Just stumble upon situation where I need to find out if specific date in a date range.
I’ve try using lower than with greater than operator and use between in second attempt.
Quick mysql shell mode 
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\alam>cd c:\appserv\mysql\bin
C:\AppServ\mysql\bin>mysql -uroot -p
Enter password: *******
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 116
Server version: 5.0.45-community-nt-log MySQL Community Edition (GPL)
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.
mysql> select curdate();
+————+
| curdate() |
+————+
| 2008-02-11 |
+————+
1 row in set (0.00 sec)
mysql> use pendidikan;
Database changed
mysql> select * from stmik_periode_krs where curdate()>=tgl_mulai and curdate()
<=tgl_akhir and aktif=’Y';
+—-+————+————+————+——-+————+————–
+———-+——-+
| id | tgl_mulai | tgl_akhir | petugas | jenis | tgl_buka | tahun_ajaran
| semester | aktif |
+—-+————+————+————+——-+————+————–
+———-+——-+
| 10 | 2008-02-11 | 2008-02-13 | sri_hayati | sp | 2008-01-23 | 2007/2008
| 3 | Y |
+—-+————+————+————+——-+————+————–
+———-+——-+
1 row in set (0.00 sec)
mysql>
mysql> select * from stmik_periode_krs where curdate() between tgl_mulai and tgl
_akhir and aktif=’Y';
+—-+————+————+————+——-+————+————–
+———-+——-+
| id | tgl_mulai | tgl_akhir | petugas | jenis | tgl_buka | tahun_ajaran
| semester | aktif |
+—-+————+————+————+——-+————+————–
+———-+——-+
| 10 | 2008-02-11 | 2008-02-13 | sri_hayati | sp | 2008-01-23 | 2007/2008
| 3 | Y |
+—-+————+————+————+——-+————+————–
+———-+——-+
1 row in set (0.01 sec)
mysql>
Both work well, I just have to adjust my computer clock for trying the result.
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