5578
31/12/2007     SCD     170277     5493
31/01/2008     SCD     173677     5602
29/02/2008     SCD     168498     5810
31/03/2008     SCD     172689     5571
30/04/2008     SCD     168180     5606
31/05/2008     SCD     165448     5337
30/06/2008     SCD     164631     5488
31/07/2008     SCD     170073     5486
31/08/2008     SCD     166520     5372
30/09/2008     SCD     160321     5344
When I try to add the decode or case statement, I get ORA-00979; not a Group By expression as the error.
Can anyone assist me with this please?
Thanks in advance

Hi and welcome to the forum.
Simply put the field names you use in your DECODE also in your GROUP BY and it should work:
simple example:
MHO%xe> with t as (
2 select 1 col1, 1 col2 from dual union all
3 select 1 col1, 1 col2 from dual union all
4 select 2 col1, 2 col2 from dual union all
5 select 3 col1, 3 col2 from dual union all
6 select 4 col1, 4 col2 from dual
7 )
8 select col1
9 ,      decode(col1, 1, col2*100, col2)
10 ,      sum(col2)
11 from   t
12 group by col1 -->> NO col2 here...
13 order by col1;
,      decode(col1, 1, col2*100, col2)
FOUT in regel 9:
.ORA-00979: not a GROUP BY expression
Verstreken: 00:00:05.78
MHO%xe> with t as (
2 select 1 col1, 1 col2 from dual union all
3 select 1 col1, 1 col2 from dual union all
4 select 2 col1, 2 col2 from dual union all
5 select 3 col1, 3 col2 from dual union all
6 select 4 col1, 4 col2 from dual
7 )
8 select col1
9 ,      decode(col1, 1, col2*100, col2)
10 ,      sum(col2)
11 from   t
12 group by col1, col2
13 order by col1;
      COL1 DECODE(COL1,1,COL2*100,COL2) SUM(COL2)
         1                          100          2
         2                            2          2
         3                            3          3
         4                            4          4

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Welcome to the forum!!
Please consider the following when you post a question. This would help us help you better
1. New features keep coming in every oracle version so please provide Your Oracle DB Version to get the best possible answer.
You can use the following query and do a copy past of the output.
select * from v$version 2. This forum has a very good Search Feature. Please use that before posting your question. Because for most of the questions
that are asked the answer is already there.
3. We dont know your DB structure or How your Data is. So you need to let us know. The best way would be to give some sample data like this.
I have the following table called sales
with sales
as
      select 1 sales_id, 1 prod_id, 1001 inv_num, 120 qty from dual
      union all
      select 2 sales_id, 1 prod_id, 1002 inv_num, 25 qty from dual
select *
from sales 4. Rather than telling what you want in words its more easier when you give your expected output.
For example in the above sales table, I want to know the total quantity and number of invoice for each product.
The output should look like this
Prod_id   sum_qty   count_inv
1         145       2 5. When ever you get an error message post the entire error message. With the Error Number, The message and the Line number.
6. Next thing is a very important thing to remember. Please post only well formatted code. Unformatted code is very hard to read.
Your code format gets lost when you post it in the Oracle Forum. So in order to preserve it you need to
use the {noformat}{noformat} tags.
The usage of the tag is like this.
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7. If you are posting a *Performance Related Question*. Please read
   {thread:id=501834} and {thread:id=863295}.
   Following those guide will be very helpful.
8. Please keep in mind that this is a public forum. Here No question is URGENT.
   So use of words like *URGENT* or *ASAP* (As Soon As Possible) are considered to be rude.

How do I use switch and case statements to fill more than one other field?

Hi all,
I'm new to the community.
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I can already do this with one field, but if I add a second target field under an existing case the text doesn't appear there when I make the selection from the dropdown.
Basically, I'm asking if I can do this:
switch
(sNewSel){
   case "1": // Selection 1    Row2.Field1
= "text for field 1";
    Row1.Field2 = "text for field 2";
    break;
etc.
It works if the "row1.field2" option isn't there, but not when it is present.
Any takers?

