How to delete a virtual column in a table

Is it possible to delete a virtual column in a table. Please give the complete syntax to help do it

Like this...
SQL> select * from dept;
    DEPTNO DNAME          LOC
        10 ACCOUNTING     NEW YORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON
SQL> alter table dept add (sal as (deptno*10));
Table altered.
SQL> select * from dept;
    DEPTNO DNAME          LOC                  SAL
        10 ACCOUNTING     NEW YORK             100
        20 RESEARCH       DALLAS               200
        30 SALES          CHICAGO              300
        40 OPERATIONS     BOSTON               400
SQL> alter table dept drop (sal);
Table altered.
SQL> select * from dept;
    DEPTNO DNAME          LOC
        10 ACCOUNTING     NEW YORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON

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How to delete a perticular column value

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Deleting a column value is probably updating it to NULL, in your case.
So,
update [table]
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where [condition to identify the row]
/

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Hello Bala,
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METHOD onactiondelete_rows .
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Edited by: Ram Vungarala on Sep 24, 2008 9:09 AM
Edited by: Ram Vungarala on Sep 24, 2008 9:15 AM

Hi,
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{code}
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Hi,
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can you give a sample code for this... I really want
this code...
just to re-confirm you, I want to add or delete
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hi jim
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How to delete the trailng zeros in my table

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Duplicate post
how to delete the trailng zeros in my table

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Thanks SreeKanth

Hi,
looks like you are on Infomation Builders, correct? If yes through which adapter and to what DB are you connecting?? in an R3/BW system you can do the folowing:
"(ABAP)
SELECT DISTINCT FIELDNAME
FROM DD03L
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AND AS4LOCAL = 'A'
AND KEYFLAG = 'X'
ORDER BY 1
Another option is goto directly to the RDBMS; in this case let me which one are you using
hope this helps...
Olivier.
Message was edited by:
Olivier Cora

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How to delete a virtual column in a table

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