frontbase - Frontbase date formatting functions

Question

I've searched all over and can't find any info in Frontbase documentation or, for that matter, SQL92-related docs...does Frontbase have functions equivalent to datepart/date_part, or date_format as found in other RDBMSes? I need to output a timestamp column as a formatted string, and the correct syntax for Frontbase eludes me.

Answer 1

可能有更好的方法来做到这一点，但是强制转换、提取和字符串连接的组合给了我想要的结果：

SELECT CAST(EXTRACT(month FROM mytimestampcol) AS VARCHAR(2)) || '/' || CAST(EXTRACT(day FROM mytimestampcol) AS VARCHAR(2)) || '/' || CAST(EXTRACT(year FROM mytimestampcol) AS VARCHAR(4)) AS "Begin Date" FROM mytable

产生“mm/dd/yyy”格式。

许多 SQL92 函数参考之一：http: //www.faircom.com/doc/sqlref/#12959.htm