I'm not sure if I will be able to send you the form. There may be too much to redact.
Would this last bit of code in the cell affect anything?
if
(bEnableTextField)
{Row2.Field1.access
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Row2.Field1.caption.font.fill.color.value= "0,0,0"; // set caption to black
That is, do I also need to repeat the same thing for the second target cell (Row1.Field2)?
What would be possible hang ups that would prevent it from working correctly?
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By the way, I'm not sure if my other attachment posted. I am trying again.

Using case statement in OWB expression builder

Hi All,
We are using OWB version 10.2.0.1.0. While using the below case statement We are getting the validation message as 'The expression is not properly formed'.
Case statement used in expression builder:
case when (INGRP1.CHARGETYPE in ('O','F') or INGRP1.TARIFF_GROUP in ('SMSINT','MMSINT')or ( INGRP1.CALL_TYPE = '002' and INGRP1.TARIFF_GROUP = 'MTV'))
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(select call_zone_reltn_key from call_zone_reltn where
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               else substr( INGRP1.B_SUBNO,1)
               end,1,length(call_zone_cd))and rownum=1)
else -1
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Kindly help me out in fixing this error or suggest any alternate way to use the above query in OWB expression builder.
Thanks,
Kabilan

946887 wrote:
Hi All,
We are using OWB version 10.2.0.1.0. While using the below case statement We are getting the validation message as 'The expression is not properly formed'.
Did you try to deploy the mapping ? Some time the expression validator gives wrong error messege.
Try to deploy the mapping and see if you are still getting this issue
Case statement used in expression builder:
case when (INGRP1.CHARGETYPE in ('O','F') or INGRP1.TARIFF_GROUP in ('SMSINT','MMSINT')or ( INGRP1.CALL_TYPE = '002' and INGRP1.TARIFF_GROUP = 'MTV'))
then
(select call_zone_reltn_key from call_zone_reltn where
call_zone_cd=substr(case
               when substr( INGRP1.B_SUBNO,1,2)='00'
               then
               substr( INGRP1.B_SUBNO,3)
               else substr( INGRP1.B_SUBNO,1)
               end,1,length(call_zone_cd))and rownum=1)
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CASE STATEMENTS AND CASE EXPRESSIONS IN ORACLE9I PL/SQL

