{"id":29902,"date":"2023-09-12T12:25:21","date_gmt":"2023-07-16T03:36:47","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/mongodb%e6%9f%a5%e8%af%a2%e7%ad%89%e5%90%84%e7%a7%8d%e4%b8%9c%e8%a5%bf\/"},"modified":"2025-08-12T16:29:35","modified_gmt":"2025-08-12T08:29:35","slug":"mongodb%e6%9f%a5%e8%af%a2%e7%ad%89%e5%90%84%e7%a7%8d%e4%b8%9c%e8%a5%bf","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/mongodb%e6%9f%a5%e8%af%a2%e7%ad%89%e5%90%84%e7%a7%8d%e4%b8%9c%e8%a5%bf\/","title":{"rendered":"MongoDB\u67e5\u8be2\u7b49\u5404\u79cd\u4e1c\u897f"},"content":{"rendered":"

\u6211\u4eec\u5728\u5b9e\u9645\u4e1a\u52a1\u4e2d\u4f7f\u7528MongoDB\u4f5c\u4e3aNoRDB\u548c\u6587\u6863\u6570\u636e\u5b58\u50a8\u3002\u5728\u5b9e\u73b0\u3001\u8c03\u67e5\u548c\u8fc1\u79fb\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u521b\u5efa\u5404\u79cdMongoDB\u67e5\u8be2\u5e76\u8fdb\u884c\u5e38\u7528\u64cd\u4f5c\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u57fa\u672c\u67e5\u8be2\u64cd\u4f5c\u7684\u5907\u5fd8\u5f55\u3002<\/p>\n

1. \u6570\u636e\u7ed3\u6784<\/p>\n
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3000db<\/span>\r\n\uff0b\u30fc\u30fc\u30b3\u30ec\u30af\u30b7\u30e7\u30f3<\/span> collection<\/span>\r\n\uff5c\u3000\u3000\u3000\uff0b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/span> document<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000<\/span>{<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000\u3000<\/span>\"_id\"<\/span> :<\/span> ObjectId(<\/span>\"54bc6d910cf29e7da446d9ef\"<\/span>)<\/span>,<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000\u3000<\/span>\"\u5909\u6570\u540d\"<\/span> :<\/span> \u5024<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000\u3000\u3000\u3000\u30fb<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000\u3000\u3000\u3000\u30fb<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000<\/span>}<\/span>\r\n\uff5c\u3000\u3000\u3000\uff0b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/span> document<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000<\/span>{<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000\u3000<\/span>\"_id\"<\/span> :<\/span> ObjectId(<\/span>\"54bc6d910cf29e7da446d9ed\"<\/span>)<\/span>,<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000\u3000\u3000\u3000\u30fb<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000\u3000\u3000\u3000\u30fb<\/span>\r\n\uff5c\u3000\u3000\u3000\uff5c\u3000\u3000<\/span>}<\/span>\r\n\uff5c\u3000\u3000\u3000\u3000\u30fb<\/span>\r\n\uff5c\u3000\u3000\u3000\u3000\u30fb<\/span>\r\n\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3000db<\/span>\r\n\uff0b\u30fc\u30fc\u30b3\u30ec\u30af\u30b7\u30e7\u30f3<\/span> collection<\/span>\r\n\uff5c\u3000\u3000\u3000\uff0b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/span> document<\/span>\r\n\uff5c\u3000\u3000\u3000\uff0b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/span> document<\/span>\r\n\uff5c\u3000\u3000\u30fb<\/span>\r\n\uff5c\u3000\u3000\u30fb<\/span>\r\n<\/code><\/pre>\n
2 \u63d2\u5165<\/p>\n
    \u5358\u6570\u306e\u633f\u5165<\/ul>\n
    \u53ef\u4ee5\u76f4\u63a5\u4fdd\u5b58json\u683c\u5f0f\u7684\u6587\u6863\u3002(\u4f3c\u4e4e\u6700\u5927\u9650\u5236\u4e3a16\u5146\u5b57\u8282\/\u6587\u6863)<\/p>\n
