{"id":92006,"date":"2024-10-19T02:00:20","date_gmt":"2024-10-18T18:00:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/92006\/"},"modified":"2024-10-19T02:00:21","modified_gmt":"2024-10-18T18:00:21","slug":"ora-38434-%e7%84%a1%e6%b3%95%e8%a9%95%e4%bc%b0%e8%a1%a8%e9%81%94%e5%bc%8f-string-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/92006\/","title":{"rendered":"ORA-38434: \u7121\u6cd5\u8a55\u4f30\u8868\u9054\u5f0f \u201cstring\u201d ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-38434-%e7%84%a1%e6%b3%95%e8%a9%95%e4%bc%b0%e8%a1%a8%e9%81%94%e5%bc%8f-string-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-PccqjXwolV\">ORA-38434: \u7121\u6cd5\u8a55\u4f30\u8868\u9054\u5f0f \u201cstring\u201d ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u7684\u904e\u7a0b\u4e2d\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662fORA-38434\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u5728\u8a55\u4f30\u67d0\u500b\u8868\u9054\u5f0f\u6642\u51fa\u73fe\u4e86\u554f\u984c\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528\u865b\u64ec\u5217\u6216\u89f8\u767c\u5668\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eORA-38434\u7684\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u9060\u7a0b\u8655\u7406\u3002<\/p>\n<h2 id=\"ora-38434%e7%9a%84%e5%8e%9f%e5%9b%a0-PccqjXwolV\">ORA-38434\u7684\u539f\u56e0<\/h2>\n<p>ORA-38434\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u865b\u64ec\u5217\u7684\u5b9a\u7fa9\u932f\u8aa4\uff1a<\/strong>\u7576\u865b\u64ec\u5217\u7684\u8868\u9054\u5f0f\u4e0d\u6b63\u78ba\u6216\u7121\u6cd5\u88ab\u8a55\u4f30\u6642\uff0c\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4e86\u4e0d\u5b58\u5728\u7684\u5217\u540d\u6216\u4e0d\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\u3002<\/li>\n<li><strong>\u89f8\u767c\u5668\u4e2d\u7684\u908f\u8f2f\u932f\u8aa4\uff1a<\/strong>\u5982\u679c\u5728\u89f8\u767c\u5668\u4e2d\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u908f\u8f2f\u6216\u8868\u9054\u5f0f\uff0c\u5247\u53ef\u80fd\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u64cd\u4f5c\u6642\uff0c\u5982\u679c\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff0c\u4e5f\u6703\u5c0e\u81f4\u8a55\u4f30\u5931\u6557\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9ora-38434%e9%8c%af%e8%aa%a4-PccqjXwolV\">\u5982\u4f55\u4fee\u5fa9ORA-38434\u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9ORA-38434\u932f\u8aa4\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e8%99%9b%e6%93%ac%e5%88%97%e7%9a%84%e5%ae%9a%e7%be%a9-PccqjXwolV\">1. \u6aa2\u67e5\u865b\u64ec\u5217\u7684\u5b9a\u7fa9<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u51fa\u73fe\u932f\u8aa4\u7684\u865b\u64ec\u5217\u5b9a\u7fa9\u3002\u78ba\u4fdd\u6240\u6709\u4f7f\u7528\u7684\u5217\u540d\u90fd\u662f\u6b63\u78ba\u7684\uff0c\u4e26\u4e14\u6578\u64da\u985e\u578b\u76f8\u7b26\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u865b\u64ec\u5217\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE employees (\n    id NUMBER,\n    name VARCHAR2(100),\n    salary NUMBER,\n    bonus AS (salary * 0.1) -- \u865b\u64ec\u5217\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u78ba\u4fdd\u201csalary\u201d\u5217\u5b58\u5728\u4e14\u70ba\u6578\u5b57\u985e\u578b\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e8%a7%b8%e7%99%bc%e5%99%a8%e9%82%8f%e8%bc%af-PccqjXwolV\">2. \u6aa2\u67e5\u89f8\u767c\u5668\u908f\u8f2f<\/h3>\n<p>\u5982\u679c\u932f\u8aa4\u767c\u751f\u5728\u89f8\u767c\u5668\u4e2d\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u89f8\u767c\u5668\u7684\u908f\u8f2f\u3002\u78ba\u4fdd\u6240\u6709\u5f15\u7528\u7684\u5217\u548c\u8868\u90fd\u662f\u6b63\u78ba\u7684\uff0c\u4e26\u4e14\u908f\u8f2f\u904b\u7b97\u7b26\u7684\u4f7f\u7528\u662f\u5408\u9069\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u89f8\u767c\u5668\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>CREATE OR REPLACE TRIGGER trg_employee_salary\nBEFORE INSERT ON employees\nFOR EACH ROW\nBEGIN\n    IF :NEW.salary &lt; 0 THEN\n        RAISE_APPLICATION_ERROR(-20001, &#039;\u85aa\u6c34\u4e0d\u80fd\u70ba\u8ca0\u6578&#039;);\n    END IF;\nEND;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6aa2\u67e5\u201csalary\u201d\u662f\u5426\u6b63\u78ba\u5f15\u7528\u3002<\/p>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-PccqjXwolV\">3. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u9032\u884c\u4e86\u4e0a\u8ff0\u4fee\u6539\u5f8c\uff0c\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u554f\u984c\u5df2\u7d93\u89e3\u6c7a\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u6e2c\u8a66\u865b\u64ec\u5217\u6216\u89f8\u767c\u5668\uff1a<\/p>\n<pre><code>INSERT INTO employees (id, name, salary) VALUES (1, 'John Doe', 5000);<\/code><\/pre>\n<p>\u5982\u679c\u63d2\u5165\u6210\u529f\u4e14\u6c92\u6709\u5831\u932f\uff0c\u5247\u8868\u793a\u554f\u984c\u5df2\u7d93\u89e3\u6c7a\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86ora-38434%e9%8c%af%e8%aa%a4-PccqjXwolV\">\u9060\u7a0b\u8655\u7406ORA-38434\u932f\u8aa4<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u9032\u884c\u9060\u7a0b\u8655\u7406\u4f86\u89e3\u6c7aORA-38434\u932f\u8aa4\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u9060\u7a0b\u9023\u63a5\u6578\u64da\u5eab\uff1a<\/strong>\u4f7f\u7528SQL Developer\u6216\u5176\u4ed6\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\uff0c\u901a\u904eSSH\u6216VPN\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u57f7\u884c\u8a3a\u65b7\u67e5\u8a62\uff1a<\/strong>\u57f7\u884c\u67e5\u8a62\u4ee5\u6aa2\u67e5\u865b\u64ec\u5217\u548c\u89f8\u767c\u5668\u7684\u5b9a\u7fa9\uff0c\u78ba\u4fdd\u5b83\u5011\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<li><strong>\u4fee\u6539\u548c\u6e2c\u8a66\uff1a<\/strong>\u6839\u64da\u9700\u8981\u9032\u884c\u4fee\u6539\uff0c\u7136\u5f8c\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u554f\u984c\u5df2\u89e3\u6c7a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PccqjXwolV\">\u7e3d\u7d50<\/h2>\n<p>ORA-38434\u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u865b\u64ec\u5217\u6216\u89f8\u767c\u5668\u4e2d\u7684\u8868\u9054\u5f0f\u7121\u6cd5\u8a55\u4f30\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u865b\u64ec\u5217\u7684\u5b9a\u7fa9\u3001\u89f8\u767c\u5668\u7684\u908f\u8f2f\u4ee5\u53ca\u6578\u64da\u985e\u578b\u7684\u5339\u914d\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u9060\u7a0b\u8655\u7406\u53ef\u80fd\u662f\u5fc5\u8981\u7684\uff0c\u9019\u9700\u8981\u4f7f\u7528\u9069\u7576\u7684\u5de5\u5177\u548c\u6280\u8853\u4f86\u9023\u63a5\u548c\u8a3a\u65b7\u6578\u64da\u5eab\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc<em><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/em>\u548c<em><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/em>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-38434 \u932f\u8aa4\uff0c\u7121\u6cd5\u8a55\u4f30\u8868\u9054\u5f0f &#8220;string&#8221; \u7684\u554f\u984c\uff0c\u63d0\u4f9b\u6545\u969c\u4fee\u5fa9\u548c\u9060\u7a0b\u8655\u7406\u6307\u5357\uff0c\u52a9\u60a8\u5feb\u901f\u6062\u5fa9\u7cfb\u7d71\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-92006","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92006","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=92006"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92006\/revisions"}],"predecessor-version":[{"id":92007,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92006\/revisions\/92007"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=92006"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=92006"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=92006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}