COMMAND column in V$SESSION table

Is there any table which stores all the meaning of various values that can be stored in COMMAND column of V$SESSION table
Like 3 is for SELECT and 47 for Execute, I found some documentation in data dictionary but was wondering if there is some table that can be used when a trigger or procedure is running to pull the values on the fly.
Thx

You can find the various values for V$SESSION.COMMAND in Table 7-5 COMMAND Column of V$SESSION and Corresponding Commands found in the link below to build your own table.
http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2088.htm#sthref3985

Similar Messages

COMMAND column in V$SESSION just show s SELECT

Hi,
i queried command column in v$session, but it shows only 3(which is for SELECT) and 0 (which is for unknown), even i update some thing its not shown.
Thanks

Hi Pavan,
following is the list for that
Number     Command     Number     Command
1     CREATE TABLE     2     INSERT
3     SELECT     4     CREATE CLUSTER
5     ALTER CLUSTER     6     UPDATE
7     DELETE     8     DROP CLUSTER
9     CREATE INDEX     10     DROP INDEX
11     ALTER INDEX     12     DROP TABLE
13     CREATE SEQUENCE     14     ALTER SEQUENCE
15     ALTER TABLE     16     DROP SEQUENCE
17     GRANT OBJECT     18     REVOKE OBJECT
19     CREATE SYNONYM     20     DROP SYNONYM
21     CREATE VIEW     22     DROP VIEW
23     VALIDATE INDEX     24     CREATE PROCEDURE
25     ALTER PROCEDURE     26     LOCK
27     NO-OP     28     RENAME
29     COMMENT     30     AUDIT OBJECT
31     NOAUDIT OBJECT     32     CREATE DATABASE LINK
33     DROP DATABASE LINK     34     CREATE DATABASE
35     ALTER DATABASE     36     CREATE ROLLBACK SEG
37     ALTER ROLLBACK SEG     38     DROP ROLLBACK SEG
39     CREATE TABLESPACE     40     ALTER TABLESPACE
41     DROP TABLESPACE     42     ALTER SESSION
43     ALTER USER     44     COMMIT
45     ROLLBACK     46     SAVEPOINT
47     PL/SQL EXECUTE     48     SET TRANSACTION
49     ALTER SYSTEM     50     EXPLAIN
51     CREATE USER     52     CREATE ROLE
53     DROP USER     54     DROP ROLE
55     SET ROLE     56     CREATE SCHEMA
57     CREATE CONTROL FILE     59     CREATE TRIGGER
60     ALTER TRIGGER     61     DROP TRIGGER
62     ANALYZE TABLE     63     ANALYZE INDEX
64     ANALYZE CLUSTER     65     CREATE PROFILE
66     DROP PROFILE     67     ALTER PROFILE
68     DROP PROCEDURE     70     ALTER RESOURCE COST
71     CREATE MATERIALIZED VIEW LOG     72     ALTER MATERIALIZED VIEW LOG
73     DROP MATERIALIZED VIEW LOG     74     CREATE MATERIALIZED VIEW
75     ALTER MATERIALIZED VIEW     76     DROP MATERIALIZED VIEW
77     CREATE TYPE     78     DROP TYPE
79     ALTER ROLE     80     ALTER TYPE
81     CREATE TYPE BODY     82     ALTER TYPE BODY
83     DROP TYPE BODY     84     DROP LIBRARY
85     TRUNCATE TABLE     86     TRUNCATE CLUSTER
91     CREATE FUNCTION     92     ALTER FUNCTION
93     DROP FUNCTION     94     CREATE PACKAGE
95     ALTER PACKAGE     96     DROP PACKAGE
97     CREATE PACKAGE BODY     98     ALTER PACKAGE BODY
99     DROP PACKAGE BODY     100     LOGON
101     LOGOFF     102     LOGOFF BY CLEANUP
103     SESSION REC     104     SYSTEM AUDIT
105     SYSTEM NOAUDIT     106     AUDIT DEFAULT
107     NOAUDIT DEFAULT     108     SYSTEM GRANT
109     SYSTEM REVOKE     110     CREATE PUBLIC SYNONYM
111     DROP PUBLIC SYNONYM     112     CREATE PUBLIC DATABASE LINK
113     DROP PUBLIC DATABASE LINK     114     GRANT ROLE
115     REVOKE ROLE     116     EXECUTE PROCEDURE
117     USER COMMENT     118     ENABLE TRIGGER
119     DISABLE TRIGGER     120     ENABLE ALL TRIGGERS
121     DISABLE ALL TRIGGERS     122     NETWORK ERROR
123     EXECUTE TYPE     157     CREATE DIRECTORY
158     DROP DIRECTORY     159     CREATE LIBRARY
160     CREATE JAVA     161     ALTER JAVA
162     DROP JAVA     163     CREATE OPERATOR
164     CREATE INDEXTYPE     165     DROP INDEXTYPE
167     DROP OPERATOR     168     ASSOCIATE STATISTICS
169     DISASSOCIATE STATISTICS     170     CALL METHOD
171     CREATE SUMMARY     172     ALTER SUMMARY
173     DROP SUMMARY     174     CREATE DIMENSION
175     ALTER DIMENSION     176     DROP DIMENSION
177     CREATE CONTEXT     178     DROP CONTEXT
179     ALTER OUTLINE     180     CREATE OUTLINE
181     DROP OUTLINE     182     UPDATE INDEXES
183     ALTER OPERATOR

