{"id":30070,"date":"2022-10-31T22:25:46","date_gmt":"2023-05-08T17:24:40","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8mongodb%e7%8e%a9%e5%bc%84%e5%a4%a7%e6%95%b0%e6%8d%ae\/"},"modified":"2025-08-12T17:23:24","modified_gmt":"2025-08-12T09:23:24","slug":"%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8mongodb%e7%8e%a9%e5%bc%84%e5%a4%a7%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8mongodb%e7%8e%a9%e5%bc%84%e5%a4%a7%e6%95%b0%e6%8d%ae\/","title":{"rendered":"\u5c1d\u8bd5\u4f7f\u7528MongoDB\u73a9\u5f04\u5927\u6570\u636e"},"content":{"rendered":"

\u90a3\u662f\u4ec0\u4e48\uff1f<\/p>\n

\u5173\u4e8eMongoDB<\/p>\n

\u30fbMongoDB\u5c5e\u4e8e\u6240\u8c13\u7684NoSQL\u6570\u636e\u5e93\uff0c\u800c\u4e0d\u662f\u5173\u7cfb\u578b\u6570\u636e\u5e93RDBMS\u3002<\/p><\/blockquote>\n

\u662f\u6307\u5904\u7406\u5927\u6570\u636e\u7684\u90a3\u4e2a\u4eba\u5427\u3002<\/p>\n

\u7528\u7c7b\u4f3c\u4e8eJSON\u7684\u683c\u5f0f\u8868\u8fbe\u88ab\u79f0\u4e3a\u201c\u6587\u6863\u201d\u7684\u7ed3\u6784\u5316\u6570\u636e\uff0c\u5e76\u5c06\u8fd9\u4e9b\u6587\u6863\u96c6\u5408\u4f5c\u4e3a\u201c\u96c6\u5408\u201d\u8fdb\u884c\u7ba1\u7406\u3002<\/p><\/blockquote>\n

\u7b80\u800c\u8a00\u4e4b\uff0c\u8fd9\u662f\u4e00\u4e2a\u5c06\u552f\u4e00\u54c8\u5e0c\u503c\u548cJSON\u7ec4\u5408\u5728\u4e00\u8d77\u5f62\u6210\u7684\u5173\u8054\u6570\u7ec4\u3002<\/p>\n

\u867d\u7136\u65e0\u6cd5\u50cf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e00\u6837\u9ad8\u6548\u5730\u6267\u884c\u590d\u6742\u7684\u8fde\u63a5\u64cd\u4f5c\uff0c\u4f46\u53ef\u4ee5\u5feb\u901f\u5730\u8fdb\u884c\u6570\u636e\u7684\u6dfb\u52a0\u3001\u66f4\u65b0\u3001\u5220\u9664\u548c\u67e5\u8be2\u3002<\/p><\/blockquote>\n

\u592a\u68d2\u4e86\u3002<\/p>\n

Mongo\u8fd9\u4e2a\u540d\u5b57\u6765\u6e90\u4e8e\u82f1\u8bed\u4e2d\u7684\u201chumongous\u201d\uff0c\u610f\u601d\u662f\u201c\u5de8\u5927\u7684\u201d\u3002<\/p><\/blockquote>\n

\u7b11\u4e86\u3002<\/p>\n

\u5173\u4e8e\u5927\u6570\u636e<\/p>\n

\u8fd9\u4e2a\u672f\u8bed\u8868\u793a\u7740\u4e00\u4e2a\u975e\u5e38\u5e9e\u5927\u4e14\u590d\u6742\u7684\u6570\u636e\u96c6\u5408\uff0c\u4ee5\u81f3\u4e8e\u65e0\u6cd5\u4f7f\u7528\u73b0\u6709\u7684\u6570\u636e\u5e93\u7ba1\u7406\u5de5\u5177\u548c\u4f20\u7edf\u7684\u6570\u636e\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u6765\u5904\u7406\u3002<\/p><\/blockquote>\n

