{"id":95194,"date":"2024-10-19T23:01:15","date_gmt":"2024-10-19T15:01:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95194\/"},"modified":"2024-10-19T23:01:16","modified_gmt":"2024-10-19T15:01:16","slug":"oracle%e9%9b%86%e5%90%88%e9%a1%9e%e5%9e%8b%e5%a6%82%e4%bd%95%e8%bc%b8%e5%87%ba%e5%8f%83%e6%95%b8pl%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95194\/","title":{"rendered":"Oracle\u96c6\u5408\u985e\u578b\u5982\u4f55\u8f38\u51fa\u53c3\u6578PL\u5b58\u5132\u904e\u7a0b"},"content":{"rendered":"<h1 id=\"oracle%e9%9b%86%e5%90%88%e9%a1%9e%e5%9e%8b%e5%a6%82%e4%bd%95%e8%bc%b8%e5%87%ba%e5%8f%83%e6%95%b8pl%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-NQzELQMJwl\">Oracle\u96c6\u5408\u985e\u578b\u5982\u4f55\u8f38\u51fa\u53c3\u6578PL\u5b58\u5132\u904e\u7a0b<\/h1>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u96c6\u5408\u985e\u578b\u662f\u4e00\u7a2e\u975e\u5e38\u6709\u7528\u7684\u6578\u64da\u7d50\u69cb\uff0c\u5141\u8a31\u7528\u6236\u5728PL\/SQL\u4e2d\u8655\u7406\u591a\u500b\u503c\u3002\u9019\u4e9b\u96c6\u5408\u985e\u578b\u5305\u62ec\u5d4c\u5957\u8868\u548c\u8b8a\u9577\u6578\u7d44\uff08VARRAY\uff09\u3002\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u9700\u8981\u5c07\u9019\u4e9b\u96c6\u5408\u985e\u578b\u4f5c\u70ba\u8f38\u51fa\u53c3\u6578\u50b3\u905e\u7d66\u5b58\u5132\u904e\u7a0b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728PL\/SQL\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u96c6\u5408\u985e\u578b\u4f5c\u70ba\u8f38\u51fa\u53c3\u6578\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e9%9b%86%e5%90%88%e9%a1%9e%e5%9e%8b%e7%9a%84%e5%ae%9a%e7%be%a9-NQzELQMJwl\">\u96c6\u5408\u985e\u578b\u7684\u5b9a\u7fa9<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u96c6\u5408\u985e\u578b\u4e3b\u8981\u6709\u5169\u7a2e\uff1a\u5d4c\u5957\u8868\u548c\u8b8a\u9577\u6578\u7d44\u3002\u9019\u5169\u7a2e\u96c6\u5408\u985e\u578b\u7684\u5b9a\u7fa9\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>-- \u5b9a\u7fa9\u4e00\u500b\u5d4c\u5957\u8868\u985e\u578b\nCREATE TYPE nested_table_type AS TABLE OF VARCHAR2(100);\n\n-- \u5b9a\u7fa9\u4e00\u500b\u8b8a\u9577\u6578\u7d44\u985e\u578b\nCREATE TYPE varray_type AS VARRAY(10) OF VARCHAR2(100);\n<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e9%9b%86%e5%90%88%e9%a1%9e%e5%9e%8b%e4%bd%9c%e7%82%ba%e8%bc%b8%e5%87%ba%e5%8f%83%e6%95%b8%e7%9a%84%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-NQzELQMJwl\">\u4f7f\u7528\u96c6\u5408\u985e\u578b\u4f5c\u70ba\u8f38\u51fa\u53c3\u6578\u7684\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u5c07\u5275\u5efa\u4e00\u500b\u5b58\u5132\u904e\u7a0b\uff0c\u8a72\u904e\u7a0b\u4f7f\u7528\u5d4c\u5957\u8868\u4f5c\u70ba\u8f38\u51fa\u53c3\u6578\u3002\u9019\u500b\u5b58\u5132\u904e\u7a0b\u5c07\u5f9e\u4e00\u500b\u8868\u4e2d\u9078\u64c7\u6578\u64da\u4e26\u5c07\u5176\u8fd4\u56de\u7d66\u8abf\u7528\u8005\u3002<\/p>\n<pre><code>CREATE OR REPLACE PROCEDURE get_employee_names(p_names OUT nested_table_type) AS\nBEGIN\n    -- \u521d\u59cb\u5316\u8f38\u51fa\u53c3\u6578\n    