SQL PostgreSql + 日期格式 将 YYYY-MM-DD 转换为日、日、月、年
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PostgreSql + Date Format Convert YYYY-MM-DD to Day, Date Month Year
提问by Rubyist
Suppose I am storing this format in my postgre database table. Now I have to compare this date with one of the texbox value contain date in different format.
假设我将此格式存储在我的 postgre 数据库表中。现在我必须将此日期与包含不同格式日期的 texbox 值之一进行比较。
Database Date Format :: YYYY-MM-DD For example :: 2010-11-26
Text-Field Date Format :: Day, Month Date, Year :: Fri, Nov 26, 10
Now I have tried to compare this value but no response Plz suggest.
现在我试图比较这个值，但没有回应 Plz 建议。
Select * from table_name where user_id=('11')
and to_char(effective_date, $$$$$$$$)=trim('Fri, Nov 26, 10');
Now Plz suggest which format should I use in place of $$$$$$$$ ???
现在请建议我应该使用哪种格式来代替 $$$$$$$$ ???
Thanks !!!
谢谢 ！！！
回答by Frank Heikens
SELECT
*
FROM
table_name
WHERE
user_id=('11')
AND
to_char(effective_date, 'Dy, Mon DD, YY') = trim('Fri, Nov 26, 10');
回答by a_horse_with_no_name
This should do it: to_char(effective_date, 'Dy, Mon DD, YY')
这应该这样做： to_char(effective_date, 'Dy, Mon DD, YY')
Btw: this is all documented in the manual: http://www.postgresql.org/docs/current/static/functions-formatting.html
顺便说一句：这都记录在手册中：http: //www.postgresql.org/docs/current/static/functions-formatting.html
