Depending on your MySQL version you could use a subquery by combining the
two queries you mentioned, for a fairly straight-forward query.
http://dev.mysql.com/tech-resources/articles/4.1/subqueries.html
http://mysqld.active-venture.com/Subqueries.html
You could read about optimizing subqueries
Unfortunately, I'm on 4.0.x so sub-queries are out. And yeah, I
should get my host to upgrade but we both work for the government
so that isn't happening. ;-)
Any other thoughts.
--
Kevin Murphy
Webmaster: Information and Marketing Services
Western Nevada Community College
www.wncc.edu
What about a union? Does mySql 4.0.x support it?
select * from blank where tchar_10 != ''
union all
select * from blank where tchar_10 = ''
- Dave
On 12/21/06, Naintara [EMAIL PROTECTED] wrote:
Depending on your MySQL version you could use a subquery by combining the
two queries you
This is a little weird looking, but should do the job. Remember that items in
your 'order by' can be manipulated conditionally. In this case, I'm looking
for NULL as well as '' (empty) and changing it to something that should come
after all your normal alphabetical values, but it doesn't
This is a little weird looking, but should do the job. Remember that items in
your 'order by' can be manipulated conditionally. In this case, I'm looking
for NULL as well as '' (empty) and changing it to something that should come
after all your normal alphabetical values, but it doesn't
In case the blank is a null or is really a blank:
select * from blank where tchar_10 is not null and tchar_10 != ''
union all
select * from blank where tchar_10 is null or tchar_10 = ''
- Dave
On 12/21/06, [EMAIL PROTECTED] [EMAIL PROTECTED]
wrote:
This is a little weird looking, but should
You shouldn't have to do that. the IFNULL() handles all that. If the item is
null, it returns an emptry string ''. If it's blank/empty, it returns an empty
string. This is just used for the comparison = ''. This determines if it's
empty or null and if so, returns
I haven't tried the union method the query i have is actually
quite a bit more complicated than just a simple select * from a
single table, so while it may work, it might take a while to write it
if I am reading all this right.
But yes, the ifnull() method works just fine. Thanks for
