放牧的风

.databases  //数据库路径
.tables  //数据库内的表格

CREATE TABLE tableName(id INTEGER NOT NULL primarykey, name varchar(20) NOT NULL, age int, Email varchar(100));

.table tableName  //查看数据库中是否有该表格
.schematableName  //查看该表格对应的各列的配置参数

select * fromtableName  //查看表格内所有内容
select id/(id,age) fromtableName  //只查看某几项的所有值

INSERT INTO tableName VALUES(1, 'zengkai', 22, '[email protected]');  //数据串需要加上单引号

update tableName sete mail='[email protected]' whereid=2;

elect name from tableName where sex=’man’;  //某一元素对应的该元素的值
select name from tableName where age>21 and id=1;  //符合条件的值

delete fromtableName whereid=1;  //删除符合条件的项
delete fromtableName;  //删除全部项

.exit