{"id":4981,"date":"2024-11-14T08:19:11","date_gmt":"2024-11-14T00:19:11","guid":{"rendered":"https:\/\/fwq.ai\/blog\/4981\/"},"modified":"2024-11-14T08:19:11","modified_gmt":"2024-11-14T00:19:11","slug":"oracle%e5%87%bd%e6%95%b0%e6%80%8e%e4%b9%88%e8%b0%83%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/4981\/","title":{"rendered":"oracle\u51fd\u6570\u600e\u4e48\u8c03\u7528"},"content":{"rendered":"<blockquote><p>\n  \u5728 oracle \u4e2d\u8c03\u7528\u51fd\u6570\u9700\u8981\u4f7f\u7528 select function_name(argument1, argument2, &#8230;) from table_name \u8bed\u6cd5\u3002\u82e5\u8981\u4f20\u9012\u591a\u4e2a\u53c2\u6570\uff0c\u4ee5\u9017\u53f7\u5206\u9694\u5373\u53ef\u3002\u4f7f\u7528\u522b\u540d\u53ef\u6307\u5b9a\u51fd\u6570\u8fd4\u56de\u5217\u7684\u540d\u79f0\uff0c\u4f8b\u5982\uff1aselect get_customer_name(customer_id) as customer_name from customers\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/21\/2024052108031553873.jpg\" class=\"aligncenter\" title=\"oracle\u51fd\u6570\u600e\u4e48\u8c03\u7528\u63d2\u56fe\" alt=\"oracle\u51fd\u6570\u600e\u4e48\u8c03\u7528\u63d2\u56fe\" \/><\/p>\n<p><strong>Oracle \u51fd\u6570\u8c03\u7528<\/strong><\/p>\n<p>\u5728 Oracle \u4e2d\u8c03\u7528\u51fd\u6570\u65f6\uff0c\u9700\u8981\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>SELECT function_name(argument1, argument2, ...) FROM table_name;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>function_name \u662f\u8981\u8c03\u7528\u7684\u51fd\u6570\u540d\u79f0<\/li>\n<li>argument1, argument2, &#8230; \u662f\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570<\/li>\n<li>table_name \u662f\u8981\u4ece\u5176\u4e2d\u83b7\u53d6\u6570\u636e\u7684\u8868\u540d\uff08\u53ef\u9009\u9879\uff09<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u8c03\u7528\u540d\u4e3a get_customer_name \u7684\u51fd\u6570\u5e76\u83b7\u5f97\u7279\u5b9a\u5ba2\u6237\u7684\u540d\u79f0\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n<pre>SELECT get_customer_name(customer_id) FROM customers;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f20\u9012\u591a\u4e2a\u53c2\u6570<\/strong><\/p>\n<p>\u8981\u4f20\u9012\u591a\u4e2a\u53c2\u6570\uff0c\u53ea\u9700\u5728\u5706\u62ec\u53f7\u5185\u7528\u9017\u53f7\u5206\u9694\u53c2\u6570\u5373\u53ef\u3002\u4f8b\u5982\uff0c\u8981\u8c03\u7528 calculate_discount \u51fd\u6570\u5e76\u8ba1\u7b97\u7279\u5b9a\u5ba2\u6237\u7684\u6298\u6263\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n<pre>SELECT calculate_discount(customer_id, order_amount) FROM orders;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u522b\u540d<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u522b\u540d\u6765\u6307\u5b9a\u51fd\u6570\u8fd4\u56de\u7684\u5217\u7684\u540d\u79f0\u3002\u4f8b\u5982\uff0c\u8981\u5c06 get_customer_name \u51fd\u6570\u8fd4\u56de\u7684\u5217\u522b\u540d\u4e3a customer_name\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n<pre>SELECT get_customer_name(customer_id) AS customer_name FROM customers;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u51fd\u6570\u600e\u4e48\u8c03\u7528\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 oracle \u4e2d\u8c03\u7528\u51fd\u6570\u9700\u8981\u4f7f\u7528 select function_name(argument1, argument2, &#8230;) from table_name \u8bed\u6cd5\u3002\u82e5\u8981\u4f20\u9012\u591a\u4e2a\u53c2\u6570\uff0c\u4ee5\u9017\u53f7\u5206\u9694\u5373\u53ef\u3002\u4f7f\u7528\u522b\u540d\u53ef\u6307\u5b9a\u51fd\u6570\u8fd4\u56de\u5217\u7684\u540d\u79f0\uff0c\u4f8b\u5982\uff1aselect get_customer_name(customer_id) as customer_name from customers\u3002 Oracle \u51fd\u6570\u8c03\u7528 \u5728 Oracle \u4e2d\u8c03\u7528\u51fd\u6570\u65f6\uff0c\u9700\u8981\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a SELECT function_name(argument1, argument2, &#8230;) FROM table_name; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a function_name \u662f\u8981\u8c03\u7528\u7684\u51fd\u6570\u540d\u79f0 argument1, argument2, &#8230; \u662f\u4f20\u9012\u7ed9\u51fd\u6570\u7684\u53c2\u6570 table_name \u662f\u8981\u4ece\u5176\u4e2d\u83b7\u53d6\u6570\u636e\u7684\u8868\u540d\uff08\u53ef\u9009\u9879\uff09 \u793a\u4f8b \u4f8b\u5982\uff0c\u8981\u8c03\u7528\u540d\u4e3a get_customer_name \u7684\u51fd\u6570\u5e76\u83b7\u5f97\u7279\u5b9a\u5ba2\u6237\u7684\u540d\u79f0\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a SELECT get_customer_name(customer_id) FROM customers; \u767b\u5f55\u540e\u590d\u5236 \u4f20\u9012\u591a\u4e2a\u53c2\u6570 \u8981\u4f20\u9012\u591a\u4e2a\u53c2\u6570\uff0c\u53ea\u9700\u5728\u5706\u62ec\u53f7\u5185\u7528\u9017\u53f7\u5206\u9694\u53c2\u6570\u5373\u53ef\u3002\u4f8b\u5982\uff0c\u8981\u8c03\u7528 calculate_discount \u51fd\u6570\u5e76\u8ba1\u7b97\u7279\u5b9a\u5ba2\u6237\u7684\u6298\u6263\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a SELECT calculate_discount(customer_id, order_amount) FROM orders; \u767b\u5f55\u540e\u590d\u5236 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-4981","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/4981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=4981"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/4981\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=4981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=4981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=4981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}