{"id":94698,"date":"2024-10-19T20:25:19","date_gmt":"2024-10-19T12:25:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/94698\/"},"modified":"2024-10-19T20:25:20","modified_gmt":"2024-10-19T12:25:20","slug":"oracle%e7%b6%81%e5%ae%9a%e8%ae%8a%e9%87%8f%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e4%bb%a3%e7%a2%bc%e4%bb%8b%e7%b4%b9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/94698\/","title":{"rendered":"Oracle\u7d81\u5b9a\u8b8a\u91cf\u7684\u5be6\u969b\u61c9\u7528\u4ee3\u78bc\u4ecb\u7d39"},"content":{"rendered":"<h1 id=\"oracle%e7%b6%81%e5%ae%9a%e8%ae%8a%e9%87%8f%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e4%bb%a3%e7%a2%bc%e4%bb%8b%e7%b4%b9-ETGqmzRGNP\">Oracle\u7d81\u5b9a\u8b8a\u91cf\u7684\u5be6\u969b\u61c9\u7528\u4ee3\u78bc\u4ecb\u7d39<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u7d81\u5b9a\u8b8a\u91cf\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u6280\u8853\uff0c\u80fd\u5920\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u4e26\u589e\u5f37\u5b89\u5168\u6027\u3002\u7d81\u5b9a\u8b8a\u91cf\u5141\u8a31\u958b\u767c\u8005\u5728SQL\u8a9e\u53e5\u4e2d\u4f7f\u7528\u4f54\u4f4d\u7b26\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u57f7\u884c\u6642\u5c07\u5177\u9ad4\u7684\u503c\u50b3\u905e\u7d66\u67e5\u8a62\u3002\u9019\u4e0d\u50c5\u80fd\u5920\u6e1b\u5c11SQL\u6ce8\u5165\u7684\u98a8\u96aa\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u7684\u57f7\u884c\u6548\u7387\u3002\u672c\u6587\u5c07\u4ecb\u7d39Oracle\u7d81\u5b9a\u8b8a\u91cf\u7684\u57fa\u672c\u6982\u5ff5\u53ca\u5176\u5be6\u969b\u61c9\u7528\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b6%81%e5%ae%9a%e8%ae%8a%e9%87%8f%ef%bc%9f-ETGqmzRGNP\">\u4ec0\u9ebc\u662f\u7d81\u5b9a\u8b8a\u91cf\uff1f<\/h2>\n<p>\u7d81\u5b9a\u8b8a\u91cf\u662f\u6307\u5728SQL\u8a9e\u53e5\u4e2d\u4f7f\u7528\u4f54\u4f4d\u7b26\uff08\u5982:var_name\uff09\u4f86\u4ee3\u66ff\u5177\u9ad4\u7684\u503c\u3002\u7576\u57f7\u884c\u67e5\u8a62\u6642\uff0c\u9019\u4e9b\u4f54\u4f4d\u7b26\u6703\u88ab\u5177\u9ad4\u7684\u503c\u66ff\u63db\u3002\u9019\u7a2e\u65b9\u5f0f\u7684\u597d\u8655\u5728\u65bc\uff0cOracle\u53ef\u4ee5\u91cd\u8907\u4f7f\u7528\u5df2\u7d93\u7de8\u8b6f\u7684SQL\u8a9e\u53e5\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b6%81%e5%ae%9a%e8%ae%8a%e9%87%8f%e7%9a%84%e5%84%aa%e5%8b%a2-ETGqmzRGNP\">\u7d81\u5b9a\u8b8a\u91cf\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u4f7f\u7528\u7d81\u5b9a\u8b8a\u91cf\u53ef\u4ee5\u6e1b\u5c11SQL\u8a9e\u53e5\u7684\u89e3\u6790\u6642\u9593\uff0c\u56e0\u70baOracle\u53ea\u9700\u89e3\u6790\u4e00\u6b21SQL\u8a9e\u53e5\uff0c\u7136\u5f8c\u91cd\u8907\u4f7f\u7528\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\u589e\u5f37\uff1a<\/strong>\u7d81\u5b9a\u8b8a\u91cf\u53ef\u4ee5\u6709\u6548\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\uff0c\u56e0\u70ba\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u4e0d\u6703\u76f4\u63a5\u62fc\u63a5\u5230SQL\u8a9e\u53e5\u4e2d\u3002<\/li>\n<li><strong>\u4ee3\u78bc\u53ef\u8b80\u6027\uff1a<\/strong>\u4f7f\u7528\u7d81\u5b9a\u8b8a\u91cf\u53ef\u4ee5\u4f7fSQL\u8a9e\u53e5\u66f4\u6e05\u6670\uff0c\u6613\u65bc\u7dad\u8b77\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b6%81%e5%ae%9a%e8%ae%8a%e9%87%8f%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e4%bb%a3%e7%a2%bc-ETGqmzRGNP\">\u7d81\u5b9a\u8b8a\u91cf\u7684\u5be6\u969b\u61c9\u7528\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u7d81\u5b9a\u8b8a\u91cf\u7684\u7c21\u55ae\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728Oracle\u4e2d\u4f7f\u7528PL\/SQL\u9032\u884c\u67e5\u8a62\u3002<\/p>\n<pre><code>\nDECLARE\n    