{"id":95152,"date":"2024-10-19T22:40:18","date_gmt":"2024-10-19T14:40:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95152\/"},"modified":"2024-10-19T22:40:18","modified_gmt":"2024-10-19T14:40:18","slug":"oracle%e7%ae%a1%e9%81%93%e5%87%bd%e6%95%b8%e7%9a%84%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95152\/","title":{"rendered":"Oracle\u7ba1\u9053\u51fd\u6578\u7684\u7528\u6cd5"},"content":{"rendered":"<h1 id=\"oracle%e7%ae%a1%e9%81%93%e5%87%bd%e6%95%b8%e7%9a%84%e7%94%a8%e6%b3%95-LRuLbAxnIE\">Oracle\u7ba1\u9053\u51fd\u6578\u7684\u7528\u6cd5<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u7ba1\u9053\u51fd\u6578\uff08Pipeline Function\uff09\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u51fd\u6578\uff0c\u5141\u8a31\u7528\u6236\u4ee5\u6d41\u7684\u65b9\u5f0f\u8655\u7406\u6578\u64da\u3002\u9019\u7a2e\u51fd\u6578\u7684\u4e3b\u8981\u7279\u9ede\u662f\u80fd\u5920\u5728\u6578\u64da\u751f\u6210\u7684\u540c\u6642\u9032\u884c\u8655\u7406\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u548c\u6548\u7387\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle\u7ba1\u9053\u51fd\u6578\u7684\u7528\u6cd5\u53ca\u5176\u512a\u52e2\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%ae%a1%e9%81%93%e5%87%bd%e6%95%b8%ef%bc%9f-LRuLbAxnIE\">\u4ec0\u9ebc\u662f\u7ba1\u9053\u51fd\u6578\uff1f<\/h2>\n<p>\u7ba1\u9053\u51fd\u6578\u662f\u4e00\u7a2e\u8fd4\u56de\u96c6\u5408\u985e\u578b\u7684\u51fd\u6578\uff0c\u4e26\u4e14\u53ef\u4ee5\u5728SQL\u67e5\u8a62\u4e2d\u76f4\u63a5\u4f7f\u7528\u3002\u8207\u50b3\u7d71\u7684\u51fd\u6578\u4e0d\u540c\uff0c\u7ba1\u9053\u51fd\u6578\u53ef\u4ee5\u9010\u884c\u8fd4\u56de\u7d50\u679c\uff0c\u9019\u610f\u5473\u8457\u6578\u64da\u53ef\u4ee5\u5728\u751f\u6210\u7684\u540c\u6642\u88ab\u6d88\u8cbb\uff0c\u5f9e\u800c\u6e1b\u5c11\u4e86\u5167\u5b58\u7684\u4f7f\u7528\u548c\u7b49\u5f85\u6642\u9593\u3002<\/p>\n<h2 id=\"%e7%ae%a1%e9%81%93%e5%87%bd%e6%95%b8%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%b5%90%e6%a7%8b-LRuLbAxnIE\">\u7ba1\u9053\u51fd\u6578\u7684\u57fa\u672c\u7d50\u69cb<\/h2>\n<p>\u7ba1\u9053\u51fd\u6578\u7684\u57fa\u672c\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE OR REPLACE TYPE type_name AS OBJECT (\n    attribute1 datatype,\n    attribute2 datatype,\n    ...\n);\n\nCREATE OR REPLACE TYPE TABLE OF type_name AS TABLE OF type_name;\n\nCREATE OR REPLACE FUNCTION function_name RETURN TABLE OF type_name PIPELINED IS\nBEGIN\n    -- \u751f\u6210\u6578\u64da\u7684\u908f\u8f2f\n    PIPE ROW(type_name(attribute1_value, attribute2_value, ...));\n    -- \u53ef\u4ee5\u91cd\u8907\u591a\u6b21\u8abf\u7528PIPE ROW\nEND;\n<\/code><\/pre>\n<h2 id=\"%e7%ae%a1%e9%81%93%e5%87%bd%e6%95%b8%e7%9a%84%e4%bd%bf%e7%94%a8%e7%a4%ba%e4%be%8b-LRuLbAxnIE\">\u7ba1\u9053\u51fd\u6578\u7684\u4f7f\u7528\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u548c\u4f7f\u7528\u7ba1\u9053\u51fd\u6578\uff1a<\/p>\n<pre><code>-- \u5275\u5efa\u4e00\u500b\u5c0d\u8c61\u985e\u578b\nCREATE OR REPLACE TYPE employee_type AS OBJECT (\n    id NUMBER,\n    name VARCHAR2(100)\n);\n\n-- \u5275\u5efa\u4e00\u500b\u5c0d\u8c61\u985e\u578b\u7684\u8868\nCREATE OR REPLACE TYPE employee_table AS TABLE OF employee_type;\n\n-- \u5275\u5efa\u7ba1\u9053\u51fd\u6578\nCREATE OR REPLACE FUNCTION get_employees RETURN employee_table PIPELINED IS\nBEGIN\n    