{"id":199785,"date":"2025-05-06T08:59:25","date_gmt":"2025-05-06T00:59:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199785\/"},"modified":"2025-05-06T08:59:25","modified_gmt":"2025-05-06T00:59:25","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e8%ae%a8oracle%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%ad%e7%9a%84%e5%87%8f%e6%b3%95%e8%bf%90%e7%ae%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199785\/","title":{"rendered":"\u6df1\u5165\u63a2\u8ba8Oracle\u6570\u636e\u5e93\u4e2d\u7684\u51cf\u6cd5\u8fd0\u7b97"},"content":{"rendered":"

<\/b> <\/p>\n

\u6df1\u5165\u63a2\u8ba8Oracle\u6570\u636e\u5e93\u4e2d\u7684\u51cf\u6cd5\u8fd0\u7b97<\/h1>\n

\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762\u4e3b\u673a\u5b9d\u8d1d\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2a\u6570\u636e\u5e93\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300a\u6df1\u5165\u63a2\u8ba8Oracle\u6570\u636e\u5e93\u4e2d\u7684\u51cf\u6cd5\u8fd0\u7b97\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01<\/p>\n

Oracle\u6570\u636e\u5e93\u4f5c\u4e3a\u4e00\u79cd\u529f\u80fd\u5f3a\u5927\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u8fd0\u7b97\u64cd\u4f5c\u6765\u6ee1\u8db3\u7528\u6237\u7684\u9700\u6c42\u3002\u5728\u65e5\u5e38\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u4e2d\uff0c\u51cf\u6cd5\u64cd\u4f5c\u662f\u4e00\u4e2a\u5e38\u89c1\u4e14\u91cd\u8981\u7684\u8fd0\u7b97\uff0c\u5b83\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u6570\u636e\u7684\u51cf\u6cd5\u8fd0\u7b97\uff0c\u4ece\u800c\u5f97\u5230\u6211\u4eec\u6240\u9700\u7684\u7ed3\u679c\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u8ba8\u8bbaOracle\u6570\u636e\u5e93\u4e2d\u51cf\u6cd5\u64cd\u4f5c\u7684\u76f8\u5173\u6280\u5de7\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u8fd0\u7528\u8fd9\u4e00\u529f\u80fd\u3002<\/p>\n

1. \u51cf\u6cd5\u64cd\u4f5c\u7684\u57fa\u672c\u6982\u5ff5<\/h3>\n

\u5728Oracle\u6570\u636e\u5e93\u4e2d\uff0c\u51cf\u6cd5\u64cd\u4f5c\u662f\u901a\u8fc7MINUS<\/code>\u5173\u952e\u5b57\u6765\u5b9e\u73b0\u7684\u3002MINUS<\/code>\u64cd\u4f5c\u7b26\u7528\u4e8e\u4ece\u7b2c\u4e00\u4e2a\u67e5\u8be2\u7ed3\u679c\u4e2d\u9009\u62e9\u6240\u6709\u4e0d\u5728\u7b2c\u4e8c\u4e2a\u67e5\u8be2\u7ed3\u679c\u4e2d\u7684\u884c\uff0c\u5373\u6c42\u4e24\u4e2a\u7ed3\u679c\u96c6\u7684\u5dee\u96c6\u3002\u901a\u8fc7\u51cf\u6cd5\u64cd\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u7b5b\u9009\u51fa\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u7684\u6570\u636e\uff0c\u5e76\u5bf9\u6570\u636e\u8fdb\u884c\u8fdb\u4e00\u6b65\u5206\u6790\u548c\u5904\u7406\u3002<\/p>\n

2. \u51cf\u6cd5\u64cd\u4f5c\u7684\u8bed\u6cd5<\/h3>\n

\u51cf\u6cd5\u64cd\u4f5c\u7684\u8bed\u6cd5\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

