sqlite3命令行操作db巩固

创建数据库

C:\Users\test>sqlite3 test.db
SQLite version 3.22.0 2018-01-22 18:45:57
Enter ".help" for usage hints.

查看数据库

sqlite> .databases
main: C:\Users\test\test.db
sqlite>

创建表

sqlite> create table _person (_id integer primary key autoincrement,_name varchar(20),age integer,address text);

插入数据

sqlite> insert into _person(_name,age,address) values("test",22,"xiangy");
sqlite> insert into _person(_name,age,address) values("test1",23,"xiangy1");
sqlite> insert into _person(_name,age,address) values("test2",24,"xiangy2");
sqlite> insert into _person(_name,age,address) values("test3",25,"xiangy3");
sqlite> insert into _person(_name,age,address) values("test4",26,"xiangy4");
sqlite> select * from _person;
1|test|22|xiangy
2|test1|23|xiangy1
3|test2|24|xiangy2
4|test3|25|xiangy3
5|test4|26|xiangy4

更新表

sqlite> update _person set age=38,address="chengd" where _name="test1";
sqlite> select * from _person;
1|test|22|xiangy
2|test1|38|chengd
3|test2|24|xiangy2
4|test3|25|xiangy3
5|test4|26|xiangy4

更新表

sqlite> update _person set age=39,address="chengd2" where _id=2;
sqlite> select * from _person;
1|test|22|xiangy
2|test1|39|chengd2
4|test3|25|xiangy3
5|test4|26|xiangy4

删除数据

sqlite> delete from _person where _id=3;
sqlite> select * from _person;
1|test|22|xiangy
2|test1|38|chengd
4|test3|25|xiangy3
5|test4|26|xiangy4