{"id":184959,"date":"2023-07-02T07:20:38","date_gmt":"2023-07-01T23:20:38","guid":{"rendered":"http:\/\/www.idc.net\/help\/184959\/"},"modified":"2023-07-02T07:20:38","modified_gmt":"2023-07-01T23:20:38","slug":"%e5%90%8e%e6%b5%aa%e4%ba%91%e5%b0%8f%e7%a8%8b%e5%ba%8f%e6%95%99%e7%a8%8b%ef%bc%9asdk%e6%95%b0%e6%8d%ae%e5%ba%93-database%c2%b7%e6%95%b0%e6%8d%ae%e5%ba%93%e6%93%8d%e4%bd%9c%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/184959\/","title":{"rendered":"\u540e\u6d6a\u4e91\u5c0f\u7a0b\u5e8f\u6559\u7a0b\uff1aSDK\u6570\u636e\u5e93 database\u00b7\u6570\u636e\u5e93\u64cd\u4f5c\u7b26"},"content":{"rendered":"

Command<\/h2>\n

\u6570\u636e\u5e93\u64cd\u4f5c\u7b26\uff0c\u901a\u8fc7 db.command \u83b7\u53d6<\/p>\n

\u5c5e\u6027<\/h2>\n

AggregateCommand aggregate<\/h3>\n

\u805a\u5408\u64cd\u4f5c\u7b26<\/p>\n

\u65b9\u6cd5<\/h2>\n

Command.addToSet(value: any|Object): Command<\/h3>\n

\u6570\u7ec4\u66f4\u65b0\u64cd\u4f5c\u7b26\u3002\u539f\u5b50\u64cd\u4f5c\u3002\u7ed9\u5b9a\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\uff0c\u9664\u975e\u6570\u7ec4\u4e2d\u5df2\u5b58\u5728\u8be5\u5143\u7d20\uff0c\u5426\u5219\u6dfb\u52a0\u8fdb\u6570\u7ec4\u3002<\/p>\n

Command.all(values: any[]): Command<\/h3>\n

\u6570\u7ec4\u67e5\u8be2\u64cd\u4f5c\u7b26\u3002\u7528\u4e8e\u6570\u7ec4\u5b57\u6bb5\u7684\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6\uff0c\u8981\u6c42\u6570\u7ec4\u5b57\u6bb5\u4e2d\u5305\u542b\u7ed9\u5b9a\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002<\/p>\n

Command.and(expressions: any[]): Command<\/h3>\n

\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91 \"\u4e0e\" \u7684\u5173\u7cfb\uff0c\u8868\u793a\u9700\u540c\u65f6\u6ee1\u8db3\u591a\u4e2a\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6<\/p>\n

Command.bit(object: Object): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\u3002\u5bf9\u5b57\u6bb5\u8fdb\u884c\u4f4d\u8fd0\u7b97\uff0c\u53ef\u4ee5\u8fdb\u884c and\/or\/xor \u8fd0\u7b97\u3002<\/p>\n

Command.elemMatch(condition: Object|Command): Command<\/h3>\n

\u7528\u4e8e\u6570\u7ec4\u5b57\u6bb5\u7684\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6\uff0c\u8981\u6c42\u6570\u7ec4\u4e2d\u5305\u542b\u81f3\u5c11\u4e00\u4e2a\u6ee1\u8db3 elemMatch \u7ed9\u5b9a\u7684\u6240\u6709\u6761\u4ef6\u7684\u5143\u7d20<\/p>\n

Command.eq(value: any): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6\uff0c\u8868\u793a\u5b57\u6bb5\u7b49\u4e8e\u67d0\u4e2a\u503c\u3002eq \u6307\u4ee4\u63a5\u53d7\u4e00\u4e2a\u5b57\u9762\u91cf (literal)\uff0c\u53ef\u4ee5\u662f number, boolean, string, object, array, Date\u3002<\/p>\n

