MairDB 初始数据库与表 (二)

第三部分 插入数据

3.1 格式:

INSERT INTO 表名 (列名, 列名....) VALUES (数据, 数据....)

3.2 实例
插入两条数据

 

MariaDB [study_db]> INSERT INTO books     -> (book_name, publication_date)     -> VALUES     -> ('跟我学MariaDB', NOW()),     -> ('NodeJS', '2016-12-02'),     -> ('MYSQL', '2016-12-01');

3.3 筛选数据

MariaDB [study_db]> SELECT * FROM books; +---------+------------------+------------------+------------------+-------------+ | book_id | book_name        | book_author_name | publication_date | description | +---------+------------------+------------------+------------------+-------------+ |       1 | 跟我学MariaDB    | NULL             | 2016-12-02       | NULL        | |       2 | NodeJS           | NULL             | 2016-12-02       | NULL        | +---------+------------------+------------------+------------------+-------------+ 2 rows in set (0.00 sec)

 

3.4 查看表结构的另一种方法

 

MariaDB [study_db]> SHOW CREATE  TABLE books \G *************************** 1. row ***************************        Table: books Create Table: CREATE TABLE `books` (   `book_id` int(11) NOT NULL AUTO_INCREMENT,   `book_name` varchar(20) DEFAULT NULL,   `book_author_name` varchar(20) DEFAULT NULL,   `publication_date` date DEFAULT NULL,   `description` text,   PRIMARY KEY (`book_id`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 1 row in set (0.00 sec)