\u7b80\u800c\u8a00\u4e4b\uff0c\u6709\u5927\u91cf\u7684\u6570\u636e\u3002<\/p>\n

\u7acb\u5373\u5b89\u88c5<\/p>\n
brew install mongodb\r\n<\/span><\/code><\/pre>\n
\u4e3a\u4e86\u5728\u767b\u5f55\u65f6\u542f\u52a8MongoDB\uff0c\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a
\nln -sfv \/usr\/local\/opt\/mongodb\/*.plist ~\/Library\/LaunchAgents
\n\u7136\u540e\u7acb\u5373\u52a0\u8f7dMongoDB\uff1a
\nlaunchctl load ~\/Library\/LaunchAgents\/homebrew.mxcl.mongodb.plist<\/p><\/blockquote>\n
\u5b89\u88c5\u672c\u4f53\u3002
\n\u8fd8\u8981\u8fdb\u884c\u542f\u52a8\u65f6\u7684\u8bbe\u7f6e\uff0c\u8981\u6ce8\u610f\u54e6\u3002<\/p>\n
ln -sfv \/usr\/local\/opt\/mongodb\/*.plist ~\/Library\/LaunchAgents\r\nlaunchctl load ~\/Library\/LaunchAgents\/homebrew.mxcl.mongodb.plist\r\n<\/span><\/code><\/pre>\n
\u6309\u7167\u88ab\u544a\u77e5\u7684\u65b9\u5f0f\uff0c\u6267\u884c\u5492\u8bed\u3002<\/p>\n
mongo -version\r\n<\/span><\/code><\/pre>\n
MongoDB\u7684shell\u7248\u672c\u4e3a3.2.0\u3002<\/p><\/blockquote>\n
\u5b89\u88c5\u5b8c\u6210\u4e86\u3002\u592a\u68d2\u4e86\uff01<\/p>\n
\u9002\u5f53\u5730\u5c1d\u8bd5\u6d41\u52a8\u6570\u636e\u6839\u636e\u6211\u7684\u8c03\u67e5\uff0c\u4f3c\u4e4e\u53ef\u4ee5\u4f7f\u7528JavaScript\u8f7b\u677e\u5730\u64cd\u4f5cmongo\u3002
\n\u5728\u4e00\u4e2a\u5408\u9002\u7684\u4f4d\u7f6e\u521b\u5efa\u4e00\u4e2ajs\u6587\u4ef6\uff0c\u9996\u5148\u5c1d\u8bd5\u63d2\u5165\u4e00\u4e9b\u65e0\u5173\u7d27\u8981\u7684\u6570\u636e\u3002<\/p>\n
cd\r\nmkdir mongo\r\nvi create.js\r\n<\/span><\/code><\/pre>\n
\u8fd9\u6837\u505a\u3002<\/p>\n
for<\/span> (<\/span>var<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> 100<\/span>;<\/span> ++<\/span>i<\/span>)<\/span> {<\/span>\r\n  db<\/span>.<\/span>test<\/span>.<\/span>save<\/span>({<\/span>\r\n    hoge<\/span> :<\/span> \"<\/span>hoge<\/span>\"<\/span> +<\/span> i<\/span>\r\n  });<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u8bf7\u968f\u4fbf\u5199\u4e00\u4e2a\u4e0e\u201cinsert\u5206\u201d\u76f8\u5f53\u7684\u5185\u5bb9\u3002<\/p>\n
mongo --quiet localhost\/test create.js\r\n<\/span><\/code><\/pre>\n
\u5728MongoDB\u4e2d\u63d2\u5165\u8fd9\u4e2a\u4e1c\u897f\u3002\u53ea\u6709\u5927\u7ea6100\u4e2a\u6761\u76ee\uff0c\u6240\u4ee5\u4f1a\u77ac\u95f4\u5b8c\u6210\u3002<\/p>\n
mongoDB\u4e0a\u3067\u898b\u3066\u307f\u308b<\/p>\n
mongo\r\n<\/span><\/code><\/pre>\n
mongo\u306b\u30a2\u30af\u30bb\u30b9\u3002<\/p>\n
db.test.find()\r\n<\/code><\/pre>\n
{ “_id” : ObjectId(“56a3111fcaf1a738f31cfce7”), “hoge” : “hoge0” }
\n{ “_id” : ObjectId(“56a3111fcaf1a738f31cfce8”), “hoge” : “hoge1” }
