--选择: |
select * from table1 where 条件 |
--插入: |
insert into table1(field1,field2) values (value1,value2) |
--删除: |
delete from table1 where 条件 |
--更新: |
update table1 set field1=value1 where 条件 |
--查找匹配: |
select * from table1 where field1 like ’%value1%’ |
--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 |