{"id":87848,"date":"2024-10-18T04:29:17","date_gmt":"2024-10-17T20:29:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/87848\/"},"modified":"2024-10-18T04:29:18","modified_gmt":"2024-10-17T20:29:18","slug":"ora-22293-lob-%e5%9c%a8%e5%90%8c%e4%b8%80%e4%ba%8b%e5%8b%99%e4%b8%ad%e5%b7%b2%e7%b6%93%e6%89%93%e9%96%8b-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","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/87848\/","title":{"rendered":"ORA-22293: LOB \u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u5df2\u7d93\u6253\u958b ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-22293-lob-%e5%9c%a8%e5%90%8c%e4%b8%80%e4%ba%8b%e5%8b%99%e4%b8%ad%e5%b7%b2%e7%b6%93%e6%89%93%e9%96%8b-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-SQNwvjAWjk\">ORA-22293: LOB \u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u5df2\u7d93\u6253\u958b 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-22293<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u5927\u5c0d\u8c61\uff08LOB\uff0cLarge Object\uff09\u64cd\u4f5c\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u91cd\u8907\u6253\u958b LOB \u5c0d\u8c61\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"ora-22293-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-SQNwvjAWjk\">ORA-22293 \u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u4f60\u5728 Oracle \u6578\u64da\u5eab\u4e2d\u64cd\u4f5c LOB \u5c0d\u8c61\u6642\uff0c\u53ef\u80fd\u6703\u56e0\u70ba\u4ee5\u4e0b\u539f\u56e0\u800c\u89f8\u767c <code>ORA-22293<\/code> \u932f\u8aa4\uff1a<\/p>\n<ul>\n<li><strong>\u91cd\u8907\u6253\u958b LOB\uff1a<\/strong>\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\uff0c\u5c0d\u540c\u4e00 LOB \u5c0d\u8c61\u9032\u884c\u591a\u6b21\u6253\u958b\u64cd\u4f5c\uff0c\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e8b\u52d9\u672a\u6b63\u78ba\u63d0\u4ea4\uff1a<\/strong>\u5982\u679c\u5728\u64cd\u4f5c LOB \u6642\uff0c\u4e8b\u52d9\u672a\u80fd\u6b63\u78ba\u63d0\u4ea4\u6216\u56de\u6efe\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4 LOB \u5c0d\u8c61\u7684\u72c0\u614b\u4e0d\u4e00\u81f4\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\u4e0d\u7576\uff1a<\/strong>\u5728\u8655\u7406 LOB \u5c0d\u8c61\u6642\uff0c\u672a\u80fd\u6b63\u78ba\u91cb\u653e\u8cc7\u6e90\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4 LOB \u5c0d\u8c61\u4fdd\u6301\u6253\u958b\u72c0\u614b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%9a%84%e5%bd%b1%e9%9f%bf-SQNwvjAWjk\">\u932f\u8aa4\u7684\u5f71\u97ff<\/h2>\n<p>\u7576 <code>ORA-22293<\/code> \u932f\u8aa4\u767c\u751f\u6642\uff0c\u5c07\u6703\u5f71\u97ff\u5230\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u53ef\u7528\u6027\u3002\u958b\u767c\u8005\u7121\u6cd5\u5c0d LOB \u5c0d\u8c61\u9032\u884c\u8b80\u53d6\u6216\u5beb\u5165\u64cd\u4f5c\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7684\u529f\u80fd\u53d7\u9650\uff0c\u751a\u81f3\u5f71\u97ff\u5230\u7528\u6236\u9ad4\u9a57\u3002\u56e0\u6b64\uff0c\u53ca\u6642\u4fee\u5fa9\u6b64\u932f\u8aa4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-SQNwvjAWjk\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u70ba\u4e86\u4fee\u5fa9 <code>ORA-22293<\/code> \u932f\u8aa4\uff0c\u53ef\u4ee5\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e4%ba%8b%e5%8b%99%e7%ae%a1%e7%90%86-SQNwvjAWjk\">1. \u6aa2\u67e5\u4e8b\u52d9\u7ba1\u7406<\/h3>\n<p>\u78ba\u4fdd\u5728\u64cd\u4f5c LOB \u5c0d\u8c61\u6642\uff0c\u4e8b\u52d9\u7684\u7ba1\u7406\u662f\u6b63\u78ba\u7684\u3002\u6bcf\u6b21\u6253\u958b