Command column data in SYSMAINTPLAN_LOGDETAIL in MSDB database?

Hi All,
I have been facing the data issue in SYSMAINTPLAN_LOGDETAIL table in MSDB.
When I query on this table, I don't see data in "COMMAND" column.
And also I am not able to view T-SQL in maintenance plan history as it is disable.
Can any one please let me know the solution how can I get command column data into the table?
thanks in advance.
Nik
Regards, Naman

Hi,
In SQL Server 2000 symaintplan table was acessible directly but from 2005 onwards this table is not directly accessible due to increased security this table gets updated when maintenance plan runs. I dont think its a data issue i ran below commands
on my SQL Server found some rows had some entries for column 'command' while some of it does not. Also curious thing was when col 'succeeded' value was zero this col had some text present.
select * from msdb.dbo.sysmaintplan_logdetail where command <> '' and succeeded= 0--executing select * can take long time please note depending on rows presentselect * from msdb.dbo.sysmaintplan_logdetail where succeeded= 0
I cannot find any online documentation on msdb.dbo.sysmaintplan_logdetails to actually see what is being captured in this column.But what I can guess is it captures command which actually executed.This is a system table its difficult to tell how actually column
command is updated
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it.
My TechNet Wiki Articles

How to get only column names from different tables as single table columns

Hi All,
I have one requirement in which we want only column names from different tables.
for example :
I have three tables T1 ,T2, T3 having
col1 clo2 clo3 --> T1 ,
col3 col5 ,clo6 --> T2 ,
Clo6 col8 col9 --> T3
columns i want to get only all Column names from all table as single Resultset not any data from that how can i get that empty resultset
because this empty result i want to bind in datagridview(front end) as Empty resultset
Please tell me anyways to do this
Niraj Sevalkar

If I understand you want an empty result set, just with metadata. SET FMTONLY do the trick:
SET FMTONLY ON
SELECT Col1, Col2, Col3, ....., Coln
FROM
T1 CROSS JOIN T2 CROSS JOIN T3
SET FMTONLY OFF
Another alternative is to include an imposible contition
SELECT Col1, Col2, Col3, ....., Coln
FROM
T1 CROSS JOIN T2 CROSS JOIN T3
WHERE 1 = 0
If you are using a SqlDataAdapter in your client application. You can use the FillSchema method. the select command may be any select statement that returns the columns you want. Under the covers FillSchema will call SET FMTONLY ON.
If you are using SqlCommand.ExecuteReader you can pass SchemaOnly to CommandBehavior argument. SET FMTONLY ON is called under the covers. Again the select command may be any select statement that returns the columns you want.
"No darás tropezón ni desatino que no te haga adelantar camino" Bernardo Balbuena

How to get only selected table columns from a DB table to be display in pag

hi i have some 18 columns in my database table, but i need to add only the selected columns to be added to my table component. How can i do it. any idea regarding this. Please help me out to solve this problem.
Thank You in Adavnce.