Command.exists(value: boolean): Command<\/h3>\n

\u5224\u65ad\u5b57\u6bb5\u662f\u5426\u5b58\u5728<\/p>\n

Command.expr(aggregateExpression: Expression):  Command<\/h3>\n

\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u5728\u67e5\u8be2\u8bed\u53e5\u4e2d\u4f7f\u7528\u805a\u5408\u8868\u8fbe\u5f0f\uff0c\u65b9\u6cd5\u63a5\u6536\u4e00\u4e2a\u53c2\u6570\uff0c\u8be5\u53c2\u6570\u5fc5\u987b\u4e3a\u805a\u5408\u8868\u8fbe\u5f0f<\/p>\n

Command.geoIntersects(options: Object): Command<\/h3>\n

\u627e\u51fa\u7ed9\u5b9a\u7684\u5730\u7406\u4f4d\u7f6e\u56fe\u5f62\u76f8\u4ea4\u7684\u8bb0\u5f55<\/p>\n

Command.geoNear(options: Object): Command<\/h3>\n

\u6309\u4ece\u8fd1\u5230\u8fdc\u7684\u987a\u5e8f\uff0c\u627e\u51fa\u5b57\u6bb5\u503c\u5728\u7ed9\u5b9a\u70b9\u7684\u9644\u8fd1\u7684\u8bb0\u5f55\u3002<\/p>\n

Command.geoWithin(options: Object): Command<\/h3>\n

\u627e\u51fa\u5b57\u6bb5\u503c\u5728\u6307\u5b9a\u533a\u57df\u5185\u7684\u8bb0\u5f55\uff0c\u65e0\u6392\u5e8f\u3002\u6307\u5b9a\u7684\u533a\u57df\u5fc5\u987b\u662f\u591a\u8fb9\u5f62\uff08Polygon\uff09\u6216\u591a\u8fb9\u5f62\u96c6\u5408\uff08MultiPolygon\uff09\u3002<\/p>\n

Command.gt(value: any): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u64cd\u4f5c\u7b26\uff0c\u8868\u793a\u9700\u5927\u4e8e\u6307\u5b9a\u503c\u3002\u53ef\u4ee5\u4f20\u5165 Date \u5bf9\u8c61\u7528\u4e8e\u8fdb\u884c\u65e5\u671f\u6bd4\u8f83\u3002<\/p>\n

Command.gte(value: any): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u64cd\u4f5c\u7b26\uff0c\u8868\u793a\u9700\u5927\u4e8e\u6216\u7b49\u4e8e\u6307\u5b9a\u503c\u3002\u53ef\u4ee5\u4f20\u5165 Date \u5bf9\u8c61\u7528\u4e8e\u8fdb\u884c\u65e5\u671f\u6bd4\u8f83\u3002<\/p>\n

Command.in(value: any[]): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u64cd\u4f5c\u7b26\uff0c\u8868\u793a\u8981\u6c42\u503c\u5728\u7ed9\u5b9a\u7684\u6570\u7ec4\u5185\u3002<\/p>\n

Command.inc(value: number): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u539f\u5b50\u64cd\u4f5c\uff0c\u7528\u4e8e\u6307\u793a\u5b57\u6bb5\u81ea\u589e<\/p>\n

Command.lt(value: any): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u64cd\u4f5c\u7b26\uff0c\u8868\u793a\u9700\u5c0f\u4e8e\u6307\u5b9a\u503c\u3002\u53ef\u4ee5\u4f20\u5165 Date \u5bf9\u8c61\u7528\u4e8e\u8fdb\u884c\u65e5\u671f\u6bd4\u8f83\u3002<\/p>\n

Command.lte(value: any): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u64cd\u4f5c\u7b26\uff0c\u8868\u793a\u9700\u5c0f\u4e8e\u6216\u7b49\u4e8e\u6307\u5b9a\u503c\u3002\u53ef\u4ee5\u4f20\u5165 Date \u5bf9\u8c61\u7528\u4e8e\u8fdb\u884c\u65e5\u671f\u6bd4\u8f83\u3002<\/p>\n

Command.max(value: any): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u7ed9\u5b9a\u4e00\u4e2a\u503c\uff0c\u53ea\u6709\u8be5\u503c\u5927\u4e8e\u5b57\u6bb5\u5f53\u524d\u503c\u624d\u8fdb\u884c\u66f4\u65b0\u3002<\/p>\n

