{"id":5380,"date":"2024-11-14T09:08:32","date_gmt":"2024-11-14T01:08:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5380\/"},"modified":"2024-11-14T09:08:32","modified_gmt":"2024-11-14T01:08:32","slug":"mongodb%e7%b4%a2%e5%bc%95%e6%80%8e%e4%b9%88%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5380\/","title":{"rendered":"mongodb\u7d22\u5f15\u600e\u4e48\u6392\u5e8f"},"content":{"rendered":"<blockquote><p>\n  \u6392\u5e8f\u7d22\u5f15\u662f mongodb \u7d22\u5f15\u7684\u4e00\u79cd\uff0c\u5141\u8bb8\u6309\u7279\u5b9a\u5b57\u6bb5\u5bf9\u96c6\u5408\u4e2d\u7684\u6587\u6863\u6392\u5e8f\u3002\u521b\u5efa\u6392\u5e8f\u7d22\u5f15\u53ef\u4ee5\u5feb\u901f\u6392\u5e8f\u67e5\u8be2\u7ed3\u679c\uff0c\u65e0\u9700\u989d\u5916\u7684\u6392\u5e8f\u64cd\u4f5c\u3002\u4f18\u52bf\u5305\u62ec\u5feb\u901f\u6392\u5e8f\u3001\u8986\u76d6\u67e5\u8be2\u548c\u6309\u9700\u6392\u5e8f\u3002\u8bed\u6cd5\u4e3a db.collection.createindex({ field: })\uff0c\u5176\u4e2d \u4e3a 1\uff08\u5347\u5e8f\uff09\u6216 -1\uff08\u964d\u5e8f\uff09\u3002\u8fd8\u53ef\u4ee5\u521b\u5efa\u5bf9\u591a\u4e2a\u5b57\u6bb5\u8fdb\u884c\u6392\u5e8f\u7684\u591a\u5b57\u6bb5\u6392\u5e8f\u7d22\u5f15\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/28\/2024052803004719890.jpg\" class=\"aligncenter\" title=\"mongodb\u7d22\u5f15\u600e\u4e48\u6392\u5e8f\u63d2\u56fe\" alt=\"mongodb\u7d22\u5f15\u600e\u4e48\u6392\u5e8f\u63d2\u56fe\" \/><\/p>\n<p><strong>MongoDB \u7d22\u5f15\u7684\u6392\u5e8f<\/strong><\/p>\n<p>\u7d22\u5f15\u662f MongoDB \u4e2d\u63d0\u5347\u67e5\u8be2\u6027\u80fd\u7684\u5173\u952e\u6570\u636e\u7ed3\u6784\u3002\u901a\u8fc7\u5bf9\u96c6\u5408\u4e2d\u7684\u6587\u6863\u521b\u5efa\u7d22\u5f15\uff0c\u67e5\u8be2\u53ef\u4ee5\u5feb\u901f\u627e\u5230\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u6587\u6863\uff0c\u800c\u65e0\u9700\u626b\u63cf\u6574\u4e2a\u96c6\u5408\u3002<\/p>\n<p><strong>\u6392\u5e8f\u7d22\u5f15<\/strong><\/p>\n<p>\u6392\u5e8f\u7d22\u5f15\u662f MongoDB \u7d22\u5f15\u7684\u4e00\u79cd\uff0c\u5b83\u5141\u8bb8\u5bf9\u96c6\u5408\u4e2d\u7684\u6587\u6863\u6309\u7279\u5b9a\u5b57\u6bb5\u8fdb\u884c\u6392\u5e8f\u3002\u8fd9\u610f\u5473\u7740\u67e5\u8be2\u53ef\u4ee5\u4f7f\u7528\u8be5\u5b57\u6bb5\u5bf9\u5176\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u800c\u65e0\u9700\u5728\u68c0\u7d22\u540e\u8fdb\u884c\u989d\u5916\u7684\u6392\u5e8f\u64cd\u4f5c\u3002<\/p>\n<p><strong>\u521b\u5efa\u6392\u5e8f\u7d22\u5f15<\/strong><\/p>\n<p>\u8981\u521b\u5efa\u6392\u5e8f\u7d22\u5f15\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>db.collection.createIndex({ field: &lt;sort order&gt; })<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p> \u53ef\u4ee5\u662f\u4ee5\u4e0b\u503c\u4e4b\u4e00\uff1a <\/p>\n<ul>\n<li>1\uff1a\u5347\u5e8f <\/li>\n<li>-1\uff1a\u964d\u5e8f\u6392\u5217<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u547d\u4ee4\u5c06\u521b\u5efa\u5bf9 name \u5b57\u6bb5\u6309\u5347\u5e8f\u6392\u5217\u7684\u6392\u5e8f\u7d22\u5f15\uff1a<\/p>\n<pre>db.users.createIndex({ name: 1 })<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u6392\u5e8f\u7d22\u5f15<\/strong><\/p>\n<p>\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528\u6392\u5e8f\u7d22\u5f15\u65f6\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>db.collection.find({}).sort({ field: &lt;sort order&gt; })<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p> \u4e0e\u521b\u5efa\u7d22\u5f15\u65f6\u4f7f\u7528\u7684\u76f8\u540c\u3002 <\/p>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8be2\u5c06\u6309 name \u5b57\u6bb5\u5347\u5e8f\u6392\u5217\u5730\u68c0\u7d22\u6240\u6709\u7528\u6237\u6587\u6863\uff1a<\/p>\n<pre>db.users.find({}).sort({ name: 1 })<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u591a\u5b57\u6bb5\u6392\u5e8f\u7d22\u5f15<\/strong><\/p>\n<p>MongoDB \u8fd8\u652f\u6301\u521b\u5efa\u590d\u5408\u6392\u5e8f\u7d22\u5f15\uff0c\u5141\u8bb8\u5bf9\u591a\u4e2a\u5b57\u6bb5\u8fdb\u884c\u6392\u5e8f\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>db.collection.createIndex({ field1: &lt;sort order&gt;, field2: &lt;sort order&gt; })<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u547d\u4ee4\u5c06\u521b\u5efa\u5bf9 name \u5b57\u6bb5\u6309\u964d\u5e8f\u548c age \u5b57\u6bb5\u6309\u5347\u5e8f\u6392\u5217\u7684\u590d\u5408\u6392\u5e8f\u7d22\u5f15\uff1a<\/p>\n<pre>db.users.createIndex({ name: -1, age: 1 })<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f18\u52bf<\/strong><\/p>\n<p>\u4f7f\u7528\u6392\u5e8f\u7d22\u5f15\u5177\u6709\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li> <strong>\u5feb\u901f\u6392\u5e8f\uff1a<\/strong> \u5141\u8bb8\u67e5\u8be2\u76f4\u63a5\u8fd4\u56de\u6392\u5e8f\u7ed3\u679c\uff0c\u800c\u65e0\u9700\u5728\u68c0\u7d22\u540e\u8fdb\u884c\u989d\u5916\u7684\u6392\u5e8f\u64cd\u4f5c\u3002<\/li>\n<li> <strong>\u8986\u76d6\u67e5\u8be2\uff1a<\/strong> \u5982\u679c\u67e5\u8be2\u6761\u4ef6\u548c\u6392\u5e8f\u5b57\u6bb5\u90fd\u5305\u542b\u5728\u7d22\u5f15\u4e2d\uff0c\u5219\u67e5\u8be2\u5f15\u64ce\u53ef\u4ee5\u901a\u8fc7\u4e00\u6b21\u7d22\u5f15\u67e5\u627e\u8fd4\u56de\u7ed3\u679c\uff0c\u65e0\u9700\u8bbf\u95ee\u5e95\u5c42\u96c6\u5408\u3002\u8fd9\u53ef\u4ee5\u663e\u7740\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<li> <strong>\u6309\u9700\u6392\u5e8f\uff1a<\/strong> MongoDB \u4ec5\u5728\u9700\u8981\u65f6\u624d\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u4ece\u800c\u8282\u7701\u8d44\u6e90\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u5927\u578b\u96c6\u5408\u65f6\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u7d22\u5f15\u600e\u4e48\u6392\u5e8f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6392\u5e8f\u7d22\u5f15\u662f mongodb \u7d22\u5f15\u7684\u4e00\u79cd\uff0c\u5141\u8bb8\u6309\u7279\u5b9a\u5b57\u6bb5\u5bf9\u96c6\u5408\u4e2d\u7684\u6587\u6863\u6392\u5e8f\u3002\u521b\u5efa\u6392\u5e8f\u7d22\u5f15\u53ef\u4ee5\u5feb\u901f\u6392\u5e8f\u67e5\u8be2\u7ed3\u679c\uff0c\u65e0\u9700\u989d\u5916\u7684\u6392\u5e8f\u64cd\u4f5c\u3002\u4f18\u52bf\u5305\u62ec\u5feb\u901f\u6392\u5e8f\u3001\u8986\u76d6\u67e5\u8be2\u548c\u6309\u9700\u6392\u5e8f\u3002\u8bed\u6cd5\u4e3a db.collection.createindex({ field: })\uff0c\u5176\u4e2d \u4e3a 1\uff08\u5347\u5e8f\uff09\u6216 -1\uff08\u964d\u5e8f\uff09\u3002\u8fd8\u53ef\u4ee5\u521b\u5efa\u5bf9\u591a\u4e2a\u5b57\u6bb5\u8fdb\u884c\u6392\u5e8f\u7684\u591a\u5b57\u6bb5\u6392\u5e8f\u7d22\u5f15\u3002 MongoDB \u7d22\u5f15\u7684\u6392\u5e8f \u7d22\u5f15\u662f MongoDB \u4e2d\u63d0\u5347\u67e5\u8be2\u6027\u80fd\u7684\u5173\u952e\u6570\u636e\u7ed3\u6784\u3002\u901a\u8fc7\u5bf9\u96c6\u5408\u4e2d\u7684\u6587\u6863\u521b\u5efa\u7d22\u5f15\uff0c\u67e5\u8be2\u53ef\u4ee5\u5feb\u901f\u627e\u5230\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u6587\u6863\uff0c\u800c\u65e0\u9700\u626b\u63cf\u6574\u4e2a\u96c6\u5408\u3002 \u6392\u5e8f\u7d22\u5f15 \u6392\u5e8f\u7d22\u5f15\u662f MongoDB \u7d22\u5f15\u7684\u4e00\u79cd\uff0c\u5b83\u5141\u8bb8\u5bf9\u96c6\u5408\u4e2d\u7684\u6587\u6863\u6309\u7279\u5b9a\u5b57\u6bb5\u8fdb\u884c\u6392\u5e8f\u3002\u8fd9\u610f\u5473\u7740\u67e5\u8be2\u53ef\u4ee5\u4f7f\u7528\u8be5\u5b57\u6bb5\u5bf9\u5176\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\uff0c\u800c\u65e0\u9700\u5728\u68c0\u7d22\u540e\u8fdb\u884c\u989d\u5916\u7684\u6392\u5e8f\u64cd\u4f5c\u3002 \u521b\u5efa\u6392\u5e8f\u7d22\u5f15 \u8981\u521b\u5efa\u6392\u5e8f\u7d22\u5f15\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a db.collection.createIndex({ field: &lt;sort order&gt; }) \u767b\u5f55\u540e\u590d\u5236 \u53ef\u4ee5\u662f\u4ee5\u4e0b\u503c\u4e4b\u4e00\uff1a 1\uff1a\u5347\u5e8f -1\uff1a\u964d\u5e8f\u6392\u5217 \u4f8b\u5982\uff0c\u4ee5\u4e0b\u547d\u4ee4\u5c06\u521b\u5efa\u5bf9 name \u5b57\u6bb5\u6309\u5347\u5e8f\u6392\u5217\u7684\u6392\u5e8f\u7d22\u5f15\uff1a db.users.createIndex({ name: 1 }) \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6392\u5e8f\u7d22\u5f15 \u5728\u67e5\u8be2\u4e2d\u4f7f\u7528\u6392\u5e8f\u7d22\u5f15\u65f6\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a db.collection.find({}).sort({ field: &lt;sort order&gt; }) \u767b\u5f55\u540e\u590d\u5236 \u4e0e\u521b\u5efa\u7d22\u5f15\u65f6\u4f7f\u7528\u7684\u76f8\u540c\u3002 \u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8be2\u5c06\u6309 name \u5b57\u6bb5\u5347\u5e8f\u6392\u5217\u5730\u68c0\u7d22\u6240\u6709\u7528\u6237\u6587\u6863\uff1a db.users.find({}).sort({ name: 1 }) \u767b\u5f55\u540e\u590d\u5236 \u591a\u5b57\u6bb5\u6392\u5e8f\u7d22\u5f15 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5380","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5380","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5380"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5380\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}