제품 : PL/SQL
작성날짜 : 2001-11-13
CASE STATEMENTS AND CASE EXPRESSIONS IN ORACLE9I PL/SQL
=======================================================
PURPOSE
아래의 자료는 Case 문에서 oracle 8.1.7과 Oracle 9i의 New Feature로 8.1.7에서는
sqlplus 에서만 가능했고, 9i 부터는 pl/sql 까지 가능하다.
Explanation
1. Oracle 8.1.7 Feature
Oracle 8.1.7 에서 Case 문은 Decode 문과 유사하지만, 기존의 decode 문을 쓰는 것보다
더 많은 확장성과 Logical Power와 좋은 성능을 제공한다. 주로 나이와 같이 category 별로
나눌때 주로 사용하고 Syntex는 아래와 같다.
CASE WHEN <cond1> THEN <v1> WHEN <cond2> THEN <v2> ... [ELSE <vn+1> ] END
각각의 WHEN...THEN 절의 argument 는 255 까지 가능하고 이 Limit를 해결하려면
Oracle 8i Reference를 참조하면 된다.
The maximum number of arguments in a CASE expression is 255, and each
WHEN ... THEN pair counts as two arguments. To avoid exceeding the limit of 128 choices,
you can nest CASE expressions. That is expr1 can itself be a CASE expression.
Case Example : 한 회사의 모든 종업원의 평균 봉급을 계산하는데 봉급이 $2000보다 작은경우
2000으로 계산을 하는 방법이 pl/sql을 대신하여 case function을 사용할 수 있다.
SELECT AVG(CASE when e.sal > 2000 THEN e.sal ELSE 2000 end) FROM emp e;
Case Example : 나이를 column으로 가지고 있는 customer table을 예로 들어보자.
SQL> SELECT
2 SUM(CASE WHEN age BETWEEN 70 AND 79 THEN 1 ELSE 0 END) as "70-79",
3 SUM(CASE WHEN age BETWEEN 80 AND 89 THEN 1 ELSE 0 END) as "80-89",
4 SUM(CASE WHEN age BETWEEN 90 AND 99 THEN 1 ELSE 0 END) as "90-99",
5 SUM(CASE WHEN age > 99 THEN 1 ELSE 0 END) as "100+"
6 FROM customer;
70-79 80-89 90-99 100+
4 2 3 1
1 SELECT
2 (CASE WHEN age BETWEEN 70 AND 79 THEN '70-79'
3 WHEN age BETWEEN 80 and 89 THEN '80-89'
4 WHEN age BETWEEN 90 and 99 THEN '90-99'
5 WHEN age > 99 THEN '100+' END) as age_group,
6 COUNT(*) as age_count
7 FROM customer
8 GROUP BY
9 (CASE WHEN age BETWEEN 70 AND 79 THEN '70-79'
10 WHEN age BETWEEN 80 and 89 THEN '80-89'
11 WHEN age BETWEEN 90 and 99 THEN '90-99'
12* WHEN age > 99 THEN '100+' END)
SQL> /
AGE_G AGE_COUNT
100+ 1
70-79 4
80-89 2
90-99 3
Example
2. Oracle 9i Feature
Oracle 9i부터는 pl/sql에서도 case문을 사용할 수 있으면 이것은
복잡한 if-else 구문을 없애고, C언어의 switch문과 같은 기능을 한다.
아래의 9i pl/sql Sample 및 제약 사항을 보면 아래와 같다.
Sample 1:
A simple example demonstrating the proper syntax for a case
statement
using a character variable as the selector. See the section entitled
'Restrictions' at the end of this article for details on which PLSQL
datatypes may appear as a selector in a case statement or
expression.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
declare
achar char(1) := '&achar';
begin
case achar
when 'A' then dbms_output.put_line('The description was Excellent');
when 'B' then dbms_output.put_line('The description was Very Good');
when 'C' then dbms_output.put_line('The description was Good');
when 'D' then dbms_output.put_line('The description was Fair');
when 'F' then dbms_output.put_line('The description was Poor');
else dbms_output.put_line('The description was No such Grade');
end case;
end;
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
Sample 2:
A simple example demonstrating the proper syntax for a case
expression
using a character variable as the selector. See the section entitled
'Restrictions' at the end of this article for details on which PLSQL
datatypes may appear as a selector in a case statement or
expression.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
declare
achar char(1) := '&achar';
description varchar2(20);
begin
description :=
case achar
when 'A' then 'Excellent'
when 'B' then 'Very Good'
when 'C' then 'Good'
when 'D' then 'Fair'
when 'F' then 'Poor'
else 'No such grade'
end;
dbms_output.put_line('The description was ' || description);
end;
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
NOTE: The above simple samples demonstrate two subtle differences in the
syntax
required for case statements and expressions.
1) A case STATEMENT is terminated using the 'end case' keywords; a
case
EXPRESSION is terminated using only the 'end' keyword.
2) Each item in a case STATEMENT consists of one or more
statements, each
terminated by a semicolon. Each item in a case expression
consists of
exactly one expression, not terminated by a semicolon.
Sample 3:
