VC操作数据库的问题

UpdateData(true);
CString insertsql;
CLoginSet m_record;
if(m_record.IsOpen())
{
m_record.Close();
}
insertsql.Format("insert into student values ('4','王锋','昭关')");
m_record.m_pDatabase=&m_database;
m_record.Open(AFX_DB_USE_DEFAULT_TYPE,insertsql);提示我insert有语法错误.但我在查询分析器里面运行这是没问题的,为什么呢?OBDC连的.