{"id":95980,"date":"2024-10-20T05:36:16","date_gmt":"2024-10-19T21:36:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95980\/"},"modified":"2024-10-20T05:36:17","modified_gmt":"2024-10-19T21:36:17","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%ae%b5%e7%ae%a1%e7%90%86%e7%9a%84%e5%9b%9b%e5%80%8b%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95980\/","title":{"rendered":"Oracle\u6578\u64da\u5eab\u4e2d\u6bb5\u7ba1\u7406\u7684\u56db\u500b\u6280\u5de7"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%ae%b5%e7%ae%a1%e7%90%86%e7%9a%84%e5%9b%9b%e5%80%8b%e6%8a%80%e5%b7%a7-NWGwWGZrdD\">Oracle\u6578\u64da\u5eab\u4e2d\u6bb5\u7ba1\u7406\u7684\u56db\u500b\u6280\u5de7<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cOracle\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u884c\u696d\u3002\u6709\u6548\u7684\u4e2d\u6bb5\u7ba1\u7406\u5c0d\u65bc\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u56db\u500b\u95dc\u9375\u6280\u5de7\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7ba1\u7406Oracle\u6578\u64da\u5eab\u7684\u4e2d\u6bb5\u3002<\/p>\n<h2 id=\"1-%e5%ae%9a%e6%9c%9f%e7%9b%a3%e6%8e%a7%e6%80%a7%e8%83%bd-NWGwWGZrdD\">1. 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id=\"2-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-NWGwWGZrdD\">2. \u512a\u5316\u67e5\u8a62\u6027\u80fd<\/h2>\n<p>\u67e5\u8a62\u6027\u80fd\u7684\u512a\u5316\u5c0d\u65bc\u63d0\u9ad8\u6574\u9ad4\u6578\u64da\u5eab\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u67e5\u8a62\u7684\u6280\u5de7\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u9069\u7576\u7684\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u78ba\u4fdd\u5c0d\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u5efa\u7acb\u7d22\u5f15\u3002<\/li>\n<li><strong>\u907f\u514dSELECT *\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u6307\u5b9a\u6240\u9700\u7684\u5217\uff0c\u800c\u4e0d\u662f\u4f7f\u7528SELECT *\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\u3002<\/li>\n<li><strong>\u5206\u6790\u57f7\u884c\u8a08\u5283\uff1a<\/strong>\u4f7f\u7528EXPLAIN PLAN\u547d\u4ee4\u4f86\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u627e\u51fa\u6f5b\u5728\u7684\u6027\u80fd\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%82%99%e4%bb%bd%e8%88%87%e6%81%a2%e5%be%a9%e7%ad%96%e7%95%a5-NWGwWGZrdD\">3. \u6578\u64da\u5eab\u5099\u4efd\u8207\u6062\u5fa9\u7b56\u7565<\/h2>\n<p>\u6578\u64da\u7684\u5b89\u5168\u6027\u662f\u4e2d\u6bb5\u7ba1\u7406\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u5236\u5b9a\u6709\u6548\u7684\u5099\u4efd\u8207\u6062\u5fa9\u7b56\u7565\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u671f\u5099\u4efd\uff1a<\/strong>\u8a2d\u7f6e\u81ea\u52d5\u5099\u4efd\u8a08\u5283\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5b9a\u671f\u5099\u4efd\uff0c\u4e26\u5c07\u5099\u4efd\u5b58\u5132\u5728\u5b89\u5168\u7684\u4f4d\u7f6e\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u6062\u5fa9\u904e\u7a0b\uff1a<\/strong>\u5b9a\u671f\u6e2c\u8a66\u6578\u64da\u6062\u5fa9\u904e\u7a0b\uff0c\u4ee5\u78ba\u4fdd\u5728\u9700\u8981\u6642\u80fd\u5920\u5feb\u901f\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e5%ae%89%e5%85%a8%e6%80%a7%e7%ae%a1%e7%90%86-NWGwWGZrdD\">4. \u5b89\u5168\u6027\u7ba1\u7406<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\u7ba1\u7406\u662f\u4e2d\u6bb5\u7ba1\u7406\u4e2d\u4e0d\u53ef\u5ffd\u8996\u7684\u4e00\u90e8\u5206\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5b89\u5168\u6027\u7ba1\u7406\u7684\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u7528\u6236\u6b0a\u9650\u7ba1\u7406\uff1a<\/strong>\u6839\u64da\u7528\u6236\u7684\u89d2\u8272\u548c\u9700\u6c42\uff0c\u8a2d\u7f6e\u9069\u7576\u7684\u6b0a\u9650\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8a2a\u554f\u3002<\/li>\n<li><strong>\u52a0\u5bc6\u654f\u611f\u6578\u64da\uff1a<\/strong>\u5c0d\u654f\u611f\u6578\u64da\u9032\u884c\u52a0\u5bc6\uff0c\u4ee5\u9632\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002<\/li>\n<li><strong>\u5b9a\u671f\u5be9\u8a08\uff1a<\/strong>\u9032\u884c\u5b9a\u671f\u7684\u5b89\u5168\u5be9\u8a08\uff0c\u6aa2\u67e5\u7528\u6236\u6d3b\u52d5\u548c\u6578\u64da\u5eab\u914d\u7f6e\uff0c\u53ca\u6642\u767c\u73fe\u6f5b\u5728\u7684\u5b89\u5168\u96b1\u60a3\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NWGwWGZrdD\">\u7e3d\u7d50<\/h2>\n<p>\u6709\u6548\u7684Oracle\u6578\u64da\u5eab\u4e2d\u6bb5\u7ba1\u7406\u9700\u8981\u5b9a\u671f\u76e3\u63a7\u6027\u80fd\u3001\u512a\u5316\u67e5\u8a62\u3001\u5236\u5b9a\u5099\u4efd\u8207\u6062\u5fa9\u7b56\u7565\u4ee5\u53ca\u52a0\u5f37\u5b89\u5168\u6027\u7ba1\u7406\u3002\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u9760\u6027\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1Oracle\u6578\u64da\u5eab\u4e2d\u6bb5\u7ba1\u7406\u7684\u56db\u500b\u6280\u5de7\uff0c\u63d0\u5347\u6027\u80fd\u3001\u512a\u5316\u8cc7\u6e90\u3001\u78ba\u4fdd\u5b89\u5168\uff0c\u52a9\u60a8\u9ad8\u6548\u7ba1\u7406\u6578\u64da\u5eab\u74b0\u5883\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-95980","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95980","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=95980"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95980\/revisions"}],"predecessor-version":[{"id":95981,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95980\/revisions\/95981"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}