This is an ambiguous question but I will give 2 answers for 2 interpretations
1 In the Outline window, right-click the rowset in the Session bean (or whatever bean you put the rowset in, by default it is the session bean). In the top pane, select or clear the checkboxes to determine which columns are obtained by the query.
2 Right click the Table component and choose Table Layout, move the columns you don't want to the left panel
Resources: http://developers.sun.com/prodtech/javatools/jscreator/learning/tutorials/2/databoundcomponents.html
If you meant a different question, please clarify

What is the meaning of "PSEUDO" and "NONE" in v$session table.

Hi
What is the meaning of "PSEUDO" and "NONE" in v$session table.
V$SESSION:
SERVER VARCHAR2(9) Server type (DEDICATED| SHARED| PSEUDO| NONE)
thanks
siva

PSEUDO is the server column's value of killed sessions, until they are cleaned up by PMON.
A dedicated server session will always have DEDICATED as server value, while a shared server session has SHARED when it's active, and NONE when it's inactive.

DUPLICATE A COLUMN IN A SAME TABLE ?

Do u know a way to duplicate a column in a same table without using the "INSERT INTO" function ?

Here is Answer Why we want to do this.
Today I face the problem.I want to change the name of the column with out loss of data.In oracle we don't have this facility. but through logic you can do it.
Suppose a table name Temp with Column names
Rollno ,Name,Amount
I want to change the column name Amount to NewAmount.
Follow the following steps.
1. Add new column with alter command
2. Update new Column with the above statement.
3. drop the old column.
null

No of minuts in McuJoinsAndLeaves and session tables ????

Hi All,
I am trying to find out the No. of minutes in McuJoinsAndLeaves table(lcscdr DB) and session table(Qoeetrics DB) are exactly same or not..?? if no. of minutes are same in both table............please tell me conditions ????
Thanks
Brij

Which column did you refer to?
Please compare these two tables according to the following link.
McuJoinsAndLeaves Table
http://technet.microsoft.com/en-us/library/gg398316.aspx
Session Table
http://technet.microsoft.com/en-us/library/gg398635.aspx
In my lab, I didn’t see the same data from these two tables.
Lisa Zheng
TechNet Community Support

Nsert/Update and Add Column at the same Table and at the "same" Time

Hello,
I want Insert/Update and Add Column at the same Table and at the "same" Time but in different sessions.
Example:
At first the "insert/update" statement:
Insert into TestTable (Testid,Value) values (1,5105);
After that the "add" statement:
Alter table TestTable add TestColumn number;
- sadly now I get the message: ORA-00054: resource busy and acquire with NOWAIT specified
"insert/update" statement:
Insert into TestTable (Testid,Value) values (2,1135);
After that the execute commit.
I don't know when the first session set the commit statement so I want that the DB the "Alter Table..." statement execute if it's possible.
If it's possible I want to save a repeat loop with the "Alter Table..." statemtent.
Thanks for ideas

Well I want to walk in the rain without and umbrella and still stay dry, but it ain't gonna happen.
You can't run a DDL statement against a table with transactions pending. Session 2 has to wait until session commits or rollbacks (or until the session is killed). That's just the way it is.
This makes sense if you think about it. The data dictionary has to be consistent across all sessions. If session 2 was allowed to change the table structure whilst session 1 has a pending transaction then the database is in an inconsistent state. This is easier to see if you consider the reverse situation - the ALTER TABLE statement run by session 2 does a DROP COLUMN TESTID rather than adding a column: now what should happen to session 1's INSERT statement? You have retrospectively invalidated a statement that was perfectly legal when it was executed.
If it's possible I want to save a repeat loop with the "Alter Table..." statemtent.Fnord.
Cheers, APC

