{"id":92402,"date":"2024-10-19T05:18:15","date_gmt":"2024-10-18T21:18:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/92402\/"},"modified":"2024-10-19T05:18:16","modified_gmt":"2024-10-18T21:18:16","slug":"ora-39788-%e5%ad%90%e9%a1%9e%e5%9e%8b-string-string-%e5%9c%a8%e5%88%97-string-%e4%b8%ad%e8%a2%ab%e5%a4%9a%e6%ac%a1%e6%8c%87%e5%ae%9a%e3%80%82-oracle-%e5%a0%b1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/92402\/","title":{"rendered":"ORA-39788: \u5b50\u985e\u578b \u201cstring\u201d.\u201dstring\u201d \u5728\u5217 string \u4e2d\u88ab\u591a\u6b21\u6307\u5b9a\u3002 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-39788-%e5%ad%90%e9%a1%9e%e5%9e%8b-string-string-%e5%9c%a8%e5%88%97-string-%e4%b8%ad%e8%a2%ab%e5%a4%9a%e6%ac%a1%e6%8c%87%e5%ae%9a-oracle-%e5%a0%b1%e9%8c%af-BlyXkeKfiy\">ORA-39788: \u5b50\u985e\u578b \u201cstring\u201d.\u201dstring\u201d \u5728\u5217 string \u4e2d\u88ab\u591a\u6b21\u6307\u5b9a &#8211; 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-39788<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u5728 SQL \u8a9e\u53e5\u4e2d\uff0c\u67d0\u500b\u5b50\u985e\u578b\u88ab\u591a\u6b21\u6307\u5b9a\uff0c\u5c0e\u81f4\u6578\u64da\u5eab\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u8a72\u8a9e\u53e5\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e <code>ORA-39788<\/code> \u932f\u8aa4\u7684\u6210\u56e0\u3001\u5f71\u97ff\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e6%88%90%e5%9b%a0-BlyXkeKfiy\">\u932f\u8aa4\u6210\u56e0<\/h2>\n<p><code>ORA-39788<\/code> \u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5728\u5275\u5efa\u6216\u4fee\u6539\u8868\u6642\uff0c\u5c0d\u540c\u4e00\u5217\u7684\u5b50\u985e\u578b\u9032\u884c\u4e86\u91cd\u8907\u5b9a\u7fa9\u3002<\/li>\n<li>\u5728\u4f7f\u7528 PL\/SQL \u9032\u884c\u6578\u64da\u64cd\u4f5c\u6642\uff0c\u5c0d\u540c\u4e00\u8b8a\u91cf\u6216\u53c3\u6578\u9032\u884c\u4e86\u91cd\u8907\u8072\u660e\u3002<\/li>\n<li>\u5728\u4f7f\u7528\u8907\u96dc\u7684 SQL \u8a9e\u53e5\u6642\uff0c\u53ef\u80fd\u56e0\u70ba\u8a9e\u6cd5\u932f\u8aa4\u5c0e\u81f4\u6578\u64da\u5eab\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b SQL \u8a9e\u53e5\u53ef\u80fd\u6703\u5c0e\u81f4 <code>ORA-39788<\/code> \u932f\u8aa4\uff1a<\/p>\n<pre><code>CREATE TABLE example_table (\n    id NUMBER,\n    name VARCHAR2(50),\n    name VARCHAR2(100) -- \u91cd\u8907\u5b9a\u7fa9\n);\n<\/code><\/pre>\n<h2 id=\"%e5%bd%b1%e9%9f%bf-BlyXkeKfiy\">\u5f71\u97ff<\/h2>\n<p>\u7576 <code>ORA-39788<\/code> \u932f\u8aa4\u767c\u751f\u6642\uff0c\u6578\u64da\u5eab\u5c07\u7121\u6cd5\u57f7\u884c\u76f8\u95dc\u7684 SQL \u8a9e\u53e5\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7684\u529f\u80fd\u53d7\u9650\uff0c\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002\u6b64\u5916\uff0c\u9019\u4e5f\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\uff0c\u7279\u5225\u662f\u5728\u9032\u884c\u6279\u91cf\u6578\u64da\u64cd\u4f5c\u6642\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-BlyXkeKfiy\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-39788<\/code> \u932f\u8aa4\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5-sql-%e8%aa%9e%e5%8f%a5-BlyXkeKfiy\">1. \u6aa2\u67e5 