<ruby id="bdb3f"></ruby>

    <p id="bdb3f"><cite id="bdb3f"></cite></p>

      

      <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
        <p id="bdb3f"><cite id="bdb3f"></cite></p>
          

          <pre id="bdb3f"></pre>
          <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>
          

          <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
          <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>
          

          <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>
                <ruby id="bdb3f"></ruby>
                
    


                
  
                                            
                            
        
                
          ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便！
          廣告
        
                        
                                                                        
  

                

                
    
                
        
                
                            概念：索引是提高mysql查詢效率的數據結構
### 索引本質
MySQL存儲引擎使用索引的方法，類似于讀一本書時如果想查找特定的主題的話，需要先看書的目錄，查找對應的頁碼，翻到指定頁碼查看內容。**即首先在索引中查找對應索引值，然后根據索引記錄查找對應的數據行。**  
MySQL支持多種索引，例如B樹索引、哈希索引、全文索引等，本文重點介紹**B樹索引**

*****
【參考資料】
[https://tech.meituan.com/2014/06/30/mysql-index.html](https://tech.meituan.com/2014/06/30/mysql-index.html)

### Mysql 索引底層數據結構選型
https://zhuanlan.zhihu.com/p/113917726

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







                  <ruby id="bdb3f"></ruby>
                  <p id="bdb3f"><cite id="bdb3f"></cite></p>
                    

                    <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
                      <p id="bdb3f"><cite id="bdb3f"></cite></p>
                        

                        <pre id="bdb3f"></pre>
                        <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>
                        

                        <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
                        <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>
                        

                        <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>
                              <ruby id="bdb3f"></ruby>
                              

哎呀哎呀视频在线观看