* Manjeet > I am inserting user details from a file. The file has users seperated by > commas(,) > > example of file > > manjeet,tom,tim,,john,alexander > > > Using perl script i am reading the file and seperating user info at commas > and inserting into database. > > Now my problem is that i don't want to insert the fourth user which is > blank.
Then don't... ;) > my table definitions are same as in previous mail. > > How should i avoid of not inserting data which is not defined in between > commas. I can do that in script. Yes, and you should. > Is there anyway of doing it database level. No, I don't think so. (Some trickery with triggers could have been done, if only mysql supported triggers...) > Also let me know how do you define NULL in strings. Not sure if I understand what you mean... to put NULL in a string field: update table set stringfield=NULL; -- Roger --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