    $<\/span>><\/span> db<\/span>.<\/span>color<\/span>.<\/span>insert<\/span>(<\/span>\r\n{<\/span>\r\n\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>black<\/span>\"<\/span> ,<\/span>\r\n\"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u9ed2<\/span>\"<\/span> ,<\/span>\r\n\"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#000000<\/span>\"<\/span>,<\/span>\r\n\"<\/span>r<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\r\n\"<\/span>g<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\r\n\"<\/span>b<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\r\n}<\/span>\r\n)<\/span>\r\n<\/code><\/pre>\n
      \u8907\u6570\u306e\u633f\u5165<\/ul>\n
      $<\/span>><\/span> db<\/span>.<\/span>color<\/span>.<\/span>insert<\/span>([<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>black<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u9ed2<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#000000<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 0<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 0<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>gray<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u7070<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#808080<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 128<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 128<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 128<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>silver<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u9280<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#C0C0C0<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 192<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 192<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 192<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>white<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u767d<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#FFFFFF<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 255<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 255<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 255<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>blue<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u9752<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#0000FF<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 0<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 128<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>navy<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u30cd\u30a4\u30d3\u30fc<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#000080<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 0<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 128<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>teal<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u304b\u3082\u306e\u306f<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#008080<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 128<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 128<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>green<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span> \u7dd1<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#008000<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 128<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 0<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>lime<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u30e9\u30a4\u30e0<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#00FF00<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 