{"id":91440,"date":"2024-10-18T21:14:19","date_gmt":"2024-10-18T13:14:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/91440\/"},"modified":"2024-10-18T21:14:20","modified_gmt":"2024-10-18T13:14:20","slug":"ora-30754-%e5%88%97%e6%88%96%e8%a1%a8-string-%e5%8f%aa%e5%ad%98%e5%84%b2%e5%96%ae%e4%b8%80%e9%a1%9e%e5%9e%8b%e7%9a%84%e7%89%a9%e4%bb%b6-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/91440\/","title":{"rendered":"ORA-30754: \u5217\u6216\u8868 string \u53ea\u5b58\u5132\u55ae\u4e00\u985e\u578b\u7684\u7269\u4ef6 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-30754-%e5%88%97%e6%88%96%e8%a1%a8-string-%e5%8f%aa%e5%ad%98%e5%84%b2%e5%96%ae%e4%b8%80%e9%a1%9e%e5%9e%8b%e7%9a%84%e7%89%a9%e4%bb%b6-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-iSqNTfWqpp\">ORA-30754: \u5217\u6216\u8868 string \u53ea\u5b58\u5132\u55ae\u4e00\u985e\u578b\u7684\u7269\u4ef6 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-30754<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u67d0\u500b\u5217\u6216\u8868\u53ea\u5141\u8a31\u5b58\u5132\u55ae\u4e00\u985e\u578b\u7684\u7269\u4ef6\uff0c\u7576\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u4e0d\u7b26\u5408\u8a72\u985e\u578b\u7684\u6578\u64da\u6642\uff0c\u5c31\u6703\u89f8\u767c\u6b64\u932f\u8aa4\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e <code>ORA-30754<\/code> \u7684\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u9060\u7a0b\u8655\u7406\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-iSqNTfWqpp\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p><code>ORA-30754<\/code> \u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5617\u8a66\u5728\u4e00\u500b\u5b9a\u7fa9\u70ba\u67d0\u4e00\u7279\u5b9a\u6578\u64da\u985e\u578b\u7684\u5217\u4e2d\u63d2\u5165\u4e0d\u7b26\u5408\u8a72\u985e\u578b\u7684\u6578\u64da\u3002<\/li>\n<li>\u5728\u4f7f\u7528\u7269\u4ef6\u985e\u578b\u6642\uff0c\u5c0d\u65bc\u7269\u4ef6\u7684\u5c6c\u6027\u985e\u578b\u4e0d\u5339\u914d\u3002<\/li>\n<li>\u5728\u4f7f\u7528\u96c6\u5408\u985e\u578b\uff08\u5982\u5d4c\u5957\u8868\u6216 VARRAY\uff09\u6642\uff0c\u63d2\u5165\u7684\u6578\u64da\u985e\u578b\u4e0d\u6b63\u78ba\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u4e00\u500b\u5217\u88ab\u5b9a\u7fa9\u70ba\u5b58\u5132 <code>NUMBER<\/code> \u985e\u578b\u7684\u6578\u64da\uff0c\u4f46\u537b\u5617\u8a66\u63d2\u5165\u4e00\u500b <code>VARCHAR2<\/code> \u985e\u578b\u7684\u5b57\u7b26\u4e32\uff0c\u5247\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-iSqNTfWqpp\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-30754<\/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%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-iSqNTfWqpp\">1. \u6aa2\u67e5\u6578\u64da\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u5c0e\u81f4\u932f\u8aa4\u7684\u5217\u6216\u8868\u7684\u6578\u64da\u985e\u578b\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u67e5\u770b\u8868\u7d50\u69cb\uff1a<\/p>\n<pre><code>SELECT column_name, data_type \nFROM user_tab_columns \nWHERE table_name = 'YOUR_TABLE_NAME';<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a%e7%9a%84%e9%a1%9e%e5%9e%8b-iSqNTfWqpp\">2. \u78ba\u8a8d\u63d2\u5165\u6578\u64da\u7684\u985e\u578b<\/h3>\n<p>\u78ba\u4fdd\u60a8\u5617\u8a66\u63d2\u5165\u7684\u6578\u64da\u985e\u578b\u8207\u8868\u4e2d\u5b9a\u7fa9\u7684\u6578\u64da\u985e\u578b\u76f8\u7b26\u3002\u5982\u679c\u4e0d\u76f8\u7b26\uff0c\u5247\u9700\u8981\u9032\u884c\u985e\u578b\u8f49\u63db\u6216\u4fee\u6539\u63d2\u5165\u7684\u6578\u64da\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e9%a1%9e%e5%9e%8b%e8%bd%89%e6%8f%9b%e5%87%bd%e6%95%b8-iSqNTfWqpp\">3. \u4f7f\u7528\u985e\u578b\u8f49\u63db\u51fd\u6578<\/h3>\n<p>\u5982\u679c\u9700\u8981\u5c07\u6578\u64da\u8f49\u63db\u70ba\u6b63\u78ba\u7684\u985e\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528 