On Jul 19, 2010, at 10:43 AM, Jennifer Trey wrote:
> No.... I don't want to drop it ... there is valuable data in there! I only
> want to create it if it doesn't already exist... likely going to happen first
> time the application will run. I want to create the table then and populate.
> But not the next time.
>
> Should I just let Java throw and exception and catch it ? Write a function
> for this would be optimal, although I have no idea what the correct syntax is.
>
> Cheers, Jen
Try something like this:
create or replace function build_foo_table() returns void as $$
create table foo (bar int);
$$ language sql;
select case when (select count(*) from information_schema.tables where
table_name='foo')=0 then build_foo_table() end;
drop function build_foo_table();
Cheers,
Steve
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