Re: SQL: Selecting empty rows

On Tue, 7 Nov 2000, Martin wrote: > Hi ! > > I got php4 and Postgresql 6.5. > I created a fresh table with some fields, espacialy a text-field (lets > call it "test"). > I filled in about 10 rows. > In 3 rows, I filled the field test with some text. I think this row allow NULL. So you have 3 rows with some values and 7 with NULL > > What I want to do: > 1.) Select all fields, where the field "test" is emtpy. Try this select * from table where test is null If you want to select everything but the null you can use select * from table where test is not null > 2.) Select all fields, where a string is NOT inside the field "test". > > I tried: > select * from table where test=''; > select * from table where test like ''; > select * from table where test not like 'string'; > > But I never get any rows back, where the field "test" has not been set. > > Please help ! > > Regards > > Martin > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net >