256<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 0<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>aqua<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u6c34<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#00FFFF<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 256<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 256<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>yellow<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u9ec4<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#FFFF00<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 255<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 256<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 0<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>red<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span> \u8d64<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#FF0000<\/span>\"<\/span>,<\/span>r<\/span> :<\/span> 255<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 0<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 0<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>fuchsia<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u30d5\u30af\u30b7\u30a2<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#FF00FF<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 255<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 0<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 256<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>olive<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u30aa\u30ea\u30fc\u30d6<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#808000<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 128<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 128<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 0<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>purple<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u7d2b<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#800080<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 128<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 0<\/span> ,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 128<\/span>},<\/span>\r\n{<\/span>\"<\/span>name<\/span>\"<\/span> :<\/span> \"<\/span>maroon<\/span>\"<\/span> \"<\/span>nameJpn<\/span>\"<\/span> :<\/span> \"<\/span>\u30de\u30eb\u30fc\u30f3<\/span>\"<\/span>,<\/span> \"<\/span>hexCode<\/span>\"<\/span> :<\/span> \"<\/span>#800000<\/span>\"<\/span>,<\/span>\"<\/span>r<\/span>\"<\/span> :<\/span> 128<\/span>,<\/span>\"<\/span>g<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\"<\/span>b<\/span>\"<\/span> :<\/span> 0<\/span>}<\/span>\r\n])<\/span>\r\n<\/code><\/pre>\n
      \u627e\u5230
      \n\u5728`find`\u51fd\u6570\u7684\u62ec\u53f7\u4e2d\u586b\u5199\u641c\u7d22\u6761\u4ef6\uff0c\u5982`db.targetCollection.find({“value”:”999″})`\u3002<\/p>\n
      \u9636\u5c42\u8868\u793a\u7684\u503c\u53ea\u9700\u4e00\u4e2a\u9009\u9879\uff0c\u8bf7\u7528\u4e2d\u6587\u5bf9\u4ee5\u4e0b\u5185\u5bb9\u8fdb\u884c\u91ca\u4e49\uff1a<\/p>\n
      \u6307\u5b9a body \u5c42\u6b21\u7ed3\u6784\u4e2d\u7684 height \u5c5e\u6027\u3002
      \n$> db.helthcheck.find( { “body.height”: 150 } )<\/p>\n
