{"id":5159,"date":"2019-08-15T08:14:04","date_gmt":"2019-08-15T00:14:04","guid":{"rendered":"http:\/\/www.hefeiyu.com\/?p=5159"},"modified":"2019-08-15T08:14:04","modified_gmt":"2019-08-15T00:14:04","slug":"oracle%e4%b8%admerge-into%e7%94%a8%e6%b3%95%e6%80%bb%e7%bb%93","status":"publish","type":"post","link":"https:\/\/www.hefeiyu.com\/?p=5159","title":{"rendered":"Oracle\u4e2dMerge into\u7528\u6cd5\u603b\u7ed3"},"content":{"rendered":"<p><strong>\u8d77\u56e0<\/strong>\uff1a<\/p>\n<p>\u524d\u6bb5\u65f6\u95f4\uff0c\u56e0\u4e3a\u6d89\u53ca\u5230\u4e00\u5f20\u8868\u7684\u5927\u6570\u636e\u64cd\u4f5c\uff0c\u8981\u540c\u65f6\u8fdb\u884c\u589e\u5220\u6539\uff0c\u6211\u8ddf\u5e08\u5085\u60f3\u4e86\u5f88\u591a\u4f18\u5316\u529e\u6cd5\uff0c\u7ed3\u679c\u90fd\u4e0d\u5c3d\u4eba\u610f\u3002\u521a\u5f00\u59cb\u7528\u7684\u5c31\u662f\u539f\u59cb\u7b97\u6cd5\uff0c\u5148\u66f4\u65b0\u73b0\u6709\u8bb0\u5f55\uff0c\u518d\u63d2\u5165\u6ee1\u8db3\u8981\u6c42\u7684\u5176\u4ed6\u8bb0\u5f55\uff0c\u6700\u540e\u518d\u5220\u9664\u591a\u4f59\u8bb0\u5f55\uff0c\u4f46\u662f\u5c11\u91cf\u6570\u636e\u8fd8\u53ef\u4ee5\uff0c10W\u6761\u6570\u636e\u5c31\u4e0d\u884c\u4e86\uff0c\u524d\u53f0\u7684\u8d85\u65f6\u65f6\u95f4\u662f60s\uff0c\u8fdc\u8fdc\u65e0\u6cd5\u6ee1\u8db3\u8981\u6c42\u3002\u4e4b\u540e\u53c8\u60f3\u529e\u6cd5\u5c06\u4efb\u52a1\u8fdb\u884c\u62c6\u5206\uff0c\u6839\u636e\u6bcf\u6761\u8bb0\u5f55\u6d41\u6c34\u53f7\u5c3e\u5b57\u7b26\u4e0d\u540c\u8fdb\u884c\u62c6\u5206\uff0c\u7528\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c\uff0c\u4e00\u76f4\u62c6\u5206\u621010\u4e2a\u4efb\u52a1\uff08\u5c3e\u5b57\u7b26\u5206\u522b\u4e3a0\u30011\u30012\u30013 &#8230; 9\uff09\uff0c\u7528\u5341\u4e2a\u7ebf\u7a0b\u540c\u65f6\u53bb\u6267\u884c\uff0c\u4f46\u662f\u65f6\u95f4\u8fd8\u662f\u5f88\u6162\uff0c\u6700\u591a\u5904\u740613W\u6761\u6570\u636e\u5de6\u53f3\uff0c50W\u6761\u6570\u636e\u5c31\u8ba9\u4eba\u65e0\u6cd5\u5fcd\u53d7\u4e86\u3002\u6700\u540e\u65e0\u5948\u53ea\u597d\u628a\u4e4b\u524d\u7684\u4f18\u5316\u5168\u90e8\u94f2\u6389\uff0c\u6539\u4e3amerge into\u64cd\u4f5c\uff0c\u518d\u505a\u4e86\u4e00\u4e9b\u4f18\u5316\uff0c\u5c0650W\u6761\u6570\u636e\u7684\u5355\u7ebf\u7a0b\u8017\u65f6\u7f29\u77ed\u5230\u4e09\u5341\u591a\u79d2\uff0c\u7279\u6b64\uff0c\u5c06merge into\u7684\u7528\u6cd5\u603b\u7ed3\u5982\u4e0b\uff1a\uff08http:\/\/blog.csdn.net\/yuzhic\/article\/details\/1896878\uff09<\/p>\n<p>\u6709\u4e00\u4e2a\u8868T\uff0c\u6709\u4e24\u4e2a\u5b57\u6bb5a\u3001b\uff0c\u6211\u4eec\u60f3\u5728\u8868T\u4e2d\u505aInsert\/Update\uff0c\u5982\u679c\u6761\u4ef6\u6ee1\u8db3\uff0c\u5219\u66f4\u65b0T\u4e2db\u7684\u503c\uff0c\u5426\u5219\u5728T\u4e2d\u63d2\u5165\u4e00\u6761\u8bb0\u5f55\u3002\u5728Microsoft\u7684SQL\u8bed\u6cd5\u4e2d\uff0c\u5f88\u7b80\u5355\u7684\u4e00\u53e5\u5224\u65ad\u5c31\u53ef\u4ee5\u4e86\uff0cSQL Server\u4e2d\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>if exists(select <strong>1<\/strong> from T where T.a='1001' )\r\n    update T set T.b=<strong>2<\/strong> Where