MySql常用sql语句

增加:

insert into table (fid1,fid2,...) values(v1,v2)

insert into table values(v1,v2)

insert into table set fid1=v1,fid2=v2,..

查询:

select fid1,fid2,.. from table

select *from table

select count(*) from table  //统计条数
  sum(fid) //求和
  avg(fid) //求平均值
  max(fid) //最大值
  min(fid)  //最小值

select *from table where 条件  :条件查询

select *from table where like %v%  :模糊查询%表示匹配任意字符任意次数

select *from table where not like %v%  :模糊查询

select *from table where fid in (v1,v2) :(效率低)

select *from table where group by fid : 查询不重复项(把某个字段重复项删除)

select *from table where order by fid [asc(正序)/desc(倒序)]:排序

select *from table limit start,num: 从start位开始，取num条记录

改动:

update table set fid=v1,fid=v2 [where][group][order][limit]

删除:

delete from table [where][group][order][limit]