{"id":2244,"date":"2023-06-27T15:33:03","date_gmt":"2023-06-27T07:33:03","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2244"},"modified":"2023-06-27T15:33:03","modified_gmt":"2023-06-27T07:33:03","slug":"mysql%e4%b8%ba%e4%bb%80%e4%b9%88%e4%b8%8d%e5%bb%ba%e8%ae%ae%e4%bd%bf%e7%94%a8delete-%e5%88%a0%e9%99%a4%e6%95%b0%e6%8d%ae%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/mysql\/mysql%e4%b8%ba%e4%bb%80%e4%b9%88%e4%b8%8d%e5%bb%ba%e8%ae%ae%e4%bd%bf%e7%94%a8delete-%e5%88%a0%e9%99%a4%e6%95%b0%e6%8d%ae%ef%bc%9f\/","title":{"rendered":"MySQL\u4e3a\u4ec0\u4e48\u4e0d\u5efa\u8bae\u4f7f\u7528DELETE \u5220\u9664\u6570\u636e\uff1f"},"content":{"rendered":"
\n
<\/mp-common-profile><\/section>\n


<\/p>\n

    \n
  • \n
    MySQL\u5220\u9664\u6570\u636e\u7684\u65b9\u5f0f\u90fd\u6709\u54ea\u4e9b\uff1f<\/section>\n<\/li>\n
  • \n
    \u4e3a\u4ec0\u4e48\u4e0d\u5efa\u8bae\u4f7f\u7528DELETE \u5220\u9664\u6570\u636e<\/section>\n<\/li>\n
  • \n
    \u603b\u7ed3<\/section>\n<\/li>\n<\/ul>\n

    \u6e90\u4e8e\u4e00\u4e2a\u8bfb\u8005\u5b9e\u9645\u5de5\u4f5c\u4e2d\u9047\u5230\u7684\u95ee\u9898\uff0c\u8001\u5927\u4e00\u76f4\u5f3a\u8c03\u7ebf\u4e0a\u4e0d\u5141\u8bb8\u7528 delete \u6765\u5220\u9664 Mysql \u6570\u636e\u5e93\u7684\u6570\u636e\uff08\u6709\u4e00\u6b21\u53d1\u98da\u4e86\uff0c\u8bf4\u5982\u679c\u518d\u53d1\u73b0\u8c01\u8fd9\u6837\u64cd\u4f5c\u76f4\u63a5\u5f00\u9664\uff09\u3002\u4e3a\u4ec0\u4e48 MySQL \u4e0d\u5efa\u8bae\u4f7f\u7528 delete \u5220\u9664\u6570\u636e\u5462\uff1f<\/p>\n

    \u8fd9\u5c31\u5f97\u4ece\u4ee5\u4e0b\u51e0\u65b9\u9762\u8bf4\u8d77\uff01\uff01\uff01<\/p>\n

    MySQL \u662f\u4e00\u79cd\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5b83\u7684\u6570\u636e\u5b58\u50a8\u662f\u57fa\u4e8e\u78c1\u76d8\u4e0a\u7684\u6587\u4ef6\u7cfb\u7edf\u5b9e\u73b0\u7684\u3002MySQL \u5c06\u6570\u636e\u5b58\u50a8\u5728\u8868\u4e2d\uff0c\u6bcf\u4e2a\u8868\u7531\u4e00\u7cfb\u5217\u7684\u884c\u548c\u5217\u7ec4\u6210\u3002\u6bcf\u4e00\u884c\u8868\u793a\u4e00\u4e2a\u8bb0\u5f55\uff0c\u6bcf\u4e00\u5217\u8868\u793a\u4e00\u4e2a\u5b57\u6bb5\u3002\u8868\u7684\u7ed3\u6784\u7531\u5176\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u7d22\u5f15\u7b49\u4fe1\u606f\u7ec4\u6210\u3002<\/p>\n

    MySQL \u7684\u6570\u636e\u5b58\u50a8\u91c7\u7528\u4e86\u591a\u79cd\u6280\u672f\u6765\u4f18\u5316\u6027\u80fd\u548c\u5b58\u50a8\u6548\u7387\u3002\u4ee5\u4e0b\u662f MySQL \u6570\u636e\u5b58\u50a8\u7684\u4e00\u4e9b\u5173\u952e\u7279\u6027<\/code>\u3002<\/p>\n