      \u6307\u5b9a\u7b2c\u4e09\u6b21\u6d4b\u91cf\u7684 body \u5c42\u6b21\u7ed3\u6784\u4e2d\u7684 height \u5c5e\u6027\u3002
      \n$> db.helthcheck.find( { “body.2.height”: 150 } )<\/p>\n
      \u5728\u4e2d\u6587\u4e2d\u5bf9\u4ee5\u4e0b\u5185\u5bb9\u8fdb\u884c\u8f6c\u8ff0\uff0c\u53ea\u9700\u63d0\u4f9b\u4e00\u79cd\u9009\u62e9\uff1a\u6570\u503c\u8bc4\u4f30\uff08= != < > <= >=\uff09<\/p>\n
      \n
      \u6f14\u7b97\u5b50MongoDB\u6982\u8981\u30b5\u30f3\u30d7\u30ebvalue = \u5024:\u7b49\u3057\u3044{ value:1000 }value < \u5024$lt\u53f3\u8fba\u3088\u308a\u5c0f\u3055\u3044{ value:{$lt:1000} }value <= \u5024$lte\u53f3\u8fba\u4ee5\u4e0b{ value:{$lte:1000} }value > \u5024$gt\u53f3\u8fba\u3088\u308a\u5927\u304d\u3044{ value:{$gt:1000} }value >= \u5024$gte\u53f3\u8fba\u4ee5\u4e0a{ value:{$gte:1000} }value != \u5024$ne\u7b49\u3057\u304f\u306a\u3044{ value:{$ne:1000} }<\/p>\n
      \u6761\u4ef6\u8fde\u7ed3<\/p>\n
      \n
      \u6f14\u7b97MongoDBAND, \u3064\u306a\u304e\u3082\u3057\u304f\u306f$andOR$or<\/p>\n
      $<\/span>><\/span> db<\/span>.<\/span>client<\/span>.<\/span>find<\/span>(<\/span> {<\/span>\"<\/span>lastName<\/span>\"<\/span>:<\/span>\"<\/span>\u592a\u90ce<\/span>\"<\/span>,<\/span>\"<\/span>zip<\/span>\"<\/span>:<\/span>\"<\/span>910-3099<\/span>\"<\/span>}<\/span>\r\n<\/code><\/pre>\n
      $<\/span>><\/span> db<\/span>.<\/span>client<\/span>.<\/span>find<\/span>(<\/span> $or<\/span>:<\/span> [{<\/span> age<\/span>:<\/span> {<\/span> $lt<\/span>:<\/span> 18<\/span> }<\/span> },{<\/span> age<\/span>:<\/span> {<\/span> $gte<\/span>:<\/span> 65<\/span> }<\/span> }]<\/span> })<\/span>\r\n<\/code><\/pre>\n
      $<\/span>><\/span> db<\/span>.<\/span>client<\/span>.<\/span>find<\/span>(<\/span> {<\/span>\r\n      $and<\/span> :<\/span> [<\/span>\r\n               {<\/span> \r\n                 $or<\/span> :<\/span> [<\/span> \r\n                         {<\/span>\"<\/span>firstName<\/span>\"<\/span> :<\/span> \"<\/span>\u4f50\u85e4<\/span>\"<\/span>},<\/span>\r\n                         {<\/span>\"<\/span>lastName<\/span>\"<\/span> :<\/span> \"<\/span>\u592a\u90ce<\/span>\"<\/span>}<\/span>\r\n                       ]<\/span>\r\n               },<\/span>\r\n               {<\/span> \r\n                 \"<\/span>Phone<\/span>\"<\/span>:<\/span>\"<\/span>03-1234-5678<\/span>\"<\/span>\r\n               }<\/span>\r\n             ]<\/span>\r\n})<\/span>\r\n<\/code><\/pre>\n
      \u5728\u7ed9\u5b9a\u7684\u53e5\u5b50\u4e2d\u591a\u4e2a\u503c\u5339\u914d\u3002\u5728\u4e2d\u6587\u4e2d\u4ef7\u503c\u4e00\u6761\u683c\u5f0f\u5316\u7684\u53e5\u5b50\uff0c\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff1a
      \n$> db.targetCollection.find( { “clientId”: { $in: [ “1234”, “3454”, “4567”] } } )<\/p>\n
      $> db.targetCollection.find({ “clientId”: { $in: [ “1234”, “3454”, “4567”] } })\u3002<\/p>\n
      \u5b58\u5728\u4e0e\u5426\u7684\u4ef7\u503c$> db.targetCollection.find({ “createDate”: { $exists: false } })<\/p>\n
      $> db.targetCollection.find({ “createDate”: { $exists: false } })<\/p>\n
      \u72ec\u4e00\u65e0\u4e8c\u7684\u5728\u4e2d\u56fd\u4eba\u7684\u6bcd\u8bed\u4e2d\uff0c\u5c06\u4ee5\u4e0b\u5185\u5bb9\u8fdb\u884c\u91ca\u4e49\uff0c\u4ec5\u9700\u8981\u4e00\u79cd\u9009\u62e9\uff1a
      \n$> db.targetCollection.distinct(“distinctKey”, “createDate”:{$exists:false}})<\/p>\n