Command.min(value: any): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u7ed9\u5b9a\u4e00\u4e2a\u503c\uff0c\u53ea\u6709\u8be5\u503c\u5c0f\u4e8e\u5b57\u6bb5\u5f53\u524d\u503c\u624d\u8fdb\u884c\u66f4\u65b0\u3002<\/p>\n

Command.mod(divisor: number, remainder: number): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u64cd\u4f5c\u7b26\uff0c\u7ed9\u5b9a\u9664\u6570 divisor \u548c\u4f59\u6570 remainder\uff0c\u8981\u6c42\u5b57\u6bb5\u4f5c\u4e3a\u88ab\u9664\u6570\u65f6 value % divisor = remainder\u3002<\/p>\n

Command.mul(value: number): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u539f\u5b50\u64cd\u4f5c\uff0c\u7528\u4e8e\u6307\u793a\u5b57\u6bb5\u81ea\u4e58\u67d0\u4e2a\u503c<\/p>\n

Command.neq(value: any): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6\uff0c\u8868\u793a\u5b57\u6bb5\u4e0d\u7b49\u4e8e\u67d0\u4e2a\u503c\u3002eq \u6307\u4ee4\u63a5\u53d7\u4e00\u4e2a\u5b57\u9762\u91cf (literal)\uff0c\u53ef\u4ee5\u662f number, boolean, string, object, array, Date\u3002<\/p>\n

Command.nin(value: any[]): Command<\/h3>\n

\u67e5\u8be2\u7b5b\u9009\u64cd\u4f5c\u7b26\uff0c\u8868\u793a\u8981\u6c42\u503c\u4e0d\u5728\u7ed9\u5b9a\u7684\u6570\u7ec4\u5185\u3002<\/p>\n

Command.nor(expressions: any[]): Command<\/h3>\n

\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91 \"\u90fd\u4e0d\" \u7684\u5173\u7cfb\uff0c\u8868\u793a\u9700\u4e0d\u6ee1\u8db3\u6307\u5b9a\u7684\u6240\u6709\u6761\u4ef6\u3002\u5982\u679c\u8bb0\u5f55\u4e2d\u6ca1\u6709\u5bf9\u5e94\u7684\u5b57\u6bb5\uff0c\u5219\u9ed8\u8ba4\u6ee1\u8db3\u6761\u4ef6\u3002<\/p>\n

Command.not(command: Command): Command<\/h3>\n

\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91 \"\u975e\" \u7684\u5173\u7cfb\uff0c\u8868\u793a\u9700\u4e0d\u6ee1\u8db3\u6307\u5b9a\u7684\u6761\u4ef6\u3002<\/p>\n

Command.or(expressions: any[]): Command<\/h3>\n

\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91 \"\u6216\" \u7684\u5173\u7cfb\uff0c\u8868\u793a\u9700\u540c\u65f6\u6ee1\u8db3\u591a\u4e2a\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6\u3002\u6216\u6307\u4ee4\u6709\u4e24\u79cd\u7528\u6cd5\uff0c\u4e00\u662f\u53ef\u4ee5\u8fdb\u884c\u5b57\u6bb5\u503c\u7684 \u201c\u6216\u201d \u64cd\u4f5c\uff0c\u4e8c\u662f\u4e5f\u53ef\u4ee5\u8fdb\u884c\u8de8\u5b57\u6bb5\u7684 \u201c\u6216\u201d \u64cd\u4f5c\u3002<\/p>\n

Command.pop(): Command<\/h3>\n

\u6570\u7ec4\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u5bf9\u4e00\u4e2a\u503c\u4e3a\u6570\u7ec4\u7684\u5b57\u6bb5\uff0c\u5c06\u6570\u7ec4\u5c3e\u90e8\u5143\u7d20\u5220\u9664<\/p>\n

Command.pull(value: any): Command<\/h3>\n

\u6570\u7ec4\u66f4\u65b0\u64cd\u4f5c\u7b26\u3002\u7ed9\u5b9a\u4e00\u4e2a\u503c\u6216\u4e00\u4e2a\u67e5\u8be2\u6761\u4ef6\uff0c\u5c06\u6570\u7ec4\u4e2d\u6240\u6709\u5339\u914d\u7ed9\u5b9a\u503c\u6216\u67e5\u8be2\u6761\u4ef6\u7684\u5143\u7d20\u90fd\u79fb\u9664\u6389\u3002<\/p>\n