Oracle \u63d0\u4f9b\u7684\u985e\u578b\u8f49\u63db\u51fd\u6578\uff0c\u4f8b\u5982 <code>TO_NUMBER<\/code> \u6216 <code>TO_CHAR<\/code>\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>INSERT INTO your_table (your_column) \nVALUES (TO_NUMBER('123')); <\/code><\/pre>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e7%89%a9%e4%bb%b6%e9%a1%9e%e5%9e%8b-iSqNTfWqpp\">4. \u6aa2\u67e5\u7269\u4ef6\u985e\u578b<\/h3>\n<p>\u5982\u679c\u4f7f\u7528\u4e86\u7269\u4ef6\u985e\u578b\uff0c\u8acb\u6aa2\u67e5\u7269\u4ef6\u7684\u5c6c\u6027\u985e\u578b\u662f\u5426\u6b63\u78ba\u3002\u78ba\u4fdd\u6240\u6709\u5c6c\u6027\u90fd\u7b26\u5408\u5b9a\u7fa9\u7684\u985e\u578b\u3002<\/p>\n<h3 id=\"5-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-iSqNTfWqpp\">5. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u9032\u884c\u4fee\u6539\u5f8c\uff0c\u91cd\u65b0\u57f7\u884c\u63d2\u5165\u6216\u66f4\u65b0\u64cd\u4f5c\uff0c\u78ba\u4fdd\u4e0d\u518d\u51fa\u73fe <code>ORA-30754<\/code> \u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-iSqNTfWqpp\">\u9060\u7a0b\u8655\u7406<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u9032\u884c\u9060\u7a0b\u8655\u7406\u4f86\u89e3\u6c7a\u6b64\u932f\u8aa4\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u5be6\u73fe\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u9060\u7a0b\u684c\u9762\u9023\u63a5\u5230\u6578\u64da\u5eab\u4f3a\u670d\u5668\uff0c\u76f4\u63a5\u9032\u884c\u6545\u969c\u6392\u9664\u3002<\/li>\n<li>\u5229\u7528 Oracle \u7684\u9060\u7a0b\u8a3a\u65b7\u5de5\u5177\uff0c\u6536\u96c6\u932f\u8aa4\u65e5\u8a8c\u548c\u6027\u80fd\u6578\u64da\u3002<\/li>\n<li>\u8207\u6578\u64da\u5eab\u4f9b\u61c9\u5546\u6216\u6280\u8853\u652f\u6301\u5718\u968a\u806f\u7e6b\uff0c\u7372\u53d6\u5c08\u696d\u7684\u5e6b\u52a9\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-iSqNTfWqpp\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-30754<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u6578\u64da\u985e\u578b\u3001\u78ba\u8a8d\u63d2\u5165\u6578\u64da\u7684\u985e\u578b\u4ee5\u53ca\u4f7f\u7528\u985e\u578b\u8f49\u63db\u51fd\u6578\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u6b64\u5916\uff0c\u9060\u7a0b\u8655\u7406\u4e5f\u53ef\u4ee5\u5e6b\u52a9\u60a8\u5feb\u901f\u5b9a\u4f4d\u548c\u4fee\u5fa9\u6545\u969c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u904b\u884c\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-30754 \u932f\u8aa4\uff0c\u4e86\u89e3 Oracle \u4e2d\u5217\u6216\u8868\u50c5\u5b58\u5132\u55ae\u4e00\u985e\u578b\u7269\u4ef6\u7684\u554f\u984c\uff0c\u63d0\u4f9b\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-91440","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91440","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=91440"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91440\/revisions"}],"predecessor-version":[{"id":91441,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91440\/revisions\/91441"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=91440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=91440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=91440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}