About the last_call_et column in v$session

Hello,
Can someone help me about a behaviour that is very strange ...
We have connection about SAS on a database which manipulate Oracle table and others SAS Structure.
The query is a "join" about that table and a "SAS Table" between million of lines in the Oracle table one ....
It last a long time ....
During the query, we have time to see at the v$session table...
At any time (it lasts 3h), we saw that the column 'last_call_et' of the v$session never change : it continuesly stay at 0.
What does it mean ? it means that SAS send a query every second ? Or this column shows the last "internal call"?
If this is the right reason, i would'nt understand why, when i take the same query( launched by SAS) in TOAD, there is no the same behaviour and this behaviuor is in that case the right behaviour : the session is ACTIVE but the last_call_et respresents really the time since i launched the query... So why when SAS do it, the last_call_et stay at 0 ? it works like SAS launch every second this query !!!!
Can someone help me ?
Thanks ...

Jonathan Lewis wrote:
user12046632 wrote:
When you say :
A FETCH is a database call :
That means that it must affect the value of 'last_call_et' or not ?"A Fetch is a database call"
"last_call_et" -- certainly sounds like that could be something to do with database calls, perhaps End Time of LAST database CALL.
A parse is also a database call, as is an execute ... I feel that perhaps I was a little too concise with my description. You asked why SAS could be doing lots of calls (although that wasn't exactly how you put the question) and I replied that calls could include fetches. And yes, the last_call_et is reset on every fetch (amongst other things - and ignoring the special behaviour of background processes).Ok
>
(accordint to me, only to user's activity do so and not to "database internal callsl") ! isn't it ?You don't want to believe everything you read on the internet - even if it did come from the online manuals. But a "fetch" is not a "database internal call" anyway, it's a call from a client to the server.Be sure that i don't do so.
But the explanation of Oracle of the term 'cal' is not so precise at all ...
>
Your follonwing explanations seems to answers contrarily ....
But the question is there : what sort of call affetcs the value of "last_call_et"All database calls - which you should read as "all calls from the client to the server".Ok
>
>>
>>
When you say
all_rows plan => parse call, execute call ..... with very long call time, lots of fetch calls
first_rows_n plan => parse call, execute call ... with very short call time, lots of fetch calls
In the first case you would see last_call_et constantly growing until the fetches started
In the second case last_call_et would keep resetting to zero so fast you probably wouldn't see it as a non-zero value.
I don't understand : ok for the conséquences on the timing ... but if there are a lot of fetch call in both cases : the behaviour on the 'last_call_et' has to be equal ?True - but in one case I've included an execute call that is active for a very long time, and in the other I've proposed an execute call that is active for a very short time. (And execute calls are calls, and I did ask you about the exact details of your observations.)Ok
If we consider that every call reset to 0 the value of 'last_call_et',
why, in the case of launching the same request by TOAD, shouldn't i see the reset to 0 when the fetches works (because in TOAD during the whole query, which means since the click on "launching query" to the retrieving of data, the value did not reset to 0) ?
>
>>
When you say
Having said that, I've just run a quick test in SQL*Plus on 11.1.0.6 and 10.2.0.3 to demonstrate this point, and 11g is behaving differently from 10g - in the case where the last_call_et should be growing it stays at zero.
"in the case" : in the case of the v11 or the v10 ?11g
In my case : i'am on a v10.2.0.3 ::: Is there a bug ?Not that I know of.ok. So it is in V11 that you have an incorrect behaviour ....
>>
>
Regards
Jonathan LewisLAST NEWS : we have relaunched the query in SAS and observed that we have the same context of plan in both cases (by SAS en y TOAD) : ALL_ROWS.
Very strange ...
Last question :
Just to be sure : When you talk about "First Rows plan" : it means that the retrieve data are restricted to the first rows encountered
or
it is just the plan of the query which is in "that context" which means that the engine works so although the whole data are retrieved ....
thanks for your return

Copying Long Raw Column Data to another table

hi everyone,
i am trying to Copy Long Raw Column Data to another table in the same schema. this is the situation
Table A (col1 number,col2 long raw) with 100 records
Table B (col1 number,col2 long raw) with 0 records
now i want to copy col2 of the table A into the column 2 of the table B. but long raw data cant be retrieved in a select statement so is there any specific procedure that will copy long raw data or there is any simple way.
i will be really grateful for anybody's help.
thanx
shakeel