      $> \u5728db.targetCollection\u4e2d\u4ee5”createDate”:{$exists:false}}\u4f5c\u4e3a\u6761\u4ef6\u67e5\u8be2\uff0c\u8fd4\u56de”distinctKey”\u7684\u552f\u4e00\u503c\u3002<\/p>\n
      ObjectId\u7684\u5339\u914d$> db.targetCollection.find({“_id”: {“$oid”: “34917234623847612984”}}}) \u53ef\u4ee5\u8868\u8fbe\u4e3a
      \n$> db.targetCollection.find({“_id”: ObjectId(“34917234623847612984”)}})\u3002<\/p>\n
      \u65f6\u95f4\u7684\u6bd4\u8f83 (Time comparison)\u63d0\u53d6\u65e5\u671f<\/p>\n
      \u4ece\u76ee\u6807\u96c6\u5408\u4e2d\u67e5\u627e\u65e5\u671f\u8303\u56f4\u5728\u4e1c\u4eac\u6807\u51c6\u65f6\u95f4+9\u65f6\u533a\u7684\u65e5\u671f\u8303\u56f4\u5185\u7684\u6570\u636e\u3002<\/p>\n
      \u6587\u5b57\u4e32\u5339\u914d\uff08\u7c7b\u4f3c\uff09\u4ece\u6570\u636e\u5e93\u4e2d\u63d0\u53d6\u5e26\u6709”camera”\u7684\u5546\u54c1\u3002
      \n$> db.targetCollection.find({ “name” : \/camera\/ })<\/p>\n
      \u4ec5\u63d0\u53d6\u4ee5”camera”\u5f00\u5934\u7684\u5546\u54c1\u3002
      \n$> db.targetCollection.find({ “name” : \/^camera\/ })<\/p>\n
      \u8fbe\u5230\u7684\u6570\u91cf\u67e5\u8be2\u76ee\u6807\u96c6\u5408\u4e2d”value”\u5b57\u6bb5\u4e3a”999″\u7684\u6570\u636e\u6570\u91cf\u3002<\/p>\n
      \u6392\u5e8f1: \u5347\u5e8f\uff0c-1\uff1a\u964d\u5e8f
      \n$> db.targetCollection.find().sort({‘value1’:1, ‘value2’:-1})<\/p>\n
      \u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u3001\u5e73\u5747\u503c\u3001\u603b\u548c<\/p>\n
      $<\/span>><\/span> db<\/span>.<\/span>product<\/span>.<\/span>aggregate<\/span>([<\/span>\r\n    {<\/span>\r\n      $group<\/span>:<\/span> {<\/span>\r\n        _id<\/span>:<\/span> \"<\/span>$kind<\/span>\"<\/span>,<\/span>\r\n        total<\/span>:<\/span> {<\/span> $sum<\/span>:<\/span> \"<\/span>$price<\/span>\"<\/span> }<\/span>\r\n      }<\/span>\r\n    }<\/span>\r\n])<\/span>\r\n<\/code><\/pre>\n
      $<\/span>><\/span> db<\/span>.<\/span>product<\/span>.<\/span>aggregate<\/span>([<\/span> \r\n    {<\/span> \"<\/span>$group<\/span>\"<\/span>:<\/span> {<\/span> \r\n        \"<\/span>_id<\/span>\"<\/span>:<\/span> null<\/span>,<\/span>\r\n        \"<\/span>max<\/span>\"<\/span>:<\/span> {<\/span> $max<\/span>:<\/span> \"<\/span>$price<\/span>\"<\/span> },<\/span> \r\n        \"<\/span>min<\/span>\"<\/span>:<\/span> {<\/span> $min<\/span>:<\/span> \"<\/span>$price<\/span>\"<\/span> }<\/span> \r\n    }}<\/span>\r\n])<\/span>\r\n<\/code><\/pre>\n
      $<\/span>><\/span> db<\/span>.<\/span>product<\/span>.<\/span>aggregate<\/span>\uff08<\/span>[<\/span>\r\n    {<\/span> \"<\/span>$group<\/span>\"<\/span>:<\/span> {<\/span> \r\n        \"<\/span>_id<\/span>\"<\/span>:<\/span> null<\/span>,<\/span>\r\n        \"<\/span>avg<\/span>\"<\/span>:<\/span> {<\/span> $avg<\/span>:<\/span> \"<\/span>$price<\/span>\"<\/span> }<\/span> \r\n    }}<\/span>\r\n])<\/span>\r\n<\/code><\/pre>\n
      4 \u66f4\u65b0
      \n\u66f4\u65b0\u5373\u66f4\u65b0\u4e00\u4e9b\u65b0\u7684\u4fe1\u606f\u6216\u8005\u5185\u5bb9\u3002<\/p>\n
      \u66f4\u65b0\u67d0\u4e00\u90e8\u5206\u5185\u5bb9$> db.client.update( { “Name”: “aoki” }, { $set: { “age”: 67 } },false,false)
      \nupdate\u64cd\u4f5c\u7684\u6700\u540e\u4e24\u4e2a\u6807\u5fd7\u7684\u542b\u4e49
      \n\u6700\u540e\u7b2c\u4e8c\u4e2a\u6807\u5fd7…false\u8868\u793aupsert\uff08\u5982\u679c\u8bb0\u5f55\u4e0d\u5b58\u5728\uff0c\u5219\u63d2\u5165\uff1b\u5b58\u5728\u5219\u66f4\u65b0\uff09\uff0c\u9ed8\u8ba4\u503c\u4e3afalse