    \u5b58\u50a8\u5f15\u64ce<\/h3>\n

    MySQL \u652f\u6301\u591a\u79cd\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u6bcf\u79cd\u5f15\u64ce\u90fd\u6709\u4e0d\u540c\u7684\u6027\u80fd\u548c\u5b58\u50a8\u7279\u6027\u3002\u5e38\u89c1\u7684\u5b58\u50a8\u5f15\u64ce\u6709 InnoDB\u3001MyISAM\u3001Memory \u7b49\u3002\u4e0d\u540c\u7684\u5b58\u50a8\u5f15\u64ce\u652f\u6301\u4e0d\u540c\u7684\u6570\u636e\u5b58\u50a8\u65b9\u5f0f\uff0c\u5982 B\u6811\u7d22\u5f15\u3001\u54c8\u5e0c\u7d22\u5f15\u3001\u5168\u6587\u7d22\u5f15\u7b49\u3002<\/p>\n

    \u6570\u636e\u9875<\/h3>\n

    MySQL \u4f7f\u7528\u6570\u636e\u9875\u6765\u7ba1\u7406\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u3002\u6570\u636e\u9875\u662f MySQL \u5b58\u50a8\u5f15\u64ce\u4e2d\u6700\u57fa\u672c\u7684\u5b58\u50a8\u5355\u5143\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\u6bcf\u4e2a\u6570\u636e\u9875\u7684\u5927\u5c0f\u4e3a 16KB\u3002\u6570\u636e\u9875\u5305\u542b\u591a\u4e2a\u8bb0\u5f55\uff0c\u6bcf\u4e2a\u8bb0\u5f55\u5bf9\u5e94\u4e00\u884c\u6570\u636e\u3002<\/p>\n

    \u7d22\u5f15<\/h3>\n

    MySQL \u4f7f\u7528\u7d22\u5f15\u6765\u4f18\u5316\u6570\u636e\u7684\u68c0\u7d22\u6548\u7387\u3002\u7d22\u5f15\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u80fd\u591f\u5feb\u901f\u5730\u67e5\u627e\u8868\u4e2d\u7684\u6570\u636e\u3002MySQL \u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u5982 B \u6811\u7d22\u5f15\u3001\u54c8\u5e0c\u7d22\u5f15\u3001\u5168\u6587\u7d22\u5f15\u7b49\u3002B \u6811\u7d22\u5f15\u662f MySQL \u4e2d\u6700\u5e38\u7528\u7684\u7d22\u5f15\u7c7b\u578b\uff0c\u5b83\u80fd\u591f\u5feb\u901f\u5730\u67e5\u627e\u8868\u4e2d\u7684\u6570\u636e\u3002<\/p>\n

    \u4e8b\u52a1<\/h3>\n

    MySQL \u652f\u6301\u4e8b\u52a1\uff0c\u4e8b\u52a1\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u3001\u53ef\u9760\u6027\u548c\u5b89\u5168\u6027\u3002MySQL \u7684\u4e8b\u52a1\u662f\u57fa\u4e8e ACID \u6a21\u578b\u5b9e\u73b0\u7684\uff0c\u5b83\u80fd\u591f\u786e\u4fdd\u6570\u636e\u5728\u4e8b\u52a1\u4e2d\u7684\u64cd\u4f5c\u8981\u4e48\u5168\u90e8\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u56de\u6eda\u3002\u4e8b\u52a1\u7684\u652f\u6301\u4f7f\u5f97 MySQL \u5728\u591a\u7528\u6237\u5e76\u53d1\u8bbf\u95ee\u65f6\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n

    \u603b\u4e4b\uff0cMySQL \u7684\u6570\u636e\u5b58\u50a8\u57fa\u4e8e\u78c1\u76d8\u4e0a\u7684\u6587\u4ef6\u7cfb\u7edf\u5b9e\u73b0\uff0c\u91c7\u7528\u591a\u79cd\u6280\u672f\u6765\u4f18\u5316\u6027\u80fd\u548c\u5b58\u50a8\u6548\u7387\uff0c\u5982\u5b58\u50a8\u5f15\u64ce\u3001\u6570\u636e\u9875\u3001\u7d22\u5f15\u3001\u4e8b\u52a1\u7b49\u3002\u8fd9\u4e9b\u7279\u6027\u4f7f\u5f97 MySQL \u6210\u4e3a\u4e00\u79cd\u9ad8\u6027\u80fd\u3001\u53ef\u9760\u548c\u5b89\u5168\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3002<\/p>\n

