Automatic renaming of columns

Hi,
Due to new busines requirements, I have to comment couple of tables in the query object. When I start compiling after commenting out the conditions and tables, it starts throwing errors BAD BIND VARIABLE xxx NOT DEFINED. Report has automatically renamed a lot of columns by itself, for e.g. a column called name has been renamed to name1. There are PL/SQL programs which refer the column name. Now when I attempt to compile the report it starts throwing the error BAD BIND VARIABLE name NOT DEFINED because it has been renamed to name1, automatically by reports. I am baffelled at this as the columns does not have any relationship to the commented out tables. Is there a way to avoid this.
Thanks,
Bharath

The best way to avoid this is to alias the columns in the query. Whenever you make a change to the query, reports reparses the query. If other columns exist with the same name then a numeric suffix will be added. You could also apply the latest patch set (patch 10), as some fixes were made in this area.
Thanks,
Danny

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When rename a column...

Hi,
When I rename a column in presentation layer, I will have to go through each of the reports that use the column, drop the old column and pull the new one into the request and reformatting,... etc. There has to be an easier way to do this.
Appreciate any ideas, suggestions.
May

Thank you all for your kind reply.
I experimented with your comments a bit, and this is what I found:
- Renaming columns or presentation tables did not seem to affect any of my reports even if I have formulas "case when ..." in my report. It automatically creates an alias.
- Renaming a presentation catalog/subject area ( folder in presentation layer) did not affect reports either. But if you want to modify the report, say, add a new column, then you will have problem. When you edit the report, on the left side where it used to show the presentation folder, now shows this message "Either you do not have permission to use the subject area MYOLDSUBJECT within Answers, or the subject area does not exist.". I double checked my subject area folder, it does have an alias which is the old name.
May

How to rename a column

i cannot rename a column in a table;
i tried so many sql statements but with no results;
i use the following:
alter table tablename rename column old_column to new_columnname;

In other case you can create a view on that table to rename the columns like
SQL> select empno, ename, job from scott.emp;
     EMPNO ENAME      JOB
      7369 SMITH      CLERK
      7499 ALLEN      SALESMAN
      7521 WARD       SALESMAN
      7566 JONES      MANAGER
      7654 MARTIN     SALESMAN
      7698 BLAKE      MANAGER
      7782 CLARK      MANAGER
      7788 SCOTT      ANALYST
      7839 KING       PRESIDENT
      7844 TURNER     SALESMAN
      7876 ADAMS      CLERK
     EMPNO ENAME      JOB
      7900 JAMES      CLERK
      7902 FORD       ANALYST
      7934 MILLER     CLERK
14 rows selected.
SQL> create or replace view emp_vw as select empno as emp_no, Ename as Employee_Name, job from scott.emp;
View created.
SQL> select * from emp_vw;
    EMP_NO EMPLOYEE_NAME        JOB
      7369 SMITH                CLERK
      7499 ALLEN                SALESMAN
      7521 WARD                 SALESMAN
      7566 JONES                MANAGER
      7654 MARTIN               SALESMAN
      7698 BLAKE                MANAGER
      7782 CLARK                MANAGER
      7788 SCOTT                ANALYST
      7839 KING                 PRESIDENT
      7844 TURNER               SALESMAN
      7876 ADAMS                CLERK
    EMP_NO EMPLOYEE_NAME        JOB
      7900 JAMES                CLERK
      7902 FORD                 ANALYST
      7934 MILLER               CLERK
14 rows selected.
SQL>

How to rename a column name in a table? Thanks first!

