sqlite基本使用方法(二)

2015-01-24 01:46:32 · 作者: · 浏览: 10
; 2014006|窦思涡|11 2014003|李彦宏|6 2014004|胡夸风|6 sqlite> select AVG(age) from staff; 6.0 sqlite>
更新表中记录
sqlite> update staff set age=age+10;
sqlite> select * from staff;
2014001|马化腾|13
2014002|马云|14
2014003|李彦宏|16
2014004|胡夸风|16
2014006|窦思涡|21
sqlite> select * from staff where age < 15;
2014001|马化腾|13
2014002|马云|14
sqlite> update staff set age=age+10 where age < 15;
sqlite> select * from staff;
2014001|马化腾|23
2014002|马云|24
2014003|李彦宏|16
2014004|胡夸风|16
2014006|窦思涡|21
sqlite>

删除表中记录
sqlite> select * from staff;
2014001|马化腾|23
2014002|马云|24
2014003|李彦宏|16
2014004|胡夸风|16
2014006|窦思涡|21
2014113|will delete|23
sqlite> delete from staff where NO='2014113';
sqlite> select * from staff;
2014001|马化腾|23
2014002|马云|24
2014003|李彦宏|16
2014004|胡夸风|16
2014006|窦思涡|21
sqlite>