Sample 1 demonstrates a simple case statement in which the selector
is
compared for equality with each item in the case statement body.
PL/SQL
also provides a 'searched' case statement as an alternative; rather
than
providing a selector and a list of values, each item in the body of
the
case statement provides its own predicate. This predicate can be any
valid boolean expression, but only one case will be selected.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
declare
achar char(1) := '&achar';
begin
case
when achar = 'A' then dbms_output.put_line('The description was
Excellent');
when achar = 'B' then dbms_output.put_line('The description was Very
Good');
when achar = 'C' then dbms_output.put_line('The description was
Good');
when achar = 'D' then dbms_output.put_line('The description was
Fair');
when achar = 'F' then dbms_output.put_line('The description was
Poor');
else dbms_output.put_line('The description was No such Grade');
end case;
end;
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
Sample 4:
This sample demonstrates the proper syntax for a case expression of
the
type discussed in Sample 3 above.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
declare
achar char(1) := '&achar';
description varchar2(20);
begin
description :=
case
when achar = 'A' then 'Excellent'
when achar = 'B' then 'Very Good'
when achar = 'C' then 'Good'
when achar = 'D' then 'Fair'
when achar = 'F' then 'Poor'
else 'No such grade'
end;
dbms_output.put_line('The description was ' || description);
end;
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
Sample 5:
This sample demonstrates the use of nested case statements. It is
also
permissable to nest case expressions within a case statement (though
it
is not demonstrated here), but nesting of case statements within a
case
expression is not possible since statements do not return any value.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
declare
anum1 number := &anum1;
anum2 number := &anum2;
answer number;
begin
case anum1
when 1 then case anum2
when 1 then answer := 10;
when 2 then answer := 20;
when 3 then answer := 30;
else answer := 999;
end case;
when 2 then case anum2
when 1 then answer := 15;
when 2 then answer := 25;
when 3 then answer := 35;
else answer := 777;
end case;
else answer := 555;
end case;
dbms_output.put_line('The answer is ' || answer);
end;
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
Sample 6:
This sample demonstrates nesting of case expressions within another
case
expression. Note again the absence of semicolons to terminate both
the
nested case expression and the individual cases of those
expressions.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
declare
anum1 number := &anum1;
anum2 number := &anum2;
answer number;
begin
answer :=
case anum1
when 1 then case anum2
when 1 then 10
when 2 then 20
when 3 then 30
else 999
end
when 2 then case anum2
when 1 then 15
when 2 then 25
when 3 then 35
else 777
end
else 555
end;
dbms_output.put_line('The answer is ' || answer);
end;
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
Although PL/SQL anonymous blocks have been used in all of the examples
so far,
case statements and expressions can also be used in procedures,
functions, and
packages with no changes to the syntax.
The following samples are included for completeness and demonstrate the
use of
case statements and/or expressions in each of these scenarios.
Sample 7:
This sample demonstrates use of a case statement in a stored
procedure.
Note that this sample also demonstrates that it is possible for each
of
the items in the case body to consist of more than one statement.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
create or replace procedure testcasestmt ( anum IN number ) is
begin
case
when anum = 1 then dbms_output.put_line('The number was One');
dbms_output.put_line('In case 1');
when anum = 2 then dbms_output.put_line('The number was Two');
dbms_output.put_line('In case 2');
when anum = 3 then dbms_output.put_line('The number was Three');
dbms_output.put_line('In case 3');
when anum = 4 then dbms_output.put_line('The number was Four');
