{"id":87866,"date":"2024-10-18T04:38:16","date_gmt":"2024-10-17T20:38:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/87866\/"},"modified":"2024-10-18T04:38:16","modified_gmt":"2024-10-17T20:38:16","slug":"ora-22315-%e9%a1%9e%e5%9e%8b-string-%e4%b8%8d%e5%8c%85%e5%90%ab%e6%98%a0%e5%b0%84%e6%88%96%e6%8e%92%e5%ba%8f%e5%87%bd%e6%95%b8-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/87866\/","title":{"rendered":"ORA-22315: \u985e\u578b \u201cstring\u201d \u4e0d\u5305\u542b\u6620\u5c04\u6216\u6392\u5e8f\u51fd\u6578 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-22315-%e9%a1%9e%e5%9e%8b-string-%e4%b8%8d%e5%8c%85%e5%90%ab%e6%98%a0%e5%b0%84%e6%88%96%e6%8e%92%e5%ba%8f%e5%87%bd%e6%95%b8-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae-DCexMoVyKH\">ORA-22315: \u985e\u578b \u201cstring\u201d \u4e0d\u5305\u542b\u6620\u5c04\u6216\u6392\u5e8f\u51fd\u6578 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u6642\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\u662f <code>ORA-22315<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u5728\u4f7f\u7528\u67d0\u500b\u81ea\u5b9a\u7fa9\u985e\u578b\u6642\uff0c\u8a72\u985e\u578b\u7f3a\u5c11\u5fc5\u8981\u7684\u6620\u5c04\u6216\u6392\u5e8f\u51fd\u6578\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e <code>ORA-22315<\/code> \u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"ora-22315-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-DCexMoVyKH\">ORA-22315 \u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u4f60\u5728 Oracle \u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u5c0d\u8c61\u985e\u578b\uff08Object Type\uff09\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230 <code>ORA-22315<\/code> \u932f\u8aa4\u3002\u9019\u500b\u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u662f\uff1a<\/p>\n<ul>\n<li>\u81ea\u5b9a\u7fa9\u985e\u578b\u672a\u5b9a\u7fa9\u6620\u5c04\u51fd\u6578\uff08Mapping Function\uff09\u6216\u6392\u5e8f\u51fd\u6578\uff08Ordering Function\uff09\u3002<\/li>\n<li>\u5728\u4f7f\u7528\u8a72\u985e\u578b\u7684\u4e0a\u4e0b\u6587\u4e2d\uff0cOracle \u7121\u6cd5\u78ba\u5b9a\u5982\u4f55\u6bd4\u8f03\u6216\u6392\u5e8f\u9019\u4e9b\u5c0d\u8c61\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u4f60\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>employee_type<\/code> \u7684\u5c0d\u8c61\u985e\u578b\uff0c\u4f46\u6c92\u6709\u70ba\u5176\u5b9a\u7fa9\u6392\u5e8f\u51fd\u6578\uff0c\u7576\u4f60\u5617\u8a66\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u8a72\u985e\u578b\u6642\uff0c\u5c31\u6703\u51fa\u73fe <code>ORA-22315<\/code> \u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-ora-22315-%e9%8c%af%e8%aa%a4-DCexMoVyKH\">\u5982\u4f55\u4fee\u5fa9 ORA-22315 \u932f\u8aa4<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-22315<\/code> \u932f\u8aa4\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u81ea\u5b9a\u7fa9\u985e\u578b\u5305\u542b\u5fc5\u8981\u7684\u6620\u5c04\u548c\u6392\u5e8f\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6b65\u9a5f\u4f86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff1a<\/p>\n<h3 id=\"1-%e5%ae%9a%e7%be%a9%e6%98%a0%e5%b0%84%e5%87%bd%e6%95%b8-DCexMoVyKH\">1. \u5b9a\u7fa9\u6620\u5c04\u51fd\u6578<\/h3>\n<p>\u6620\u5c04\u51fd\u6578\u7528\u65bc\u5c07\u5c0d\u8c61\u985e\u578b\u7684\u5c6c\u6027\u6620\u5c04\u5230\u6578\u64da\u5eab\u4e2d\u7684\u5217\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u4f86\u5b9a\u7fa9\u6620\u5c04\u51fd\u6578\uff1a<\/p>\n<pre><code>CREATE OR REPLACE TYPE employee_type AS OBJECT (\n    emp_id NUMBER,\n    emp_name VARCHAR2(100),\n    emp_salary NUMBER\n);\n<\/code><\/pre>\n<h3 id=\"2-%e5%ae%9a%e7%be%a9%e6%8e%92%e5%ba%8f%e5%87%bd%e6%95%b8-DCexMoVyKH\">2. \u5b9a\u7fa9\u6392\u5e8f\u51fd\u6578<\/h3>\n<p>\u6392\u5e8f\u51fd\u6578\u7528\u65bc\u78ba\u5b9a\u5c0d\u8c61\u985e\u578b\u7684\u6392\u5e8f\u9806\u5e8f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u70ba <code>employee_type<\/code> \u5b9a\u7fa9\u6392\u5e8f\u51fd\u6578\uff1a<\/p>\n<pre><code>CREATE OR REPLACE TYPE BODY employee_type AS\n    MEMBER FUNCTION compare (other IN employee_type) RETURN INTEGER IS\n    BEGIN\n        RETURN CASE\n            WHEN self.emp_salary &gt; other.emp_salary THEN 1\n            WHEN self.emp_salary &lt; other.emp_salary THEN -1\n            ELSE 0\n        END;\n    END compare;\nEND;\n<\/code><\/pre>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6%e4%bf%ae%e5%be%a9-DCexMoVyKH\">3. \u6e2c\u8a66\u4fee\u5fa9<\/h3>\n<p>\u5728\u5b9a\u7fa9\u4e86\u6620\u5c04\u548c\u6392\u5e8f\u51fd\u6578\u4e4b\u5f8c\uff0c\u60a8\u53ef\u4ee5\u91cd\u65b0\u57f7\u884c\u4e4b\u524d\u5c0e\u81f4\u932f\u8aa4\u7684\u67e5\u8a62\uff0c\u4ee5\u78ba\u8a8d\u554f\u984c\u662f\u5426\u5df2\u89e3\u6c7a\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-ora-22315-%e9%8c%af%e8%aa%a4-DCexMoVyKH\">\u9060\u7a0b\u8655\u7406 ORA-22315 \u932f\u8aa4<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u9032\u884c\u4fee\u5fa9\u3002\u9019\u6642\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u9060\u7a0b\u8655\u7406\u5de5\u5177\u4f86\u5354\u52a9\u89e3\u6c7a\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 SQL Developer \u6216\u5176\u4ed6\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\uff0c\u901a\u904e\u9060\u7a0b\u9023\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u3002<\/li>\n<li>\u78ba\u4fdd\u60a8\u64c1\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u4fee\u6539\u5c0d\u8c61\u985e\u578b\u3002<\/li>\n<li>\u5728\u9032\u884c\u4efb\u4f55\u66f4\u6539\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-DCexMoVyKH\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-22315<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u81ea\u5b9a\u7fa9\u985e\u578b\u7f3a\u5c11\u6620\u5c04\u6216\u6392\u5e8f\u51fd\u6578\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u5b9a\u7fa9\u5fc5\u8981\u7684\u51fd\u6578\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u6b64\u5916\uff0c\u9060\u7a0b\u8655\u7406\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u60a8\u5728\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u7684\u60c5\u6cc1\u4e0b\u9032\u884c\u6545\u969c\u6392\u9664\u3002\u82e5\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-22315 \u932f\u8aa4\uff0c\u4e86\u89e3\u985e\u578b \u201cstring\u201d \u7f3a\u4e4f\u6620\u5c04\u6216\u6392\u5e8f\u51fd\u6578\u7684\u539f\u56e0\uff0c\u4e26\u7372\u53d6\u9060\u7a0b\u8655\u7406\u7684\u6545\u969c\u4fee\u5fa9\u65b9\u6cd5\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-87866","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87866","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=87866"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87866\/revisions"}],"predecessor-version":[{"id":87867,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87866\/revisions\/87867"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=87866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=87866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=87866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}