{"id":171907,"date":"2024-11-07T08:40:17","date_gmt":"2024-11-07T00:40:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/171907\/"},"modified":"2024-11-07T08:40:17","modified_gmt":"2024-11-07T00:40:17","slug":"%e8%bc%95%e9%ac%86%e6%8e%8c%e6%8f%a1-access-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%97%a5%e6%9c%9f%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7-access%e6%95%b8%e6%93%9a%e5%ba%ab%e6%97%a5%e6%9c%9f%e6%9f%a5%e8%a9%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/171907\/","title":{"rendered":"\u8f15\u9b06\u638c\u63e1 Access \u6578\u64da\u5eab\u65e5\u671f\u67e5\u8a62\u6280\u5de7 (access\u6578\u64da\u5eab\u65e5\u671f\u67e5\u8a62)"},"content":{"rendered":"<h1 id=\"%e8%bc%95%e9%ac%86%e6%8e%8c%e6%8f%a1-access-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%97%a5%e6%9c%9f%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7-rdwQrSoDeJ\">\u8f15\u9b06\u638c\u63e1 Access \u6578\u64da\u5eab\u65e5\u671f\u67e5\u8a62\u6280\u5de7<\/h1>\n<p>\u5728\u6578\u64da\u7ba1\u7406\u7684\u4e16\u754c\u4e2d\uff0c\u65e5\u671f\u67e5\u8a62\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u74b0\u3002\u7121\u8ad6\u662f\u4f01\u696d\u5831\u544a\u3001\u6578\u64da\u5206\u6790\u9084\u662f\u65e5\u5e38\u7684\u6578\u64da\u7dad\u8b77\uff0c\u80fd\u5920\u6709\u6548\u5730\u67e5\u8a62\u548c\u64cd\u4f5c\u65e5\u671f\u6578\u64da\u90fd\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u6280\u80fd\u3002Microsoft Access \u4f5c\u70ba\u4e00\u6b3e\u6d41\u884c\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65e5\u671f\u67e5\u8a62\u7684\u529f\u80fd\uff0c\u8b93\u7528\u6236\u80fd\u5920\u8f15\u9b06\u5730\u9032\u884c\u65e5\u671f\u7be9\u9078\u548c\u67e5\u8a62\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u4e9b Access \u6578\u64da\u5eab\u65e5\u671f\u67e5\u8a62\u7684\u6280\u5de7\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u638c\u63e1\u9019\u4e00\u6280\u80fd\u3002<\/p>\n<h2 id=\"1-%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e7%9a%84%e7%90%86%e8%a7%a3-rdwQrSoDeJ\">1. \u65e5\u671f\u683c\u5f0f\u7684\u7406\u89e3<\/h2>\n<p>\u5728\u9032\u884c\u65e5\u671f\u67e5\u8a62\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3 Access \u4e2d\u7684\u65e5\u671f\u683c\u5f0f\u3002Access \u4f7f\u7528\u7684\u65e5\u671f\u683c\u5f0f\u901a\u5e38\u662f <code>MM\/DD\/YYYY<\/code>\uff0c\u9019\u610f\u5473\u8457\u6708\u4efd\u5728\u524d\uff0c\u65e5\u671f\u5728\u5f8c\u3002\u9019\u4e00\u9ede\u5728\u9032\u884c\u67e5\u8a62\u6642\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u70ba\u932f\u8aa4\u7684\u683c\u5f0f\u6703\u5c0e\u81f4\u67e5\u8a62\u5931\u6557\u6216\u8fd4\u56de\u4e0d\u6b63\u78ba\u7684\u7d50\u679c\u3002<\/p>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8%e6%97%a5%e6%9c%9f%e5%87%bd%e6%95%b8-rdwQrSoDeJ\">2. \u4f7f\u7528\u65e5\u671f\u51fd\u6578<\/h2>\n<p>Access \u63d0\u4f9b\u4e86\u591a\u7a2e\u5167\u5efa\u7684\u65e5\u671f\u51fd\u6578\uff0c\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u9032\u884c\u66f4\u8907\u96dc\u7684\u65e5\u671f\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u65e5\u671f\u51fd\u6578\uff1a<\/p>\n<ul>\n<li><code>Date()<\/code>\uff1a\u8fd4\u56de\u7576\u524d\u65e5\u671f\u3002<\/li>\n<li><code>Now()<\/code>\uff1a\u8fd4\u56de\u7576\u524d\u65e5\u671f\u548c\u6642\u9593\u3002<\/li>\n<li><code>DateAdd(interval, number, date)<\/code>\uff1a\u5728\u6307\u5b9a\u7684\u65e5\u671f\u4e0a\u6dfb\u52a0\u6642\u9593\u9593\u9694\u3002<\/li>\n<li><code>DateDiff(interval, date1, date2)<\/code>\uff1a\u8a08\u7b97\u5169\u500b\u65e5\u671f\u4e4b\u9593\u7684\u5dee\u7570\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u8981\u67e5\u8a62\u904e\u53bb\u4e03\u5929\u5167\u7684\u6240\u6709\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT * FROM YourTable WHERE YourDateField &gt;= Date() - 7;<\/code><\/pre>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8-between-%e9%80%b2%e8%a1%8c%e7%af%84%e5%9c%8d%e6%9f%a5%e8%a9%a2-rdwQrSoDeJ\">3. \u4f7f\u7528 