dbms_output.put_line('In case 4');
when anum = 5 then dbms_output.put_line('The number was Five');
dbms_output.put_line('In case 5');
else dbms_output.put_line('The description was Invalid input');
dbms_output.put_line('In the else case');
end case;
end;
exec testcasestmt(&anum);
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
Sample 8:
This sample demonstrates the use of a case statement in a stored
package.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
create or replace package testpkg2 is
procedure testcasestmt ( anum IN number );
function testcasestmt_f ( anum IN number ) return number;
end testpkg2;
create or replace package body testpkg2 is
procedure testcasestmt ( anum IN number ) is
begin
case
when anum = 1 then dbms_output.put_line('The number was One');
dbms_output.put_line('In case 1');
when anum = 2 then dbms_output.put_line('The number was Two');
dbms_output.put_line('In case 2');
when anum = 3 then dbms_output.put_line('The number was Three');
dbms_output.put_line('In case 3');
when anum = 4 then dbms_output.put_line('The number was Four');
dbms_output.put_line('In case 4');
when anum = 5 then dbms_output.put_line('The number was Five');
dbms_output.put_line('In case 5');
else dbms_output.put_line('The description was Invalid input');
dbms_output.put_line('In the else case');
end case;
end;
function testcasestmt_f ( anum IN number ) return number is
begin
case
when anum = 1 then dbms_output.put_line('The number was One');
dbms_output.put_line('In case 1');
when anum = 2 then dbms_output.put_line('The number was Two');
dbms_output.put_line('In case 2');
when anum = 3 then dbms_output.put_line('The number was Three');
dbms_output.put_line('In case 3');
when anum = 4 then dbms_output.put_line('The number was Four');
dbms_output.put_line('In case 4');
when anum = 5 then dbms_output.put_line('The number was Five');
dbms_output.put_line('In case 5');
else dbms_output.put_line('The description was Invalid input');
dbms_output.put_line('In the else case');
end case;
return anum;
end;
end testpkg2;
exec testpkg2.testcasestmt(&anum);
variable numout number
exec :numout := testpkg2.testcasestmt_f(&anum);
print numout
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
Sample 9:
This sample demonstrates the use of a case expression in a stored
package.
- - - - - - - - - - - - - - - - Code begins here - - - - - - - - - - - -
set serveroutput on
create or replace package testpkg is
procedure testcase ( anum IN number );
function testcase_f ( anum IN number ) return number;
end testpkg;
create or replace package body testpkg is
procedure testcase ( anum IN number ) is
anumber number := anum;
anothernum number;
begin
anothernum :=
case
when anumber = 1 then anumber + 1
when anumber = 2 then anumber + 2
when anumber = 3 then anumber + 3
when anumber = 4 then anumber + 4
when anumber = 5 then anumber + 5
else 999
end;
dbms_output.put_line('The number was ' || anothernum);
end;
function testcase_f ( anum IN number ) return number is
anumber number := anum;
anothernum number;
begin
anothernum :=
case
when anumber = 1 then anumber + 1
when anumber = 2 then anumber + 2
when anumber = 3 then anumber + 3
when anumber = 4 then anumber + 4
when anumber = 5 then anumber + 5
else 999
end;
dbms_output.put_line('The number was ' || anothernum);
return anothernum;
end;
end testpkg;
variable numout number
exec testpkg.testcase(&anum);
exec :numout := testpkg.testcase_f(&anum);
print numout
- - - - - - - - - - - - - - - - Code ends here - - - - - - - - - - - -
제약 사항
다음의 databasetype은 case 문에서 지원되지 않는다.
BLOB
BFILE
VARRAY
Nested Table
PL/SQL Record
PL/SQL Version 2 tables (index by tables)
Object type (user-defined type)
All of these types except for object types face a similar restriction
even for if statements (i.e. they cannot be compared for equality directly) so this is unlikely to change for these types. Lack of support for object types is simply an implementation restriction which may be relaxed in future releases.
Reference Ducumment
Oracle 8.1.7 Manual
NOTE:131557.1

