Re^2: DBI INTERVAL Error

[Marshall]

This doesn't help the OP, but it appears that in addition to Oracle, MySQL also has INTERVAL: https://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html.

I like the idea of using Perl as a "filter helper" function. I don't use the DBI often, but when I do, I try to make things SQLite compatible and "help" it with Perl when necessary. The result usually will work on many DB's.

As another thought, it is of course possible for Perl to write and then run SQL. Read some row, then construct an SQL statement with dates calculated by Perl, avoiding the INTERVAL gizmo. It is odd to have a program write another program (SQL statement), but this can work. In that case you wind up with different kind of Perl code.

As another weird thought, since we are talking about CSV... Spreadsheets work very well with that format. Its been more than a decade, but I did have one project where I automated a spreadsheet with macros, then automated Word with macros to make a fancy looking management report of the result. This of course was not "efficient" CPU wise, but it was efficient use of my time each week. Of course mileage varies, but sometimes this is just a matter of "getting the result" and to the heck with the MIPs that it takes. How big these .CSV files are and the scope of work is of course unknown to me.