Problem with IN/Decode combination

Hi,
Can we use DECODE function with a query in an IN operator???
e.g
select ename, sal
from emp
where job in
(decode(v_job, 'C', 'Clerk', 'S', '''Salesman'''||','||'''Systems Analyst'''||','||'''Software Engr'''));
Its not returning me the records in case of 'S'. What is wrong with this query?
Need urgent help.
Thanx in advance!
Zaaf

> But I still wonder what was wrong with the actual query.
Your where clause,
where job
in (decode(v_job, 'C', 'Clerk',
'S', '''Salesman'''||','||'''Systems Analyst'''||','||'''Software Engr'''));translates to:
where v_job='C' and job='Clerk'
or v_job='S' and job='*Salesman*,*Systems Analyst*,*Software Engr*'But I have replaced the apostrophes with asterisks to illustrate what you were trying to do.
In other words, you were looking for JOB equal to the following 44 characters, including the quotes and commas:
'Salesman','Systems Analyst','Software Engr'

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I've decided to ask this here, since I've been searching for a solution for 2 days now.
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sorry for my bad bad english ;)

The code segment...
if(aktion=="-")
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will always return false. You are comparing the object reference of aktion to "-". The code should read:
if(aktion.equals("-"))
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StringTokenizer st = new StringTokenizer(em,";");
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The reason why it works when you hard code the values is because the Java comiler will only keep one object for each String literal. Thus:
String aTest = "test";
aTest=="test"; // This will return true but
String aTest = getStringFromWhereElseThatIsTest();
aTest=="test"; // Will most likely return false
- Chris

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[IMG]http://img372.imageshack.us/img372/694/differencepg1.png[/IMG]
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[IMG]http://img241.imageshack.us/img241/1995/difference2zw5.png[/IMG]
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This is the same image converted to .png:
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Any ideas?

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and this is the whole program so that you can put it into an editor:
import TerminalIO.KeyboardReader;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/* PasswordDemo.java requires no other files. */
public class PasswordDemo extends JPanel
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private static String HELP = "help";
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JOptionPane.showMessageDialog(controllingFrame,
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passwordField.requestFocusInWindow();
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public static void main(String[] args) {
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Here is the following decode in an SQL statement.
SELECT
SUM(DECODE(V.LCL_ER_RECV_DT - ADD_MONTHS(V.IND_ER_PER_END_DT,3)) > 0) AND
((V.LCL_ER_RECV_DT - ADD_MONTHS(V.IND_ER_PER_END_DT,3)) <= 30),1,0)
FROM NCOER V, NCOER_IN_ERROR NIE, NCOER_ERROR NE, ALL_CMD_VIEW ACV
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and v.lcl_er_form_cd = '4'
and acv.cmd_cd = v.mil_cmd_asgn_cd
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I get the following error message ORA-00907 Missing right parenthesis
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in DECODE() you cannot include an operators such as the greater than, less than, and/or equal sign.
instead you can use the CASE...WHEN in the SELECT statement:
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WHERE V.MIL_CMD_ASGN_CD IN ('FC')
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   AND ((V.LCL_ER_RECV_DT - ADD_MONTHS(V.IND_ER_PER_END_DT,3)) > 0) AND((V.LCL_ER_RECV_DT - ADD_MONTHS(V.IND_ER_PER_END_DT,3)) <= 30)
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   AND V.IND_ER_PER_END_DT = NIE.IND_ER_PER_END_DT(+)
   AND V.LCL_ER_RECV_DT = NE.LCL_ER_RECV_DT(+)
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   AND V.IND_ER_PER_END_DT = NE.IND_ER_PER_END_DT(+)
   AND V.LCL_ER_RECV_DT = NE.LCL_ER_RECV_DT(+)note: untested.

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Here's MSIs technical support answer:
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Problem with "SELECT...FOR UPDATE OF..." and "POST command" combination

Problem with "SELECT...FOR UPDATE OF..." and "POST command" combination
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go_block('display_block') ;
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-- are inserted with value 10 in TABLE_B.COLUMN_1 will be fetched and shown here.
if user_choice = 'YES' then
commit ;
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There are two calling forms having following statements and it is going to call the above said called form.
CALLING FORM 1
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post;
call_form(form_child, no_activate) ;
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select column_1
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for update of column_1
where column_2 = 'X' ;
update table_a
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Statements in ON-INSERT trigger:
select column_1
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update table_a
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Kindly suggest us as to how to fix above problem. It will be much use, if you can send us the information regarding the behavior of Oracle Forms POST built-in also.
Our mail ID: [email protected]
Thanks a lot in advance.

You have several problems:
1. On-Insert will ONLY run if you have created a new record in a base-table block. If you haven't done that, then the POST command will not cause it to run.
2. Select for update without a "no wait" will lock records for the first form, but when the second form tries this, it will hit the ORA-00054 exception, and will NOT wait. The only way you could make it wait is to issue an UPDATE sql command, which is not such a good way to go.
All POST does is issues SQL insert or update commands for any changes the user has made to records in a form's base-table blocks, without following with a Commit command.
Also understand that Commit is the same as Commit_Form, and Rollback is the same as Clear_Form. You should read up on these in the Forms help topics.

Problem with DECODE block in WHERE clause

Hi,
I'm facing problem with DECODE statement. I just simulated my problem in the simple way as follows. If I execute this following query, I should get "hello", but I'm not getting anything (ZERO rows returned).
SELECT 'hello' FROM DUAL
WHERE 'sample1' in (DECODE(1, 1, '''sample1'', ''sample2'', ''sample3''',
2, '''sample4'', ''sample5'', ''sample6'''
I think some problem is there in my WHERE clause.
But When I'm exeucting the following query as a seperate query, then I'm getting the value of DECODE block properly, but didn;t understnad why its not returning the same way when I'm putting the same DECODE statement in WHERE clause.
SELECT DECODE(1, 1, '''sample1'', ''sample2'', ''sample3''',
2, '''sample4'', ''sample5'', ''sample6'''
FROM DUAL;
Please help me to get out of this problem. Thank you so much in advance.
Thanks,
Ramji.

The value returned by SELECT DECODE(1, 1, '''sample1'', ''sample2'', ''sample3''',2, '''sample4'', ''sample5'', ''sample6''') FROM DUAL;
'sample1', 'sample2', 'sample3' is a single string. Consider it x.
SELECT 'hello' FROM DUAL WHERE 'sample1' in ( DECODE(1, 1, '''sample1'', ''sample2'', ''sample3''',2, '''sample4'', ''sample5'', ''sample6'''));
is like SELECT 'hello' FROM DUAL WHERE 'sample1' in ('x');
or
SELECT 'hello' FROM DUAL WHERE 'sample1' in ('''sample1'', ''sample2'', ''sample3''') and not
SELECT 'hello' FROM DUAL WHERE 'sample1' in ('sample1', 'sample2', 'sample3');
For this same reason SELECT 'hello' FROM DUAL WHERE 'sample1' in (select '''sample1'', ''sample2'', ''sample3''' from dual);
also does'nt work.
Please use INSTR to find whether 'sample1' exists in the string 'sample1', 'sample2', 'sample3'.

Problem with IN/Decode combination

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