      \n\u6700\u540e\u4e00\u4e2a\u6807\u5fd7…….true\u8868\u793amulti\uff08\u6279\u91cf\u66f4\u65b0\u591a\u4e2a\u7b26\u5408\u6761\u4ef6\u7684\u8bb0\u5f55\uff09<\/p>\n
      \u66f4\u65b0\u5168\u90e8$> db.client.update({}, { $set: { “targetflag” : “true” } }, false, true)<\/p>\n
      \u66f4\u65b0db.client\u7684\u6240\u6709\u6587\u6863\uff0c\u5c06”targetflag”\u5b57\u6bb5\u7684\u503c\u8bbe\u4e3a”true”\uff0c\u53ea\u66f4\u65b0\u4e00\u6761\u8bb0\u5f55\uff0c\u4e14\u5141\u8bb8\u63d2\u5165\u65b0\u6587\u6863\u3002<\/p>\n
      \u66f4\u65b0\u6570\u7ec4\u628a18\u5c81\u6210\u5e74\u4eba\u53ef\u4ee5\u8fdb\u884c\u9009\u4e3e\u8bbe\u4e3a\u771f\u7684\u4e00\u4e2a\u793a\u4f8b\uff1a
      \n$> db.client.update({“clientinfo.year”:{“$gte”:18}},{$set:{“clientinfo.$.senkyo”:”true”}},false,true)<\/p>\n
      \u66f4\u6539\u5b57\u6bb5\u540d\u79f0$> db.client.update({}, { $rename : { “oldName” : “newName” } });
      \n\u3010Chinese\u3011$> db.client.update({}, { $rename : { “oldName” : “newName” } });<\/p>\n
      \u5220\u9664<\/p>\n
      \u5220\u9664\u7269\u4f53\u8bf7\u6ce8\u610f\uff0c\u5982\u679c\u6ca1\u6709\u6dfb\u52a0\u6761\u4ef6\uff0c\u5219\u4f1a\u5220\u9664\u5168\u90e8\u5185\u5bb9\u3002<\/p>\n
      \u522a\u9664\u90e8\u5206\u6211\u60f3\u5220\u9664\u96c6\u5408\u4e2d\u7684\u4e00\u4e2a\u5730\u65b9\u3002
      \n$> db.client.update({“Name”: “aoki”}, {$unset: {“age”: 1}})
      \n\u5220\u9664\u6240\u6709\u7279\u5b9a\u5b57\u6bb5\u3002
      \n$> db.client.update({}, {$unset: {“targetDeletefield”: 1}}, false, true)<\/p>\n
      \u5220\u9664\u96c6\u5408\u5220\u9664\u6570\u636e\u5e93\u4e2d\u7684\u96c6\u5408\u3002<\/p>\n
      \u5220\u9664\u6570\u636e\u5e93\u4f7f\u7528\u6570\u636e\u5e93\u540d
      \n\u5220\u9664\u6570\u636e\u5e93<\/p>\n
      6 \u5176\u4ed6<\/p>\n
      \u66f4\u540d\u66f4\u6539\u96c6\u5408\u540d\u79f0\uff1adb.oldCollection.renameCollection(‘newCollection’)\u3002<\/p>\n
      \u8bf7\u590d\u5236\u6570\u636e\u5e93\u590d\u5236
      \n$> db.copyDatabase(‘\u6e90\u6570\u636e\u5e93’, ‘\u76ee\u6807\u6570\u636e\u5e93’)<\/p>\n
      \u5c06\u96c6\u5408\u62f7\u8d1d\u5230\u65b0\u96c6\u5408
      \n$> db.oldCollection.find().forEach(function (x) {db.newCollection.save(x)})<\/p>\n
      \u521b\u5efa\u7d22\u5f15$> db.infomation.createIndex( { “createDate”: -1, “userId”: 1, “printType”: 1} )
      \n-1\u8868\u793a\u6309\u7167\u5012\u5e8f\u6392\u5217\uff0c1\u8868\u793a\u6309\u7167\u5347\u5e8f\u6392\u5217<\/p>\n
      \u5982\u679c\u4e0d\u6307\u5b9a\u6761\u4ef6\uff0c\u5219\u5220\u9664\u6240\u6709\u7d22\u5f15\u3002
      \n\u522a\u9664
      \n$> db.infomation.dropIndex({ “createDate”: -1, “userId”: 1, “printType”: 1})
      \n\u5982\u679c\u6c92\u6709\u689d\u4ef6\u6307\u5b9a\uff0c\u5c07\u522a\u9664\u6240\u6709\u7d22\u5f15\u3002<\/p>\n
      \u6267\u884c\u8ba1\u5212 (Sh\u00ed
      \n\u52a0\u4e0a explain()<\/p>\n
      $<\/span>><\/span> db<\/span>.<\/span>collection<\/span>.<\/span>find<\/span>(<\/span>\"<\/span>clientId<\/span>\"<\/span>:<\/span>\"<\/span>1735<\/span>\"<\/span>).