<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[zyp_java的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/zyp_java</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; zyp_java]]></copyright><item><title><![CDATA[sql之left join、right join、inner join的区别]]></title><link>https://blog.youkuaiyun.com/zyp_java/article/details/82142804</link><guid>https://blog.youkuaiyun.com/zyp_java/article/details/82142804</guid><author>zyp_java</author><pubDate>Tue, 28 Aug 2018 09:50:44 +0800</pubDate><description><![CDATA[ 

left join(左联接) 返回包括左表中的所有记录和右表中联结字段相等的记录
right join(右联接) 返回包括右表中的所有记录和左表中联结字段相等的记录
inner join(等值连接) 只返回两个表中联结字段相等的行

举例如下：
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表A记录如下：
aID　　　　　aNum
1　　　　　a2...]]></description><category></category></item><item><title><![CDATA[Ext.form.ComboBox，Extjs-树 Ext.tree.TreePanel]]></title><link>https://blog.youkuaiyun.com/zyp_java/article/details/80911407</link><guid>https://blog.youkuaiyun.com/zyp_java/article/details/80911407</guid><author>zyp_java</author><pubDate>Wed, 04 Jul 2018 14:14:55 +0800</pubDate><description><![CDATA[﻿﻿Ext.form.ComboBox 属性详解（见注释）及使用方法定义一个ComboBox： Wayfoon.YearComb = new Ext.form.ComboBox({    id:'cbid',    name:'year',//name只是改下拉的名称     hiddenName:'hyear',//提交到后台的input的name     width : 80,    stor...]]></description><category></category></item><item><title><![CDATA[CheckboxSelectionModel]]></title><link>https://blog.youkuaiyun.com/zyp_java/article/details/80909294</link><guid>https://blog.youkuaiyun.com/zyp_java/article/details/80909294</guid><author>zyp_java</author><pubDate>Wed, 04 Jul 2018 11:02:25 +0800</pubDate><description><![CDATA[﻿﻿1.CheckboxSelectionModel简写sm 2.实现sm是否显示后台传入的json对象包含selected属性{root:[	{id:'1',code:'1001',name:'老李',sex:'1',age:'23',selected:false},	{id:'2',code:'1002',name:'懒蛋',sex:'1',age:'25',selected:true}]}要...]]></description><category></category></item><item><title><![CDATA[Oracle 层次查询 connect by]]></title><link>https://blog.youkuaiyun.com/zyp_java/article/details/80909060</link><guid>https://blog.youkuaiyun.com/zyp_java/article/details/80909060</guid><author>zyp_java</author><pubDate>Wed, 04 Jul 2018 10:53:02 +0800</pubDate><description><![CDATA[﻿﻿   oracle 层次查询语法：      SELECT ... FROM           [WHERE condition]                             --过滤某些节点           [ START WITH [nocycle] start_condition]    --定义查询的起点, 可以使用子查询          CONNECT BY [[...]]></description><category></category></item></channel></rss>