SQL \u8a9e\u53e5<\/h3>\n<p>\u9996\u5148\uff0c\u4ed4\u7d30\u6aa2\u67e5\u5f15\u767c\u932f\u8aa4\u7684 SQL \u8a9e\u53e5\u3002\u78ba\u4fdd\u6240\u6709\u5217\u548c\u5b50\u985e\u578b\u90fd\u6b63\u78ba\u5b9a\u7fa9\uff0c\u4e26\u4e14\u6c92\u6709\u91cd\u8907\u7684\u5b9a\u7fa9\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TABLE example_table (\n    id NUMBER,\n    name VARCHAR2(50) -- \u78ba\u4fdd\u9019\u88e1\u6c92\u6709\u91cd\u8907\u5b9a\u7fa9\n);\n<\/code><\/pre>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5-pl-sql-%e4%bb%a3%e7%a2%bc-BlyXkeKfiy\">2. \u6aa2\u67e5 PL\/SQL \u4ee3\u78bc<\/h3>\n<p>\u5982\u679c\u932f\u8aa4\u767c\u751f\u5728 PL\/SQL \u4ee3\u78bc\u4e2d\uff0c\u6aa2\u67e5\u6240\u6709\u8b8a\u91cf\u548c\u53c3\u6578\u7684\u8072\u660e\uff0c\u78ba\u4fdd\u6c92\u6709\u91cd\u8907\u7684\u540d\u7a31\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>DECLARE\n    v_name VARCHAR2(50);\n    v_name VARCHAR2(100); -- \u91cd\u8907\u8072\u660e\nBEGIN\n    -- \u4ee3\u78bc\u908f\u8f2f\nEND;\n<\/code><\/pre>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-BlyXkeKfiy\">3. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u4fee\u6b63\u4e86 SQL \u8a9e\u53e5\u6216 PL\/SQL \u4ee3\u78bc\u5f8c\uff0c\u91cd\u65b0\u57f7\u884c\u76f8\u95dc\u64cd\u4f5c\u4ee5\u9a57\u8b49\u554f\u984c\u662f\u5426\u5df2\u89e3\u6c7a\u3002\u53ef\u4ee5\u4f7f\u7528 <code>SHOW ERRORS<\/code> \u547d\u4ee4\u4f86\u6aa2\u67e5\u662f\u5426\u9084\u6709\u5176\u4ed6\u932f\u8aa4\u3002<\/p>\n<h3 id=\"4-%e5%8f%83%e8%80%83%e6%96%87%e6%aa%94-BlyXkeKfiy\">4. \u53c3\u8003\u6587\u6a94<\/h3>\n<p>\u5982\u679c\u554f\u984c\u4ecd\u7136\u5b58\u5728\uff0c\u5efa\u8b70\u53c3\u8003 Oracle \u5b98\u65b9\u6587\u6a94\u6216\u793e\u5340\u8ad6\u58c7\uff0c\u5c0b\u627e\u985e\u4f3c\u554f\u984c\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-BlyXkeKfiy\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-39788<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u5b50\u985e\u578b\u7684\u91cd\u8907\u5b9a\u7fa9\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5 SQL \u8a9e\u53e5\u548c PL\/SQL \u4ee3\u78bc\uff0c\u4e26\u9075\u5faa\u4e0a\u8ff0\u4fee\u5fa9\u6b65\u9a5f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u904b\u884c\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-39788 \u932f\u8aa4\uff0c\u4e86\u89e3\u5b50\u985e\u578b\u91cd\u8907\u6307\u5b9a\u554f\u984c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u6545\u969c\u4fee\u5fa9\u548c\u9060\u7a0b\u8655\u7406\u65b9\u6848\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-92402","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92402","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=92402"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92402\/revisions"}],"predecessor-version":[{"id":92403,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/92402\/revisions\/92403"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=92402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=92402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=92402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}