p_names := nested_table_type();\n    \n    -- \u5f9eEMPLOYEES\u8868\u4e2d\u9078\u64c7\u54e1\u5de5\u59d3\u540d\n    SELECT employee_name\n    BULK COLLECT INTO p_names\n    FROM employees;\nEND;\n<\/code><\/pre>\n<h2 id=\"%e8%aa%bf%e7%94%a8%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%b8%a6%e7%8d%b2%e5%8f%96%e7%b5%90%e6%9e%9c-NQzELQMJwl\">\u8abf\u7528\u5b58\u5132\u904e\u7a0b\u4e26\u7372\u53d6\u7d50\u679c<\/h2>\n<p>\u5728PL\/SQL\u4e2d\u8abf\u7528\u4e0a\u8ff0\u5b58\u5132\u904e\u7a0b\u4e26\u7372\u53d6\u7d50\u679c\u7684\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code>DECLARE\n    v_names nested_table_type;\nBEGIN\n    -- \u8abf\u7528\u5b58\u5132\u904e\u7a0b\n    get_employee_names(v_names);\n    \n    -- \u8f38\u51fa\u7d50\u679c\n    FOR i IN 1 .. v_names.COUNT LOOP\n        DBMS_OUTPUT.PUT_LINE(v_names(i));\n    END LOOP;\nEND;\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-NQzELQMJwl\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u4f7f\u7528\u96c6\u5408\u985e\u578b\u4f5c\u70ba\u8f38\u51fa\u53c3\u6578\u6642\uff0c\u5fc5\u9808\u78ba\u4fdd\u5728\u5b58\u5132\u904e\u7a0b\u5167\u90e8\u6b63\u78ba\u521d\u59cb\u5316\u8a72\u53c3\u6578\u3002<\/li>\n<li>\u4f7f\u7528BULK COLLECT\u53ef\u4ee5\u6709\u6548\u5730\u5f9e\u67e5\u8a62\u4e2d\u6536\u96c6\u591a\u884c\u6578\u64da\uff0c\u9019\u5c0d\u65bc\u6027\u80fd\u512a\u5316\u975e\u5e38\u91cd\u8981\u3002<\/li>\n<li>\u5728\u8abf\u7528\u5b58\u5132\u904e\u7a0b\u6642\uff0c\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\u4f86\u63a5\u6536\u8f38\u51fa\u53c3\u6578\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NQzELQMJwl\">\u7e3d\u7d50<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u4f7f\u7528\u96c6\u5408\u985e\u578b\u4f5c\u70baPL\/SQL\u5b58\u5132\u904e\u7a0b\u7684\u8f38\u51fa\u53c3\u6578\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u529f\u80fd\uff0c\u80fd\u5920\u6709\u6548\u5730\u8655\u7406\u591a\u884c\u6578\u64da\u3002\u901a\u904e\u672c\u6587\u7684\u793a\u4f8b\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u7406\u89e3\u5982\u4f55\u5b9a\u7fa9\u96c6\u5408\u985e\u578b\u3001\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u4ee5\u53ca\u5982\u4f55\u8abf\u7528\u9019\u4e9b\u904e\u7a0b\u4f86\u7372\u53d6\u7d50\u679c\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u6280\u8853\u652f\u6301\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728Oracle\u4e2d\u4f7f\u7528\u96c6\u5408\u985e\u578b\u8f38\u51fa\u53c3\u6578\u65bcPL\/SQL\u5b58\u5132\u904e\u7a0b\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u9748\u6d3b\u6027\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-95194","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95194","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=95194"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95194\/revisions"}],"predecessor-version":[{"id":95195,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95194\/revisions\/95195"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}