    MySQL\u5220\u9664\u6570\u636e\u7684\u65b9\u5f0f\u90fd\u6709\u54ea\u4e9b\uff1f<\/span><\/h2>\n

    \u54b1\u4eec\u5e38\u7528\u7684\u4e09\u79cd\u5220\u9664\u65b9\u5f0f\uff1a\u901a\u8fc7 delete\u3001truncate\u3001drop \u5173\u952e\u5b57\u8fdb\u884c\u5220\u9664\uff1b\u8fd9\u4e09\u79cd\u90fd\u53ef\u4ee5\u7528\u6765\u5220\u9664\u6570\u636e\uff0c\u4f46\u573a\u666f\u4e0d\u540c\u3002<\/p>\n

    \u6267\u884c\u901f\u5ea6<\/strong> \uff1adrop > truncate >> DELETE<\/p>\n

    \u4ece\u539f\u7406\u4e0a\u7406\u89e3<\/h3>\n

    DELETE<\/h4>\n
    <\/span>DELETE from TABLE_NAME where<\/span> xxx
    <\/code><\/pre>\n
    DELETE \u5c5e\u4e8e\u6570\u636e\u5e93DML\u64cd\u4f5c\u8bed\u8a00<\/code>\uff0c\u53ea\u5220\u9664\u6570\u636e\u4e0d\u5220\u9664\u8868\u7684\u7ed3\u6784\uff0c\u4f1a\u8d70\u4e8b\u52a1\uff0c\u6267\u884c\u65f6\u4f1a\u89e6\u53d1trigger\uff1b<\/p>\n
    \u5728 InnoDB \u4e2d\uff0cDELETE\u5176\u5b9e\u5e76\u4e0d\u4f1a\u771f\u7684\u628a\u6570\u636e\u5220\u9664\uff0cmysql \u5b9e\u9645\u4e0a\u53ea\u662f\u7ed9\u5220\u9664\u7684\u6570\u636e\u6253\u4e86\u4e2a\u6807\u8bb0\u4e3a\u5df2\u5220\u9664\uff0c\u56e0\u6b64 delete \u5220\u9664\u8868\u4e2d\u7684\u6570\u636e\u65f6\uff0c\u8868\u6587\u4ef6\u5728\u78c1\u76d8\u4e0a\u6240\u5360\u7a7a\u95f4\u4e0d\u4f1a\u53d8\u5c0f\uff0c\u5b58\u50a8\u7a7a\u95f4\u4e0d\u4f1a\u88ab\u91ca\u653e\uff0c\u53ea\u662f\u628a\u5220\u9664\u7684\u6570\u636e\u884c\u8bbe\u7f6e\u4e3a\u4e0d\u53ef\u89c1\u3002**\u867d\u7136\u672a\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4\uff0c\u4f46\u662f\u4e0b\u6b21\u63d2\u5165\u6570\u636e\u7684\u65f6\u5019\uff0c\u4ecd\u7136\u53ef\u4ee5\u91cd\u7528\u8fd9\u90e8\u5206\u7a7a\u95f4\uff08\u91cd\u7528 \u2192 \u8986\u76d6\uff09\u3002<\/p>\n
    DELETE\u6267\u884c\u65f6\uff0c\u4f1a\u5148\u5c06\u6240\u5220\u9664\u6570\u636e\u7f13\u5b58\u5230rollback segement\u4e2d\uff0c\u4e8b\u52a1commit\u4e4b\u540e\u751f\u6548;<\/p>\n
    delete from table_name<\/code>\u5220\u9664\u8868\u7684\u5168\u90e8\u6570\u636e,\u5bf9\u4e8eMyISAM \u4f1a\u7acb\u523b\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4\uff0cInnoDB \u4e0d\u4f1a\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4;<\/p>\n
    \u5bf9\u4e8edelete from table_name where xxx <\/code>\u5e26\u6761\u4ef6\u7684\u5220\u9664, \u4e0d\u7ba1\u662fInnoDB\u8fd8\u662fMyISAM\u90fd\u4e0d\u4f1a\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4;<\/p>\n
    delete\u64cd\u4f5c\u4ee5\u540e\u4f7f\u7528 optimize table table_name<\/code> \u4f1a\u7acb\u523b\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4\u3002\u4e0d\u7ba1\u662fInnoDB\u8fd8\u662fMyISAM \u3002\u6240\u4ee5\u8981\u60f3\u8fbe\u5230\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4\u7684\u76ee\u7684\uff0cdelete\u4ee5\u540e\u6267\u884coptimize table \u64cd\u4f5c\u3002<\/p>\n
