{"id":667,"date":"2019-01-14T10:23:31","date_gmt":"2019-01-14T02:23:31","guid":{"rendered":"https:\/\/wyxxt.org.cn\/?p=667"},"modified":"2023-12-04T17:04:37","modified_gmt":"2023-12-04T09:04:37","slug":"mongodb-shell%e8%84%9a%e6%9c%ac%ef%bc%882%ef%bc%89","status":"publish","type":"post","link":"https:\/\/wyxxt.org.cn\/?p=667","title":{"rendered":"mongodb shell\u811a\u672c\uff082\uff09"},"content":{"rendered":"<h3>\u805a\u5408<\/h3>\n<pre><code class=\"language-shell line-numbers\">db.sampleapplications.aggregate({\n  $match: {\n    'approval.pending.realname': '\u738b\u5c0f\u4e8c'\n    }\n},\n{\n  $project: {app_datetime: 1, day: {$substr: ['$app_datetime', 0, 10]}}\n},\n{\n  $group: {_id: '$day'  , count: {$sum: 1}, app_datetime: {$push: '$app_datetime'}}\n},\n{\n  $sort: {_id: 1}\n}\n)\n\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/oss.wyxxt.org.cn\/images\/2021\/09\/18\/a1d5c15b74aa5e59250729da57dd1823.png\" alt=\"\" \/><\/p>\n<p><strong>$match:\u5339\u914d\u7b5b\u9009<\/strong><br \/>\n<strong>$project:\u6295\u5c04 \u53ef\u4ee5\u91cd\u6587\u6863\u4e2d\u63d0\u53d6\u5b57\u6bb5\uff0c\u53ef\u4ee5\u91cd\u547d\u540d\u5b57\u6bb5\uff0c\u53ef\u4ee5\u521b\u5efa\u751f\u6210\u65b0\u5b57\u6bb5 \u7b49\u7b49<\/strong><br \/>\n<strong>$group:\u5206\u7ec4 \u4ee5day\u8fdb\u884c\u5206\u7ec4\uff0c\u540c\u4e00\u4e2aday count+1\uff0c\u540c\u4e00\u4e2aday app_datetime push\u8fdb\u5165\u6570\u7ec4<\/strong><br \/>\n<strong>$sort:\u6392\u5e8f<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u805a\u5408 db.sampleapplications.aggregate({ $match: { &#8216;approva [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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