{"id":94732,"date":"2024-10-19T20:42:20","date_gmt":"2024-10-19T12:42:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/94732\/"},"modified":"2024-10-19T20:42:20","modified_gmt":"2024-10-19T12:42:20","slug":"oracle%e6%93%8d%e4%bd%9c%e5%b8%b8%e8%a6%8b%e7%9a%84%e4%bb%a3%e7%a2%bc%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/94732\/","title":{"rendered":"Oracle\u64cd\u4f5c\u5e38\u898b\u7684\u4ee3\u78bc\u5206\u6790"},"content":{"rendered":"<h1 id=\"oracle%e6%93%8d%e4%bd%9c%e5%b8%b8%e8%a6%8b%e7%9a%84%e4%bb%a3%e7%a2%bc%e5%88%86%e6%9e%90-EBLbCyjYjl\">Oracle\u64cd\u4f5c\u5e38\u898b\u7684\u4ee3\u78bc\u5206\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cOracle\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u4f01\u696d\u74b0\u5883\u4e2d\u3002\u5c0d\u65bc\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u4f86\u8aaa\uff0c\u7406\u89e3Oracle\u7684\u64cd\u4f5c\u4ee3\u78bc\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u5e38\u898b\u7684Oracle\u64cd\u4f5c\u4ee3\u78bc\uff0c\u4e26\u9032\u884c\u6df1\u5165\u5206\u6790\u3002<\/p>\n<h2 id=\"1-%e5%9f%ba%e6%9c%ac%e7%9a%84sql%e6%9f%a5%e8%a9%a2-EBLbCyjYjl\">1. \u57fa\u672c\u7684SQL\u67e5\u8a62<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u6700\u57fa\u672c\u7684\u64cd\u4f5c\u662f\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM employees WHERE department_id = 10;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5f9e\u201cemployees\u201d\u8868\u4e2d\u9078\u64c7\u6240\u6709\u90e8\u9580ID\u70ba10\u7684\u54e1\u5de5\u3002\u9019\u88e1\u7684\u201c*\u201d\u8868\u793a\u9078\u64c7\u6240\u6709\u5217\u3002\u4f7f\u7528WHERE\u5b50\u53e5\u53ef\u4ee5\u904e\u6ffe\u7d50\u679c\uff0c\u9019\u5728\u6578\u64da\u5206\u6790\u4e2d\u975e\u5e38\u5e38\u898b\u3002<\/p>\n<h2 id=\"2-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-EBLbCyjYjl\">2. \u63d2\u5165\u6578\u64da<\/h2>\n<p>\u63d2\u5165\u6578\u64da\u662f\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u7684\u53e6\u4e00\u500b\u57fa\u672c\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>INSERT INTO employees (first_name, last_name, department_id) VALUES ('John', 'Doe', 10);<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u4e00\u540d\u540d\u70baJohn Doe\u7684\u54e1\u5de5\u63d2\u5165\u5230\u201cemployees\u201d\u8868\u4e2d\uff0c\u4e26\u6307\u5b9a\u5176\u90e8\u9580ID\u70ba10\u3002<\/p>\n<h2 id=\"3-%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-EBLbCyjYjl\">3. \u66f4\u65b0\u6578\u64da<\/h2>\n<p>\u66f4\u65b0\u6578\u64da\u7684\u64cd\u4f5c\u540c\u6a23\u91cd\u8981\uff0c\u4ee5\u4e0b\u662f\u66f4\u65b0\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>UPDATE employees SET department_id = 20 WHERE employee_id = 1;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u54e1\u5de5ID\u70ba1\u7684\u54e1\u5de5\u7684\u90e8\u9580ID\u66f4\u65b0\u70ba20\u3002\u4f7f\u7528UPDATE\u8a9e\u53e5\u6642\uff0c\u5fc5\u9808\u5c0f\u5fc3\u4f7f\u7528WHERE\u5b50\u53e5\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u66f4\u6539\u3002<\/p>\n<h2 id=\"4-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-EBLbCyjYjl\">4. \u522a\u9664\u6578\u64da<\/h2>\n<p>\u522a\u9664\u6578\u64da\u7684\u64cd\u4f5c\u53ef\u4ee5\u4f7f\u7528DELETE\u8a9e\u53e5\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>DELETE FROM employees WHERE employee_id = 