    \u793a\u4f8b\uff1a\u67e5\u770b\u8868\u5360\u7528\u786c\u76d8\u7a7a\u95f4\u5927\u5c0f\u7684SQL\u8bed\u53e5\u5982\u4e0b\uff1a\uff08\u7528M\u505a\u5c55\u793a\u5355\u4f4d\uff0c\u6570\u636e\u5e93\u540d\uff1acsjdemo\uff0c\u8868\u540d\uff1ademo2\uff09<\/p>\n
    <\/span>select<\/span> concat<\/span>(round<\/span>(sum<\/span>(DATA_LENGTH\/1024<\/span>\/1024<\/span>),2<\/span>),'M'<\/span>) as<\/span> table_size 
       from<\/span> information_schema.tables 
          where<\/span> table_schema='csjdemo'<\/span> AND<\/span> table_name='demo2'<\/span>;
    <\/code><\/pre>\n
    \u7136\u540e\u6267\u884c\u7a7a\u95f4\u4f18\u5316\u8bed\u53e5\uff0c\u4ee5\u53ca\u6267\u884c\u540e\u7684\u8868Size\u53d8\u5316\uff1a<\/p>\n
    <\/span>optimize table demo2
    <\/code><\/pre>\n
    \u518d\u770b\u770b\u8fd9\u5f20\u8868\u7684\u5927\u5c0f\uff0c\u5c31\u53ea\u5269\u4e0b\u8868\u7ed3\u6784size\u4e86\u3002<\/p>\n
    delete \u64cd\u4f5c\u662f\u4e00\u884c\u4e00\u884c\u6267\u884c\u5220\u9664\u7684\uff0c\u5e76\u4e14\u540c\u65f6\u5c06\u8be5\u884c\u7684\u7684\u5220\u9664\u64cd\u4f5c\u65e5\u5fd7\u8bb0\u5f55\u5728redo\u548cundo<\/strong> \u8868\u7a7a\u95f4\u4e2d\u4ee5\u4fbf\u8fdb\u884c\u56de\u6eda\uff08rollback)\u548c\u91cd\u505a\u64cd\u4f5c\uff0c\u751f\u6210\u7684\u5927\u91cf\u65e5\u5fd7\u4e5f\u4f1a\u5360\u7528\u78c1\u76d8\u7a7a\u95f4<\/strong> \u3002<\/p>\n
    drop<\/h4>\n
    <\/span>Drop table Tablename
    <\/code><\/pre>\n
    \u5c5e\u4e8e\u6570\u636e\u5e93DDL\u5b9a\u4e49\u8bed\u8a00<\/code>\uff0c\u540cTruncate\uff0c\u6267\u884c\u540e\u7acb\u5373\u751f\u6548\uff0c\u65e0\u6cd5\u627e\u56de<\/strong> \u3002<\/p>\n
    drop table table_name \u7acb\u523b\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4 \uff0c\u4e0d\u7ba1\u662f InnoDB \u548c MyISAM; drop \u8bed\u53e5\u5c06\u5220\u9664\u8868\u7684\u7ed3\u6784\u88ab\u4f9d\u8d56\u7684\u7ea6\u675f(constrain)\u3001\u89e6\u53d1\u5668(trigger)\u3001\u7d22\u5f15(index);  \u4f9d\u8d56\u4e8e\u8be5\u8868\u7684\u5b58\u50a8\u8fc7\u7a0b\/\u51fd\u6570\u5c06\u4fdd\u7559,\u4f46\u662f\u53d8\u4e3a invalid \u72b6\u6001\u3002<\/p>\n
    \u5c0f\u5fc3\u4f7f\u7528 drop \uff0c\u8981\u5220\u8868\u8dd1\u8def\u7684\u5144\u5f1f\uff0c\u8bf7\u5728\u8ba2\u7968\u6210\u529f\u540e\u5728\u6267\u884c\u64cd\u4f5c\uff01<\/p>\n
    \u53ef\u4ee5\u8fd9\u4e48\u7406\u89e3\uff0c\u4e00\u672c\u4e66\uff0cdelete\u662f\u628a\u76ee\u5f55\u6495\u4e86\uff0ctruncate\u662f\u628a\u4e66\u7684\u5185\u5bb9\u6495\u4e0b\u6765\u70e7\u4e86\uff0cdrop\u662f\u628a\u4e66\u70e7\u4e86<\/p>\n
    truncate<\/h4>\n