v_employee_name VARCHAR2(100);\n    v_employee_id NUMBER := 101; -- \u5047\u8a2d\u6211\u5011\u8981\u67e5\u8a62ID\u70ba101\u7684\u54e1\u5de5\nBEGIN\n    SELECT name INTO v_employee_name\n    FROM employees\n    WHERE employee_id = :employee_id; -- \u4f7f\u7528\u7d81\u5b9a\u8b8a\u91cf\n\n    DBMS_OUTPUT.PUT_LINE('\u54e1\u5de5\u59d3\u540d: ' || v_employee_name);\nEND;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86\u7d81\u5b9a\u8b8a\u91cf:employee_id\u4f86\u67e5\u8a62\u54e1\u5de5\u7684\u59d3\u540d\u3002\u9019\u6a23\u7684\u5beb\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u67e5\u8a62\u7684\u6027\u80fd\uff0c\u9084\u589e\u5f37\u4e86\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%b6%81%e5%ae%9a%e8%ae%8a%e9%87%8f%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-ETGqmzRGNP\">\u4f7f\u7528\u7d81\u5b9a\u8b8a\u91cf\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u78ba\u4fdd\u7d81\u5b9a\u8b8a\u91cf\u7684\u6578\u64da\u985e\u578b\u8207\u6578\u64da\u5eab\u4e2d\u7684\u5b57\u6bb5\u985e\u578b\u76f8\u5339\u914d\uff0c\u4ee5\u907f\u514d\u985e\u578b\u4e0d\u5339\u914d\u7684\u932f\u8aa4\u3002<\/li>\n<li>\u5728\u4f7f\u7528\u7d81\u5b9a\u8b8a\u91cf\u6642\uff0c\u61c9\u8a72\u6ce8\u610fSQL\u8a9e\u53e5\u7684\u7d50\u69cb\uff0c\u78ba\u4fdd\u4f54\u4f4d\u7b26\u7684\u4f4d\u7f6e\u6b63\u78ba\u3002<\/li>\n<li>\u5728\u8abf\u8a66\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528DBMS_OUTPUT\u4f86\u8f38\u51fa\u7d81\u5b9a\u8b8a\u91cf\u7684\u503c\uff0c\u4ee5\u4fbf\u6aa2\u67e5\u5176\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-ETGqmzRGNP\">\u7d50\u8ad6<\/h2>\n<p>\u7d81\u5b9a\u8b8a\u91cf\u5728Oracle\u6578\u64da\u5eab\u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u4e26\u589e\u5f37\u5b89\u5168\u6027\u3002\u901a\u904e\u4f7f\u7528\u7d81\u5b9a\u8b8a\u91cf\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u7de8\u5beb\u66f4\u9ad8\u6548\u548c\u5b89\u5168\u7684SQL\u8a9e\u53e5\u3002\u7121\u8ad6\u662f\u5728\u65e5\u5e38\u958b\u767c\u9084\u662f\u5927\u578b\u7cfb\u7d71\u4e2d\uff0c\u638c\u63e1\u7d81\u5b9a\u8b8a\u91cf\u7684\u4f7f\u7528\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bcVPS\u6216\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002\u60a8\u53ef\u4ee5\u67e5\u770b\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u7372\u53d6\u66f4\u591a\u6280\u8853\u652f\u6301\u548c\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u7d81\u5b9a\u8b8a\u91cf\u7684\u5be6\u969b\u61c9\u7528\u4ee3\u78bc\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\u8207\u5b89\u5168\u6027\uff0c\u8b93\u6578\u64da\u64cd\u4f5c\u66f4\u7c21\u4fbf\u9ad8\u6548\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-94698","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94698","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=94698"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94698\/revisions"}],"predecessor-version":[{"id":94699,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94698\/revisions\/94699"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=94698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=94698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=94698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}