Several FKs to the same table

Hello,
I have a master table with several Forign Keys all of them to the same table. In order to display a column from the lookup table I'm using a select like:
select     m.code,
     m.lcode1, f1.label,
     m.lcode2, f2.label,
     m.lcode6, f6.label
from      MTABLE m,
     FTABLE f1,
     FTABLE f2,
     FTABLE f6
Where      m.lcode1 = f1.code and
     m.lcode2 = f1.code and
     m.lcode6 = f6.codeIs this the correct and optimal way of doing it?
Thanks for the help,
Arie.

Arie,
It sounds like perhaps the best way might be to create your forms/reports based upon a view instead of the underlying tables (especially if you are running 10gR1 or 10gR2).
I say this because:
1. With 10g (maybe even back in 9i?), you can create INSTEAD_OF triggers, so instead of manipulating (insert, update or delete) the view, the trigger has the code to perform the action to the underlying base tables instead.
2. This makes development easier, since all your joins are pre-defined in one place instead of re-creating them in numerous places.
3. Grants can be issued to the views, instead of the various tables, with just select privs to the lookup tables.
4. Change your join conditions to use the JOIN syntax, LEFT OUTER JOIN, etc., whatever is appropriate for your query. It's much easier to (eventually) figure out and maintain when you have multiple join conditions (especially against multiple tables), when any or all of them could null.
For details on the JOIN syntax or the INSTEAD_OF triggers, try the on-line Oracle documentation (I'm at home today and don't have all my reference material handy).
I'm using the above with great success (so far). I'm swamped with different work projects and different bosses and different priorities, so anything that makes my life easier is worth a couple hours of research, even if I have to do it from home in my off-time (if I can fit it into my schedule). I've been working on an HTMLDB (AppEx) application for over a year now, but I've probably only spent about 40-60 hours actually working on it, so I'm always forgetting most of what I've previously learned and done.
Bill Ferguson

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Compare several records in the same table

Hello, i´m writing a BAT file so i can export some information that i query.
I have a automatic integration that from time to time checks if there is any new client´s and generates a trigger.
If an error ocurs i it will repeat the process until the client is in the database.
I cannot create tables or modify structure.
My problem is that i need to compare the most updated record with the field CLIENT_ID
Let me give up an example:
Table A
CLIENT_ID CREATEDTIME ERROR_MESSAGE
0 01-01-2009 Sucess
1 01-01-2009 Error
2 01-01-2009 Sucess
1 02-01-2009 Sucess
3 02-01-2009 Sucess
4 02-01-2009 Error
I need to compare client "1" created on 01-01-2009 that gived Error with all new records to see if is Sucess and my
query should only return the client_ID "4" and export with sqlplus
Could you please help me out?

with my_tab as (select 0 client_id, to_date('01/01/2009', 'dd/mm/yyyy') createdtime, 'Sucess' error_message from dual union all
                select 1 client_id, to_date('01/01/2009', 'dd/mm/yyyy') createdtime, 'Error' error_message from dual union all
                select 2 client_id, to_date('01/01/2009', 'dd/mm/yyyy') createdtime, 'Sucess' error_message from dual union all
                select 1 client_id, to_date('02/01/2009', 'dd/mm/yyyy') createdtime, 'Sucess' error_message from dual union all
                select 3 client_id, to_date('02/01/2009', 'dd/mm/yyyy') createdtime, 'Sucess' error_message from dual union all
                select 4 client_id, to_date('02/01/2009', 'dd/mm/yyyy') createdtime, 'Error' error_message from dual)
-- end of test data set up to mimic a table called "my_tab"
select client_id
from   my_tab
group by client_id
having max(decode(error_message, 'Error', 1, 2)) = 1;should do what you want.
Edited by: Boneist on 05-Jan-2009 16:06
Hmm, not quite.... thinking of an amendment if the answer to BluShadow's question is Yes
Aha,
with my_tab as (select 0 client_id, to_date('01/01/2009', 'dd/mm/yyyy') createdtime, 'Sucess' error_message from dual union all
                select 1 client_id, to_date('01/01/2009', 'dd/mm/yyyy') createdtime, 'Error' error_message from dual union all
                select 2 client_id, to_date('01/01/2009', 'dd/mm/yyyy') createdtime, 'Sucess' error_message from dual union all
                select 1 client_id, to_date('02/01/2009', 'dd/mm/yyyy') createdtime, 'Sucess' error_message from dual union all
                select 3 client_id, to_date('02/01/2009', 'dd/mm/yyyy') createdtime, 'Sucess' error_message from dual union all
                select 4 client_id, to_date('02/01/2009', 'dd/mm/yyyy') createdtime, 'Error' error_message from dual union all
                select 1 client_id, to_date('03/01/2009', 'dd/mm/yyyy') createdtime, 'Error' error_message from dual)
-- end of test data set up to mimic a table called "my_tab"
select client_id
from   my_tab
group by client_id
having max(decode(error_message, 'Error', 1, 2)) keep (dense_rank last order by createdtime) = 1;(which happens to be a more generalised form of what Frank's posted below!)