FOR i IN 1..10 LOOP\n        PIPE ROW(employee_type(i, 'Employee ' || i));\n    END LOOP;\nEND;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba`get_employees`\u7684\u7ba1\u9053\u51fd\u6578\uff0c\u8a72\u51fd\u6578\u8fd4\u56de10\u500b\u54e1\u5de5\u7684ID\u548c\u59d3\u540d\u3002\u6bcf\u6b21\u8abf\u7528`PIPE ROW`\u6642\uff0c\u6578\u64da\u6703\u7acb\u5373\u8fd4\u56de\uff0c\u9019\u6a23\u7528\u6236\u53ef\u4ee5\u5728\u6578\u64da\u751f\u6210\u7684\u540c\u6642\u9032\u884c\u8655\u7406\u3002<\/p>\n<h2 id=\"%e7%ae%a1%e9%81%93%e5%87%bd%e6%95%b8%e7%9a%84%e5%84%aa%e5%8b%a2-LRuLbAxnIE\">\u7ba1\u9053\u51fd\u6578\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u7531\u65bc\u6578\u64da\u53ef\u4ee5\u9010\u884c\u8fd4\u56de\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/li>\n<li><strong>\u5373\u6642\u8655\u7406\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u5728\u6578\u64da\u751f\u6210\u7684\u540c\u6642\u9032\u884c\u8655\u7406\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6574\u9ad4\u7684\u97ff\u61c9\u901f\u5ea6\u3002<\/li>\n<li><strong>\u7c21\u5316\u4ee3\u78bc\uff1a<\/strong>\u7ba1\u9053\u51fd\u6578\u53ef\u4ee5\u4f7f\u4ee3\u78bc\u66f4\u52a0\u7c21\u6f54\uff0c\u56e0\u70ba\u5b83\u5011\u53ef\u4ee5\u76f4\u63a5\u5728SQL\u67e5\u8a62\u4e2d\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-LRuLbAxnIE\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u7ba1\u9053\u51fd\u6578\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u7ba1\u9053\u51fd\u6578\u5fc5\u9808\u8fd4\u56de\u4e00\u500b\u96c6\u5408\u985e\u578b\u3002<\/li>\n<li>\u5728\u7ba1\u9053\u51fd\u6578\u4e2d\uff0c\u4e0d\u80fd\u4f7f\u7528DML\u8a9e\u53e5\uff08\u5982INSERT\u3001UPDATE\u3001DELETE\uff09\u3002<\/li>\n<li>\u7ba1\u9053\u51fd\u6578\u7684\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u6578\u64da\u751f\u6210\u908f\u8f2f\u7684\u5f71\u97ff\uff0c\u56e0\u6b64\u9700\u8981\u9032\u884c\u9069\u7576\u7684\u512a\u5316\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-LRuLbAxnIE\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u7684\u7ba1\u9053\u51fd\u6578\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u6027\u80fd\u3002\u901a\u904e\u9010\u884c\u8fd4\u56de\u6578\u64da\uff0c\u7ba1\u9053\u51fd\u6578\u4e0d\u50c5\u80fd\u5920\u6e1b\u5c11\u5167\u5b58\u7684\u4f7f\u7528\uff0c\u9084\u80fd\u5920\u5be6\u73fe\u5373\u6642\u8655\u7406\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u61c9\u7528\u5834\u666f\uff0c\u7ba1\u9053\u51fd\u6578\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bcVPS\u3001<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u3001<a href=\"https:\/\/server.hk\">\u670d\u52a1\u5668<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Oracle\u7ba1\u9053\u51fd\u6578\u7684\u7528\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u5be6\u73fe\u5373\u6642\u6578\u64da\u6d41\u548c\u589e\u5f37\u67e5\u8a62\u6027\u80fd\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-95152","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95152","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=95152"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95152\/revisions"}],"predecessor-version":[{"id":95153,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95152\/revisions\/95153"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}