    \u5c5e\u4e8e\u6570\u636e\u5e93DDL\u5b9a\u4e49\u8bed\u8a00<\/code>\uff0c\u4e0d\u8d70\u4e8b\u52a1<\/strong> \uff0c\u539f\u6570\u636e\u4e0d\u653e\u5230 rollback segment \u4e2d\uff0c\u64cd\u4f5c\u4e0d\u89e6\u53d1 trigger\u3002\u6267\u884c\u540e\u7acb\u5373\u751f\u6548\uff0c\u65e0\u6cd5\u627e\u56de<\/strong> \uff01<\/p>\n
    truncate table table_name \u7acb\u523b\u91ca\u653e\u78c1\u76d8\u7a7a\u95f4 \uff0c\u4e0d\u7ba1\u662f InnoDB\u548cMyISAM \u3002truncate table\u5176\u5b9e\u6709\u70b9\u7c7b\u4f3c\u4e8edrop table \u7136\u540ecreat,\u53ea\u4e0d\u8fc7\u8fd9\u4e2acreate table \u7684\u8fc7\u7a0b\u505a\u4e86\u4f18\u5316\uff0c\u6bd4\u5982\u8868\u7ed3\u6784\u6587\u4ef6\u4e4b\u524d\u5df2\u7ecf\u6709\u4e86\u7b49\u7b49\u3002\u6240\u4ee5\u901f\u5ea6\u4e0a\u5e94\u8be5\u662f\u63a5\u8fd1drop table\u7684\u901f\u5ea6;<\/p>\n
    truncate \u80fd\u591f\u5feb\u901f\u6e05\u7a7a\u4e00\u4e2a\u8868\u3002\u5e76\u4e14\u91cd\u7f6eauto_increment\u7684\u503c\u3002<\/p>\n
    \u4f46\u5bf9\u4e8e\u4e0d\u540c\u7684\u7c7b\u578b\u5b58\u50a8\u5f15\u64ce\u9700\u8981\u6ce8\u610f\u7684\u5730\u65b9\u662f\uff1a<\/p>\n
      \n
    • \n
      \u5bf9\u4e8eMyISAM<\/code>\uff0ctruncate\u4f1a\u91cd\u7f6eauto_increment\uff08\u81ea\u589e\u5e8f\u5217\uff09\u7684\u503c\u4e3a1\u3002\u800cdelete\u540e\u8868\u4ecd\u7136\u4fdd\u6301auto_increment\u3002<\/section>\n<\/li>\n
    • \n
      \u5bf9\u4e8eInnoDB<\/code>\uff0ctruncate\u4f1a\u91cd\u7f6eauto_increment\u7684\u503c\u4e3a1\u3002delete\u540e\u8868\u4ecd\u7136\u4fdd\u6301auto_increment\u3002\u4f46\u662f\u5728\u505adelete\u6574\u4e2a\u8868\u4e4b\u540e\u91cd\u542fMySQL\u7684\u8bdd\uff0c\u5219\u91cd\u542f\u540e\u7684auto_increment\u4f1a\u88ab\u7f6e\u4e3a1\u3002<\/section>\n<\/li>\n
    • \n
      \u4e5f\u5c31\u662f\u8bf4\uff0cInnoDB \u7684\u8868\u672c\u8eab\u662f\u65e0\u6cd5\u6301\u4e45\u4fdd\u5b58auto_increment\u3002delete\u8868\u4e4b\u540e auto_increment\u4ecd\u7136\u4fdd\u5b58\u5728\u5185\u5b58\uff0c\u4f46\u662f\u91cd\u542f\u540e\u5c31\u4e22\u5931\u4e86\uff0c\u53ea\u80fd\u4ece1\u5f00\u59cb\u3002\u5b9e\u8d28\u4e0a\u91cd\u542f\u540e\u7684auto_increment\u4f1a\u4ece SELECT 1+MAX(ai_col) FROM t \u5f00\u59cb\u3002<\/section>\n<\/li>\n<\/ul>\n
      \u5c0f\u5fc3\u4f7f\u7528 truncate\uff0c\u5c24\u5176\u6ca1\u6709\u5907\u4efd\u7684\u65f6\u5019\uff0c\u5982\u679c\u8bef\u5220\u9664\u7ebf\u4e0a\u7684\u8868\uff0c\u8bb0\u5f97\u53ca\u65f6\u8dd1\u8def\u3002<\/p>\n
      \u4e3a\u4ec0\u4e48\u4e0d\u5efa\u8bae\u4f7f\u7528DELETE \u5220\u9664\u6570\u636e<\/span><\/h2>\n
      \u4e86\u89e3\u4e0a\u9762\u7684\u4e00\u4e9b\u539f\u7406\u4e4b\u540e\uff0c\u53ef\u4ee5\u77e5\u9053\uff01<\/p>\n
        \n
      • \n
        \u65e0\u6cd5\u6062\u590d\u6570\u636e<\/section>\n<\/li>\n<\/ul>\n