Command.pullAll(value: any): Command<\/h3>\n

\u6570\u7ec4\u66f4\u65b0\u64cd\u4f5c\u7b26\u3002\u7ed9\u5b9a\u4e00\u4e2a\u503c\u6216\u4e00\u4e2a\u67e5\u8be2\u6761\u4ef6\uff0c\u5c06\u6570\u7ec4\u4e2d\u6240\u6709\u5339\u914d\u7ed9\u5b9a\u503c\u7684\u5143\u7d20\u90fd\u79fb\u9664\u6389\u3002\u8ddf pull \u7684\u5dee\u522b\u5728\u4e8e\u53ea\u80fd\u6307\u5b9a\u5e38\u91cf\u503c\u3001\u4f20\u5165\u7684\u662f\u6570\u7ec4\u3002<\/p>\n

Command.push(values: Object): Command<\/h3>\n

\u6570\u7ec4\u66f4\u65b0\u64cd\u4f5c\u7b26\u3002\u5bf9\u4e00\u4e2a\u503c\u4e3a\u6570\u7ec4\u7684\u5b57\u6bb5\uff0c\u5f80\u6570\u7ec4\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u503c\u3002\u6216\u5b57\u6bb5\u539f\u4e3a\u7a7a\uff0c\u5219\u521b\u5efa\u8be5\u5b57\u6bb5\u5e76\u8bbe\u6570\u7ec4\u4e3a\u4f20\u5165\u503c\u3002<\/p>\n

Command.remove(): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u5220\u9664\u67d0\u4e2a\u5b57\u6bb5\u3002<\/p>\n

Command.rename(value: string): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u5b57\u6bb5\u91cd\u547d\u540d\u3002\u5982\u679c\u9700\u8981\u5bf9\u5d4c\u5957\u6df1\u5c42\u7684\u5b57\u6bb5\u505a\u91cd\u547d\u540d\uff0c\u9700\u8981\u7528\u70b9\u8def\u5f84\u8868\u793a\u6cd5\u3002\u4e0d\u80fd\u5bf9\u5d4c\u5957\u5728\u6570\u7ec4\u91cc\u7684\u5bf9\u8c61\u7684\u5b57\u6bb5\u8fdb\u884c\u91cd\u547d\u540d\u3002<\/p>\n

Command.set(value: any): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8bbe\u5b9a\u5b57\u6bb5\u7b49\u4e8e\u6307\u5b9a\u503c\u3002<\/p>\n

Command.shift(): Command<\/h3>\n

\u6570\u7ec4\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u5bf9\u4e00\u4e2a\u503c\u4e3a\u6570\u7ec4\u7684\u5b57\u6bb5\uff0c\u5c06\u6570\u7ec4\u5934\u90e8\u5143\u7d20\u5220\u9664\u3002<\/p>\n

Command.size(value: string): Command<\/h3>\n

\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u6570\u7ec4\u5b57\u6bb5\u7684\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6\uff0c\u8981\u6c42\u6570\u7ec4\u957f\u5ea6\u4e3a\u7ed9\u5b9a\u503c<\/p>\n

Command.unshift(values: any[]): Command<\/h3>\n

\u6570\u7ec4\u66f4\u65b0\u64cd\u4f5c\u7b26\uff0c\u5bf9\u4e00\u4e2a\u503c\u4e3a\u6570\u7ec4\u7684\u5b57\u6bb5\uff0c\u5f80\u6570\u7ec4\u5934\u90e8\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u503c\u3002\u6216\u5b57\u6bb5\u539f\u4e3a\u7a7a\uff0c\u5219\u521b\u5efa\u8be5\u5b57\u6bb5\u5e76\u8bbe\u6570\u7ec4\u4e3a\u4f20\u5165\u503c\u3002<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Command \u6570\u636e\u5e93\u64cd\u4f5c\u7b26\uff0c\u901a\u8fc7 db.command \u83b7\u53d6 \u5c5e\u6027 AggregateC […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[182398],"tags":[],"class_list":["post-184959","post","type-post","status-publish","format-standard","hentry","category-mini-program"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/184959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=184959"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/184959\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=184959"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=184959"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=184959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}