Re: [GENERAL] How to Convert VarChar to Date in PgSQL

2009/3/10 Jaume Sabater <jsabater@gmail.com>:
> On Tue, Mar 10, 2009 at 1:07 PM, Venkat Rao Tammineni
> <vtammineni@roulacglobal.com> wrote:
>
>>   I have one table which has lot of data.In the same table I have one
>> varchar filed. I want to convert into Date data type? Is It possible to
>> convert varchar to date datatype with out loosing data.Please guide me.I am
>> waiting for your great response.
>
> An easy solution would be to add a new column to the table, of type
> date, and then execute an update statement that reads, for each row,
> the value in the varchar field and writes the converted value to the
> date field.
>

resp.
alter table someatb alter column columname type date using
to_data(columname, 'YYYY-MM-DD');

regards
Pavel

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