Heim >Datenbank >MySQL-Tutorial >Hier finden Sie die MyCat-Datenbank und -Tabelle, die Sie implementieren möchten
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本文使用环境
避免 广告 广告 问题 , 自己 去 打开 Mycat 的 官方 地址 去 复制 下载 地址 , 这里 就 不 提供 了。。。
Die von Kaka verwendete virtuelle Maschine ist Centos7.3. Das JDK, das die Umgebung benötigt, ist bereits verfügbar, daher werde ich kein Tutorial schreiben. Wenn nicht, suchen Sie einfach auf Baidu!
Das Bild unten ist das erfolgreich installierte InstallationspaketDekomprimieren: tar -zxvf Mycat-server-1.6.7.1-release-20200209222254-linux.tar.gz
, nach erfolgreicher Dekomprimierung befindet sich im Verzeichnis ein mycat
-Verzeichnis.
Es muss ein neuer MySQL-Benutzer erstellt werden, um eine Verbindung zu Mycat herzustellen
two , configure MyCat
Hier wird der neue MySQL-Benutzer mycat verwendet. Die verwaltbare logische Bibliothek ist mycat_order, die Erste Zeile: Auf den Namenswert folgt der oben erstellte MySQL-Benutzer
Die zweite Zeile: ist das Passwort des mycat-Benutzers
Die dritte Zeile: ist die Datenbank Diese Datei ändert hauptsächlich zwei Knoten, die mit anderen Datenbanken verbunden sind 在这块的配置咔咔卡了很久,下面这个是咔咔已经配置好的 配置项三:rule.xml 这里是order_id使用mod-long规则这个修改就是你有几个节点就写多少即可 在俩台服务器114.55.103.25和192.168.253.129创建数据库kaka和kaka 分别创建t_order和t_order_detail俩张表 表结构如下 连接: 连接成功就可以看到我们的逻辑库然后添加三个数据 这个时候我们查看一下逻辑库的t_order数据,这里的order_id本应该是从1000开始的,之前咔咔做测试使用了一些。这时我们在来看192.168.253.129和114.55.103.25这俩台数据库的数据分布 「192.168.253.129数据库」这个可以看到进入了俩条数据 「144.55.103.25数据库」 这台数据库只进入了一条数据 其实这一切mycat都已经帮你做好了 比如现在user_id为103的数据分布分俩台数据库上,我们进行查询 还有分页问题,都跟平时一样的 Mycat, das in diesem Artikel verwendet wird, ist auch mein erster Kontakt mit Kaka Es gibt viele Dinge, die ich nicht verstehe. Auch Kaka wird dieses Wissen später nach und nach hinzufügen und ich hoffe, dass alle gemeinsam Fortschritte machen können. Beharrlichkeit beim Lernen, Beharrlichkeit beim Bloggen und Beharrlichkeit beim Teilen sind die Überzeugungen, an denen Kaka seit seiner Karriere immer festgehalten hat. Ich hoffe, dass Kakas Artikel auf Nuoda Internet Ihnen ein wenig helfen können. p>❞
三、数据库信息准备
<span style="display: block; background: url(https://my-wechat.mdnice.com/point.png); height: 30px; width: 100%; background-size: 40px; background-repeat: no-repeat; background-color: #272822; margin-bottom: -7px; border-radius: 5px; background-position: 10px 10px;"></span><code class="hljs" style="overflow-x: auto; padding: 16px; color: #ddd; display: -webkit-box; font-family: Operator Mono, Consolas, Monaco, Menlo, monospace; font-size: 12px; -webkit-overflow-scrolling: touch; letter-spacing: 0px; padding-top: 15px; background: #272822; border-radius: 5px;"><span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">CREATE</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">TABLE</span> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`t_order_detail`</span> (<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`od_id`</span> <span class="hljs-built_in" style="color: #a6e22e; line-height: 26px;">int</span>(<span class="hljs-number" style="line-height: 26px;">11</span>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">NOT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`order_id`</span> <span class="hljs-built_in" style="color: #a6e22e; line-height: 26px;">int</span>(<span class="hljs-number" style="line-height: 26px;">11</span>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`goods_id`</span> <span class="hljs-built_in" style="color: #a6e22e; line-height: 26px;">int</span>(<span class="hljs-number" style="line-height: 26px;">11</span>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`unit_price`</span> <span class="hljs-built_in" style="color: #a6e22e; line-height: 26px;">float</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`qty`</span> <span class="hljs-built_in" style="color: #a6e22e; line-height: 26px;">int</span>(<span class="hljs-number" style="line-height: 26px;">11</span>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> PRIMARY <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">KEY</span> (<span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`od_id`</span>)<br/>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">ENGINE</span>=<span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">InnoDB</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">CHARSET</span>=utf8;<br/><br/><span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">CREATE</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">TABLE</span> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`t_order`</span> (<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`order_id`</span> bagint(<span class="hljs-number" style="line-height: 26px;">20</span>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">NOT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`user_id`</span> <span