Re: Create table if not exists ... how ??

[Jennifer Trey <jennifer.trey@xxxxxxxxx>]

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

On Mon, Jul 19, 2010 at 5:58 PM, Joe Conway <mail@xxxxxxxxxxxxx> wrote:

On 07/19/2010 09:33 AM, Jennifer Trey wrote:
> I can't figure out the correct syntax...
>
> I have this, but it just keeps complaining about the IF
>
> IF NOT EXISTS (SELECT table_name FROM information_schema.tables where
> table_name = 'post_codes')
>
> THEN
>
> CREATE TABLE post_codes

Probably better to do:

DROP TABLE IF EXISTS post_codes;
CREATE TABLE post_codes(...);

See:
 http://www.postgresql.org/docs/8.4/interactive/sql-droptable.html

HTH,

Joe

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