Re: changing a column type
- From: "Tim Gorman" <tim@xxxxxxxxx>
- To: Brian.Zelli@xxxxxxxxxxxxxxx, "oracle-l" <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 01 Jun 2012 18:38:23 +0000
In 10gR2...
SQL> create table test (col1 number);
Table created.
SQL> insert into test values (1);
1 row created.
SQL> alter table test modify (col1 varchar2(30));
alter table test modify (col1 varchar2(30))
*
ERROR at line 1:
ORA-01439: column to be modified must be empty to change datatype
SQL> delete test;
1 row deleted.
SQL> alter table test modify (col1 varchar2(30));
Table altered.
-----Original Message-----
From: Zelli, Brian [mailto:Brian.Zelli@xxxxxxxxxxxxxxx]
Sent: Friday, June 1, 2012 11:51 AM
To: 'oracle-l'
Subject: changing a column type
A colleague wants to change a column type from numeric to alpha-numeric. Can he
change it with data in it?ciao,BrianBrian ZelliSenior Database
AdministratorEnterprise Applications/Systems IntegrationRoswell Park Cancer
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