diff --git a/sources/tech/20140919 Linux FAQs with Answers--How to create a MySQL database from the command line.md b/sources/tech/20140919 Linux FAQs with Answers--How to create a MySQL database from the command line.md deleted file mode 100644 index 5d8e99ce4d..0000000000 --- a/sources/tech/20140919 Linux FAQs with Answers--How to create a MySQL database from the command line.md +++ /dev/null @@ -1,111 +0,0 @@ -[su-kaiyao]翻译中 - -Linux FAQs with Answers--How to create a MySQL database from the command line -================================================================================ -> **Question**: I have a MySQL server up and running somewhere. How can I create and populate a MySQL database from the command line? - -To create a MySQL database from the command line, you can use mysql CLI client. Here is a step-by-step procedure to create and populate a MySQL database using mysql client from the command line. - -### Step One: Install MySQL Client ### - -Of course you need to make sure that MySQL client program is installed. If not, you can install it as follows. - -On Debian, Ubuntu or Linux Mint: - - $ sudo apt-get install mysql-client - -On Fedora, CentOS or RHEL: - - $ sudo yum install mysql - -### Step Two: Log in to a MySQL Server ### - -To begin, first log in to your MySQL server as root with the following command: - - $ mysql -u root -h -p - -Note that to be able to log in to a remote MySQL server, you need to [enable remote access on the server][1]. If you are invoking mysql command on the same host where the MySQL server is running, you can omit "-h " as follows. - - $ mysql -u root -p - -You will be then asked for the password of the MySQL root user. If the authentication succeeds, the MySQL prompt will appear. - -![](https://www.flickr.com/photos/xmodulo/15272971112/) - -### Step Three: Create a MySQL Database ### - -Before you start typing commands at the MySQL prompt, remember that each command must end with a semicolon (otherwise it will not execute). In addition, consider using uppercase letters for commands and lowercase letter for database objects. Note that this is not required but helpful for reading. - -Now, let's create a database named xmodulo_DB: - - mysql> CREATE DATABASE IF NOT EXISTS xmodulo_DB; - -![](https://farm4.staticflickr.com/3864/15086792487_8e2eaedbcd.jpg) - -### Step Four: Create a MySQL Table ### - -For a demonstration purpose, we will create a tabled called posts_tbl where we want to store the following information about posts: - -- Text of article -- Author's first name -- Author's last name -- Whether the post is enabled (visible) or not -- Date when article was posted - -This process is actually performed in two steps: - -First, select the database that we want to use: - - mysql> USE xmodulo_DB; - -Then create a new table in the database: - - mysql> CREATE TABLE 'posts_tbl' ( - 'post_id' INT UNSIGNED NOT NULL AUTO_INCREMENT, - 'content' TEXT, - 'author_FirstName' VARCHAR(100) NOT NULL, - 'author_LastName' VARCHAR(50) DEFAULT NULL , - 'isEnabled' TINYINT(1) NOT NULL DEFAULT 1, - 'date' TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP , - PRIMARY KEY ( 'post_id' ) - ) TYPE = MYISAM; - -![](https://farm4.staticflickr.com/3870/15086654980_39d2d54d72.jpg) - -### Step Five: Create a User Account and Grant Permissions ### - -When it comes to accessing our newly created database and tables, it's a good idea to create a new user account, so it can access that database (and that database only) without full permissions to the whole MySQL server. - -You can create a new user, grant permissions and apply changes in two easy steps as follows: - - mysql> GRANT ALL PRIVILEGES ON xmodulo_DB.