I tried to drop a column age from table student by writing the
following in the sql plus environment as :
SQL> alter table student drop column age ;
but I found the following error
ORA-00905: 缺少关键字 (Lack of Key word)
I have oracle enterprise edition 8.0.5 installed at windows 2000
thank you
And I want to know how to rename a column name in a table?
thanks

In Oracle 8i, your syntax would have worked. However, if I
recall correctly, in Oracle 8.0, you can't rename or drop a
column directly. One way to get around that problem is to
create another table based on a select statement from your
original table, providing the new column name as an alias if you
want to change the column name, or omitting that column from the
select statement if you just want to drop it. Then drop the
original table. Then re-create the original table based on a
select statement from the other table. Then you can drop the
other table. Here is an example:
CREATE TABLE temporary_table_name
AS
SELECT age AS new_column_name,
       other_columns
FROM   student
DROP TABLE student
CREATE TABLE student
AS
SELECT *
FROM   temporary_table_name
DROP TABLE temporary_table_name
Something that you need to consider before doing this is
dependencies. You need to make a list of all your dependecies
before you do this, so that you can re-create them afterwards.
If there are a lot of them, it might be worthwhile to do
something else, like creating a view with an alias for the
column or just providing an alias in a select. It depends on
what you need the different column name for.

How to rename the column name in oracle 8i?

hi,
Does anyone know how to rename the column name in oracle 8i?My method was drop the relationship key first then delete the old column,finally add the new column.
Thanks for your replay.
jing

There is no facilty to rename a column name in Oracle 8i. This is possible from Oracle 9.2 version onwards.
For you task one example given below.
Example:-
Already existed table is ITEMS
columns in ITEMS are ITID, ITEMNAME.
But instead of ITID I want ITEMID.
Solution:-
step 1 :- create table items_dup
as select itid itemid, itemname from items;
step 2 :- drop table items;
step 3 :- rename items_dup to items;
Result:-
ITEMS table contains columns ITEMID, ITEMNAME

How to rename a column name

dear friends,
Is there any other way to rename a column without creating another table with the requested colum name and dropping the eariler table after inserting the values from it.

SQL> desc t2
Name                                      Null?    Type
ID2                                                NUMBER
SQL> alter table t2 rename column id2 to id;
Table altered.
SQL> desc t2
Name                                      Null?    Type
ID                                                 NUMBERRgds.
...but don't forget side effects !
SQL> create or replace view v2 as select id from t2;
View created.
SQL> select status from user_objects where object_name = 'V2';
STATUS
VALID
SQL> alter table t2 rename column id to id2;
Table altered.
SQL> select status from user_objects where object_name = 'V2';
STATUS
INVALID
SQL> select * from v2;
select * from v2
ERROR at line 1:
ORA-04063: view "SCOTT.V2" has errorsMessage was edited by:
dnikiforov

How can i change the settings so that before download the firefox gives a propmt that same file name already exists, instead of automatically renaming duplicate files by adding .1 suffix?

When I download a file, if a file of similar name already exists in the same download folder, the firefox downloads the file and renames it by adding numeric .1 to the file name.
I want the firebox to give me a prompt that similar file already exist, rather than automatically renaming it by adding suffix .1.

Downloads Options
* https://support.mozilla.com/en-US/kb/Options%20window%20-%20General%20panel#w_downloads
Unable to Download or Save files
* https://support.mozilla.com/en-US/kb/Unable%20to%20download%20or%20save%20files
Check and tell if its working.

Rename the column names in Embedded BPM Worklist

Hi,
I have embedded the BPM worklist in ADF Page.
My requirement is to rename the column names in the task list.
For example, the column 'state' should be renamed as 'Status' and the column 'from User' should be renamed as 'From'.
Is there any possibility to achieve this? Please let me know.
Regards,
Tamil

See if the solution in this post helps -
Re: Customize workspaceAlso , its better to post these questions in the BPM forum -
Business Process Management SuiteEdited by: Sudipto Desmukh on Apr 27, 2012 8:57 AM

Can we rename a column in a table ?

I am faced with a situation where I need to rename the column in a particular table. The version of Oracle is 8.1.7.2.0
Is there a DDL clause for renaming a column, or does it have to be done the conventional way - drop the column ( you want to rename ) and add a new column (with new name) ?

