用途：指定需返回数据的范围语法： SELECT column_name FROM table_name WHERE column_name BETWEEN value1 AND value2

admin2010-11-26 102

问题用途：
   指定需返回数据的范围
语法：
   SELECT column_name FROM table_name
   WHERE column_name
   BETWEEN value1 AND value2
Order by
用途：
   指定结果集的排序
语法：
   SELECT column-name(s)FROM table-name ORDER BY{order_by_expression[ASC|DESC
14.