急求！！ERROR 1064 (42000): You have an error in your SQL

ERROR 1064(42000) You have an error in your SQL syntax：check the corresponds to your MySQL server version for the right syntax  to use DATABASE  abc
                              USE abc
                              SHOW TABLES' at line 2
这个是什么问题？刚装好Mysql，想建一个数据库尝试一下，就出现这个问题，请各位帮帮忙，弄了一个早上了。我的mysql版本是mysql-5.1.38-win32.msi