Direct column renaming is not available unti 9iR2. Prior to that, yes, you need to:
1) Add a column with the new name
2) Update new column with old column data
3) Drop old column

Can we rename a column in Oracle 8.1.7.4 version?

Can we rename a column in Oracle 8.1.7.4 version?

Hi,
There is no direct way of doing it but if you have DBA access then try this: (these 2 tables are in SYS user)
SELECT obj#
FROM obj$
WHERE name = 'your table name';
SELECT col#
FROM col$
WHERE obj# = obj# from above query
AND name = 'your column name';
UPDATE col$
SET name = 'new column name'
WHERE obj# = obj# from first query
AND col# = col# from above query;
And this change might not be immediately visible.
So once you are done with above, run the following:
ALTER SYSTEM FLUSH SHARED_POOL;
Then go to the respective user and describe the table and you will see new name. There might be some mistake in the above queries as I could not test it because I don't have ORACLE on my current system.
Hope this helps.
Regards
-Rajeev

Rename a column in query

Hello,
I want to rename a column in a query. What are the possible method?
1. We use "AS" to rename.
E.g.
SQL> select sysdate as "Today's date" from dual;
Today's d
12-JUN-07
The above query returns "Today's Date". But the column name in the result set is not colplete "Today's Date" Why?
Thanks.

It' because SQL*Plus truncates it, try this
col "Today's date" on format a12
SQL> select sysdate as "Today's date" from dual;
Today's date
12-JUN-07
Regards,
PP
Message was edited by:
porzer

Automatically renaming an uploaded file

I am creating a page to upload files, as well as to submit
data about the file to be stored in a database. When the form data
is submitted, how can I program it to automatically rename the
uploaded file to the ID or Key number of the row in the database in
which the file's information is stored?

What scripting language are you using?
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"AngryCloud" <[email protected]> wrote in
message
news:evmlp4$lfh$[email protected]..
>I am creating a page to upload files, as well as to
submit data about the
>file
> to be stored in a database. When the form data is
submitted, how can I
> program
> it to automatically rename the uploaded file to the ID
or Key number of
> the row
> in the database in which the file's information is
stored?
>

TO Rename a column name

Hi all,
I have a table employee with columns
'employee_id',
'employee_name'
' employee_city' ( Note the spaces before the column name )
The table is created successfully.
But i cant to able to retreive the data by specifying the column name..
eg: select employee_city from employee.
It throws an error.
Please send me a solution to reanme the column name, so that it should not contain any spaces at start & end.
Thanks & Regards,
Hariharan ST

Obviously the table was created this way:
SQL>create table testtab
"employee_id" number,
"employee_name" varchar2(100),
" employee_city" varchar2(100)
Table created.
SQL>desc testtab
Name                                      Null?    Type
employee_id                                        NUMBER
employee_name                                      VARCHAR2(100)
employee_city                                     VARCHAR2(100)Note the double quotes: Columns that are created this way can only be selected using double quotes, too:
SQL>select employee_city from testtab;
select employee_city from testtab
ERROR at line 1:
ORA-00904: "EMPLOYEE_CITY": invalid identifier
SQL>select " employee_city" from testtab;
employee_city
Chicago
SQL>This of course is a very bad idea. Dave already showed you how to rename the columns.
Regards,
Gerd

Rename a column name

Hi All,
Can rename a column name permanantly.?
Please clarify

Yes. It is possible
alter table some_table rename column column_name to new_column_name;
Regards
K.Rajkumar

Odi REVERSE ENGINEERING AFTER RENAMING A COLUMN.

hi,
i have altered the table definition .
i have just renamed the columns name .
now when i reverse engineer , the model contains new as well old columns.
is there any way by which i can rename existing columns to the new one.

No. You cannot.
ODI doesnt know what your intentions were with the column renames.
It doesnt remove the columns during reverse engineering that dont exist in the database because the columns in ODI maybe used in the mappings.
The only way you can do is by doing it manually in ODI by renaming them

Automatic renaming of columns

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