{"id":66413,"date":"2024-10-14T17:18:17","date_gmt":"2024-10-14T09:18:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66413\/"},"modified":"2024-10-14T17:18:17","modified_gmt":"2024-10-14T09:18:17","slug":"mssql%e6%9c%80%e5%a4%a7id%e6%9f%a5%e8%a9%a2%e9%9b%86%e7%9a%84%e5%bd%99%e7%b8%bd%ef%bc%88mssql-max-id%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66413\/","title":{"rendered":"MSSQL\u6700\u5927ID\u67e5\u8a62\u96c6\u7684\u5f59\u7e3d\uff08mssql max id\uff09"},"content":{"rendered":"<h1 id=\"mssql%e6%9c%80%e5%a4%a7id%e6%9f%a5%e8%a9%a2%e9%9b%86%e7%9a%84%e5%bd%99%e7%b8%bd%ef%bc%88mssql-max-id%ef%bc%89-RFOxVafOoV\">MSSQL\u6700\u5927ID\u67e5\u8a62\u96c6\u7684\u5f59\u7e3d\uff08mssql max id\uff09<\/h1>\n<p>\u5728\u4f7f\u7528Microsoft SQL Server\uff08MSSQL\uff09\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u67e5\u8a62\u6700\u5927ID\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u9019\u901a\u5e38\u7528\u65bc\u78ba\u5b9a\u8868\u4e2d\u6700\u65b0\u63d2\u5165\u7684\u8a18\u9304\uff0c\u6216\u5728\u9032\u884c\u6578\u64da\u9077\u79fb\u548c\u6574\u5408\u6642\uff0c\u78ba\u4fdd\u4e0d\u6703\u91cd\u8907\u63d2\u5165\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728MSSQL\u4e2d\u67e5\u8a62\u6700\u5927ID\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%9f%a5%e8%a9%a2%e6%9c%80%e5%a4%a7id-RFOxVafOoV\">\u70ba\u4ec0\u9ebc\u9700\u8981\u67e5\u8a62\u6700\u5927ID<\/h2>\n<p>\u67e5\u8a62\u6700\u5927ID\u7684\u539f\u56e0\u6709\u5f88\u591a\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u60c5\u5883\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u5728\u63d2\u5165\u65b0\u6578\u64da\u4e4b\u524d\uff0c\u78ba\u4fdd\u4e0d\u6703\u91cd\u8907ID\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u4e86\u89e3\u6700\u65b0\u7684\u6578\u64da\u63d2\u5165\u60c5\u6cc1\uff0c\u4fbf\u65bc\u9032\u884c\u5f8c\u7e8c\u5206\u6790\u3002<\/li>\n<li><strong>\u6578\u64da\u9077\u79fb\uff1a<\/strong>\u5728\u5c07\u6578\u64da\u5f9e\u4e00\u500b\u8868\u9077\u79fb\u5230\u53e6\u4e00\u500b\u8868\u6642\uff0c\u78ba\u4fddID\u7684\u552f\u4e00\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e6%9c%80%e5%a4%a7id%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-RFOxVafOoV\">\u67e5\u8a62\u6700\u5927ID\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u5728MSSQL\u4e2d\uff0c\u67e5\u8a62\u6700\u5927ID\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT MAX(column_name) AS MaxID\nFROM table_name;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>column_name<\/code>\u662f\u4f60\u60f3\u8981\u67e5\u8a62\u7684ID\u5217\u7684\u540d\u7a31\uff0c\u800c<code>table_name<\/code>\u5247\u662f\u5305\u542b\u8a72\u5217\u7684\u8868\u540d\u3002<\/p>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e6%9f%a5%e8%a9%a2%e6%9c%80%e5%a4%a7id-RFOxVafOoV\">\u7bc4\u4f8b\uff1a\u67e5\u8a62\u6700\u5927ID<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>Employees<\/code>\u7684\u8868\uff0c\u4e26\u4e14\u8a72\u8868\u4e2d\u6709\u4e00\u500b\u540d\u70ba<code>EmployeeID<\/code>\u7684\u5217\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u7372\u53d6\u6700\u5927ID\uff1a<\/p>\n<pre><code>SELECT MAX(EmployeeID) AS MaxEmployeeID\nFROM Employees;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de<code>Employees<\/code>\u8868\u4e2d\u6700\u5927\u7684<code>EmployeeID<\/code>\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8group-by%e6%9f%a5%e8%a9%a2%e6%9c%80%e5%a4%a7id-RFOxVafOoV\">\u4f7f\u7528GROUP BY\u67e5\u8a62\u6700\u5927ID<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u53ef\u80fd\u9700\u8981\u6839\u64da\u5176\u4ed6\u5217\u4f86\u5206\u7d44\u67e5\u8a62\u6700\u5927ID\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u8981\u67e5\u8a62\u6bcf\u500b\u90e8\u9580\u7684\u6700\u5927\u54e1\u5de5ID\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT DepartmentID, MAX(EmployeeID) AS MaxEmployeeID\nFROM Employees\nGROUP BY DepartmentID;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u6bcf\u500b\u90e8\u9580\u7684\u6700\u5927\u54e1\u5de5ID\uff0c\u5e6b\u52a9\u6211\u5011\u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u7684\u5206\u4f48\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e6%80%a7%e8%83%bd%e8%80%83%e9%87%8f-RFOxVafOoV\">\u6027\u80fd\u8003\u91cf<\/h2>\n<p>\u5728\u67e5\u8a62\u6700\u5927ID\u6642\uff0c\u6027\u80fd\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\uff0c\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u78ba\u4fddID\u5217\u4e0a\u6709\u9069\u7576\u7684\u7d22\u5f15\uff0c\u9019\u6a23\u5728\u57f7\u884c\u67e5\u8a62\u6642\uff0c\u6578\u64da\u5eab\u53ef\u4ee5\u66f4\u5feb\u5730\u5b9a\u4f4d\u5230\u6240\u9700\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-RFOxVafOoV\">\u7d50\u8ad6<\/h2>\n<p>\u67e5\u8a62MSSQL\u4e2d\u7684\u6700\u5927ID\u662f\u4e00\u500b\u57fa\u672c\u4f46\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u7121\u8ad6\u662f\u5728\u6578\u64da\u5b8c\u6574\u6027\u3001\u6578\u64da\u5206\u6790\u9084\u662f\u6578\u64da\u9077\u79fb\u65b9\u9762\u90fd\u626e\u6f14\u8457\u95dc\u9375\u89d2\u8272\u3002\u901a\u904e\u4f7f\u7528\u6b63\u78ba\u7684SQL\u8a9e\u6cd5\u548c\u6700\u4f73\u5be6\u8e10\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u9ad8\u6548\u904b\u884c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u64f4\u5c55\u60a8\u7684\u696d\u52d9\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MSSQL\u4e2d\u6700\u5927ID\u67e5\u8a62\u96c6\u7684\u5f59\u7e3d\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7372\u53d6\u548c\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u6700\u5927ID\u503c\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-66413","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66413","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=66413"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66413\/revisions"}],"predecessor-version":[{"id":66414,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66413\/revisions\/66414"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}