\n{ “_id” : ObjectId(“56a3111fcaf1a738f31cfce9”), “hoge” : “hoge2″ }
\n…<\/p>\n
\uff08”_id” : ObjectId(“56a3111fcaf1a738f31cfce7”), “hoge” : “hoge0″\uff09
\n\uff08”_id” : ObjectId(“56a3111fcaf1a738f31cfce8”), “hoge” : “hoge1″\uff09
\n\uff08”_id” : ObjectId(“56a3111fcaf1a738f31cfce9”), “hoge” : “hoge2″\uff09
\n…<\/p><\/blockquote>\n
\u54e6\uff01\uff01\u8fdb\u6765\u4e86\uff01
\n\u4f46\u662f\u5982\u679c\u662f\u8fd9\u79cd\u6570\u636e\uff0c\u6ca1\u6709\u4ec0\u4e48\u53ef\u4ee5\u64cd\u4f5c\u7684\uff0c\u6240\u4ee5\u5c31\u968f\u4fbf\u60f3\u8c61\u8d77\u6765\u73a9\u5427\u3002<\/p>\n
db.test.drop()\r\n<\/code><\/pre>\n
\u8fd9\u6b21\u505a\u7684\u4e1c\u897f\uff0c\u7531\u4e8e\u4e0d\u518d\u4f7f\u7528\uff0c\u5c31\u5220\u6389\u5427\u3002<\/p>\n
\u9002\u5f53\u7684\u6a21\u62df\u548c\u6570\u636e\u8bbe\u8ba1<\/p>\n
\u6a21\u62df(\u5e7b\u60f3)\u6211\u53ef\u601c\u7684\u6211\uff0c\u88ab\u8981\u6c42\u5bf9\u67d0\u4e2a\u795e\u79d8\u516c\u53f8\u7684\u8d2d\u4e70\u5386\u53f2\u6570\u636e\u8fdb\u884c\u8fc7\u53bb\u4e94\u5e74\u7684\u6c47\u603b\u548c\u8c03\u67e5\u3002
\n\u542c\u8bf4\u8fd9\u5bb6\u516c\u53f8\u7684\u7528\u6237\u5927\u7ea6\u53ea\u67091000\u4eba\u5de6\u53f3\uff0c\u4f46\u65e5\u5fd7\u8bb0\u5f55\u5374\u8fbe\u5230\u4e86\u5927\u7ea61000\u4e07\u6761\u3002
\n\u8fd9\u4e9b\u865a\u6784\u4e16\u754c\u7684\u5c45\u6c11\u771f\u662f\u5404\u79cd\u602a\u5f02\u3002<\/p>\n
\u6211\u7f16\u5199\u4e86\u4e00\u4e2a\u6839\u636e\u5984\u60f3\u521b\u5efa\u65e5\u5fd7\u6570\u636e\u7684\u811a\u672c\u3002<\/p>\n
const<\/span> LOGS<\/span> =<\/span> 10000000<\/span>;<\/span>\r\nconst<\/span> MAX_USER_ID<\/span> =<\/span> 1000<\/span>;<\/span>\r\nconst<\/span> UNIXTIME_YEAR<\/span> =<\/span> 31536000<\/span>;<\/span>\r\nconst<\/span> MAX_PURCHASE_PRICE<\/span> =<\/span> 10000<\/span>;<\/span>\r\n\r\nfunction<\/span> getRandomNumber<\/span>(<\/span>max<\/span>)<\/span> {<\/span>\r\n    return<\/span> Math<\/span>.<\/span>floor<\/span>(<\/span>Math<\/span>.<\/span>random<\/span>()<\/span> *<\/span> (<\/span>max<\/span> +<\/span> 1<\/span>));<\/span>\r\n}<\/span>\r\n\r\nvar<\/span> date<\/span> =<\/span> new<\/span> Date<\/span>();<\/span>\r\nfunction<\/span> getRandomUnixTime<\/span>(<\/span>offset<\/span>)<\/span> {<\/span>\r\n    return<\/span> Math<\/span>.<\/span>floor<\/span>(<\/span>date<\/span>.<\/span>getTime<\/span>()<\/span> \/<\/span> 1000<\/span>)<\/span> -<\/span> getRandomNumber<\/span>(<\/span>offset<\/span>);<\/span>\r\n}<\/span>\r\n\r\nfor<\/span> (<\/span>var<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> LOGS<\/span>;<\/span> ++<\/span>i<\/span>)<\/span> {<\/span>\r\n    db<\/span>.