{"id":95170,"date":"2024-10-19T22:49:18","date_gmt":"2024-10-19T14:49:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95170\/"},"modified":"2024-10-19T22:49:18","modified_gmt":"2024-10-19T14:49:18","slug":"oracle%e5%87%bd%e6%95%b8%e8%bf%94%e5%9b%9e%e8%a1%a8%e7%9a%84%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95170\/","title":{"rendered":"Oracle\u51fd\u6578\u8fd4\u56de\u8868\u7684\u5be6\u73fe"},"content":{"rendered":"<h1 id=\"oracle%e5%87%bd%e6%95%b8%e8%bf%94%e5%9b%9e%e8%a1%a8%e7%9a%84%e5%af%a6%e7%8f%be-XWWJOkZEXh\">Oracle\u51fd\u6578\u8fd4\u56de\u8868\u7684\u5be6\u73fe<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u51fd\u6578\u662f\u4e00\u7a2e\u975e\u5e38\u91cd\u8981\u7684\u7de8\u7a0b\u7d50\u69cb\uff0c\u80fd\u5920\u57f7\u884c\u7279\u5b9a\u7684\u8a08\u7b97\u6216\u64cd\u4f5c\u4e26\u8fd4\u56de\u7d50\u679c\u3002\u7576\u9700\u8981\u8fd4\u56de\u4e00\u500b\u8868\u683c\u6578\u64da\u6642\uff0cOracle\u63d0\u4f9b\u4e86\u8fd4\u56de\u8868\u7684\u51fd\u6578\uff0c\u9019\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u66f4\u9748\u6d3b\u5730\u8655\u7406\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Oracle\u4e2d\u5be6\u73fe\u8fd4\u56de\u8868\u7684\u51fd\u6578\uff0c\u5305\u62ec\u5176\u57fa\u672c\u6982\u5ff5\u3001\u5be6\u73fe\u6b65\u9a5f\u53ca\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-XWWJOkZEXh\">\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u8fd4\u56de\u8868\u7684\u51fd\u6578\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u51fd\u6578\uff0c\u80fd\u5920\u8fd4\u56de\u4e00\u500b\u8868\u683c\u985e\u578b\u7684\u6578\u64da\u3002\u9019\u7a2e\u51fd\u6578\u901a\u5e38\u7528\u65bc\u9700\u8981\u8fd4\u56de\u591a\u884c\u6578\u64da\u7684\u60c5\u6cc1\uff0c\u4e26\u4e14\u53ef\u4ee5\u8207SQL\u67e5\u8a62\u7d50\u5408\u4f7f\u7528\u3002\u8fd4\u56de\u8868\u7684\u51fd\u6578\u901a\u5e38\u6703\u4f7f\u7528PL\/SQL\u8a9e\u8a00\u4f86\u7de8\u5beb\uff0c\u4e26\u4e14\u9700\u8981\u5b9a\u7fa9\u4e00\u500b\u8868\u985e\u578b\u4f86\u5b58\u5132\u8fd4\u56de\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%af%a6%e7%8f%be%e6%ad%a5%e9%a9%9f-XWWJOkZEXh\">\u5be6\u73fe\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e5%ae%9a%e7%be%a9%e8%a1%a8%e9%a1%9e%e5%9e%8b-XWWJOkZEXh\">1. \u5b9a\u7fa9\u8868\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5b9a\u7fa9\u4e00\u500b\u8868\u985e\u578b\uff0c\u9019\u500b\u985e\u578b\u5c07\u7528\u65bc\u5b58\u5132\u51fd\u6578\u8fd4\u56de\u7684\u6578\u64da\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u5275\u5efa\u4e00\u500b\u8868\u985e\u578b\uff1a<\/p>\n<pre><code>CREATE OR REPLACE TYPE employee_record AS OBJECT (\n    id NUMBER,\n    name VARCHAR2(100),\n    department VARCHAR2(100)\n);\n\nCREATE OR REPLACE TYPE employee_table AS TABLE OF employee_record;<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e8%bf%94%e5%9b%9e%e8%a1%a8%e7%9a%84%e5%87%bd%e6%95%b8-XWWJOkZEXh\">2. \u5275\u5efa\u8fd4\u56de\u8868\u7684\u51fd\u6578<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u51fd\u6578\uff0c\u8a72\u51fd\u6578\u5c07\u8fd4\u56de\u6211\u5011\u525b\u525b\u5b9a\u7fa9\u7684\u8868\u985e\u578b\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u51fd\u6578\uff0c\u8a72\u51fd\u6578\u5f9e\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\u4e2d\u9078\u64c7\u6578\u64da\u4e26\u8fd4\u56de\uff1a<\/p>\n<pre><code>CREATE