{"id":174427,"date":"2024-11-07T21:46:21","date_gmt":"2024-11-07T13:46:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/174427\/"},"modified":"2024-11-07T21:46:22","modified_gmt":"2024-11-07T13:46:22","slug":"%e5%a6%82%e4%bd%95%e9%80%b2%e8%a1%8cmdb%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%88%e5%ba%ab%e6%93%8d%e4%bd%9c%ef%bc%9f-mdb%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%88%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/174427\/","title":{"rendered":"\u5982\u4f55\u9032\u884cMDB\u6578\u64da\u5eab\u5408\u5eab\u64cd\u4f5c\uff1f (mdb\u6578\u64da\u5eab\u5408\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e9%80%b2%e8%a1%8cmdb%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%88%e5%ba%ab%e6%93%8d%e4%bd%9c%ef%bc%9f-KMwjAbhyvb\">\u5982\u4f55\u9032\u884cMDB\u6578\u64da\u5eab\u5408\u5eab\u64cd\u4f5c\uff1f<\/h1>\n<p>MDB\uff08Microsoft Access Database\uff09\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u6578\u64da\u5eab\u683c\u5f0f\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5c0f\u578b\u61c9\u7528\u7a0b\u5e8f\u548c\u684c\u9762\u6578\u64da\u5eab\u7ba1\u7406\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5408\u4f75\u591a\u500bMDB\u6578\u64da\u5eab\u6210\u70ba\u4e00\u500b\u5fc5\u8981\u7684\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u9032\u884cMDB\u6578\u64da\u5eab\u7684\u5408\u5eab\u64cd\u4f5c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6b65\u9a5f\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e5%90%88%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-KMwjAbhyvb\">\u5408\u5eab\u64cd\u4f5c\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u65e5\u5e38\u7684\u6578\u64da\u7ba1\u7406\u4e2d\uff0c\u53ef\u80fd\u6703\u56e0\u70ba\u4e0d\u540c\u7684\u539f\u56e0\u9700\u8981\u5c07\u591a\u500bMDB\u6578\u64da\u5eab\u5408\u4f75\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u91cd\u8907\uff1a\u591a\u500b\u6578\u64da\u5eab\u4e2d\u53ef\u80fd\u5b58\u5728\u76f8\u540c\u7684\u6578\u64da\uff0c\u5408\u4f75\u53ef\u4ee5\u6d88\u9664\u91cd\u8907\u3002<\/li>\n<li>\u6578\u64da\u6574\u5408\uff1a\u5c07\u4e0d\u540c\u4f86\u6e90\u7684\u6578\u64da\u6574\u5408\u5230\u4e00\u500b\u6578\u64da\u5eab\u4e2d\uff0c\u4fbf\u65bc\u7ba1\u7406\u548c\u67e5\u8a62\u3002<\/li>\n<li>\u6027\u80fd\u512a\u5316\uff1a\u5408\u4f75\u6578\u64da\u5eab\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u6578\u91cf\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%90%88%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%9a%84%e6%ad%a5%e9%a9%9f-KMwjAbhyvb\">\u5408\u5eab\u64cd\u4f5c\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%80%ef%bc%9a%e6%ba%96%e5%82%99%e5%b7%a5%e4%bd%9c-KMwjAbhyvb\">\u6b65\u9a5f\u4e00\uff1a\u6e96\u5099\u5de5\u4f5c<\/h3>\n<p>\u5728\u9032\u884c\u5408\u5eab\u64cd\u4f5c\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u4fdd\u6240\u6709\u9700\u8981\u5408\u4f75\u7684MDB\u6578\u64da\u5eab\u90fd\u5df2\u7d93\u5099\u4efd\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u64cd\u4f5c\u904e\u7a0b\u4e2d\u51fa\u73fe\u610f\u5916\u60c5\u6cc1\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%8c%ef%bc%9a%e6%89%93%e9%96%8baccess-KMwjAbhyvb\">\u6b65\u9a5f\u4e8c\uff1a\u6253\u958bAccess<\/h3>\n<p>\u555f\u52d5Microsoft