<\/span>purchaseLog<\/span>.<\/span>save<\/span>({<\/span>\r\n        user_id<\/span>        :<\/span> getRandomNumber<\/span>(<\/span>MAX_USER_ID<\/span>),<\/span>\r\n        purchase_price<\/span> :<\/span> getRandomNumber<\/span>(<\/span>MAX_PURCHASE_PRICE<\/span>),<\/span>\r\n        purchase_at<\/span>    :<\/span> getRandomUnixTime<\/span>(<\/span>UNIXTIME_YEAR<\/span> *<\/span> 5<\/span>),<\/span>\r\n    });<\/span> \r\n}<\/span>\r\n<\/code><\/pre>\n
\u6211\u8ba4\u4e3a\u4e0d\u9700\u8981\u5bf9\u4ee3\u7801\u8fdb\u884c\u89e3\u91ca\u3002
\n\u6b63\u5982\u6211\u4e4b\u524d\u6240\u8ff0\u7684\u60f3\u6cd5\u3002<\/p>\n
mongo --quiet localhost\/test create.js\r\n<\/span><\/code><\/pre>\n
\u56e0\u4e3a\u4e4b\u524d\u53ea\u6709\u5927\u7ea6100\u4e2a\u6570\u636e\uff0c\u6240\u4ee5\u80fd\u591f\u4e00\u4e0b\u5b50\u5904\u7406\u5b8c\u6bd5\u3002
\n\u4f46\u8fd9\u6b21\u67091000\u4e07\u4e2a\u6570\u636e\uff0c\u867d\u7136\u6bd4\u5173\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff08RDBMS\uff09\u5feb\uff0c\u4f46\u8fd8\u662f\u9700\u8981\u76f8\u5e94\u7684\u65f6\u95f4\u3002
\n\u5e0c\u671b\u80fd\u591f\u5feb\u70b9\u7ed3\u675f\u3002<\/p>\n
\u51c6\u5907\u5f04\u7684\u4e8b\u60c5\u3002\u6210\u529f\u63d2\u5165\u4e861\u5343\u4e07\u6761\u6570\u636e\uff0c\u6ca1\u6709\u53d1\u751f\u4efb\u4f55\u5d29\u6e83\u60c5\u51b5\u3002\u987a\u4fbf\u8bf4\u4e00\u4e0b\uff0c\u6211\u7684\u82f9\u679c\u7535\u8111\uff084G\u5185\u5b58\uff09\u82b1\u4e861\u5c0f\u65f67\u520623\u79d2\u7684\u65f6\u95f4\u3002<\/p>\n
\u6211\u4f1a\u7acb\u5373\u67e5\u770b\u5df2\u7ecf\u5236\u4f5c\u597d\u7684\u6570\u636e\u3002<\/p>\n
db.test.find()\r\n<\/code><\/pre>\n
\u672c\u5730 0.000GB
\n\u6d4b\u8bd5 0.404GB<\/p><\/blockquote>\n
\u5373\u4f7f\u653e\u5165\u4e861000\u4e07\u6761\u6570\u636e\uff0cJSON\u6587\u4ef6\u672c\u8eab\u7684\u5927\u5c0f\u4e5f\u5f88\u5c0f\uff0c\u5927\u7ea6\u4e3a400MB\u5de6\u53f3\u3002<\/p>\n
db.test.find()\r\n<\/code><\/pre>\n
{ “_id” : ObjectId(“56a31a2d201cdb2f439ca4ae”), “user_id” : 655, “purchase_price” : 9357, “purchase_at” : 1438883196 }
\n{ “_id” : ObjectId(“56a31a2e201cdb2f439ca4af”), “user_id” : 816, “purchase_price” : 6915, “purchase_at” : 1380445364 }
\n{ “_id” : ObjectId(“56a31a2e201cdb2f439ca4b0”), “user_id” : 851, “purchase_price” : 4786, “purchase_at” : 1382838307 }<\/p>\n
{ “_id” : ObjectId(“56a31a2d201cdb2f439ca4ae”), “\u7528\u6237ID” : 655, “\u8d2d\u4e70\u4ef7\u683c” : 9357, “\u8d2d\u4e70\u65f6\u95f4” : 1438883196 }
\n{ “_id” : ObjectId(“56a31a2e201cdb2f439ca4af”), “\u7528\u6237ID” : 816, “\u8d2d\u4e70\u4ef7\u683c” : 6915, “\u8d2d\u4e70\u65f6\u95f4” : 1380445364 }