OR REPLACE FUNCTION get_employees RETURN employee_table IS\n    emp_table employee_table := employee_table();\nBEGIN\n    FOR rec IN (SELECT id, name, department FROM employees) LOOP\n        emp_table.EXTEND;\n        emp_table(emp_table.COUNT) := employee_record(rec.id, rec.name, rec.department);\n    END LOOP;\n    RETURN emp_table;\nEND;<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e5%87%bd%e6%95%b8-XWWJOkZEXh\">3. \u4f7f\u7528\u51fd\u6578<\/h3>\n<p>\u51fd\u6578\u5275\u5efa\u5b8c\u6210\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u5728SQL\u67e5\u8a62\u4e2d\u4f7f\u7528\u5b83\u4f86\u7372\u53d6\u8fd4\u56de\u7684\u8868\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u67e5\u8a62\uff0c\u5c55\u793a\u5982\u4f55\u8abf\u7528\u8a72\u51fd\u6578\uff1a<\/p>\n<pre><code>SELECT * FROM TABLE(get_employees());<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u201cemployees\u201d\u8868\u4e2d\u7684\u6240\u6709\u54e1\u5de5\u8a18\u9304\uff0c\u4e26\u4ee5\u8868\u683c\u7684\u5f62\u5f0f\u986f\u793a\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-XWWJOkZEXh\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u8fd4\u56de\u8868\u7684\u51fd\u6578\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u5b9a\u7fa9\u7684\u8868\u985e\u578b\u8207\u51fd\u6578\u8fd4\u56de\u7684\u6578\u64da\u7d50\u69cb\u76f8\u5339\u914d\u3002<\/li>\n<li>\u5728PL\/SQL\u4e2d\u4f7f\u7528FOR LOOP\u6642\uff0c\u6ce8\u610f\u6027\u80fd\u554f\u984c\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/li>\n<li>\u8fd4\u56de\u7684\u8868\u6578\u64da\u53ef\u4ee5\u76f4\u63a5\u5728SQL\u67e5\u8a62\u4e2d\u4f7f\u7528\uff0c\u9019\u4f7f\u5f97\u6578\u64da\u8655\u7406\u66f4\u52a0\u9748\u6d3b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-XWWJOkZEXh\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u51fd\u6578\u8fd4\u56de\u8868\u7684\u5be6\u73fe\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u548c\u8fd4\u56de\u591a\u884c\u6578\u64da\u3002\u901a\u904e\u5b9a\u7fa9\u8868\u985e\u578b\u548c\u5275\u5efa\u76f8\u61c9\u7684\u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u9084\u4f7f\u5f97\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u5f97\u5230\u4e86\u63d0\u5347\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728Oracle\u4e2d\u5be6\u73fe\u66f4\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u6709\u8208\u8da3\uff0c\u6216\u8005\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u51fd\u6578\u5982\u4f55\u8fd4\u56de\u8868\u7684\u5be6\u73fe\uff0c\u4e86\u89e3\u5176\u8a9e\u6cd5\u3001\u7528\u6cd5\u53ca\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\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-95170","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95170","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=95170"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95170\/revisions"}],"predecessor-version":[{"id":95171,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95170\/revisions\/95171"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}