Access\uff0c\u7136\u5f8c\u9078\u64c7\u4e00\u500b\u7a7a\u767d\u6578\u64da\u5eab\u4f5c\u70ba\u5408\u4f75\u7684\u76ee\u6a19\u6578\u64da\u5eab\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%89%ef%bc%9a%e5%b0%8e%e5%85%a5%e6%95%b8%e6%93%9a-KMwjAbhyvb\">\u6b65\u9a5f\u4e09\uff1a\u5c0e\u5165\u6578\u64da<\/h3>\n<p>\u5728Access\u4e2d\uff0c\u4f7f\u7528\u201c\u5916\u90e8\u6578\u64da\u201d\u9078\u9805\u5361\u4e2d\u7684\u201c\u5c0e\u5165\u201d\u529f\u80fd\uff0c\u9078\u64c7\u201cAccess\u201d\u4f86\u5c0e\u5165\u5176\u4ed6MDB\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u5177\u9ad4\u64cd\u4f5c\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u9ede\u64ca\u201c\u5916\u90e8\u6578\u64da\u201d\u9078\u9805\u5361\u3002<\/li>\n<li>\u9078\u64c7\u201cAccess\u201d\u9078\u9805\u3002<\/li>\n<li>\u5728\u5f48\u51fa\u7684\u5c0d\u8a71\u6846\u4e2d\uff0c\u9078\u64c7\u8981\u5c0e\u5165\u7684MDB\u6587\u4ef6\u3002<\/li>\n<li>\u9078\u64c7\u8981\u5c0e\u5165\u7684\u8868\u683c\uff0c\u7136\u5f8c\u9ede\u64ca\u201c\u78ba\u5b9a\u201d\u3002<\/li>\n<\/ol>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e5%9b%9b%ef%bc%9a%e8%99%95%e7%90%86%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a-KMwjAbhyvb\">\u6b65\u9a5f\u56db\uff1a\u8655\u7406\u91cd\u8907\u6578\u64da<\/h3>\n<p>\u5728\u5c0e\u5165\u904e\u7a0b\u4e2d\uff0c\u53ef\u80fd\u6703\u9047\u5230\u91cd\u8907\u7684\u6578\u64da\u3002\u9019\u6642\u53ef\u4ee5\u4f7f\u7528Access\u7684\u67e5\u8a62\u529f\u80fd\u4f86\u6aa2\u67e5\u548c\u522a\u9664\u91cd\u8907\u7684\u8a18\u9304\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u67e5\u627e\u91cd\u8907\u6578\u64da\uff1a<\/p>\n<pre><code>SELECT FieldName, COUNT(*)\nFROM TableName\nGROUP BY FieldName\nHAVING COUNT(*) &gt; 1;<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%94%ef%bc%9a%e4%bf%9d%e5%ad%98%e5%90%88%e4%bd%b5%e5%be%8c%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-KMwjAbhyvb\">\u6b65\u9a5f\u4e94\uff1a\u4fdd\u5b58\u5408\u4f75\u5f8c\u7684\u6578\u64da\u5eab<\/h3>\n<p>\u5b8c\u6210\u6578\u64da\u5c0e\u5165\u548c\u91cd\u8907\u6578\u64da\u8655\u7406\u5f8c\uff0c\u8a18\u5f97\u4fdd\u5b58\u5408\u4f75\u5f8c\u7684\u6578\u64da\u5eab\u3002\u53ef\u4ee5\u9078\u64c7\u201c\u6587\u4ef6\u201d\u9078\u9805\u5361\uff0c\u7136\u5f8c\u9ede\u64ca\u201c\u4fdd\u5b58\u201d\u4f86\u4fdd\u5b58\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-KMwjAbhyvb\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u5408\u4f75\u6578\u64da\u5eab\u4e4b\u524d\uff0c\u78ba\u4fdd\u6240\u6709\u6578\u64da\u5eab\u7684\u7d50\u69cb\u76f8\u540c\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5c0e\u5165\u904e\u7a0b\u4e2d\u7684\u932f\u8aa4\u3002<\/li>\n<li>\u5728\u8655\u7406\u91cd\u8907\u6578\u64da\u6642\uff0c\u9700\u8b39\u614e\u64cd\u4f5c\uff0c\u4ee5\u514d\u522a\u9664\u91cd\u8981\u7684\u6578\u64da\u3002<\/li>\n<li>\u5408\u4f75\u5f8c\u7684\u6578\u64da\u5eab\u61c9\u9032\u884c\u6e2c\u8a66\uff0c\u78ba\u4fdd\u6240\u6709\u6578\u64da\u6b63\u78ba\u7121\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KMwjAbhyvb\">\u7e3d\u7d50<\/h2>\n<p>MDB\u6578\u64da\u5eab\u7684\u5408\u5eab\u64cd\u4f5c\u662f\u4e00\u500b\u91cd\u8981\u7684\u6578\u64da\u7ba1\u7406\u904e\u7a0b\uff0c\u901a\u904e\u6b63\u78ba\u7684\u6b65\u9a5f\u53ef\u4ee5\u6709\u6548\u5730\u6574\u5408\u591a\u500b\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u70ba\u4e86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u9084\u662f\u70ba\u4e86\u6578\u64da\u6574\u5408\uff0c\u638c\u63e1\u5408\u5eab\u64cd\u4f5c\u7684\u6280\u5de7\u90fd\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u9032\u884cMDB\u6578\u64da\u5eab\u5408\u5eab\u64cd\u4f5c\uff0c\u638c\u63e1\u5408\u4f75\u6578\u64da\u7684\u6280\u5de7\u8207\u6b65\u9a5f\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\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-174427","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174427","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=174427"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174427\/revisions"}],"predecessor-version":[{"id":174428,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174427\/revisions\/174428"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=174427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=174427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=174427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}