{"id":168625,"date":"2024-11-06T14:18:22","date_gmt":"2024-11-06T06:18:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/168625\/"},"modified":"2024-11-06T14:18:23","modified_gmt":"2024-11-06T06:18:23","slug":"sybase-ase-v15-7-%e6%96%b0%e7%89%88%e6%9c%ac%e6%94%af%e6%8c%81-merge-%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/168625\/","title":{"rendered":"Sybase ASE V15.7 \u65b0\u7248\u672c\u652f\u6301 MERGE \u8a9e\u53e5"},"content":{"rendered":"<h1 id=\"sybase-ase-v15-7-%e6%96%b0%e7%89%88%e6%9c%ac%e6%94%af%e6%8c%81-merge-%e8%aa%9e%e5%8f%a5-URbzAVcfpK\">Sybase ASE V15.7 \u65b0\u7248\u672c\u652f\u6301 MERGE \u8a9e\u53e5<\/h1>\n<p>Sybase Adaptive Server Enterprise (ASE) \u662f\u4e00\u6b3e\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u5f0f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u7279\u5225\u662f\u5728\u4f01\u696d\u74b0\u5883\u4e2d\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0cSybase ASE \u4e0d\u65b7\u66f4\u65b0\u4ee5\u6eff\u8db3\u7528\u6236\u7684\u9700\u6c42\u3002\u6700\u65b0\u7248\u672c V15.7 \u5f15\u5165\u4e86\u5c0d MERGE \u8a9e\u53e5\u7684\u652f\u6301\uff0c\u9019\u4e00\u529f\u80fd\u7684\u589e\u52a0\u70ba\u6578\u64da\u8655\u7406\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u9748\u6d3b\u6027\u548c\u6548\u7387\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-merge-%e8%aa%9e%e5%8f%a5%ef%bc%9f-URbzAVcfpK\">\u4ec0\u9ebc\u662f MERGE \u8a9e\u53e5\uff1f<\/h2>\n<p>MERGE \u8a9e\u53e5\u662f\u4e00\u7a2e SQL \u8a9e\u53e5\uff0c\u5141\u8a31\u7528\u6236\u5728\u55ae\u4e00\u64cd\u4f5c\u4e2d\u540c\u6642\u57f7\u884c\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\u3002\u9019\u5c0d\u65bc\u9700\u8981\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\u4f86\u66f4\u65b0\u6578\u64da\u7684\u60c5\u6cc1\u7279\u5225\u6709\u7528\u3002\u4f7f\u7528 MERGE \u8a9e\u53e5\uff0c\u53ef\u4ee5\u6e1b\u5c11\u591a\u6b21\u8a2a\u554f\u6578\u64da\u5eab\u7684\u9700\u8981\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<h2 id=\"merge-%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-URbzAVcfpK\">MERGE \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<pre><code>\nMERGE INTO target_table AS target\nUSING source_table AS source\nON target.id = source.id\nWHEN MATCHED THEN\n    UPDATE SET target.column1 = source.column1\nWHEN NOT MATCHED THEN\n    INSERT (column1, column2) VALUES (source.column1, source.column2)\nWHEN NOT MATCHED BY SOURCE THEN\n    DELETE;\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u8a9e\u6cd5\u4e2d\uff0c<code>target_table<\/code> \u662f\u76ee\u6a19\u8868\uff0c<code>source_table<\/code> \u662f\u4f86\u6e90\u8868\u3002\u6839\u64da <code>ON<\/code> \u5b50\u53e5\u4e2d\u6307\u5b9a\u7684\u689d\u4ef6\uff0c\u7576\u5169\u500b\u8868\u4e2d\u7684\u8a18\u9304\u5339\u914d\u6642\uff0c\u5c07\u57f7\u884c\u66f4\u65b0\u64cd\u4f5c\uff1b\u5982\u679c\u4f86\u6e90\u8868\u4e2d\u6709\u65b0\u8a18\u9304\u800c\u76ee\u6a19\u8868\u4e2d\u6c92\u6709\uff0c\u5247\u57f7\u884c\u63d2\u5165\u64cd\u4f5c\uff1b\u5982\u679c\u76ee\u6a19\u8868\u4e2d\u7684\u8a18\u9304\u5728\u4f86\u6e90\u8868\u4e2d\u4e0d\u5b58\u5728\uff0c\u5247\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"sybase-ase-v15-7-%e4%b8%ad%e7%9a%84-merge-%e8%aa%9e%e5%8f%a5%e7%89%b9%e6%80%a7-URbzAVcfpK\">Sybase ASE V15.7 \u4e2d\u7684 MERGE \u8a9e\u53e5\u7279\u6027<\/h2>\n<p>\u5728 Sybase ASE V15.7 \u4e2d\uff0cMERGE \u8a9e\u53e5\u7684\u5f15\u5165\u4f7f\u5f97\u6578\u64da\u64cd\u4f5c\u66f4\u52a0\u9ad8\u6548\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e3b\u8981\u7279\u6027\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u901a\u904e\u5408\u4f75\u591a\u500b\u64cd\u4f5c\uff0c\u6e1b\u5c11\u4e86\u5c0d\u6578\u64da\u5eab\u7684\u8a2a\u554f\u6b21\u6578\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u6027\u80fd\u3002<\/li>\n<li><strong>\u7c21\u5316\u4ee3\u78bc\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u7528\u66f4\u5c11\u7684\u4ee3\u78bc\u5be6\u73fe\u8907\u96dc\u7684\u6578\u64da\u64cd\u4f5c\uff0c\u9019\u4f7f\u5f97\u7dad\u8b77\u548c\u7406\u89e3\u4ee3\u78bc\u8b8a\u5f97\u66f4\u52a0\u5bb9\u6613\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>MERGE \u8a9e\u53e5\u652f\u6301\u591a\u7a2e\u689d\u4ef6\uff0c\u53ef\u4ee5\u6839\u64da\u696d\u52d9\u9700\u6c42\u9748\u6d3b\u8abf\u6574\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8-merge-%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%af%a6%e9%9a%9b%e6%a1%88%e4%be%8b-URbzAVcfpK\">\u4f7f\u7528 MERGE \u8a9e\u53e5\u7684\u5be6\u969b\u6848\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba <code>employees<\/code> \u7684\u76ee\u6a19\u8868\u548c\u4e00\u500b\u540d\u70ba <code>new_employees<\/code> \u7684\u4f86\u6e90\u8868\u3002\u76ee\u6a19\u8868\u4e2d\u5b58\u5132\u4e86\u73fe\u6709\u54e1\u5de5\u7684\u4fe1\u606f\uff0c\u800c\u4f86\u6e90\u8868\u4e2d\u5b58\u5132\u4e86\u65b0\u54e1\u5de5\u7684\u4fe1\u606f\u3002\u4f7f\u7528 MERGE \u8a9e\u53e5\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u65b0\u54e1\u5de5\u7684\u4fe1\u606f\u5408\u4f75\u5230\u76ee\u6a19\u8868\u4e2d\uff1a<\/p>\n<pre><code>\nMERGE INTO employees AS e\nUSING new_employees AS n\nON e.employee_id = n.employee_id\nWHEN MATCHED THEN\n    UPDATE SET e.name = n.name, e.department = n.department\nWHEN NOT MATCHED THEN\n    INSERT (employee_id, name, department) VALUES (n.employee_id, n.name, n.department);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u7576\u54e1\u5de5 ID \u5339\u914d\u6642\uff0c\u5c07\u66f4\u65b0\u54e1\u5de5\u7684\u59d3\u540d\u548c\u90e8\u9580\uff1b\u5982\u679c\u6c92\u6709\u5339\u914d\u7684\u8a18\u9304\uff0c\u5247\u63d2\u5165\u65b0\u54e1\u5de5\u7684\u8a18\u9304\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-URbzAVcfpK\">\u7d50\u8ad6<\/h2>\n<p>Sybase ASE V15.7 \u7684 MERGE \u8a9e\u53e5\u652f\u6301\u70ba\u6578\u64da\u5eab\u64cd\u4f5c\u5e36\u4f86\u4e86\u986f\u8457\u7684\u4fbf\u5229\u6027\u548c\u6548\u7387\u3002\u901a\u904e\u7c21\u5316\u6578\u64da\u8655\u7406\u6d41\u7a0b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u5c08\u6ce8\u65bc\u696d\u52d9\u908f\u8f2f\uff0c\u800c\u4e0d\u5fc5\u64d4\u5fc3\u7e41\u7463\u7684\u6578\u64da\u64cd\u4f5c\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u9019\u4e00\u529f\u80fd\u5c07\u6210\u70ba\u4f01\u696d\u6578\u64da\u7ba1\u7406\u7684\u91cd\u8981\u5de5\u5177\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u5176\u4ed6\u670d\u52d9\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Discover Sybase ASE V15.7&#8217;s new support for the MERGE statement, enhancing data manipulation and streamlining database operations.<\/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-168625","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168625","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=168625"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168625\/revisions"}],"predecessor-version":[{"id":168626,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168625\/revisions\/168626"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=168625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=168625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=168625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}