I have done the following code but doesn't
like the statement of - "case(butNext)". What do you mean "doesn't like" -- did you get an error message?
I'm guessing it won't compile because you're trying to switch on a Button.
I tried something
like "g.fillOval(100,50,70,90, BorderLayout.NORTH)"...no that doesn't make sense. You only use BorderLayout.NORTH when you're adding components to a BorderLayout layout manager. An oval is not a component and fillOval isn't adding a component and Graphics is not a Panel or layout manager.
Would appreciate it if someone could tell me how to position
shapes using the graohic method. I think the problem is that you're confusing shapes with components.

Decode/Case in Where clause

Hello,
We are experiencing an issue with a Select statement that uses Decode in the Where clause. Specifically, it seems to be ignoring a nested Decode and just returning the default value. We have another nested decode that works fine, though.
A member of our team mentioned that he believed there was an issue with using Decode and Case statements inside of a where clause within HTML DB...Is this correct? If it is, is there a workaround? Since the nested Decode works elsewhere in this statement, that doesn't seem right.
My select statement looks like:
SELECT
   SUBSTR(OBOB.OBOB_CNAME, 0, 30) d,
   OBOB.OBOB_UID r
FROM
   ISR_OBOB_OBJECT OBOB,
   ISR_OBAF_OBJECT_AFFILIATION OBAF,
   ISR.ISR_OBSD_SDR OBSD
WHERE
   OBOB.OBOB_UID = OBSD.OBOB_UID AND
   OBOB.OBOB_UID = OBAF.OBOB_B_UID AND
/*If Personal radio button is selected, displays all SDRs associated with user.
If All is selected, displays all SDRs associated with IS group selected from drop down list
      or every SDR.
   OBAF.OBOB_A_UID = DECODE(:P1_DISPLAY_ALL,
                                   'Personal', :F101_APP_USER_UID,
/*This is the decode statement that it seems to ignore. If ALL is selected, the query should see if a group has
    has been selected from a drop down list that appears when the ALL button is chosen. If a group is selected
    (the item isn't 0), only SDRs for that group should be shown. Otherwise, all SDRs for every group should display.
                                   'ALL', DECODE(:P1_SEARCH_IS_SUPPORT_GROUP, 0, OBAF.OBOB_A_UID, :P1_SEARCH_IS_SUPPORT_GROUP),
                                   OBAF.OBOB_A_UID) AND
/*If Personal radio button is selected, display SDRs where user is the Primary assignee.
   OBAF.OBAT_UID = DECODE(:P1_DISPLAY_ALL, 'Personal', (select OBAT_UID from ISR_OBAT_OBJ_AFFIL_TYPE WHERE OBAT_APP_REF = 'SDR_PRIMARY'), OBAF.OBAT_UID) AND
/*If a SDR Status (open, completed, on hold, not started...) is selected, only display the SDRs with that status.
   OBSD.KTTR_STATUS_UID = DECODE(:P1_ISR_STATUS_UID, 0, OBSD.KTTR_STATUS_UID, :P1_ISR_STATUS_UID) AND
/*If SDR_History textbox is Null, or Open, Not Started, or On Hold SDR status has been selected, then all SDRs with
    a create date between today and 99999 months ago will display. Otherwise, only SDRs with a create date between
    today and however many months are in the textbox will display (i.e. Completed SDRs created in the past 6 months.)
   MONTHS_BETWEEN(sysdate, OBSD.OBSD_CREATE_DATE) <= DECODE(:P1_SDR_HISTORY, NULL, 99999, DECODE(:P1_ISR_STATUS_UID,
                                                          (select KTTR_UID from ISR_KTTR_TRANSLATION where KTTR_APP_REF = 'SD_STAT_OPEN'), 99999,
                                                          (select KTTR_UID from ISR_KTTR_TRANSLATION where KTTR_APP_REF = 'SD_STAT_NOT_STA'), 99999,
                                                          (select KTTR_UID from ISR_KTTR_TRANSLATION where KTTR_APP_REF = 'SD_STAT_HOLD'), 99999,
                                                          :P1_SDR_HISTORY))
/*Alphabetical order
Order by
   dWe originally wrote this as a PL/SQL statement that returned a query string since most of the where clause is dependent on items the user may or may not select, but we have moved the query into a multiselect list, which only seems to allow SQL Queries.
Any help or advice would be appreciated.
Thanks,
Scott

Scott: Did you try running that SQL statement in SQL Workshop in Apex? You can run it as it is, it will popup a window asking you to enter values for the bind variables.
JAC73: I don't think an IN clause doesn't work that way, you need a actual SQL sub-query, not an expression from a DECODE/CASE statement. Search this site for str2tbl and see Tom's excellent discussion at
http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:110612348061

Case statement in order by clause

Hi,
I have written the below query which is having CASE statement in ORDER BY clause. Please let me know what mistake i have done in the query because am getting "Missing Keyword" Error.
SELECT opn_quest_id, seq_nbr
FROM opinion_question
order by case when :p=1 then
opn_quest_id,seq_nbr
else
opn_quest_id
end;
Thanks,
Santhosh.S

Try Ignore the following solution.
SELECT   opn_quest_id, seq_nbr
FROM   opinion_question
ORDER BY   CASE
WHEN : p = 1 THEN opn_quest_id || seq_nbr
ELSE opn_quest_id
END;
What are the data type of the corresponding columns used in the CASE Statement? I have assumed it to be strings.
!http://www.mysmiley.net/imgs/smile/sad/sad0049.gif! My Apologies....
Regards,
Jo
Edited by: Joice John on Jul 13, 2009 3:07 AM
Wrong Solution. Corrected by Sven.

Problem to identify values in a case statement.