\n{ “_id” : ObjectId(“56a31a2e201cdb2f439ca4b0”), “\u7528\u6237ID” : 851, “\u8d2d\u4e70\u4ef7\u683c” : 4786, “\u8d2d\u4e70\u65f6\u95f4” : 1382838307 }
\n…<\/p><\/blockquote>\n
\u6211\u786e\u8ba4\u4e86\u4e00\u4e0b\u6570\u636e\uff0c\u5982\u9884\u671f\u7684\u90a3\u6837\u3002
\n\u867d\u7136\u53ef\u4ee5\u7ee7\u7eed\u5904\u7406\u8fd9\u6837\uff0c\u4f46\u6709\u70b9\u9ebb\u70e6\uff0c\u6240\u4ee5\u6211\u4f1a\u5199\u4e2a\u5305\u88c5\u5668\u3002<\/p>\n
\u968f\u610f\u5730\u51c6\u5907\u9002\u7528\u4e8e\u5f04\u7684JavaScript\u3002<\/p>\n
var<\/span> results<\/span> =<\/span> db<\/span>.<\/span>purchaseLog<\/span>.<\/span>find<\/span>({<\/span>user_id<\/span>:<\/span>100<\/span>});<\/span>\r\n\r\n\/\/  suck<\/span>\r\nfunction<\/span> formatDate<\/span>(<\/span>unixtime<\/span>)<\/span> {<\/span>\r\n    var<\/span> date<\/span> =<\/span> new<\/span> Date<\/span>(<\/span>unixtime<\/span> *<\/span> 1000<\/span>);<\/span>\r\n    date<\/span>.<\/span>setTime<\/span>(<\/span>date<\/span>.<\/span>getTime<\/span>()<\/span> +<\/span> (<\/span>60<\/span> *<\/span> 60<\/span> *<\/span> 1000<\/span>));<\/span>\r\n    var<\/span> zeroPadding<\/span> =<\/span> function<\/span>(<\/span>num<\/span>)<\/span> {<\/span>\r\n        return<\/span> (<\/span>\"<\/span>0<\/span>\"<\/span> +<\/span> num<\/span>).<\/span>slice<\/span>(<\/span>-<\/span>2<\/span>);<\/span>\r\n    }<\/span>\r\n    var<\/span> year<\/span> =<\/span> date<\/span>.<\/span>getFullYear<\/span>();<\/span>\r\n    var<\/span> month<\/span> =<\/span> zeroPadding<\/span>(<\/span>date<\/span>.<\/span>getMonth<\/span>()<\/span> +<\/span> 1<\/span>);<\/span>\r\n    var<\/span> day<\/span> =<\/span> zeroPadding<\/span>(<\/span>date<\/span>.<\/span>getDate<\/span>());<\/span>\r\n    var<\/span> hour<\/span> =<\/span> zeroPadding<\/span>(<\/span>date<\/span>.<\/span>getHours<\/span>());<\/span>\r\n    var<\/span> min<\/span> =<\/span> zeroPadding<\/span>(<\/span>date<\/span>.<\/span>getMinutes<\/span>());<\/span>\r\n    var<\/span> sec<\/span> =<\/span> zeroPadding<\/span>(<\/span>date<\/span>.<\/span>getSeconds<\/span>());<\/span>\r\n    return<\/span> year<\/span> +<\/span> \"<\/span>-<\/span>\"<\/span> +<\/span> month<\/span> +<\/span> \"<\/span>-<\/span>\"<\/span> +<\/span> day<\/span> +<\/span> \"<\/span> \"<\/span> +<\/span> hour<\/span> +<\/span> \"<\/span>:<\/span>\"<\/span> +<\/span> min<\/span> +<\/span> \"<\/span>:<\/span>\"<\/span> +<\/span> sec<\/span>;<\/span>\r\n}<\/span>\r\n\r\nvar<\/span> counter<\/span> =<\/span> 0<\/span>;<\/span>\r\nresults<\/span>.