<?xml version="1.0" encoding="UTF-8" ?>
<rss version="2.0">
<channel>
<title><![CDATA[向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除]]></title> 
<link>http://www.jackxiang.com/index.php</link> 
<description><![CDATA[赢在IT，Playin' with IT,Focus on Killer Application,Marketing Meets Technology.]]></description> 
<language>zh-cn</language> 
<copyright><![CDATA[向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除]]></copyright>
<item>
<link>http://www.jackxiang.com/post//</link>
<title><![CDATA[[Mysql技术]几分钟让你走进mysql的门]]></title> 
<author>jack &lt;xdy108@126.com&gt;</author>
<category><![CDATA[WEB2.0]]></category>
<pubDate>Tue, 26 Sep 2006 05:45:36 +0000</pubDate> 
<guid>http://www.jackxiang.com/post//</guid> 
<description>
<![CDATA[ 
	我电脑装上linux才N个月，特别是对rhel 4感觉很好，看过我贴的烂帖子的人，一定看得出是小菜鸟，看到网上很多姐妹对sql有兴趣（也可能是兄弟，但不是说菜鸟），反映不习惯，无从下手，看了半天书，感到很难。就装了个mysql学习一下。<br/>我也没有专门研究过mysql,但由于以前在windows编程中常要用到sql数据库，会一些sql语法。才装上mysql,做了些摸索，行家莫笑。<br/>1.打开mysql:<br/>$mysql<br/>Welcome to the MySQL monitor. Commands end with ; or &#92;g.<br/>Your MySQL connection id is 3 to server version: 4.1.7<br/><br/>Type 'help;' or '&#92;h' for help. Type '&#92;c' to clear the buffer.<br/>2.获取创建数据库及其表的权限：（这里练习，可以不用，后面用到）<br/>mysql> grant all on samp_db.* to paul@localhost identified by "secret"；<br/>Query OK, 0 rows affected (0.10 sec)<br/>3.创建samp_db（示例）数据库<br/><br/>mysql> create database samp_db;<br/>Query OK, 1 row affected (0.06 sec)<br/>4.使samp_db数据库成为当前数据库：<br/>mysql> use samp_db;<br/>Database changed<br/>查看一下：<br/>mysql> select database();<br/>+------------+<br/>&#124; database() &#124;<br/>+------------+<br/>&#124; samp_db &#124;<br/>+------------+<br/>1 row in set (0.00 sec)<br/>5.在samp_db数据库中建立表：<br/>mysql> create table test_tab (last_name varchar(15) not null, first_name varchar (15) not null, suffix varchar(5) null, city varchar(20) not null, state varchar( 2) not null, birth date not null, death date null );<br/>Query OK, 0 rows affected (0.30 sec)<br/>看看表的结构，是否符合要求：<br/>mysql> describe test_tab;<br/>+------------+-------------+------+-----+------------+-------+<br/>&#124; Field &#124; Type &#124; Null &#124; Key &#124; Default &#124; Extra &#124;<br/>+------------+-------------+------+-----+------------+-------+<br/>&#124; last_name &#124; varchar(15) &#124; &#124; &#124; &#124; &#124;<br/>&#124; first_name &#124; varchar(15) &#124; &#124; &#124; &#124; &#124;<br/>&#124; suffix &#124; varchar(5) &#124; YES &#124; &#124; NULL &#124; &#124;<br/>&#124; city &#124; varchar(20) &#124; &#124; &#124; &#124; &#124;<br/>&#124; state &#124; char(2) &#124; &#124; &#124; &#124; &#124;<br/>&#124; birth &#124; date &#124; &#124; &#124; 0000-00-00 &#124; &#124;<br/>&#124; death &#124; date &#124; YES &#124; &#124; NULL &#124; &#124;<br/>+------------+-------------+------+-----+------------+-------+<br/>7 rows in set (0.06 sec)<br/>看看数据库中有没有其它表：<br/>mysql> show tables;<br/>+-------------------+<br/>&#124; Tables_in_samp_db &#124;<br/>+-------------------+<br/>&#124; test_tab &#124;<br/>+-------------------+<br/>1 row in set (0.00 sec)<br/>再看看有哪些数据库；<br/>mysql> show databases;<br/>+----------+<br/>&#124; Database &#124;<br/>+----------+<br/>&#124; mysql &#124;<br/>&#124; samp_db &#124;<br/>&#124; test &#124;<br/>+----------+<br/>3 rows in set (0.00 sec)<br/><br/>6.试着在在表中加入一条记录：<br/>mysql> insert into test_tab values('jinzhi','chen',null,'盐城yancheng','1','196 5.1.16',null); insert into test_tab values('jinzhi','chen',null,'盐城yancheng',<br/>Query OK, 1 row affected (0.32 sec)<br/>看看加入后是否符合要求：<br/>mysql> select * from test_tab<br/>-> ;<br/>+-----------+------------+--------+--------------+-------+------------+-------+<br/>&#124; last_name &#124; first_name &#124; suffix &#124; city &#124; state &#124; birth &#124; death &#124;<br/>+-----------+------------+--------+--------------+-------+------------+-------+<br/>&#124; jinzhi &#124; chen &#124; NULL &#124; 盐城yancheng &#124; 1 &#124; 1965-01-16 &#124; NULL &#124;<br/>+-----------+------------+--------+--------------+-------+------------+-------+<br/>1 row in set (0.06 sec)<br/><br/>mysql><br/>下面就看你的了 
]]>
</description>
</item><item>
<link>http://www.jackxiang.com/post//#blogcomment</link>
<title><![CDATA[[评论] [Mysql技术]几分钟让你走进mysql的门]]></title> 
<author> &lt;user@domain.com&gt;</author>
<category><![CDATA[评论]]></category>
<pubDate>Thu, 01 Jan 1970 00:00:00 +0000</pubDate> 
<guid>http://www.jackxiang.com/post//#blogcomment</guid> 
<description>
<![CDATA[ 
	
]]>
</description>
</item>
</channel>
</rss>