Hi Friends,
Total number of records in my report should be divided by 5 and to be alloted into 5 grades in Grade column.
This is what I have done so far in my report with following layout.
S.No - Col A - Col B - Col C - Grade ( Colums A,B,C will be hidden in Report)
*****Column C will have only 5 values at max ( 0.0, 0.2, 0.4, 0.6, 0.8).The below example is for 6 records in a report.The same will be applied for 7,8,9,10 records.
In column A: MAX(cast(RCOUNT(1) AS DOUBLE))/5 ( Ex : 6/5 = 1.2)
In Column B: Truncate(MAX(cast (RCOUNT(1) as double)/5), 0) ( Ex : 6/5 = 1.0)
In Column C: Col A- Col B ( EX:1.2 - 1.0 =0.2)
(MAX(cast(RCOUNT(1) AS DOUBLE))/5 - Truncate(MAX(cast (RCOUNT(1) as double)/5), 0))
Now In Grade coulum I want to use this column C to Grade the records with case statements in it.
I am trying to use the following case statement for Grade Coulmn
Case
when (MAX(cast(RCOUNT(1) AS DOUBLE))/5 - Truncate(MAX(cast (RCOUNT(1) as double)/5), 0)) = 0.0 then .........
when (MAX(cast(RCOUNT(1) AS DOUBLE))/5 - Truncate(MAX(cast (RCOUNT(1) as double)/5), 0)) = 0.2 then .............
when (MAX(cast(RCOUNT(1) AS DOUBLE))/5 - Truncate(MAX(cast (RCOUNT(1) as double)/5), 0)) = 0.4 then .............
when (MAX(cast(RCOUNT(1) AS DOUBLE))/5 - Truncate(MAX(cast (RCOUNT(1) as double)/5), 0)) = 0.6 then ........
when (MAX(cast(RCOUNT(1) AS DOUBLE))/5 - Truncate(MAX(cast (RCOUNT(1) as double)/5), 0)) = 0.8 then .....
end
Case statement works gud for 0.0 but not for other 4 values.
It is unable to identify other 4values.
Please tell me, how can I make case statement work for all values in above scenario.
Thanks in Advance,
Varsha.
Edited by: Varsha on Nov 28, 2010 6:23 PM

In column A: MAX(cast(RCOUNT(1) AS DOUBLE))/5 ( Ex : 6/5 = 1.2)
In Column B: Truncate(MAX(cast (RCOUNT(1) as double)/5), 0) ( Ex : 6/5 = 1.0)
In Column C: Col A- Col B ( EX:1.2 - 1.0 =0.2)
(MAX(cast(RCOUNT(1) AS DOUBLE))/5 - Truncate(MAX(cast (RCOUNT(1) as double)/5), 0))Change the formula a bit by adding the by dim value for the MAX column.
Column A: MAX(cast(RCOUNT(1) AS DOUBLE) by DimTable.Column)/5
Column B: Truncate(MAX(cast (RCOUNT(1) as double) by DimTable.Column)/5, 0)
Column C: MAX(cast(RCOUNT(1) AS DOUBLE) by DimTable.Column)/5 - Truncate(MAX(cast (RCOUNT(1) as double) by DimTable.Column)/5, 0)
now write a case statement on top column c, based on your logic every 5th record will have a value 0.0
Note: Dimtable.column is the table.column for which the row count is taken.
Thanks,
Vino

Case statement not working in rpd

Hi Gurus,
I am giving case statement for the exchange rate column#1 from original exchange rate column , the data of column is like
0.0
0.0
0.1
0.2
1.2
1.3
1.4
so here i dont want 0.0 instead of that i want 1.0 so whenever in next derived column i will calculate it would be this derived exchange rate#1 * inv amt = desired amt
for the same I used different diff. case statement but still 0.0 is not going , I am giving like
1) CASE WHEN BookingsBacklog."Fact USJ Sales Billing"."Loc Exchange Rate" = 0.0 THEN BookingsBacklog."Fact USJ Sales Billing"."Loc Exchange Rate" * 1.0 ELSE BookingsBacklog."Fact USJ Sales Billing"."Loc Exchange Rate" END
2) CASE WHEN BookingsBacklog."Fact USJ Sales Billing"."Loc Exchange Rate" = 0.0 THEN 1.0 ELSE BookingsBacklog."Fact USJ Sales Billing"."Loc Exchange Rate" END
nothing is working , result remains same, any quick help would be apprciated
Thanks,

