几个简单的基本的sql语句

说明几个简单的基本的sql语句

　　选择select from table1 where 范围

　　插入insert into table1(field1,field2) values(value1,value2)

　　删除delete from table1 where 范围

　　更新update table1 set field1=value1 where 范围

　　查找select from table1 where field1 like '%value1%' ---like的语法很精妙，查资料!

　　排序select from table1 order by field1,field2 [desc]

　　总数select count as totalcount from table1

　　求和select sum(field1) as sumvalue from table1

　　平均select avg(field1) as avgvalue from table1

　　最大select max(field1) as maxvalue from table1

　　最小select min(field1) as minvalue from table1