{"id":21504,"date":"2024-01-02T10:29:22","date_gmt":"2024-01-02T10:29:22","guid":{"rendered":"https:\/\/server.hk\/blog\/21504\/"},"modified":"2024-11-14T10:31:40","modified_gmt":"2024-11-14T02:31:40","slug":"mongodb-glossary-collection","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21504\/","title":{"rendered":"MongoDB \u8a5e\u5f59\u8868 – \u96c6\u5408"},"content":{"rendered":"

MongoDB \u8a5e\u5f59\u8868 – \u96c6\u5408<\/h1>\n

\u5728 MongoDB \u7684\u4e16\u754c\u4e2d\uff0c\u96c6\u5408\u662f\u4e00\u7d44 MongoDB \u6587\u4ef6\u3002\u5b83\u76f8\u7576\u65bc\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4e2d\u7684\u8868\u3002\u96c6\u5408\u7528\u65bc\u4ee5\u7d50\u69cb\u5316\u7684\u65b9\u5f0f\u5b58\u5132\u548c\u7d44\u7e54\u6578\u64da\uff0c\u8b93\u6aa2\u7d22\u548c\u64cd\u4f5c\u4fe1\u606f\u66f4\u52a0\u65b9\u4fbf\u3002<\/p>\n

\u5efa\u7acb\u96c6\u5408<\/h2>\n

\u5728 MongoDB \u4e2d\u5efa\u7acb\u96c6\u5408\uff0c\u53ea\u9700\u8981\u5411\u5176\u4e2d\u63d2\u5165\u4e00\u500b\u6587\u4ef6\u3002\u82e5\u8a72\u96c6\u5408\u5c1a\u672a\u5b58\u5728\uff0cMongoDB \u6703\u81ea\u52d5\u5275\u5efa\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u60f3\u5efa\u7acb\u4e00\u500b\u540d\u70ba “users” \u7684\u96c6\u5408\u4f86\u5b58\u5132\u7528\u6236\u4fe1\u606f\uff1a<\/p>\n

