database - Vertica 格式的 To_date 函数？

Question

如何让 Vertica 函数to_date('','format')输出如下：

DDMonYYYY - 01/ABR/2012 

和它不一样（01-04-2012）？！

dbadmin=> select now();
              now
--------------------------------
 19/09/2012 11:03:48.284339 BRT
(1 row)

dbadmin=> show datestyle;
   name    | setting
-----------+----------
 datestyle | SQL, DMY
(1 row)

Answer 1

尝试这个：

SELECT TO_CHAR(CURRENT_TIMESTAMP, 'DD/MON/YYYY');

Answer 2

to_date() takes a string and converts it into a date object. The output you see returned is not formatted to the specified format. It is just an acknowledgement that the date object got created.