{"id":192026,"date":"2024-11-12T17:49:20","date_gmt":"2024-11-12T09:49:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/192026\/"},"modified":"2024-11-12T17:49:22","modified_gmt":"2024-11-12T09:49:22","slug":"%e8%a9%b3%e8%81%8a%e9%a9%97%e8%ad%89oracle-sql%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/192026\/","title":{"rendered":"\u8a73\u804a\u9a57\u8b49Oracle SQL\u8a9e\u53e5"},"content":{"rendered":"<h1 id=\"%e8%a9%b3%e8%81%8a%e9%a9%97%e8%ad%89oracle-sql%e8%aa%9e%e5%8f%a5-kZFXeiXXQv\">\u8a73\u804a\u9a57\u8b49Oracle SQL\u8a9e\u53e5<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cSQL\u8a9e\u53e5\u7684\u6b63\u78ba\u6027\u548c\u6709\u6548\u6027\u81f3\u95dc\u91cd\u8981\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u6642\uff0c\u9a57\u8b49SQL\u8a9e\u53e5\u4e0d\u50c5\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\uff0c\u9084\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u9a57\u8b49Oracle SQL\u8a9e\u53e5\uff0c\u5305\u62ec\u5e38\u898b\u7684\u9a57\u8b49\u65b9\u6cd5\u3001\u5de5\u5177\u53ca\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e9%a9%97%e8%ad%89sql%e8%aa%9e%e5%8f%a5-kZFXeiXXQv\">\u70ba\u4ec0\u9ebc\u9700\u8981\u9a57\u8b49SQL\u8a9e\u53e5<\/h2>\n<p>\u9a57\u8b49SQL\u8a9e\u53e5\u7684\u4e3b\u8981\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u78ba\u4fdd\u8a9e\u6cd5\u6b63\u78ba\u6027\uff1a<\/strong>\u932f\u8aa4\u7684SQL\u8a9e\u53e5\u6703\u5c0e\u81f4\u67e5\u8a62\u5931\u6557\uff0c\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u6b63\u5e38\u904b\u884c\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u901a\u904e\u512a\u5316SQL\u8a9e\u53e5\uff0c\u53ef\u4ee5\u6e1b\u5c11\u67e5\u8a62\u6642\u9593\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u589e\u5f37\u5b89\u5168\u6027\uff1a<\/strong>\u9632\u6b62SQL\u6ce8\u5165\u7b49\u5b89\u5168\u6f0f\u6d1e\uff0c\u4fdd\u8b77\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u6a5f\u5bc6\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%a9%97%e8%ad%89sql%e8%aa%9e%e5%8f%a5%e7%9a%84%e6%96%b9%e6%b3%95-kZFXeiXXQv\">\u9a57\u8b49SQL\u8a9e\u53e5\u7684\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8sqlplus%e5%b7%a5%e5%85%b7-kZFXeiXXQv\">1. \u4f7f\u7528SQL*Plus\u5de5\u5177<\/h3>\n<p>SQL*Plus\u662fOracle\u63d0\u4f9b\u7684\u4e00\u500b\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4f86\u57f7\u884c\u548c\u9a57\u8b49SQL\u8a9e\u53e5\u3002\u4f7f\u7528\u8005\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u4e2d\u8f38\u5165SQL\u8a9e\u53e5\uff0c\u4e26\u7acb\u5373\u7372\u5f97\u57f7\u884c\u7d50\u679c\u6216\u932f\u8aa4\u4fe1\u606f\u3002<\/p>\n<pre><code>SQL&gt; SELECT * FROM employees WHERE employee_id = 100;<\/code><\/pre>\n<p>\u5982\u679c\u8a9e\u53e5\u6b63\u78ba\uff0c\u5c07\u8fd4\u56de\u76f8\u61c9\u7684\u6578\u64da\uff1b\u5982\u679c\u6709\u932f\u8aa4\uff0c\u5247\u6703\u986f\u793a\u932f\u8aa4\u4fe1\u606f\uff0c\u5e6b\u52a9\u4f7f\u7528\u8005\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8oracle-sql-developer-kZFXeiXXQv\">2. \u4f7f\u7528Oracle SQL Developer<\/h3>\n<p>Oracle SQL Developer\u662f\u4e00\u500b\u5716\u5f62\u5316\u7684\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\uff0c\u63d0\u4f9b\u4e86\u66f4\u53cb\u597d\u7684\u7528\u6236\u754c\u9762\u4f86\u7de8\u5beb\u548c\u9a57\u8b49SQL\u8a9e\u53e5\u3002\u4f7f\u7528\u8005\u53ef\u4ee5\u5728SQL Worksheet\u4e2d\u7de8\u5bebSQL\u8a9e\u53e5\uff0c\u4e26\u901a\u904e\u9ede\u64ca\u57f7\u884c\u6309\u9215\u4f86\u9a57\u8b49\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8explain-plan-kZFXeiXXQv\">3. \u4f7f\u7528EXPLAIN PLAN<\/h3>\n<p>EXPLAIN PLAN\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f7f\u7528\u8005\u5206\u6790SQL\u8a9e\u53e5\u7684\u57f7\u884c\u8a08\u5283\u3002\u901a\u904e\u67e5\u770b\u57f7\u884c\u8a08\u5283\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u4e86\u89e3\u6578\u64da\u5eab\u5982\u4f55\u57f7\u884c\u67e5\u8a62\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u512a\u5316\u3002<\/p>\n<pre><code>EXPLAIN PLAN FOR SELECT * FROM employees WHERE employee_id = 100;<\/code><\/pre>\n<p>\u57f7\u884c\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\u67e5\u770b\u57f7\u884c\u8a08\u5283\uff1a<\/p>\n<pre><code>SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY);<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-kZFXeiXXQv\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\uff1a<\/strong>\u907f\u514dSQL\u6ce8\u5165\u653b\u64ca\uff0c\u78ba\u4fdd\u67e5\u8a62\u7684\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\u548c\u512a\u5316SQL\u8a9e\u53e5\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5b9a\u671f\u6aa2\u67e5SQL\u8a9e\u53e5\u7684\u6027\u80fd\u662f\u5fc5\u8981\u7684\u3002<\/li>\n<li><strong>\u4fdd\u6301\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\uff1a<\/strong>\u4f7f\u7528\u9069\u7576\u7684\u7e2e\u6392\u548c\u8a3b\u91cb\uff0c\u8b93SQL\u8a9e\u53e5\u66f4\u6613\u65bc\u7406\u89e3\u548c\u7dad\u8b77\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-kZFXeiXXQv\">\u7d50\u8ad6<\/h2>\n<p>\u9a57\u8b49Oracle SQL\u8a9e\u53e5\u662f\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u901a\u904e\u4f7f\u7528\u5408\u9069\u7684\u5de5\u5177\u548c\u65b9\u6cd5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fddSQL\u8a9e\u53e5\u7684\u6b63\u78ba\u6027\u548c\u6548\u7387\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u5c0d\u65bc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u6216\u5176\u4ed6<code>\u4f3a\u670d\u5668<\/code>\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a> \u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u9a57\u8b49Oracle SQL\u8a9e\u53e5\uff0c\u78ba\u4fdd\u67e5\u8a62\u6b63\u78ba\u6027\u8207\u6548\u7387\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u80fd\u529b\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-192026","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192026","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=192026"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192026\/revisions"}],"predecessor-version":[{"id":192027,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/192026\/revisions\/192027"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=192026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=192026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=192026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}