db.users.insertOne({\r\n  name: \"John Doe\",\r\n  age: 30,\r\n  email: \"johndoe@example.com\"\r\n});\r\n<\/code><\/pre>\n
\u5728\u6b64\u7bc4\u4f8b\u4e2d\uff0c\u5982\u679c “users” \u96c6\u5408\u4e0d\u5b58\u5728\uff0c\u5c07\u6703\u81ea\u52d5\u5275\u5efa\uff0c\u4e26\u63d2\u5165\u5305\u542b\u6307\u5b9a\u6b04\u4f4d\u7684\u6587\u4ef6\u3002<\/p>\n
\u96c6\u5408\u7684\u7d50\u69cb<\/h2>\n
MongoDB \u4e2d\u7684\u96c6\u5408\u662f\u7121\u67b6\u69cb\u7684\uff0c\u9019\u610f\u5473\u7740\u96c6\u5408\u5167\u7684\u6bcf\u500b\u6587\u4ef6\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u7d50\u69cb\u3002\u9019\u7a2e\u9748\u6d3b\u6027\u4f7f\u5f97\u6578\u64da\u6a21\u578b\u80fd\u5920\u96a8\u8457\u9700\u6c42\u7684\u8b8a\u5316\u8f15\u9b06\u5730\u4fee\u6539\u548c\u9069\u61c9\u3002<\/p>\n
\u96c6\u5408\u4e2d\u7684\u6587\u4ef6\u4ee5 BSON\uff08Binary JSON\uff09\u683c\u5f0f\u5b58\u5132\uff0c\u9019\u662f\u4e00\u7a2e\u985e\u4f3c JSON \u6587\u6a94\u7684\u4e8c\u9032\u5236\u8868\u793a\u3002BSON \u63d0\u4f9b\u4e86 JSON \u4e2d\u6c92\u6709\u7684\u984d\u5916\u6578\u64da\u985e\u578b\uff0c\u4f8b\u5982 Date \u548c Binary\uff0c\u4f7f\u5176\u80fd\u5920\u5b58\u5132\u66f4\u8907\u96dc\u7684\u6578\u64da\u7d50\u69cb\u3002<\/p>\n
\u67e5\u8a62\u96c6\u5408<\/h2>\n
\u5728 MongoDB \u4e2d\u5f9e\u96c6\u5408\u4e2d\u6aa2\u7d22\u6578\u64da\u662f\u4f7f\u7528 find()<\/code> \u65b9\u6cd5\u5b8c\u6210\u7684\u3002\u6b64\u65b9\u6cd5\u5141\u8a31\u60a8\u6307\u5b9a\u7be9\u9078\u689d\u4ef6\u4f86\u6aa2\u7d22\u6240\u9700\u7684\u6587\u4ef6\u3002\u4f8b\u5982\uff0c\u8981\u67e5\u627e\u5e74\u9f61\u5927\u65bc 25 \u7684\u6240\u6709\u7528\u6236\uff1a<\/p>\n
db.users.find({ age: { $gt: 25 } });\r\n<\/code><\/pre>\n
\u6b64\u67e5\u8a62\u5c07\u8fd4\u56de “users” \u96c6\u5408\u4e2d “age” \u6b04\u4f4d\u5927\u65bc 25 \u7684\u6240\u6709\u6587\u4ef6\u3002<\/p>\n
\u96c6\u5408\u7684\u7d22\u5f15<\/h2>\n
\u7d22\u5f15\u662f\u6578\u64da\u5eab\u6548\u80fd\u512a\u5316\u4e2d\u7684\u91cd\u8981\u4e00\u74b0\u3002\u5728 MongoDB \u4e2d\uff0c\u60a8\u53ef\u4ee5\u5728\u96c6\u5408\u4e2d\u7684\u4e00\u500b\u6216\u591a\u500b\u6b04\u4f4d\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u80fd\u3002\u7d22\u5f15\u8b93 MongoDB \u80fd\u5920\u5feb\u901f\u5b9a\u4f4d\u7b26\u5408\u67e5\u8a62\u689d\u4ef6\u7684\u6587\u4ef6\uff0c\u5f9e\u800c\u6e1b\u5c11\u9700\u8981\u6383\u63cf\u7684\u6578\u64da\u91cf\u3002<\/p>\n
\u8981\u5728\u96c6\u5408\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u4f7f\u7528 createIndex()<\/code> \u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u5c0d “users” \u96c6\u5408\u4e2d\u7684 “email” \u6b04\u4f4d\u5275\u5efa\u7d22\u5f15\uff1a<\/p>\n
db.users.createIndex({ email: 1 });\r\n<\/code><\/pre>\n
\u9019\u5c07\u5728 “email” \u6b04\u4f4d\u4e0a\u5275\u5efa\u4e00\u500b\u5347\u5e8f\u7d22\u5f15\uff0c\u4f7f\u57fa\u65bc\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u7684\u6587\u4ef6\u6aa2\u7d22\u901f\u5ea6\u66f4\u5feb\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u96c6\u5408\u662f MongoDB \u4e2d\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u4f5c\u70ba\u6587\u4ef6\u7684\u5bb9\u5668\uff0c\u63d0\u4f9b\u4e86\u6709\u6548\u7d44\u7e54\u548c\u6aa2\u7d22\u6578\u64da\u7684\u65b9\u6cd5\u3002\u4e86\u89e3\u96c6\u5408\u5982\u4f55\u904b\u4f5c\u4ee5\u53ca\u5982\u4f55\u8207\u4e4b\u4e92\u52d5\uff0c\u5c0d\u65bc\u69cb\u5efa\u7a69\u5065\u4e14\u53ef\u64f4\u5c55\u7684 MongoDB \u61c9\u7528\u7a0b\u5f0f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
\u60f3\u4e86\u89e3\u66f4\u591a\u6709\u95dc VPS \u8a17\u7ba1\u4ee5\u53ca\u5b83\u5982\u4f55\u63d0\u5347\u60a8\u7684 MongoDB \u90e8\u7f72\uff0c\u8acb\u8a2a\u554f Server.HK<\/a>\u3002\u4ed6\u5011\u63d0\u4f9b\u9802\u7d1a\u7684 VPS \u89e3\u6c7a\u65b9\u6848\uff0c\u78ba\u4fdd\u60a8\u7684 MongoDB \u6578\u64da\u5eab\u80fd\u5920\u9054\u5230\u6700\u4f73\u6548\u80fd\u8207\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
MongoDB \u8a5e\u5f59\u8868 &#82...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21504","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21504"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21504\/revisions"}],"predecessor-version":[{"id":23960,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21504\/revisions\/23960"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}