class="hljs-built_in" style="color: #a6e22e; line-height: 26px;">int</span>(<span class="hljs-number" style="line-height: 26px;">11</span>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`pay_mode`</span> <span class="hljs-built_in" style="color: #a6e22e; line-height: 26px;">tinyint</span>(<span class="hljs-number" style="line-height: 26px;">4</span>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`amount`</span> <span class="hljs-built_in" style="color: #a6e22e; line-height: 26px;">float</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> <span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`order_date`</span> datetime <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-literal" style="color: #f92672; font-weight: bold; line-height: 26px;">NULL</span>,<br/> PRIMARY <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">KEY</span> (<span class="hljs-string" style="color: #a6e22e; line-height: 26px;">`order_id`</span>)<br/>) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">ENGINE</span>=<span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">InnoDB</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">DEFAULT</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">CHARSET</span>=utf8;<br/></code>
四、测试连接并插入数据,查看数据分布状态
mysql -umycat -p -P8066 -h192.168.253.129 --default-auth=mysql_native_password
<span style="display: block; background: url(https://my-wechat.mdnice.com/point.png); height: 30px; width: 100%; background-size: 40px; background-repeat: no-repeat; background-color: #272822; margin-bottom: -7px; border-radius: 5px; background-position: 10px 10px;"></span><code class="hljs" style="overflow-x: auto; padding: 16px; color: #ddd; display: -webkit-box; font-family: Operator Mono, Consolas, Monaco, Menlo, monospace; font-size: 12px; -webkit-overflow-scrolling: touch; letter-spacing: 0px; padding-top: 15px; background: #272822; border-radius: 5px;"><span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">insert</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">into</span> t_order (order_id,user_id,pay_mode,amount) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">values</span> (<span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">next</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">value</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">for</span> MYCATSEQ_ORDER,<span class="hljs-number" style="line-height: 26px;">103</span>,<span class="hljs-number" style="line-height: 26px;">1</span><br/><span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">Query</span> OK, <span class="hljs-number" style="line-height: 26px;">1</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">row</span> affected (<span class="hljs-number" style="line-height: 26px;">0.01</span> sec)<br/><br/><span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">insert</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">into</span> t_order (order_id,user_id,pay_mode,amount) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">values</span> (<span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">next</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">value</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">for</span> MYCATSEQ_ORDER,<span class="hljs-number" style="line-height: 26px;">103</span>,<span class="hljs-number" style="line-height: 26px;">1</span><br/><span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">Query</span> OK, <span class="hljs-number" style="line-height: 26px;">1</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">row</span> affected (<span class="hljs-number" style="line-height: 26px;">0.01</span> sec)<br/><br/><span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">insert</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">into</span> t_order (order_id,user_id,pay_mode,amount) <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">values</span> (<span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">next</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">value</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">for</span> MYCATSEQ_ORDER,<span class="hljs-number" style="line-height: 26px;">103</span>,<span class="hljs-number" style="line-height: 26px;">1</span><br/><span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">Query</span> OK, <span class="hljs-number" style="line-height: 26px;">1</span> <span class="hljs-keyword" style="color: #f92672; font-weight: bold; line-height: 26px;">row</span> affected (<span class="hljs-number" style="line-height: 26px;">0.01</span> sec)<br/></code>
五、分页查询,需要的数据在不同表的查询
6. Zusammenfassung
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Das obige ist der detaillierte Inhalt vonHier finden Sie die MyCat-Datenbank und -Tabelle, die Sie implementieren möchten. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!