        \u5728\u4f7f\u7528DELETE\u64cd\u4f5c\u5220\u9664\u6570\u636e\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u4e8b\u5148\u5907\u4efd\u6570\u636e\uff0c\u4e00\u65e6\u8bef\u64cd\u4f5c\u5c31\u4f1a\u5bfc\u81f4\u6570\u636e\u65e0\u6cd5\u6062\u590d\u3002\u56e0\u6b64\uff0c\u5728\u8fdb\u884c\u4efb\u4f55\u6570\u636e\u64cd\u4f5c\u4e4b\u524d\uff0c\u6700\u597d\u5148\u5907\u4efd\u6570\u636e\uff0c\u4ee5\u4fbf\u5728\u51fa\u73b0\u9519\u8bef\u65f6\u53ef\u4ee5\u8f7b\u677e\u5730\u6062\u590d\u6570\u636e\u3002<\/p>\n
          \n
        • \n
          \u5220\u9664\u6570\u636e\u4f1a\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\uff0c\u5f71\u54cd\u67e5\u8be2\u6027\u80fd\u3002<\/section>\n<\/li>\n
        • \n
          \u5220\u9664\u6570\u636e\u4f1a\u5bfc\u81f4\u8868\u7a7a\u95f4\u7684\u6d6a\u8d39\uff0c\u56e0\u4e3a\u5220\u9664\u7684\u6570\u636e\u5e76\u4e0d\u4f1a\u7acb\u5373\u91ca\u653e\uff0c\u800c\u662f\u7559\u5728\u8868\u4e2d\uff0c\u53ea\u662f\u88ab\u6807\u8bb0\u4e3a\u201c\u5df2\u5220\u9664\u201d\u3002<\/section>\n<\/li>\n
        • \n
          \u6570\u636e\u4e0d\u4e00\u81f4<\/section>\n<\/li>\n<\/ul>\n
          \u5982\u679c\u5728\u5220\u9664\u6570\u636e\u65f6\u8868\u4e2d\u5b58\u5728\u5916\u952e\u5173\u8054\uff0c\u4f7f\u7528DELETE\u64cd\u4f5c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5176\u4ed6\u8868\u4e2d\u7684\u6570\u636e\u4e0d\u4e00\u81f4\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e00\u4e2a\u8868\u6709\u4e00\u4e2a\u5916\u952e\uff0c\u6307\u5411\u53e6\u4e00\u4e2a\u8868\u4e2d\u7684\u4e00\u884c\uff0c\u5982\u679c\u4ece\u4e3b\u8868\u4e2d\u5220\u9664\u884c\u800c\u4e0d\u66f4\u65b0\u5916\u952e\u5f15\u7528\uff0c\u5219\u5916\u952e\u5f15\u7528\u5c06\u6210\u4e3a\u65e0\u6548\u5f15\u7528\u3002\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u67e5\u8be2\u65f6\u51fa\u73b0\u9519\u8bef\uff0c\u6216\u8005\u5728\u66f4\u65b0\u65f6\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u3002<\/p>\n
          \u603b\u7ed3<\/span><\/h2>\n
          \u5728\u5de5\u4f5c\u5f53\u4e2d\u6267\u884c\u6570\u636e\u5e93\u5220\u9664\u7684\u65f6\u5019\u4e00\u5b9a\u8981\u614e\u91cd\u518d\u614e\u91cd\uff0c\u5efa\u8bae\u6bcf\u6b21\u8fdb\u884c\u6570\u636e\u5220\u9664\u7684\u4f7f\u7528\u6700\u597d\u6570\u636e\u8868\u7684\u5907\u4efd\u5de5\u4f5c\uff0c\u8fd9\u6837\u5c31\u4f1a\u5927\u5927\u51cf\u5c11\u4f60\u5220\u9664\u8dd1\u8def\u7684\u51e0\u7387\u3002\u5f88\u591a\u65f6\u5019\u4e0d\u8981\u8fc7\u4e8e\u76f8\u4fe1\u81ea\u5df1\u7684\u52a8\u624b\u80fd\u529b\uff0c\u8001\u864e\u8fd8\u6709\u6253\u76f9\u7684\u65f6\u5019\uff0c\u4e07\u4e00\u624b\u6ed1\u4e86\u5462\u3002\u5c3d\u53ef\u80fd\u517b\u6210\u597d\u7684\u6570\u636e\u5e93\u8fd0\u7ef4\u4e60\u60ef\uff0c\u8fd9\u6837\u4f1a\u8ba9\u81ea\u5df1\u5c11\u8dcc\u8ddf\u5934\uff0c\u4f60\u7684\u4e8b\u4e1a\u624d\u4f1a\u66f4\u52a0\u987a\u5229\u3002<\/p>\n
          <\/mp-common-profile><\/section>\n