T.a='1001' \r\nelse \r\n    insert into T(a,b) values('1001',<strong>2<\/strong>);<\/pre>\n<p>Oracle\u4e2d\uff0c\u8981\u5b9e\u73b0\u76f8\u540c\u7684\u529f\u80fd\uff0c\u8981\u7528\u5230Merge into\u6765\u5b9e\u73b0\uff08Oracle 9i\u5f15\u5165\u7684\u529f\u80fd\uff09\uff0c\u5176\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>MERGE INTO table_name alias1 \r\nUSING (table|view|sub_query) alias2\r\nON (join condition) \r\nWHEN MATCHED THEN \r\n    UPDATE table_name \r\n    SET col1 = col_val1, \r\n           col2 = col_val2 \r\nWHEN NOT MATCHED THEN \r\n    INSERT (column_list) VALUES (column_values);<\/pre>\n<p>\u4e25\u683c\u610f\u4e49\u4e0a\u8bb2\uff0c<strong>\u201d\u5728\u4e00\u4e2a\u540c\u65f6\u5b58\u5728Insert\u548cUpdate\u8bed\u6cd5\u7684Merge\u8bed\u53e5\u4e2d\uff0c\u603b\u5171Insert\/Update\u7684\u8bb0\u5f55\u6570\uff0c\u5c31\u662fUsing\u8bed\u53e5\u4e2dalias2\u7684\u8bb0\u5f55\u6570\u201d\u3002<\/strong>\u6240\u4ee5\uff0c\u8981\u5b9e\u73b0\u4e0a\u9762\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n<pre>MERGE INTO T T1\r\nUSING (SELECT '1001' AS a,<strong>2<\/strong> AS b FROM dual) T2\r\nON ( T1.a=T2.a)\r\nWHEN MATCHED THEN\r\n    UPDATE SET T1.b = T2.b\r\nWHEN NOT MATCHED THEN \r\n    INSERT (a,b) VALUES(T2.a,T2.b);<\/pre>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"https:\/\/www.hefeiyu.com\">\u8d6b\u975e\u57df<\/a> &raquo; <a href=\"https:\/\/www.hefeiyu.com\/?p=5159\">Oracle\u4e2dMerge into\u7528\u6cd5\u603b\u7ed3<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u8d77\u56e0\uff1a \u524d\u6bb5\u65f6\u95f4\uff0c\u56e0\u4e3a\u6d89\u53ca\u5230\u4e00\u5f20\u8868\u7684\u5927\u6570\u636e\u64cd\u4f5c\uff0c\u8981\u540c\u65f6\u8fdb\u884c\u589e\u5220\u6539\uff0c\u6211\u8ddf\u5e08\u5085\u60f3\u4e86\u5f88\u591a\u4f18\u5316\u529e\u6cd5\uff0c\u7ed3\u679c\u90fd\u4e0d\u5c3d\u4eba\u610f\u3002\u521a\u5f00\u59cb\u7528\u7684\u5c31\u662f\u539f\u59cb\u7b97\u6cd5\uff0c\u5148\u66f4\u65b0\u73b0\u6709\u8bb0\u5f55\uff0c\u518d\u63d2\u5165\u6ee1\u8db3\u8981\u6c42\u7684\u5176\u4ed6\u8bb0\u5f55\uff0c\u6700\u540e\u518d\u5220\u9664\u591a\u4f59\u8bb0\u5f55\uff0c\u4f46\u662f\u5c11\u91cf\u6570\u636e\u8fd8\u53ef\u4ee5\uff0c10W\u6761\u6570\u636e\u5c31\u4e0d\u884c\u4e86\uff0c\u524d\u53f0\u7684\u8d85\u65f6\u65f6\u95f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[724,195,199],"class_list":["post-5159","post","type-post","status-publish","format-standard","hentry","category-unix","tag-merge","tag-195","tag-199"],"_links":{"self":[{"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/posts\/5159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5159"}],"version-history":[{"count":1,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/posts\/5159\/revisions"}],"predecessor-version":[{"id":5160,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=\/wp\/v2\/posts\/5159\/revisions\/5160"}],"wp:attachment":[{"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hefeiyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}