php - 这个 MySQL 语法有什么问题？

Question

INSERT INTO homework_MarcWed30-2011 ('Teacher', 'Class', 'Period', 'Assn') 
                              VALUES ('a', 'a', 'a', 'a')

我收到以下错误:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-2011 (Teacher varchar(30), Class varchar(30), Period varchar(30), Assn varchar(' at line 1

这是怎么回事？

附带说明一下，create table 语句对我不起作用:

mysql_query("CREATE TABLE homework_MarcWed30-2011 (Teacher varchar(30), Class varchar(30), Period varchar(30), Assn varchar(400))","mysql_connect('#####', '#####', '#####')") OR die(mysql_error());

Answer 1

使用

`homework_MarcWed30-2011`   

在表名中使用`来引用列名

INSERT INTO homework_MarcWed30-2011 (`Teacher`, `Class`, `Period`, `Assn`) 
                              VALUES ('a', 'a', 'a', 'a')

An identifier may be quoted or unquoted. If an identifier contains special characters or is a reserved word, you must quote it whenever you refer to it. The set of alphanumeric characters from the current character set, “_”, and “$” are not special.

http://dev.mysql.com/doc/refman/5.0/en/identifiers.html