摘要： 1. 处理日期型数据Select * From Subject Where PubTime>=#01/01/2005#2. Access中以“*”代替了标准SQL中的“%”。3. “_”代表单一字符Select * From Users Where Name Like '_ _'4. Having子句允许为每个组指定条件，跟在Group By子句后面。Select UserName,Count(*... 阅读全文