{"id":86214,"date":"2024-10-17T19:24:18","date_gmt":"2024-10-17T11:24:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/86214\/"},"modified":"2024-10-17T19:24:18","modified_gmt":"2024-10-17T11:24:18","slug":"ora-14754-%e5%8d%80%e9%96%93%e5%ad%97%e7%ac%a6%e4%b8%b2%e9%81%8e%e9%95%b7%e3%80%82oracle-%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","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/86214\/","title":{"rendered":"ORA-14754: \u5340\u9593\u5b57\u7b26\u4e32\u904e\u9577\u3002ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-14754-%e5%8d%80%e9%96%93%e5%ad%97%e7%ac%a6%e4%b8%b2%e9%81%8e%e9%95%b7-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-QVslNBJKhR\">ORA-14754: \u5340\u9593\u5b57\u7b26\u4e32\u904e\u9577 &#8211; ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \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\u662f <code>ORA-14754<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u300c\u5340\u9593\u5b57\u7b26\u4e32\u904e\u9577\u300d\uff0c\u9019\u610f\u5473\u8457\u5728\u57f7\u884c\u67d0\u4e9b\u64cd\u4f5c\u6642\uff0c\u5b57\u7b26\u4e32\u7684\u9577\u5ea6\u8d85\u51fa\u4e86 Oracle \u6578\u64da\u5eab\u7684\u9650\u5236\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"ora-14754-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-QVslNBJKhR\">ORA-14754 \u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u4f60\u5728 Oracle \u6578\u64da\u5eab\u4e2d\u57f7\u884c\u67e5\u8a62\u6216\u64cd\u4f5c\u6642\uff0c\u53ef\u80fd\u6703\u56e0\u70ba\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u5c0e\u81f4 <code>ORA-14754<\/code> \u932f\u8aa4\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u7b26\u4e32\u9577\u5ea6\u8d85\u904e\u9650\u5236\uff1a<\/strong> Oracle \u5c0d\u65bc\u67d0\u4e9b\u6578\u64da\u985e\u578b\uff08\u5982 VARCHAR2\u3001CHAR \u7b49\uff09\u6709\u660e\u78ba\u7684\u9577\u5ea6\u9650\u5236\u3002\u5982\u679c\u4f60\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u7684\u5b57\u7b26\u4e32\u8d85\u904e\u4e86\u9019\u500b\u9650\u5236\uff0c\u5c31\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e0d\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong> \u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u4e0d\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u5c07\u4e00\u500b\u9577\u5b57\u7b26\u4e32\u8ce6\u503c\u7d66\u4e00\u500b\u5b9a\u7fa9\u70ba\u8f03\u77ed\u7684 VARCHAR2 \u8b8a\u91cf\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u8a2d\u7f6e\u554f\u984c\uff1a<\/strong> \u6578\u64da\u5eab\u7684\u8a2d\u7f6e\u6216\u914d\u7f6e\u4e0d\u7576\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528\u5206\u5340\u8868\u6642\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-ora-14754-%e9%8c%af%e8%aa%a4-QVslNBJKhR\">\u5982\u4f55\u4fee\u5fa9 ORA-14754 \u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9 <code>ORA-14754<\/code> \u932f\u8aa4\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%ad%97%e7%ac%a6%e4%b8%b2%e9%95%b7%e5%ba%a6-QVslNBJKhR\">1. \u6aa2\u67e5\u5b57\u7b26\u4e32\u9577\u5ea6<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u4f60\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u7684\u5b57\u7b26\u4e32\u7684\u9577\u5ea6\u3002\u78ba\u4fdd\u5b83\u4e0d\u8d85\u904e\u76f8\u61c9\u5b57\u6bb5\u7684\u6700\u5927\u9577\u5ea6\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u7684\u8868\u5b9a\u7fa9\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE example_table (\n    id NUMBER,\n    name VARCHAR2(50)\n);<\/code><\/pre>\n<p>\u90a3\u9ebc\u4f60\u4e0d\u80fd\u63d2\u5165\u8d85\u904e 