sqlite3创建数据库表

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1、创建一个新的数据库：sqlite3 文件名

先建立一个 Db 目录，并在 Db 目录中创建一个 test.db 数据库文件，打开控制台窗口，命令如下：

mkdir Db

cd Db

sqlite3 test.db

2、打开一个已经存在的数据库：sqlite3 已经存在的文件名

创建一个新数据库和打开一个已经存在的数据库命令是一模一样的，如果文件在当前目录下不存在，则新建；如果存在，则打开。

3、导入数据：.read 数据文件

打开记事本，并将下列 SQL 语句复制到记事本中，保存为 test.sql 到上面说到的 Db 目录下，在命令行环境中输入

.read test.sql

即将所有的数据导入到 test.db 数据库中。

BEGIN TRANSACTION;
CREATE TABLE Cars(Id integer PRIMARY KEY, Name text, Cost integer);
INSERT INTO Cars VALUES(1,'Audi',52642);
INSERT INTO Cars VALUES(2,'Mercedes',57127);
INSERT INTO Cars VALUES(3,'Skoda',9000);
INSERT INTO Cars VALUES(4,'Volvo',29000);
INSERT INTO Cars VALUES(5,'Bentley',350000);
INSERT INTO Cars VALUES(6,'Citroen',21000);
INSERT INTO Cars VALUES(7,'Hummer',41400);
INSERT INTO Cars VALUES(8,'Volkswagen',21600);
COMMIT;

BEGIN TRANSACTION;
CREATE TABLE Orders(Id integer PRIMARY KEY, OrderPrice integer CHECK(OrderPrice>0),
Customer text);
INSERT INTO Orders(OrderPrice, Customer) VALUES(1200, 'Williamson');
INSERT INTO Orders(OrderPrice, Customer) VALUES(200, 'Robertson');
INSERT INTO Orders(OrderPrice, Customer) VALUES(40, 'Robertson');
INSERT INTO Orders(OrderPrice, Customer) VALUES(1640, 'Smith');
INSERT INTO Orders(OrderPrice, Customer) VALUES(100, 'Robertson');
INSERT INTO Orders(OrderPrice, Customer) VALUES(50, 'Williamson');
INSERT INTO Orders(OrderPrice, Customer) VALUES(150, 'Smith');
INSERT INTO Orders(OrderPrice, Customer) VALUES(250, 'Smith');
INSERT INTO Orders(OrderPrice, Customer) VALUES(840, 'Brown');
INSERT INTO Orders(OrderPrice, Customer) VALUES(440, 'Black');
INSERT INTO Orders(OrderPrice, Customer) VALUES(20, 'Brown');
COMMIT;

BEGIN TRANSACTION;
CREATE TABLE Friends(Id integer PRIMARY KEY, Name text UNIQUE NOT NULL,
Sex text CHECK(Sex IN ('M', 'F')));
INSERT INTO Friends VALUES(1,'Jane', 'F');
INSERT INTO Friends VALUES(2,'Thomas', 'M');
INSERT INTO Friends VALUES(3,'Franklin', 'M');
INSERT INTO Friends VALUES(4,'Elisabeth', 'F');
INSERT INTO Friends VALUES(5,'Mary', 'F');
INSERT INTO Friends VALUES(6,'Lucy', 'F');
INSERT INTO Friends VALUES(7,'Jack', 'M');
COMMIT;

BEGIN TRANSACTION;
CREATE TABLE Customers(CustomerId integer PRIMARY KEY, Name text);
INSERT INTO Customers(Name) VALUES('Paul Novak');
INSERT INTO Customers(Name) VALUES('Terry Neils');
INSERT INTO Customers(Name) VALUES('Jack Fonda');
INSERT INTO Customers(Name) VALUES('Tom Willis');

CREATE TABLE Reservations(Id integer PRIMARY KEY,
CustomerId integer, Day text);
INSERT INTO Reservations(CustomerId, Day) VALUES(1, '2009-22-11');
INSERT INTO Reservations(CustomerId, Day) VALUES(2, '2009-28-11');
INSERT INTO Reservations(CustomerId, Day) VALUES(2, '2009-29-11');
INSERT INTO Reservations(CustomerId, Day) VALUES(1, '2009-29-11');
INSERT INTO Reservations(CustomerId, Day) VALUES(3, '2009-02-12');
COMMIT;

BEGIN TRANSACTION;
CREATE TABLE Names(Id integer, Name text);
INSERT INTO Names VALUES(1,'Tom');
INSERT INTO Names VALUES(2,'Lucy');
INSERT INTO Names VALUES(3,'Frank');
INSERT INTO Names VALUES(4,'Jane');
INSERT INTO Names VALUES(5,'Robert');
COMMIT;

BEGIN TRANSACTION;
CREATE TABLE Books(Id integer PRIMARY KEY, Title text, Author text,
                   Isbn text default 'not available');
INSERT INTO Books VALUES(1,'War and Peace','Leo Tolstoy','978-0345472403');
INSERT INTO Books VALUES(2,'The Brothers Karamazov',
                         'Fyodor Dostoyevsky','978-0486437910');
INSERT INTO Books VALUES(3,'Crime and Punishment',
                         'Fyodor Dostoyevsky','978-1840224306');
COMMIT;
4、列出所有的数据表： .tables

完成上面所有的工作以后，我们就可以列出所有的数据表了