Dust off that old SQL*PLUS command "COPY" ...
create table tablea (col1 number,col2 long raw)
insert into tablea values (1, testrawio.chartoraw('this is line one'));
insert into tablea values (2, testrawio.chartoraw('this is line two'));
insert into tablea values (3, testrawio.chartoraw('this is line three'));
create table tableb (col1 number,col2 long raw)
copy from scott/tiger@larry insert tableb (col1, col2) using select col1, col2 from tablea
Array fetch/bind size is 15. (arraysize is 15)
Will commit when done. (copycommit is 0)
Maximum long size is 80. (long is 80)
   3 rows selected from scott@tiger.
   3 rows inserted into TABLEB.
   3 rows committed into TABLEB at DEFAULT HOST connection.
SQL>Now to prove it has worked :
begin
   for lr in (select col1, col2 from tableb)
   loop
      dbms_output.put_line('col1 = '||lr.col1||
                           ' and col2 contains long raw equivalent of '||testrawio.rawtochar(lr.col2));
   end loop;
end;
col1 = 1 and col2 contains long raw equivalent of this is line one
col1 = 2 and col2 contains long raw equivalent of this is line two
col1 = 3 and col2 contains long raw equivalent of this is line three
PL/SQL procedure successfully completed.
SQL> Note : In order to load some test data and prove the method works I made use of a package called "testrawio" located at http://www.classicity.com/oracle/htdocs/forums/ClsyForumID125/7.html
AMM

How to find the number of columns in an internal table DYNAMICALLY ?

Hi,
How to find the number of columns in an internal table DYNAMICALLY ?
Thanks and Regards,
saleem.

Hi,
you can find the number of columns and their order using
the <b>'REUSE_ALV_FIELDCATALOG_MERGE'</b>
call function 'REUSE_ALV_FIELDCATALOG_MERGE'
EXPORTING
   I_PROGRAM_NAME               = sy-repid
   I_INTERNAL_TABNAME           = 'ITAB'
   I_INCLNAME                   = sy-repid
changing
    ct_fieldcat                  = IT_FIELDCAT
EXCEPTIONS
   INCONSISTENT_INTERFACE       = 1
   PROGRAM_ERROR                = 2
   OTHERS                       = 3
if sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
endif
now describe your fieldcat . and find no of columns.
and their order also..
regards
vijay

Find duplication values from multiple columns in a big table

Hi All,
I am working on a 11gR2 database in linux. i want to display record that have duplicate values in 2 columns.
1. Table Structure :-
CREATE TABLE A
ID NUMBER(10),
F_NAME VARCHAR2(100 BYTE),
L_NAME VARCHAR2(100 BYTE)
2. Sample Data:-
Insert into A
(ID, F_NAME, L_NAME) Values (1,'TONY' ,'SUMIT');
Insert into A
(ID, F_NAME, L_NAME) Values (2,'SUMIT' ,'KEITH');
Insert into A
(ID, F_NAME, L_NAME) Values (3,'NORA','SMITH');
Insert into A
(ID, F_NAME, L_NAME) Values (4,'APRIL','TONY');
Insert into A
(ID, F_NAME, L_NAME) Values (5,'ROSS','TAM');
ID F_NAME L_NAME
1 TONY SUMIT
2 SUMIT KEITH
3 NORA SMITH
4 APRIL TONY
5 ROSS TAM
4. My requirement is i need display IDs that it's F_NAME or L_NAME has duplication in F_NAME or L_NAME columns.
The result should be
ID
1 reason: F_NAME (TONY) equals to L_NAME of record 4, L_NAME (SUMIT) equals to F_NAME of record 2
2 reason: F_NAME (SUMIT) equals to L_NAME of record 1
4 reason: L_NAME (TONY) equals to F_NAME of record 1
record 3, 5 aren't in the result because there is no duplication in F_NAME or L_NAME columns for NORA,SMITH, ROSS, TAM
The table contains 10 million records, i really need to consider the performance.
kindly suggest me the solution