* TO 'new_user'@'%' IDENTIFIED BY 'new_password'; - mysql> FLUSH PRIVILEGES; - -where 'new_user' and 'new_password' refer to the new user account name and its password, respectively. This information will be stored in the mysql.user table, and the password will be encrypted. - -### Step Six: Testing ### - -Let's insert one dummy record to the posts_tbl table: - - mysql> USE xmodulo_DB; - mysql> INSERT INTO posts_tbl (content, author_FirstName, author_LastName) - VALUES ('Hi! This is some dummy text.', 'Gabriel', 'Canepa'); - -Then view all the records in posts_tbl table: - - mysql> SELECT * FROM posts_tbl; - -![](https://farm4.staticflickr.com/3896/15086792527_39a987d8bd_z.jpg) - -Note that MySQL automatically inserted the proper default values in the fields where we defined them earlier (e.g., 'isEnabled' and 'date'). - --------------------------------------------------------------------------------- - -via: http://ask.xmodulo.com/create-mysql-database-command-line.html - -译者：[译者ID](https://github.com/译者ID) -校对：[校对者ID](https://github.com/校对者ID) - -本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出 - -[1]:http://xmodulo.com/2012/06/how-to-allow-remote-access-to-mysql.html diff --git a/translated/tech/20140919 Linux FAQs with Answers--How to create a MySQL database from the command line.md b/translated/tech/20140919 Linux FAQs with Answers--How to create a MySQL database from the command line.md new file mode 100644 index 0000000000..f2c7e3186a --- /dev/null +++ b/translated/tech/20140919 Linux FAQs with Answers--How to create a MySQL database from the command line.md @@ -0,0 +1,116 @@ +数据库常见问题答案--如何使用命令行创建一个MySQL数据库 +=== + +> **问题**：在一个某处运行的MySQL服务器上，我该怎样通过命令行创建和安装一个MySQL数据库呢？ + + +为了能通过命令行创建一个MySQL数据库，你可以使用mysql命令行客户端。下面是通过mysql命令行客户端创建和安装MySQL的步骤。 + +### 第一步：安装MySQL客户端 ### + +当然你得确保MySQL客户端已经安装完毕。如果没有的话，可以按照下面的方法。 + +在Debian，Ubuntu 或者 Linux Mint上： + + $ sudo apt-get install mysql-client + +在Fedora，CentOS 或者 RHEL上： + + $ sudo apt-get install mysql + +### 第二步：登陆到MySQL服务器 ### + +首先，你需要使用root用户登陆进你的MySQL数据库，如下： + + $ mysql -u root -h -p + +请注意：为了能登进远程的MySQL服务器，你需要[开启服务器上的远程访问][1]，如果你想调用同一主机上的MySQL服务器，你可以省略 "-h " 参数 + + $ mysql -u root -p + +你将需要输入MySQL服务器的密码，如果认证成功，MySQL提示将会出现。 + +![](https://www.flickr.com/photos/xmodulo/15272971112/) + +### 第三步：创建一个MySQL数据库 ### + +在MySQL提示中输入命令之前，请记住所有的命令都是以分号结束的(否则将不会执行)。另外，考虑输入命令的时候使用大些字母，输入数据库对象使用小写字母。但那不是必须的，只是方便你的阅读。 + +现在，让我们创建一个叫做xmodulo_DB的数据库： + + mysql> CREATE DATABASE IF NOT EXISTS xmodulo_DB; + +![](https://farm4.staticflickr.com/3864/15086792487_8e2eaedbcd.jpg) + +### 第四步：创建一个数据库表 ### + +为了达到演示的目的，我们将会创建一个叫做posts_tbl的表，表里会存储关于文章的如下信息： + +- 文章的标题 +- 作者的第一个名字 +- 作者的最后一个名字 +- 文章可用或者不可用 +- 文章创建的日期 + +这个过程分两步执行： + +首先，选择我们需要使用的数据库： + + mysql> USE xmodulo_DB; + +然后，在数据库中创建新表： + + mysql> CREATE TABLE 'posts_tbl' ( + 'post_id' INT UNSIGNED NOT NULL AUTO_INCREMENT, + 'content' TEXT, + 'author_FirstName' VARCHAR(100) NOT NULL, + 'author_LastName' VARCHAR(50) DEFAULT NULL , + 'isEnabled' TINYINT(1) NOT NULL DEFAULT 1, + 'date' TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP , + PRIMARY KEY ( 'post_id' ) + ) TYPE = MYISAM; + +![](https://farm4.staticflickr.com/3870/15086654980_39d2d54d72.jpg) + +### 第五步：创建一个用户，并授予权限 ### + +当涉及到访问我们新创的数据库和表的时候，创建一个新用户是一个很好的主意。这样做就可以让用户在没有整个MySQL服务器权限的情况下，去访问那个数据库(而且只能是那个数据库) + +你可以创建新用户，授予权限，并且使改变生效： + + mysql> GRANT ALL PRIVILEGES ON xmodulo_DB.* TO 'new_user'@'%' IDENTIFIED BY 'new_password'; + mysql> FLUSH PRIVILEGES; + +'new_user'和'new_password'分别指的是新的用户名和他的密码。这条信息将会被保存在mysql.user表中，而且密码会被加密。 + +### 第六步：测试 ### + +让我们插入一个虚拟的记录到posts_tbl表： + + mysql> USE xmodulo_DB; + mysql> INSERT INTO posts_tbl (content, author_FirstName, author_Las tName) + VALUES ('Hi! This is some dummy text.', 'Gabriel', 'Canepa'); + +然后查看posts_tbl表中的所有记录： + + mysql> SELECT * FROM posts_tbl; + +![](https://farm4.staticflickr.com/3896/15086792527_39a987d8bd_z.jpg) + +注意：MySQL会在我们先前定义的地方自动插入适当的默认值(比如，'isEnabled'和'date')。 + +--- + +via: http://ask.xmodulo.com/create-mysql-database-command-line.html + +译者：[su-kaiyao](https://github.com/su-kaiyao) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linu +x中国](http://linux.cn/) 荣誉推出 + +[1]:http://xmodulo.com/2012/06/how-to-allow-remote-access-to-mysql.html + + + +