<\/span>forEach<\/span>(<\/span>function<\/span>(<\/span>result<\/span>)<\/span> {<\/span>\r\n    ++<\/span>counter<\/span>;<\/span>\r\n    print<\/span>(<\/span>\"<\/span>id: <\/span>\"<\/span> +<\/span> result<\/span>.<\/span>user_id<\/span> +<\/span> \"<\/span>\\t\\t<\/span>\"<\/span> +<\/span> \"<\/span>price: <\/span>\"<\/span> +<\/span> result<\/span>.<\/span>purchase_price<\/span> +<\/span> \"<\/span>\\t<\/span>\"<\/span> +<\/span> \"<\/span>date: <\/span>\"<\/span> +<\/span> formatDate<\/span>(<\/span>result<\/span>.<\/span>purchase_at<\/span>));<\/span>\r\n});<\/span>\r\nprint<\/span>(<\/span>counter<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u5927\u4e8b\u306a\u6240\u306f\u3001\u4e00\u756a\u4e0a\u306e\u884c\u3060\u3051\u3067\u3059\u3002
\ndb.purchaseLog.find(…) \u306e\u6240\u304c\u3001SQL\u306e\u30af\u30a8\u30ea\u90e8\u5206\u3067\u3059\u3002
\n\u30b5\u30f3\u30d7\u30eb\u3067\u3001\u5358\u306buser_id\u304c100\u756a\u306e\u4eba\u3092\u62bd\u51fa\u3057\u3066\u307f\u307e\u3057\u305f\u3002
\n\u5f8c\u306f\u8868\u793a\u306b\u5fc5\u8981\u306a\u51e6\u7406\u3092\u66f8\u3044\u305f\u3060\u3051\u3067\u3059\u3002<\/p>\n
\u6ce8\u610f\u70b9\u3068\u3057\u3066\u306f\u3001\u30c7\u30fc\u30bf\u306e\u53d6\u5f97\u6761\u4ef6\u306f\u3001\u7279\u6b8a\u306a\u5834\u5408\u3092\u9664\u3044\u3066find()\u90e8\u5206\u3067\u53d6\u5f97\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u4e0b\u3055\u3044\u3002
\n\u3044\u304f\u3089\u65e9\u304f\u3066\u3082forEach\u90e8\u5206\u3067\u51e6\u7406\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u843d\u3061\u307e\u3059\u3002<\/p>\n
\u540e\u6765\uff0cJavaScript\u7684\u65e5\u671f\u64cd\u4f5c\u771f\u7684\u5f88\u70e6\u4eba\u3002<\/p>\n
\u5b9e\u9645\u8fd0\u884c<\/p>\n
mongo --quiet localhost\/test find.js\r\n<\/span><\/code><\/pre>\n
\u7f16\u53f7\uff1a100 \u4ef7\u683c\uff1a9617 \u65e5\u671f\uff1a2012\u5e7408\u670820\u65e5 16:42:24
\n\u7f16\u53f7\uff1a100 \u4ef7\u683c\uff1a5410 \u65e5\u671f\uff1a2014\u5e7412\u670811\u65e5 17:48:45
\n\u7f16\u53f7\uff1a100 \u4ef7\u683c\uff1a1506 \u65e5\u671f\uff1a2011\u5e7405\u670830\u65e5 11:18:03
\n…<\/p><\/blockquote>\n
\u5904\u7406\u7ed3\u679c\u51fa\u6765\u7684\u65f6\u95f4\u5927\u7ea6\u53ea\u9700\u4e09\u79d2\uff0c\u771f\u662f\u8fc5\u901f\uff0c\u901f\u5ea6\u592a\u5feb\u4e86\u3002
\n\u8981\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u5904\u7406\u7684\u8bdd\uff0c\u53ef\u80fd\u9700\u8981\u8d85\u8fc7\u4e00\u5206\u949f\u7684\u65f6\u95f4\u5427\u3002
\n\u8bd5\u7740\u6539\u53d8\u4e00\u4e9b\u6761\u4ef6\u8fdb\u884c\u8c03\u6574\uff0c\u5c31\u4f1a\u53d1\u73b0\u65e0\u8bba\u600e\u6837\u90fd\u975e\u5e38\u8fc5\u6377\u3002<\/p>\n
\u603b\u7ed3<\/p>\n