Once again, could you write all information, like I described here my example.
When tried the same it works.
TABLE.COLUMN1 is from dimension.
TABLE.COLUMN1 is DOUBLE in the physical layer (in Oracle it is NUMBER(8,2)) and view/data gives:
TABLE.COLUMN1
12.99
0.00
0.20
In the RPD I made new logical columns.
EXPR:
CASE WHEN "Presentation area".TABLE.COLUMN1 = 0.0 THEN 1.0 ELSE "Presentation area".TABLE.COLUMN1 END
EXPR2:
CASE WHEN "Presentation area".TABLE.COLUMN1 = 0 THEN 1 ELSE "Presentation area".TABLE.COLUMN1 END
Test in Answers:
COLUMN1----EXPR----EXPR2
12.99---------12.99----12.99
0.00-------------1.0--------1.0
0.20------------0.20------0.20
I leaved data format on the column properties as default (override default data format not checked).
I don't see where is the problem.
Regards
Goran
http://108obiee.blogspot.com

Which is Faster among DECODE & CASE Statment.

Can you please explain me the reason behind the fastest among DECODE & CASE statement?

user13483989 wrote:
Decode is have better performance.Because it is Oracle Inbuilt Function.So no neet to Specify Paraameters,It already contain Parameter.
So Performance is good With decode.Please prove it with evidence, rather than just making supposed factual statements.
From my tests, there's no clear difference one way or the other...
SQL> ed
Wrote file afiedt.buf
1 declare
2    v_dummy      number;
3    v_timestamp timestamp;
4    v_timestamp2 timestamp;
5 begin
6    v_timestamp := CURRENT_TIMESTAMP;
7    dbms_output.put_line(v_timestamp);
8    -- Test DECODE
9    select count(*)
10    into   v_dummy
11    from   (select rownum rn from dual connect by rownum <= 1000000)
12    where decode(mod(rn,19),0,1,0) = 1;
13    v_timestamp2 := CURRENT_TIMESTAMP;
14    dbms_output.put_line(v_timestamp2);
15    dbms_output.put_line('Decode Time Taken: '||(v_timestamp2 - v_timestamp) DAY TO SECOND);
16    v_timestamp := CURRENT_TIMESTAMP;
17    dbms_output.put_line(v_timestamp);
18    -- Test CASE
19    select count(*)
20    into   v_dummy
21    from   (select rownum rn from dual connect by rownum <= 1000000)
22    where case when mod(rn,19) = 0 then 1 else 0 end = 1;
23    v_timestamp2 := CURRENT_TIMESTAMP;
24    dbms_output.put_line(v_timestamp2);
25    dbms_output.put_line('Case Time Taken:   '||(v_timestamp2 - v_timestamp) DAY TO SECOND);
26* end;
SQL> /
18-JAN-11 12.01.58.856000
18-JAN-11 12.02.00.653000
Decode Time Taken: +000000000 00:00:01.797000000
18-JAN-11 12.02.00.653000
18-JAN-11 12.02.02.309000
Case Time Taken:   +000000000 00:00:01.656000000
PL/SQL procedure successfully completed.
SQL> /
18-JAN-11 12.02.03.668000
18-JAN-11 12.02.05.403000
Decode Time Taken: +000000000 00:00:01.735000000
18-JAN-11 12.02.05.403000
18-JAN-11 12.02.07.152000
Case Time Taken:   +000000000 00:00:01.749000000
PL/SQL procedure successfully completed.
SQL> /
18-JAN-11 12.02.07.871000
18-JAN-11 12.02.09.777000
Decode Time Taken: +000000000 00:00:01.906000000
18-JAN-11 12.02.09.777000
18-JAN-11 12.02.11.684000
Case Time Taken:   +000000000 00:00:01.907000000
PL/SQL procedure successfully completed.
SQL> /
18-JAN-11 12.02.15.324000
18-JAN-11 12.02.17.090000
Decode Time Taken: +000000000 00:00:01.766000000
18-JAN-11 12.02.17.090000
18-JAN-11 12.02.18.855000
Case Time Taken:   +000000000 00:00:01.765000000
PL/SQL procedure successfully completed.
SQL>

Use of decode/case statements

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