Re: [SQL] empty data
От | Stuart Rison |
---|---|
Тема | Re: [SQL] empty data |
Дата | |
Msg-id | l03110703b1cfe57701a2@[128.40.242.190] обсуждение исходный текст |
Ответ на | [SQL] empty data (Sergio Brandano <serbr@tin.it>) |
Список | pgsql-sql |
>> serbr=> CREATE TABLE foo (mtdata date); >> CREATE >> serbr=> \dt >> >> Database = serbr >> +------------------+----------------------------------+----------+ >> | Owner | Relation | Type | >> +------------------+----------------------------------+----------+ >> | serbr | foo | table | >> +------------------+----------------------------------+----------+ >> serbr=> INSERT INTO foo VALUES (''); >> ERROR: Bad date external representation >> serbr=> INSERT INTO foo VALUES ('//'); >> ERROR: Bad date external representation > > My problem arise in a more general context, where the date may not > be available at the time of data insert/update, and the data must > be empty. > > What can I do? (I would not like to define a my own date-type...) Try insert into foo values (NULL); Naturally, this is silly in the example you give since you are putting a NULL in a single field table and therefore you might as well not put a value in. Hope this helps. Stuart. +-------------------------+--------------------------------------+ | Stuart Rison | Ludwig Institute for Cancer Research | +-------------------------+ University College London | | Tel. (0171) 878 4041 | 91 Riding House Street | | Fax. (0171) 878 4040 | London, W1P 8BT, UNITED KINGDOM. | +-------------------------+--------------------------------------+ | stuart@NOJUNK_ludwig.ucl.ac.uk [Remove NOJUNK_ for it to work] | +----------------------------------------------------------------+
В списке pgsql-sql по дате отправления: