mysql 建表语句

修改id为自动增长： alter table book b_ISBN int(11) auto_increment;

  自动增长要加的：auto_increment

基本的sql语句：

1. 选择：select * from table where 范围

2.  插入：insert into table(field1,field2) values(value1,value2)
3.  删除：delete from table where 范围
4.  更新：update table set field1=value1 where 范围
5.  查找：select * from table where field1 like ’%value1%’
6.  排序：select * from table order by field1,field2 [desc]
7. 修改id为自动增长 alter table book b_ISBN int(11) auto_increment
8. 总数：select count as totalcount from table
9. 求和：select sum(field1) as sumvalue from table
10. 平均：select avg(field1) as avgvalue from table
11. 最大：select max(field1) as maxvalue from table
12. 最小：select min(field1) as minvalue from table