SELECT column1, column2, ...\nFROM table1\nMINUS\nSELECT column1, column2, ...\nFROM table2;<\/pre>\n
\u5176\u4e2d\uff0cSELECT<\/code>\u8bed\u53e5\u7528\u4e8e\u6307\u5b9a\u9700\u8981\u68c0\u7d22\u7684\u5217\u548c\u8868\uff0cFROM<\/code>\u5173\u952e\u5b57\u7528\u4e8e\u6307\u5b9a\u6570\u636e\u6765\u6e90\uff0cMINUS<\/code>\u5173\u952e\u5b57\u7528\u4e8e\u6267\u884c\u51cf\u6cd5\u64cd\u4f5c\u3002<\/p>\n
3. \u51cf\u6cd5\u64cd\u4f5c\u7684\u793a\u4f8b<\/h3>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e24\u4e2a\u8868table1<\/code>\u548ctable2<\/code>\uff0c\u5b83\u4eec\u7684\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n
table1:\nid  | name\n1   | Alice\n2   | Bob\n3   | Charlie\n\ntable2:\nid  | name\n2   | Bob\n3   | Charlie\n4   | David<\/pre>\n
\u6211\u4eec\u60f3\u8981\u4ecetable1<\/code>\u4e2d\u51cf\u53bbtable2<\/code>\u4e2d\u7684\u6570\u636e\uff0c\u5f97\u5230\u5dee\u96c6\u3002\u6211\u4eec\u53ef\u4ee5\u6267\u884c\u5982\u4e0b\u7684SQL\u67e5\u8be2\uff1a<\/p>\n
SELECT id, name\nFROM table1\nMINUS\nSELECT id, name\nFROM table2;<\/pre>\n
\u6267\u884c\u4e0a\u8ff0\u67e5\u8be2\u540e\uff0c\u5c06\u5f97\u5230\u5982\u4e0b\u7ed3\u679c\uff1a<\/p>\n
id  | name\n1   | Alice<\/pre>\n
\u53ef\u4ee5\u770b\u5230\uff0c\u6839\u636e\u51cf\u6cd5\u64cd\u4f5c\u7684\u5b9a\u4e49\uff0c\u7ed3\u679c\u4e2d\u53ea\u5269\u4e0btable1<\/code>\u4e2d\u4e0d\u5728table2<\/code>\u4e2d\u7684\u6570\u636e\u3002<\/p>\n
4. \u51cf\u6cd5\u64cd\u4f5c\u7684\u6269\u5c55\u793a\u4f8b<\/h3>\n
\u9664\u4e86\u7b80\u5355\u7684\u4e24\u8868\u51cf\u6cd5\u64cd\u4f5c\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7\u5b50\u67e5\u8be2\u3001\u8054\u5408\u67e5\u8be2\u7b49\u65b9\u5f0f\u8fdb\u884c\u66f4\u590d\u6742\u7684\u51cf\u6cd5\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5b50\u67e5\u8be2\u6765\u5b9e\u73b0\u5bf9\u591a\u4e2a\u8868\u7684\u51cf\u6cd5\u64cd\u4f5c\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n
SELECT id, name\nFROM table1\nMINUS\n(\n    SELECT id, name\n    FROM table2\n    UNION\n    SELECT id, name\n    FROM table3\n);<\/pre>\n
\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5148\u6267\u884ctable2<\/code>\u548ctable3<\/code>\u7684\u8054\u5408\u67e5\u8be2\uff0c\u7136\u540e\u5c06\u7ed3\u679c\u4f5c\u4e3a\u5b50\u67e5\u8be2\u7528\u4e8e\u51cf\u6cd5\u64cd\u4f5c\uff0c\u4ece\u800c\u83b7\u53d6table1<\/code>\u76f8\u5bf9\u4e8etable2<\/code>\u548ctable3<\/code>\u7684\u5dee\u96c6\u3002<\/p>\n
\u7ed3\u8bed<\/h3>\n
\u901a\u8fc7\u4ee5\u4e0a\u7684\u4ecb\u7ecd\u548c\u793a\u4f8b\uff0c\u76f8\u4fe1\u8bfb\u8005\u5bf9Oracle\u6570\u636e\u5e93\u4e2d\u51cf\u6cd5\u64cd\u4f5c\u6709\u4e86\u66f4\u6df1\u5165\u7684\u7406\u89e3\u3002\u51cf\u6cd5\u64cd\u4f5c\u662f\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\u5e38\u7528\u4e14\u5b9e\u7528\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u9ad8\u6548\u5730\u5904\u7406\u6570\u636e\u5e76\u83b7\u5f97\u6211\u4eec\u60f3\u8981\u7684\u7ed3\u679c\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8bfb\u8005\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u4e1a\u52a1\u9700\u6c42\uff0c\u7075\u6d3b\u8fd0\u7528\u51cf\u6cd5\u64cd\u4f5c\uff0c\u63d0\u9ad8\u6570\u636e\u5e93\u67e5\u8be2\u7684\u6548\u7387\u548c\u51c6\u786e\u6027\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u8bfb\u8005\u6709\u6240\u5e2e\u52a9\uff0c\u8c22\u8c22\u9605\u8bfb\uff01<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u300a\u6df1\u5165\u63a2\u8ba8Oracle\u6570\u636e\u5e93\u4e2d\u7684\u51cf\u6cd5\u8fd0\u7b97\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8eOracle,\u51cf\u6cd5,\u8fd0\u7b97\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u6df1\u5165\u63a2\u8ba8Oracle\u6570\u636e\u5e93\u4e2d\u7684\u51cf...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199785","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199785","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199785"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199785\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}