\u6bd4\u6211\u60f3\u8c61\u7684\u8981\u5feb\u5f0410,000,000\u4ef6\u7684\u6570\u636e\u65f6\uff0c\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u8ba9\u6211\u611f\u5230\u60ca\u8bb6\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u6ca1\u6709\u88ab\u5f3a\u5236\u7b49\u5f8510\u79d2\u4ee5\u4e0a\u624d\u6267\u884cJavaScript\u3002<\/p>\n
\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff08RDBMS\uff09\u7ed9\u6211\u7559\u4e0b\u4e86\u201c\u4e3b\u6570\u636e\u5148\u751f\u201d\u7684\u5370\u8c61\uff0c\u800cNoSQL\u5219\u7ed9\u6211\u7559\u4e0b\u4e86\u201c\u4e8b\u52a1\u6570\u636e\u5927\u54e5\u201d\u7684\u5370\u8c61\u3002<\/p>\n
\u4e00\u822c\u7684\u306b\u30d3\u30c3\u30af\u30c7\u30fc\u30bf\u3068\u8a00\u308f\u308c\u308b\u3001\u81a8\u5927\u306a\u30c7\u30fc\u30bf\u3092\u6271\u3046\u4e8b\u306b\u8208\u5473\u3092\u6301\u3063\u305f\u65b9\u306f
\n\u4e00\u5ea6\u5f04\u3063\u3066\u307f\u3066\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n
\u4e16\u754c\u5c06\u4f1a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n
\u987a\u4fbf\u63d0\u4e00\u53e5<\/p>\n
db<\/span>.<\/span>purchaseLog<\/span>.<\/span>aggregate<\/span>([<\/span>\r\n    {<\/span> $group<\/span>:<\/span> {<\/span> _id<\/span>:<\/span> \"<\/span>$user_id<\/span>\"<\/span>,<\/span> total<\/span>:<\/span> {<\/span> $sum<\/span>:<\/span> \"<\/span>$purchase_price<\/span>\"<\/span> }}},<\/span>\r\n    {<\/span> $sort<\/span>:<\/span>  {<\/span> total<\/span>:<\/span> 1<\/span>}}<\/span>\r\n]).<\/span>forEach<\/span>(<\/span>function<\/span>(<\/span>result<\/span>)<\/span> {<\/span>\r\n    print<\/span>(<\/span>\"<\/span>id: <\/span>\"<\/span> +<\/span> result<\/span>.<\/span>_id<\/span> +<\/span> \"<\/span>\\t\\t<\/span>\"<\/span> +<\/span> \"<\/span>totalPrice: <\/span>\"<\/span> +<\/span> result<\/span>.<\/span>total<\/span>);<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
…\u7f16\u53f7\uff1a795 \u4ef7\u683c\uff1a51749038<\/p><\/blockquote>\n
\u5728\u8fc7\u53bb\u7684\u4e94\u5e74\u4e2d\uff0c\u6700\u5e38\u4f7f\u7528\u7684\u4eba\u3002
\n\u5f53\u6761\u4ef6\u53d8\u5f97\u590d\u6742\u65f6\uff0c\u5d4c\u5957\u5c31\u53d8\u5f97\u4e0d\u592a\u6613\u8bfb\u4e86\u3002\u6211\u60f3\u7528yml\u8fdb\u884c\u7f16\u5199\u3002<\/p>\n
\u8fd9\u6bb5\u4ee3\u7801\u901a\u8fc7\u6309\u7167id\u8fdb\u884c\u5206\u7ec4\u5e76\u8ba1\u7b97\u6bcf\u4e2a\u4eba\u7684\u603b\u91d1\u989d\u540e\u8fdb\u884c\u6392\u5e8f\uff0c\u4f46\u662f\u8fd0\u884c\u901f\u5ea6\u4e3a14\u79d2\u3002
\n\u54c7\u54e6\uff01\uff01<\/p>\n
\u7ed3\u675f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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