I did an alter table to add a column called billgroup as an int(10)
This worked ok and it set all the existing rows to have "NULL" in the
new column. So I figured I would do a mass update to switch it then to
"1". These are the statements I executed but did not seem to change
anything:
select billgroup from account limit 10;
+-----------+
| billgroup |
+-----------+
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
+-----------+
10 rows in set (0.01 sec)
update account set billgroup = "1" where billgroup = "NULL";
update account set billgroup = "1" where billgroup = NULL;
update account set billgroup = "1" where billgroup = "";
update account set billgroup = "1" where billgroup = '';
update account set billgroup = "1" where billgroup = "0";
select billgroup from account limit 10;
+-----------+
| billgroup |
+-----------+
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
+-----------+
10 rows in set (0.01 sec)
?
What is the where clause I have to use to match the data in the columns
after an alter table?
MySQL 3.22.13 - Linux 2.0.36 libc5
--
Mike Machado
mike@stripped
InnerCite
Network Specialist
