Re: Parent Id

Bruno Wolff III wrote:

> On Thu, Oct 09, 2003 at 17:09:33 -0400,
>   Gene Vital  wrote:
> 
>>ok, I am new to Postgres so could you give a little better explanation 
>>of this  ??
>>
>>I haven't created any sequence for this I am just using a type serial 
>>field. will I have to create a sequence for it?
> 
> 
> When you use the serial type a sequence is automatically created for you.
> The name is tablename_columnname_seq unless that string is too long
> (> 64 characters I think). The actual name used gets printed as a notice
> when you create the table.

I found that in the docs after I sent out the last post.
thanks for the feed back tho :)

> 
> 
>>Here is my code to create the tables
>>
>>CREATE TABLE workstations (station_id INT4 PRIMARY KEY, name 
>>VARCHAR(50), description VARCHAR(250))
>>
>>CREATE TABLE wsoptions (option_id SERIAL PRIMARY KEY, station_id INT4 
>>REFERENCES workstations (station_id)  ON DELETE CASCADE, type 
>>VARCHAR(20), data TEXT)
>>
>>
>>
>>insert into workstations (name, description)
>>	values("new", "This is a test")
>>
>>insert into wsoptions (stations_id, type, data)
>>	values( ????, "LOCATION", "10th floor outer, office 27")
> 
> 
> The second insert should be:
> insert into wsoptions (stations_id, type, data)
> 	values( currval('workstations_station_id_seq'),
> 	'LOCATION', '10th floor outer, office 27')
> 
> Also note that you need to use single quotes for data values. Double
> quotes are used for the names of database objects.
> 
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-- 
Eugene Vital
Any technology indistinguishable from magic is insufficiently advanced.