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<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>
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<title><![CDATA[InnoDB 相关的问题！]]></title> 
<author>jack &lt;xdy108@126.com&gt;</author>
<category><![CDATA[WEB2.0]]></category>
<pubDate>Mon, 20 Oct 2008 10:32:08 +0000</pubDate> 
<guid>http://www.jackxiang.com/post//</guid> 
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<![CDATA[ 
	建表:<br/><br/><div class="code">CREATE TABLE customer (id INT NOT NULL, PRIMARY KEY (id)) ENGINE=INNODB;</div>ALTER TABLE et ENGINE = INNODB;.<br/>查看引擎状态：<br/><div class="code">show engines;</div><br/>查看表类型（存储引擎）： SHOW TABLE STATUS FROM test; <br/>SHOW variables like &quot;have_%&quot;<br/><br/>用innodb引擎。使用方法是create table xxx()engine=innodb;如果想所有建立的表格都用innodb引擎，可以把“default-storage- engine=INNODB”加到/etc/mysql/my.cnf（位置可能不同）。设完之后就可以用“show engines;”检查是否设置好。不过据说该设置在5.0.22下可能无效。<br/><br/><br/>http://www.geekso.com/post/124/<br/><br/>事务处理：<br/><br/>ySQL 总是启动自动提交你运行的每个 SQL 语句的自动提交(autocommit)模式创建每的新连接。为了使用事务，可以使用 SQL 命令 SET AUTOCOMMIT = 0 关闭自动提交(autocommit)开关，使用 COMMIT 和 ROLLBACK 来提交事务和回滚事务。如果你想保留 autocommit 开关打开，你可以将事务放入 BEGIN 和 COMMIT 或 ROLLBACK之间。<br/><br/>heikki@hundin:~/mysql/client&gt; mysql test<br/><br/><div class="code"> Welcome to the MySQL monitor.&nbsp;&nbsp;Commands end with ; or g.<br/> Your MySQL connection id is 5 to server version: 3.23.50-log<br/> <br/> Type &#039;help;&#039; or &#039;h&#039; for help. Type &#039;c&#039; to clear the buffer.<br/> <br/> mysql&gt; CREATE TABLE CUSTOMER (A INT, B CHAR (20), INDEX (A)) TYPE = InnoDB;<br/> Query OK, 0 rows affected (0.00 sec)<br/> <br/> mysql&gt; BEGIN;<br/> Query OK, 0 rows affected (0.00 sec)<br/> <br/> mysql&gt; INSERT INTO CUSTOMER VALUES (10, &#039;Heikki&#039;);<br/> Query OK, 1 row affected (0.00 sec)<br/> <br/> mysql&gt; COMMIT;<br/> Query OK, 0 rows affected (0.00 sec)<br/> <br/> mysql&gt; SET AUTOCOMMIT=0;<br/> Query OK, 0 rows affected (0.00 sec)<br/> <br/> mysql&gt; INSERT INTO CUSTOMER VALUES (15, &#039;John&#039;);<br/> Query OK, 1 row affected (0.00 sec)<br/> <br/> mysql&gt; ROLLBACK;<br/> Query OK, 0 rows affected (0.00 sec)<br/> <br/> mysql&gt; SELECT * FROM CUSTOMER;<br/> +------+--------+<br/> &#124; A&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#124; B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#124;<br/> +------+--------+<br/> &#124; 10&nbsp;&nbsp;&nbsp;&nbsp; &#124; Heikki &#124;<br/> +------+--------+<br/> 1 row in set (0.00 sec)</div><br/><br/><br/>
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<title><![CDATA[[评论] InnoDB 相关的问题！]]></title> 
<author> &lt;user@domain.com&gt;</author>
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<pubDate>Thu, 01 Jan 1970 00:00:00 +0000</pubDate> 
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