BETWEEN \u9032\u884c\u7bc4\u570d\u67e5\u8a62<\/h2>\n<p>\u5982\u679c\u9700\u8981\u67e5\u8a62\u67d0\u4e00\u7279\u5b9a\u65e5\u671f\u7bc4\u570d\u5167\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>BETWEEN<\/code> \u95dc\u9375\u5b57\u3002\u9019\u6a23\u53ef\u4ee5\u65b9\u4fbf\u5730\u6307\u5b9a\u958b\u59cb\u548c\u7d50\u675f\u65e5\u671f\u3002\u4f8b\u5982\uff0c\u67e5\u8a62 2023 \u5e74 1 \u6708 1 \u65e5\u81f3 2023 \u5e74 12 \u6708 31 \u65e5\u4e4b\u9593\u7684\u6240\u6709\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM YourTable WHERE YourDateField BETWEEN #01\/01\/2023# AND #12\/31\/2023#;<\/code><\/pre>\n<p>\u6ce8\u610f\uff0c\u5728 Access \u4e2d\uff0c\u65e5\u671f\u5fc5\u9808\u7528\u4e95\u865f\uff08#\uff09\u62ec\u8d77\u4f86\uff0c\u4ee5\u4fbf\u6b63\u78ba\u8b58\u5225\u3002<\/p>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8-is-null-%e6%9f%a5%e8%a9%a2%e7%a9%ba%e6%97%a5%e6%9c%9f-rdwQrSoDeJ\">4. \u4f7f\u7528 IS NULL \u67e5\u8a62\u7a7a\u65e5\u671f<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u4e2d\u7684\u65e5\u671f\u5b57\u6bb5\u53ef\u80fd\u6703\u6709\u7a7a\u503c\u3002\u82e5\u8981\u67e5\u8a62\u9019\u4e9b\u7a7a\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>IS NULL<\/code>\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u6240\u6709\u65e5\u671f\u5b57\u6bb5\u70ba\u7a7a\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>SELECT * FROM YourTable WHERE YourDateField IS NULL;<\/code><\/pre>\n<h2 id=\"5-%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%8c%96%e7%9a%84%e6%8a%80%e5%b7%a7-rdwQrSoDeJ\">5. \u65e5\u671f\u683c\u5f0f\u5316\u7684\u6280\u5de7<\/h2>\n<p>\u5728\u67e5\u8a62\u7d50\u679c\u4e2d\uff0c\u65e5\u671f\u7684\u986f\u793a\u683c\u5f0f\u4e5f\u53ef\u4ee5\u9032\u884c\u8abf\u6574\u3002\u4f7f\u7528 <code>Format()<\/code> \u51fd\u6578\u53ef\u4ee5\u81ea\u5b9a\u7fa9\u65e5\u671f\u7684\u986f\u793a\u683c\u5f0f\u3002\u4f8b\u5982\uff0c\u5c07\u65e5\u671f\u683c\u5f0f\u5316\u70ba <code>YYYY-MM-DD<\/code> \u7684\u683c\u5f0f\uff1a<\/p>\n<pre><code>SELECT Format(YourDateField, \"yyyy-mm-dd\") AS FormattedDate FROM YourTable;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rdwQrSoDeJ\">\u7e3d\u7d50<\/h2>\n<p>\u638c\u63e1 Access \u6578\u64da\u5eab\u7684\u65e5\u671f\u67e5\u8a62\u6280\u5de7\u5c0d\u65bc\u6578\u64da\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u7406\u89e3\u65e5\u671f\u683c\u5f0f\u3001\u4f7f\u7528\u5167\u5efa\u51fd\u6578\u3001\u9032\u884c\u7bc4\u570d\u67e5\u8a62\u3001\u67e5\u8a62\u7a7a\u503c\u4ee5\u53ca\u683c\u5f0f\u5316\u65e5\u671f\uff0c\u60a8\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u8655\u7406\u548c\u5206\u6790\u6578\u64da\u3002\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\uff0c\u9084\u80fd\u5e6b\u52a9\u60a8\u5728\u6578\u64da\u5206\u6790\u4e2d\u7372\u5f97\u66f4\u6e96\u78ba\u7684\u7d50\u679c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u6a5f\u69cb\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8f15\u9b06\u638c\u63e1 Access \u6578\u64da\u5eab\u65e5\u671f\u67e5\u8a62\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u5feb\u901f\u627e\u5230\u6240\u9700\u65e5\u671f\u8cc7\u6599\uff0c\u8b93\u67e5\u8a62\u8b8a\u5f97\u7c21\u55ae\u660e\u77ad\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-171907","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171907","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=171907"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171907\/revisions"}],"predecessor-version":[{"id":171908,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171907\/revisions\/171908"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=171907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=171907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=171907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}