Note: Forum members please suggest better approach to this -- below.. convert into SQL :)
I know I will be opposed by many people in this forum for posting such in-efficient solution.
But trying to learn along with you.. its an interesting problem which must deal with all rows vs all rows to get all combinations.
But I am still thinking how to write it in SQL, probably will learn from this post after we receive some good SQL solution for the code what I am currently doing now.
step 1: created a table B similar to table A and added a column reason
CREATE TABLE B
ID      NUMBER(10),
F_NAME VARCHAR2(100 BYTE),
L_NAME VARCHAR2(100 BYTE),
REASON VARCHAR2(1000 BYTE) --- ADDED THIS
)Definetely inefficient :(
BEGIN
   FOR rec_outer IN (SELECT * FROM A) LOOP
      FOR rec_inner IN (SELECT * FROM A) LOOP
         IF (rec_outer.f_name = rec_inner.l_name) THEN
            UPDATE B
               SET reason =
                         rec_outer.id
                      || ' reason: F_NAME ('
                      || rec_outer.f_name
                      || ') equals to L_NAME of record '
                      || rec_inner.id
             WHERE b.id = rec_outer.id;
         END IF;
      END LOOP;
      FOR rec_inner IN (SELECT * FROM A) LOOP
         IF (rec_outer.l_name = rec_inner.f_name) THEN
            UPDATE B
               SET reason =
                      reason
                      || CASE
                            WHEN reason IS NULL THEN
                               rec_outer.id || ' reason: '
                            ELSE
                         END
                      || 'L_NAME ('
                      || rec_inner.f_name
                      || ') equals to F_NAME of record '
                      || rec_inner.id
             WHERE b.id = rec_outer.id;
         END IF;
      END LOOP;
   END LOOP;
   COMMIT;
EXCEPTION
   WHEN OTHERS THEN
      rollback;
      RAISE;
END;OUTPUT:
ID     F_NAME     L_NAME     REASON
1     TONY     SUMIT     1 reason: F_NAME (TONY) equals to L_NAME of record 4,L_NAME (SUMIT) equals to F_NAME of record 2
2     SUMIT     KEITH     2 reason: F_NAME (SUMIT) equals to L_NAME of record 1
3     NORA     SMITH
4     APRIL     TONY     4 reason: L_NAME (TONY) equals to F_NAME of record 1
5     ROSS     TAM     Cheers,
Manik.
Edited : Added rollback

Language Session table in EBS

Hi friends,
In oracle EBS R12.1.3 we have two language preference options like 'AR' for Arabic and 'US' for English. Soon after the user changes the respective language and logs into the EBS application, those change languages will be stored as a code in session table for that EBS user.
I need to know that session table name where does the language is get setted for the user who logs into the application, so that i can query the appropriate session language for the corresponding user from the table in db.
Thanks in advance.
Brgds,
Mini

Mini wrote:
Hi Srini,
Actually the problem that im facing is that i couldnt pass the USERENV('LANG') variable to the where clause in my APEX from EBS session.
I have APEX 4.2 integrated with Oracle EBS R12.1.3, now from the EBS menu i can redirect to the apex page(by passing the apex login page) with EBS credentials.
Im near to the stage of bringing Arabic and English language in APEX, as my db contains data in both the lang.
But I need to bring it according to the USERENV(‘LANG’) that is set in the db for the users session from EBS login. But if I used the USERENV(‘LANG’) parameter in APEX it is not recognizing this EBS user language parameter. Whether you have any idea of how to make the APEX to recognize this EBS user language parameters.
I dont know how to pass this EBS user session variable to the apex, so that the data will be visible according to the EBS session language they select(either 'AR' or 'US').
If i give like below in the APEX report query of my where clause, means
where language = userenv('lang')
It is not working. But if i harcode like
where language = 'AR' means then i can see the arabic datas from db in APEX, but how i can pass this userenv code dynamically according to the EBS logged in user to the APEX.
Thanks
Brgds,
MiniThis is a different topic and I see that you have created another thread for it -- How to pass userenv('lang') of EBS user session to APEX 4.2 pages
Please update the other thread instead of this one.
Thanks,
Hussein

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.

COMMAND column in V$SESSION table

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