如何将日期 2019 年 11 月 8 日转换为 11/08/19

Question

您能否让我知道如何在 Oracle SQL 语句中将 2019 年 11 月 8 日转换为 11/08/19

Answer 1

The Oracle DATE type is stored internally as a numeric value (not to be confused with the NUMBER type). Consequently, an Oracle DATE has no format and it does not make sense to talk about converting a DATE from one format to another.

So, what you are asking about is how to convert a string representation of a particular date from one format to another. The answer is to first convert the input string to a DATE using the input string's format and then convert the resulting DATE back to a string using the desired output format.

Like this:

select to_char(to_date('November 8 2019','MONTH DD YYYY'),'MM/DD/YY') from dual;