<\/span>explain<\/span>()<\/span>\r\n{<\/span>\r\n    \"<\/span>cursor<\/span>\"<\/span> :<\/span> \"<\/span>BtreeCursor clientId_1_reportType_1<\/span>\"<\/span>,<\/span>\r\n    \"<\/span>isMultiKey<\/span>\"<\/span> :<\/span> false<\/span>,<\/span>\r\n    \"<\/span>n<\/span>\"<\/span> :<\/span> 7<\/span>,<\/span>\r\n    \"<\/span>nscannedObjects<\/span>\"<\/span> :<\/span> 7<\/span>,<\/span>\r\n    \"<\/span>nscanned<\/span>\"<\/span> :<\/span> 7<\/span>,<\/span>\r\n    \"<\/span>nscannedObjectsAllPlans<\/span>\"<\/span> :<\/span> 7<\/span>,<\/span>\r\n    \"<\/span>nscannedAllPlans<\/span>\"<\/span> :<\/span> 7<\/span>,<\/span>\r\n    \"<\/span>scanAndOrder<\/span>\"<\/span> :<\/span> false<\/span>,<\/span>\r\n    \"<\/span>indexOnly<\/span>\"<\/span> :<\/span> false<\/span>,<\/span>\r\n    \"<\/span>nYields<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\r\n    \"<\/span>nChunkSkips<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\r\n    \"<\/span>millis<\/span>\"<\/span> :<\/span> 0<\/span>,<\/span>\r\n    \"<\/span>indexBounds<\/span>\"<\/span> :<\/span> {<\/span>\r\n        \"<\/span>clientId<\/span>\"<\/span> :<\/span> [<\/span> \r\n            [<\/span> \r\n                \"<\/span>1735<\/span>\"<\/span>,<\/span> \r\n                \"<\/span>1735<\/span>\"<\/span>\r\n            ]<\/span>\r\n        ],<\/span>\r\n        \"<\/span>reportType<\/span>\"<\/span> :<\/span> [<\/span> \r\n            [<\/span> \r\n                {<\/span>\r\n                    \"<\/span>$minElement<\/span>\"<\/span> :<\/span> 1<\/span>\r\n                },<\/span> \r\n                {<\/span>\r\n                    \"<\/span>$maxElement<\/span>\"<\/span> :<\/span> 1<\/span>\r\n                }<\/span>\r\n            ]<\/span>\r\n        ]<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
      “cursor” : “BtreeCursor clientId_1_reportType_1″\u3000\u3000\u53ef\u4ee5\u770b\u51fa\u6b63\u5728\u4f7f\u7528clientId_1_reportType_1\u7d22\u5f15
      \n“nscanned” : 7\u3000\u3000\u3000\u3000 \u3000\u3000\u626b\u63cf\u4e867\u4e2a
      \n“nscannedObjects” : 7\u3000\u3000\u3000\u76f4\u63a5\u8bfb\u53d6\u5e76\u68c0\u67e5\u4e867\u4e2a<\/p>\n
      \n
      \u9805\u76ee\u89e3\u8aaccursor\u30ab\u30fc\u30bd\u30eb\u30bf\u30a4\u30d7\u3002BasicCursor\u3001BtreeCursor\u3001GeoSearchCursorisMultiKey\u30de\u30eb\u30c1\u30ad\u30fc\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u3044\u308b\u304bn\u6700\u7d42\u7684\u306b\u30d2\u30c3\u30c8\u3057\u305f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u4ef6\u6570nscannedObjects\u30b9\u30ad\u30e3\u30f3\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6570nscanned\u30b9\u30ad\u30e3\u30f3\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8or\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u6570nscannedObjectsAllPlans\u3059\u3079\u3066\u306e\u30af\u30a8\u30ea\u3067\u30b9\u30ad\u30e3\u30f3\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7dcf\u6570nscannedAllPlans\u3059\u3079\u3066\u306e\u30af\u30a8\u30ea\u3067\u30b9\u30ad\u30e3\u30f3\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8or\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u6570scanAndOrder\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u308f\u305a\u306b\u7d50\u679c\u3092\u30bd\u30fc\u30c8\u3057\u3066\u8fd4\u3059\u304bindexOnly\u30af\u30a8\u30ea\u304c\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u307f\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b<\/p>\n
      \u67e5\u8be2\u65e5\u5fd7\u8c03\u67e5\u67e5\u8be2\u65e5\u5fd7\u7ea7\u522b\uff1a
      \n$> db.getProfilingLevel()
      \n\u6216\u8005
      \n$> db.setLogLevel(-1, “query”)<\/p>\n
      \u65e5\u5fd7\u7ea7\u522b\u8bbe\u7f6e
      \n$> db.setProfilingLevel(2)