1;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u522a\u9664\u54e1\u5de5ID\u70ba1\u7684\u8a18\u9304\u3002\u8207UPDATE\u985e\u4f3c\uff0c\u4f7f\u7528DELETE\u6642\u4e5f\u9700\u8981\u8b39\u614e\uff0c\u4ee5\u514d\u522a\u9664\u932f\u8aa4\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"5-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%ba%8b%e5%8b%99-EBLbCyjYjl\">5. \u6578\u64da\u5eab\u4e8b\u52d9<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u4e8b\u52d9\u7ba1\u7406\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u7684\u91cd\u8981\u90e8\u5206\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u4e8b\u52d9\u7684\u57fa\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>BEGIN\n    INSERT INTO employees (first_name, last_name, department_id) VALUES ('Jane', 'Smith', 10);\n    UPDATE employees SET department_id = 30 WHERE employee_id = 2;\n    COMMIT;\nEND;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5728\u4e00\u500b\u4e8b\u52d9\u4e2d\u57f7\u884c\u63d2\u5165\u548c\u66f4\u65b0\u64cd\u4f5c\uff0c\u4e26\u5728\u6700\u5f8c\u63d0\u4ea4\u4e8b\u52d9\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6240\u6709\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u6210\u529f\uff0c\u8981\u9ebc\u5168\u90e8\u5931\u6557\uff0c\u5f9e\u800c\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"6-%e4%bd%bf%e7%94%a8pl-sql%e9%80%b2%e8%a1%8c%e8%a4%87%e9%9b%9c%e6%93%8d%e4%bd%9c-EBLbCyjYjl\">6. \u4f7f\u7528PL\/SQL\u9032\u884c\u8907\u96dc\u64cd\u4f5c<\/h2>\n<p>PL\/SQL\u662fOracle\u7684\u904e\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u5141\u8a31\u958b\u767c\u8005\u7de8\u5beb\u66f4\u8907\u96dc\u7684\u908f\u8f2f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684PL\/SQL\u793a\u4f8b\uff1a<\/p>\n<pre><code>DECLARE\n    v_employee_id employees.employee_id%TYPE;\nBEGIN\n    SELECT employee_id INTO v_employee_id FROM employees WHERE first_name = 'John';\n    DBMS_OUTPUT.PUT_LINE('Employee ID: ' || v_employee_id);\nEND;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u8072\u660e\u4e86\u4e00\u500b\u8b8a\u91cf\uff0c\u7136\u5f8c\u5f9e\u201cemployees\u201d\u8868\u4e2d\u9078\u64c7John\u7684\u54e1\u5de5ID\uff0c\u4e26\u5c07\u5176\u8f38\u51fa\u3002PL\/SQL\u7684\u4f7f\u7528\u4f7f\u5f97\u6578\u64da\u5eab\u64cd\u4f5c\u66f4\u52a0\u9748\u6d3b\u548c\u5f37\u5927\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-EBLbCyjYjl\">\u7e3d\u7d50<\/h2>\n<p>\u4e86\u89e3Oracle\u7684\u57fa\u672c\u64cd\u4f5c\u4ee3\u78bc\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u958b\u767c\u81f3\u95dc\u91cd\u8981\u3002\u5f9e\u57fa\u672c\u7684SQL\u67e5\u8a62\u5230\u8907\u96dc\u7684PL\/SQL\u7a0b\u5e8f\uff0c\u9019\u4e9b\u64cd\u4f5c\u90fd\u662f\u65e5\u5e38\u5de5\u4f5c\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u64cd\u4f5c\u4e2d\u7684\u5e38\u898b\u4ee3\u78bc\u5206\u6790\u6280\u5de7\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u89e3\u6c7a\u5e38\u898b\u554f\u984c\uff0c\u512a\u5316\u6578\u64da\u5eab\u7ba1\u7406\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-94732","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94732","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=94732"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94732\/revisions"}],"predecessor-version":[{"id":94733,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94732\/revisions\/94733"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=94732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=94732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=94732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}