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	<title>红颜丽人SQL语言 &#187; 红颜丽人</title>
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	<description>追求技术就像追求#$！不抛弃，不放弃！</description>
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		<title>SQL通配符查找数据</title>
		<link>http://www.hongyanliren.com/2014m12/22346.html</link>
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		<pubDate>Wed, 03 Dec 2014 12:02:27 +0000</pubDate>
		<dc:creator>Quan</dc:creator>
				<category><![CDATA[数据库技术]]></category>
		<category><![CDATA[SQL语言]]></category>

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		<description><![CDATA[SQL通配符查找数据。%：匹配零个及多个任意字符； _：与任意单字符匹配； []：匹配一个范围； [^]：排除一个范围

Symbol

Meaning

like '5[%]'

5%

like '[_]n'

_n

like '[a-cdf]'

a, b,[......]<p class='read-more'><a href='http://www.hongyanliren.com/2014m12/22346.html'>Read more</a></p>]]></description>
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		<title>常用sql语句汇集</title>
		<link>http://www.hongyanliren.com/2014m11/20933.html</link>
		<comments>http://www.hongyanliren.com/2014m11/20933.html#comments</comments>
		<pubDate>Fri, 28 Nov 2014 16:59:20 +0000</pubDate>
		<dc:creator>Quan</dc:creator>
				<category><![CDATA[数据库技术]]></category>
		<category><![CDATA[SQL语言]]></category>

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		<description><![CDATA[常用sql语句汇集。

--1，SQL Server Split函数

--Author:zc_0101

--说明：

--支持分割符多字节

--使用方法

--Select * FROM DBO.F_SQLSERVER_SPLIT('1203401230105045',[......]<p class='read-more'><a href='http://www.hongyanliren.com/2014m11/20933.html'>Read more</a></p>]]></description>
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		<title>com.microsoft.sqlserver.jdbc.SQLServerException: 到主机 的 TCP/IP 连接失败怎么解决</title>
		<link>http://www.hongyanliren.com/2014m06/8397.html</link>
		<comments>http://www.hongyanliren.com/2014m06/8397.html#comments</comments>
		<pubDate>Tue, 17 Jun 2014 10:52:17 +0000</pubDate>
		<dc:creator>Quan</dc:creator>
				<category><![CDATA[数据库技术]]></category>
		<category><![CDATA[SQL语言]]></category>

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		<description><![CDATA[com.microsoft.sqlserver.jdbc.SQLServerException: 到主机 的 TCP/IP 连接失败怎么解决。

java.net.ConnectException: Connection timed out: connect
at com.microsoft.[......]<p class='read-more'><a href='http://www.hongyanliren.com/2014m06/8397.html'>Read more</a></p>]]></description>
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		<title>sql语句如何按某几列删除表中重复数据</title>
		<link>http://www.hongyanliren.com/2014m06/7646.html</link>
		<comments>http://www.hongyanliren.com/2014m06/7646.html#comments</comments>
		<pubDate>Tue, 03 Jun 2014 17:01:20 +0000</pubDate>
		<dc:creator>Quan</dc:creator>
				<category><![CDATA[数据库技术]]></category>
		<category><![CDATA[SQL语言]]></category>

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		<description><![CDATA[sql语句如何按某几列删除表中重复数据？开始获取了重复列的数据，但不知道怎么在那基础上删除，最后通过下面那个sql多执行几次知道执行结果为0就表示重复数据已经删除了。

delete from warehouse_summary t where t.summary_id in (
select[......]<p class='read-more'><a href='http://www.hongyanliren.com/2014m06/7646.html'>Read more</a></p>]]></description>
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		<title>SQL语句在where字句中使用别名多字段合并查询随机返回有限的（非全部）查询结果实例</title>
		<link>http://www.hongyanliren.com/2014m05/6705.html</link>
		<comments>http://www.hongyanliren.com/2014m05/6705.html#comments</comments>
		<pubDate>Tue, 13 May 2014 05:46:53 +0000</pubDate>
		<dc:creator>Quan</dc:creator>
				<category><![CDATA[数据库技术]]></category>
		<category><![CDATA[SQL语言]]></category>

		<guid isPermaLink="false">http://www.hongyanliren.com/?p=6705</guid>
		<description><![CDATA[SQL语句在where字句中使用别名多字段合并查询随机返回有限的（非全部）查询结果实例。

1.在where字句中使用别名。
//错误！！！！
//直接这样写是不行的，where字句是不认识别名的
select sal as salary, comm as commission
from[......]<p class='read-more'><a href='http://www.hongyanliren.com/2014m05/6705.html'>Read more</a></p>]]></description>
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		<title>Mysql多对多查询、列合并实例命令</title>
		<link>http://www.hongyanliren.com/2014m04/5138.html</link>
		<comments>http://www.hongyanliren.com/2014m04/5138.html#comments</comments>
		<pubDate>Thu, 03 Apr 2014 17:19:56 +0000</pubDate>
		<dc:creator>Quan</dc:creator>
				<category><![CDATA[mysql学习]]></category>
		<category><![CDATA[SQL语言]]></category>

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		<description><![CDATA[Mysql多对多查询、列合并实例命令：

1. mysql联合查询方法一
SELECT md_pictures.picid,md_pictures.sid,md_pictures.filename,md_pictures.comments,md_pictures.browse,
md_sub[......]<p class='read-more'><a href='http://www.hongyanliren.com/2014m04/5138.html'>Read more</a></p>]]></description>
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		<title>sql语句sql命令学习</title>
		<link>http://www.hongyanliren.com/2013m10/2793.html</link>
		<comments>http://www.hongyanliren.com/2013m10/2793.html#comments</comments>
		<pubDate>Tue, 29 Oct 2013 04:12:22 +0000</pubDate>
		<dc:creator>Quan</dc:creator>
				<category><![CDATA[数据库技术]]></category>
		<category><![CDATA[SQL语言]]></category>

		<guid isPermaLink="false">http://www.hongyanliren.com/?p=2793</guid>
		<description><![CDATA[sql语句sql命令学习

1、sql语言包含4个部分：

数据定义语言（DDL），例如：CREATE、DROP、ALTER等语句。

数据操作语言（DML），例如：INSERT、UPDATE、DELETE语句。

数据查询语言（DQL），例如：SELECT语句。

数据控制语言[......]<p class='read-more'><a href='http://www.hongyanliren.com/2013m10/2793.html'>Read more</a></p>]]></description>
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