      \n\u6216\u8005
      \n$> use admin
      \n$> db.adminCommand({setParameter:1, logLevel:2})<\/p>\n
      \u65e5\u5fd7\u7ea7\u522b\u7684\u79cd\u7c7b
      \n\u5bf9\u4e8e\u7ea7\u522b\u7684\u8be6\u7ec6\u4fe1\u606f\u4e0d\u592a\u6e05\u695a<\/p>\n
      \n
      Level \u3000\u3000\u3000\u89e3\u8aac \u3000\u3000\u3000\u3000\u305d\u306e\u4ed6 \u3000\u3000\u3000\u3000\u3000Level 0\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u4e00\u756a\u5c0f\u3055\u3044Level 1
      \nLevel 2\u3000\u3000\u3000\u3000\u3000\u3000Query \u3092\u78ba\u8a8d\u3067\u304d\u308b
      \nLevel 3
      \nLevel 4
      \nLevel 5\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u4e00\u756a\u5927\u304d\u3044
      \n\u7531\u4e8e\u65e5\u5fd7\u6587\u4ef6\u53d8\u5f97\u5e9e\u5927\uff0c\u6240\u4ee5\u8981\u5173\u5fc3\u78c1\u76d8\u5bb9\u91cf\u5e76\u786e\u4fdd\u59cb\u7ec8\u53ef\u8fc5\u901f\u8fd8\u539f\u3002<\/p>\n
      \u65e5\u5fd7\u8f93\u51fa
      \n$> db.system.profile.find().pretty()<\/p>\n
      \u63d0\u53d6\u65e5\u5fd7\uff1a
      \n$> db.system.profile.find({“query.user_id”:10082, “ts”: {“$gt”: ISODate(“2019-11-27T12:13:25.435Z”)}});
      \n\u4ee5\u7528\u6237\u548c\u65e5\u671f\u4e3a\u6761\u4ef6\u8fdb\u884c\u62bd\u53d6\u3002<\/p>\n
      7 \u7b80\u5355\u7684JS<\/p>\n
      db<\/span> =<\/span> db<\/span>.<\/span>getSiblingDB<\/span>(<\/span>'<\/span>test<\/span>'<\/span>);<\/span>\r\nprint<\/span>(<\/span>\"<\/span>Start<\/span>\"<\/span>);<\/span>\r\nvar<\/span> clientCount<\/span>=<\/span>0<\/span>;<\/span>\r\nvar<\/span> beforeIt<\/span> =<\/span> 0<\/span>;<\/span>\r\ndb<\/span>.<\/span>datacollection<\/span>.<\/span>find<\/span>({<\/span>\"<\/span>dataCreateDate<\/span>\"<\/span>:{<\/span>$exists<\/span>:<\/span> false<\/span>}}).<\/span>forEach<\/span>(<\/span>function<\/span>(<\/span>document<\/span>)<\/span> {<\/span>\r\n  var<\/span> id<\/span> =<\/span> document<\/span>.<\/span>_id<\/span>;<\/span>\r\n  print<\/span>(<\/span>\"<\/span>id:<\/span>\"<\/span> +<\/span> id<\/span>);<\/span>\r\n  print<\/span>(<\/span>\"<\/span>clientId:<\/span>\"<\/span> +<\/span> document<\/span>.<\/span>clientId<\/span>);<\/span>\r\n  db<\/span>.<\/span>datacollection<\/span>.<\/span>update<\/span>({<\/span>\"<\/span>_id<\/span>\"<\/span> :<\/span> id<\/span>},<\/span> {<\/span>\"<\/span>$set<\/span>\"<\/span>:<\/span> {<\/span> \"<\/span>dataCreateDate<\/span>\"<\/span> :<\/span> document<\/span>.<\/span>lastUpdateDate<\/span>}},<\/span> false<\/span>,<\/span> false<\/span>);<\/span>\r\n  clientCount<\/span>++<\/span>;<\/span>\r\n});<\/span>\r\nprint<\/span>(<\/span>\"<\/span> End count=<\/span>\"<\/span> +<\/span> clientCount<\/span>);<\/span>\r\n<\/code><\/pre>\n
      \u5c06lastUpdateDate\u653e\u5165\u6ca1\u6709dataCreateDate\u7684\u5730\u65b9\u8fdb\u884c\u5c1d\u8bd5\u3002<\/p>\n
      \u5f00\u59cb\u548c\u7ed3\u675fmongoDB<\/p>\n
      $><\/span> mongod --dbpath<\/span> ~\/mongoDB_work\/data\/ --logpath<\/span> ~\/mongoDB_work\/mongodb.log\r\n<\/code><\/pre>\n
      $><\/span> use admin\r\n$><\/span> db.shutdownServer()<\/span>;<\/span>\r\n$><\/span> quit()<\/span>;<\/span>\r\n<\/code><\/pre>\n
      \u6700\u540e\u6211\u8bb0\u4e0b\u4e86\u5728MongoDB\u4e0a\u6240\u505a\u7684\u5404\u79cd\u4e8b\u60c5\u3002\u5e0c\u671b\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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