I have installed WampServer 2.0 with MySQL 5.1.33.
I can do Numeric and String functions like
SELECT ABS(-2)
orSELECT LOWER(\'ASD\'
There is no error message from MySQL with the text "No such function." I just did a grep on the whole source tree of MySQL 5.1, and that string does not occur anywhere (except in one comment).
My thought is that you aren't using MySQL, you're using SQLite. Because I can reproduce that error when I run the SQLite command-line shell:
$ sqlite3
sqlite> select curdate();
Error: no such function: curdate
sqlite> select now();
Error: no such function: now
In SQLite, the function to get the current date is simply date()
:
sqlite> select date();
2010-01-02