Several chain steps loaing the same table

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hi,
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Hey!
I need dates of different work phases, in order to calculate the duration of each phase separately in SAP-Query. The dates are situated in the same tables and fields (f.ex. actual start dates of work phase 1, phase 2, phase 3, etc. are all located in table AFVV and field ISDD). But I need them separately. So is the only option to create separate fields for the dates of each work phase?
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Hi
SDN is itself a one-point source for anything related to SAP. (You can check eLearning etc for the same)
But still, here is one for you to start learning ABAP [http://abap-gallery.blogspot.com/2007/07/step-by-step-learning-abap.html|http://abap-gallery.blogspot.com/2007/07/step-by-step-learning-abap.html]
Regards
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Message was edited by: unusedusername
Message was edited by: unusedusername

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Sameer.

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Selecting specific records out of the same table with PICS

Post Author: nambi
CA Forum: Formula
I have a Database table in which we have information for our paint codes,
This database when accessed through our will display the types of tests we do for the products we manufacture, we manually enter in these results through the software. When I open up this same table in access I noticed that each test we do is displayed as new entry under the same product, therefore I have several entries for the same product code, and since we have several tests for each I am unable to specifically pull out the data I need.
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Hi all,
I have an issue with the tables having a CLOB datatype field.
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LANGUAGECODE N VARCHAR(8)
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[POL-2403] value too large for column
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MAX(LENGTH(NBC_PROVIDERCODE))
162
Choosing one random record, this is the stored information.
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LENGTH(NBC_PROVIDERCODE) | TEXT
-------------------------+-----------
52 | poucos me
SQL> select nbc_providerCode from od_stock_nbcst_notes where length(nbc_providerCode)=52;
[POL-2403] value too large for column
SQL> select substr(nbc_providercode,1,40) from od_stock_nbcst_notes where length(nbc_providercode)=52 ;
SUBSTR(NBC_PROVIDERCODE
Aproveite e deixe o seu carro no parque
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939569 wrote:
Hello,
I am using Oracle 11.2, I would like to use SQL to update one column based on values of other rows at the same table. Here are the details:
create table TB_test (myId number(4), crtTs date, updTs date);
insert into tb_test(1, to_date('20110101', 'yyyymmdd'), null);
insert into tb_test(1, to_date('20110201', 'yyyymmdd'), null);
insert into tb_test(1, to_date('20110301', 'yyyymmdd'), null);
insert into tb_test(2, to_date('20110901', 'yyyymmdd'), null);
insert into tb_test(2, to_date('20110902', 'yyyymmdd'), null);
After running the SQL, I would like have the following result:
1, 20110101, 20110201
1, 20110201, 20110301
1, 20110301, null
2, 20110901, 20110902
2, 20110902, null
Thanks for your suggestion.How do I ask a question on the forums?
SQL and PL/SQL FAQ

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Languare is critical since it is all we have to communicate with
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Ok I am going to kick myself for this, but I can't figure it out. I am trying to figure out how to find employees which match multiple criteria in the same table.
create table emp
(empno number,
name varchar2(10))
create table skills
(skill_id   number,
skill_code varchar2(20))
create table emp_skills
(empno    number,
skill_id number,
rating   number)
insert into emp values(1, 'SMITH');
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with es1 as(
select s.skill_code, es.empno, es.rating
from skills s, emp_skills es
where s.skill_id = es.skill_id
/* main */
select e.*
from emp e
where
exists
(select 'x' from es1
where es1.rating >= 5
and es1.skill_code = 'SQL'
and es1.empno = e.empno)
and
exists
(select 'x' from es1
where es1.rating >= 6
and es1.skill_code = 'PLSQL'
and es1.empno = e.empno)
and
exists
(select 'x' from es1
where es1.rating >= 7
and es1.skill_code = 'JAVA'
and es1.empno = e.empno)
-- Addition (Another example)
with es1 as(
select s.skill_code, es.empno, es.rating
from skills s, emp_skills es
where s.skill_id = es.skill_id
/* main */
select e.*
from emp e
where
(select count(distinct es1.skill_code) from es1
where
((es1.rating >= 5 and es1.skill_code = 'SQL')
or
(es1.rating >= 6 and es1.skill_code = 'PLSQL')
or
(es1.rating >= 7 and es1.skill_code = 'JAVA')
and es1.empno = e.empno)
=3;

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HTML:
<table width="600" border="0">
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How can I export several versions at the same time?

Greetings -
I'm looking for something that I may just be missing, and hoping someone here can point me in the right direction.
Basically, I'd like to be able to select an image in my library and export several versions at the same time. For example, I select a photo and export JPG, TIFF and PSD versions in one shot without having to run three separate export requests - essentially a batch action. I can't imagine that this isn't built in already - I'm just assuming that I'm missing something obvious.
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