          <\/p>\n
          <\/mp-style-type><\/p>\n
          \n
          \u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7:                 \u6280\u672f\u8001\u7537\u5b69              <\/p>\n<\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
          MySQL\u5220\u9664\u6570\u636e\u7684\u65b9\u5f0f\u90fd\u6709\u54ea\u4e9b\uff1f \u4e3a\u4ec0\u4e48\u4e0d\u5efa\u8bae\u4f7f\u7528DELETE \u5220\u9664\u6570\u636e \u603b\u7ed3 \u6e90\u4e8e\u4e00\u4e2a\u8bfb\u8005\u5b9e\u9645\u5de5\u4f5c\u4e2d\u9047\u5230\u7684\u95ee\u9898\uff0c\u8001\u5927\u4e00\u76f4\u5f3a\u8c03\u7ebf …<\/p>\n","protected":false},"author":1,"featured_media":2242,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-2244","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql"],"post_thumbnail_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150644965-150x150.jpeg","content_first_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150645481.png","post_medium_image_300":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150644965-300x127.jpeg","post_thumbnail_image_624":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150644965.jpeg","post_frist_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150645481.png","post_medium_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150644965-300x127.jpeg","post_large_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150644965.jpeg","post_full_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150644965.jpeg","post_all_images":[{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150645481.png","id":"image0"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230627150645481.png","id":"image1"}],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"MySQL","post_date":"2023-06-27","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"0","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":357,"next_post_id":2348,"next_post_title":"\u804a\u804a Sharding-JDBC \u5206\u5e93\u5206\u8868\uff08\u4e00\uff09","previous_post_id":2062,"previous_post_title":"SQL\u9ad8\u7ea7\u7bc7\uff5e\u89c6\u56fe\u548c\u4e34\u65f6\u8868","_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/2244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2244"}],"version-history":[{"count":0,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/2244\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media\/2242"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}