50 \u500b\u5b57\u7b26\u7684\u5b57\u7b26\u4e32\u5230 <code>name<\/code> \u5b57\u6bb5\u4e2d\u3002<\/p>\n<h3 id=\"2-%e8%aa%bf%e6%95%b4%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-QVslNBJKhR\">2. \u8abf\u6574\u6578\u64da\u985e\u578b<\/h3>\n<p>\u5982\u679c\u4f60\u767c\u73fe\u5b57\u7b26\u4e32\u9577\u5ea6\u78ba\u5be6\u8d85\u904e\u4e86\u9650\u5236\uff0c\u53ef\u4ee5\u8003\u616e\u8abf\u6574\u6578\u64da\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5c07 <code>VARCHAR2(50)<\/code> \u6539\u70ba <code>VARCHAR2(100)<\/code>\uff0c\u4ee5\u5bb9\u7d0d\u66f4\u9577\u7684\u5b57\u7b26\u4e32\uff1a<\/p>\n<pre><code>ALTER TABLE example_table MODIFY name VARCHAR2(100);<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e5%88%86%e5%8d%80%e8%a8%ad%e7%bd%ae-QVslNBJKhR\">3. \u6aa2\u67e5\u5206\u5340\u8a2d\u7f6e<\/h3>\n<p>\u5982\u679c\u4f60\u5728\u4f7f\u7528\u5206\u5340\u8868\uff0c\u8acb\u6aa2\u67e5\u5206\u5340\u7684\u8a2d\u7f6e\u662f\u5426\u6b63\u78ba\u3002\u78ba\u4fdd\u6240\u6709\u5206\u5340\u7684\u5b57\u7b26\u4e32\u9577\u5ea6\u90fd\u7b26\u5408\u8981\u6c42\uff0c\u4e26\u4e14\u6c92\u6709\u8d85\u51fa\u9650\u5236\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8-pl-sql-%e9%80%b2%e8%a1%8c%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-QVslNBJKhR\">4. \u4f7f\u7528 PL\/SQL \u9032\u884c\u932f\u8aa4\u8655\u7406<\/h3>\n<p>\u5728 PL\/SQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u7570\u5e38\u8655\u7406\u4f86\u6355\u7372\u6b64\u932f\u8aa4\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>BEGIN\n    INSERT INTO example_table (id, name) VALUES (1, '\u9019\u662f\u4e00\u500b\u975e\u5e38\u9577\u7684\u5b57\u7b26\u4e32...');\nEXCEPTION\n    WHEN OTHERS THEN\n        IF SQLCODE = -14754 THEN\n            DBMS_OUTPUT.PUT_LINE('\u5b57\u7b26\u4e32\u904e\u9577\uff0c\u8acb\u6aa2\u67e5\u8f38\u5165\u3002');\n        END IF;\nEND;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-QVslNBJKhR\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-14754<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u5b57\u7b26\u4e32\u9577\u5ea6\u8d85\u904e\u4e86\u5b9a\u7fa9\u7684\u9650\u5236\u3002\u901a\u904e\u6aa2\u67e5\u5b57\u7b26\u4e32\u9577\u5ea6\u3001\u8abf\u6574\u6578\u64da\u985e\u578b\u3001\u6aa2\u67e5\u5206\u5340\u8a2d\u7f6e\u4ee5\u53ca\u4f7f\u7528 PL\/SQL \u9032\u884c\u932f\u8aa4\u8655\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u4e86\u89e3\u9019\u4e9b\u57fa\u672c\u6982\u5ff5\u5c07\u6709\u52a9\u65bc\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7dad\u8b77 Oracle \u6578\u64da\u5eab\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u670d\u52d9\uff0c\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-14754 \u932f\u8aa4\uff1a\u5340\u9593\u5b57\u7b26\u4e32\u904e\u9577\u7684\u554f\u984c\uff0c\u63d0\u4f9b\u6545\u969c\u4fee\u5fa9\u548c\u9060\u7a0b\u8655\u7406\u65b9\u6848\uff0c\u52a9\u60a8\u5feb\u901f\u6062\u5fa9 Oracle \u6578\u64da\u5eab\u904b\u884c\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-86214","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/86214","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=86214"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/86214\/revisions"}],"predecessor-version":[{"id":86215,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/86214\/revisions\/86215"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=86214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=86214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=86214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}