LOB \u5c0d\u8c61\u5f8c\uff0c\u61c9\u8a72\u5728\u5b8c\u6210\u64cd\u4f5c\u5f8c\u7acb\u5373\u95dc\u9589\u5b83\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>DECLARE\n    l_blob BLOB;\n    l_offset INTEGER := 1;\n    l_buffer RAW(32767);\nBEGIN\n    -- \u6253\u958b LOB \u5c0d\u8c61\n    SELECT blob_column INTO l_blob FROM your_table WHERE your_condition FOR UPDATE;\n    \n    -- \u9032\u884c\u64cd\u4f5c\n    DBMS_LOB.READ(l_blob, DBMS_LOB.GETLENGTH(l_blob), l_offset, l_buffer);\n    \n    -- \u95dc\u9589 LOB \u5c0d\u8c61\n    -- \u9019\u88e1\u4e0d\u9700\u8981\u986f\u5f0f\u95dc\u9589\uff0c\u56e0\u70ba\u5728\u4e8b\u52d9\u7d50\u675f\u6642\u6703\u81ea\u52d5\u91cb\u653e\nEND;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e9%81%a9%e7%95%b6%e7%9a%84%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-SQNwvjAWjk\">2. \u4f7f\u7528\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406<\/h3>\n<p>\u5728\u9032\u884c LOB \u64cd\u4f5c\u6642\uff0c\u61c9\u8a72\u4f7f\u7528\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u4ee5\u4fbf\u5728\u767c\u751f\u932f\u8aa4\u6642\u80fd\u5920\u53ca\u6642\u6355\u7372\u4e26\u8655\u7406\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>BEGIN\n    -- LOB \u64cd\u4f5c\nEXCEPTION\n    WHEN OTHERS THEN\n        -- \u932f\u8aa4\u8655\u7406\n        RAISE_APPLICATION_ERROR(-20001, 'LOB \u64cd\u4f5c\u5931\u6557: ' || SQLERRM);\nEND;<\/code><\/pre>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-SQNwvjAWjk\">3. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u4fee\u5fa9\u932f\u8aa4\u5f8c\uff0c\u61c9\u8a72\u9032\u884c\u5145\u5206\u7684\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u554f\u984c\u5df2\u7d93\u89e3\u6c7a\u3002\u53ef\u4ee5\u901a\u904e\u57f7\u884c\u76f8\u540c\u7684\u64cd\u4f5c\u4f86\u9a57\u8b49 LOB \u662f\u5426\u80fd\u5920\u6b63\u5e38\u8b80\u53d6\u548c\u5beb\u5165\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-SQNwvjAWjk\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-22293<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc LOB \u5c0d\u8c61\u7684\u7ba1\u7406\u4e0d\u7576\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u6b63\u78ba\u7684\u4e8b\u52d9\u7ba1\u7406\u3001\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406\u548c\u5145\u5206\u7684\u6e2c\u8a66\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u6709\u95dc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u6545\u969c\u6392\u9664\u7684\u8cc7\u8a0a\uff0c\u60a8\u53ef\u4ee5\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\uff0c\u7372\u53d6\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u6e90\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-22293 \u932f\u8aa4\uff0c\u4e86\u89e3 LOB \u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u5df2\u6253\u958b\u7684\u539f\u56e0\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-87848","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87848","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=87848"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87848\/revisions"}],"predecessor-version":[{"id":87849,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87848\/revisions\/87849"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=87848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=87848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=87848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}