{"id":91192,"date":"2024-10-18T19:10:21","date_gmt":"2024-10-18T11:10:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/91192\/"},"modified":"2024-10-18T19:10:22","modified_gmt":"2024-10-18T11:10:22","slug":"ora-29936-%e5%8f%aa%e6%9c%89%e8%88%87%e5%88%97%e6%88%96%e7%b4%a2%e5%bc%95%e7%9b%b8%e9%97%9c%e7%9a%84-null-%e9%97%9c%e8%81%af%e6%98%af%e5%85%81%e8%a8%b1%e7%9a%84-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/91192\/","title":{"rendered":"ORA-29936: \u53ea\u6709\u8207\u5217\u6216\u7d22\u5f15\u76f8\u95dc\u7684 NULL \u95dc\u806f\u662f\u5141\u8a31\u7684 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-29936-%e5%8f%aa%e6%9c%89%e8%88%87%e5%88%97%e6%88%96%e7%b4%a2%e5%bc%95%e7%9b%b8%e9%97%9c%e7%9a%84-null-%e9%97%9c%e8%81%af%e6%98%af%e5%85%81%e8%a8%b1%e7%9a%84-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85-lgcSuQQbIk\">ORA-29936: \u53ea\u6709\u8207\u5217\u6216\u7d22\u5f15\u76f8\u95dc\u7684 NULL \u95dc\u806f\u662f\u5141\u8a31\u7684 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-29936<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u57f7\u884c\u67e5\u8a62\u6216\u6578\u64da\u64cd\u4f5c\u6642\uff0c\u7279\u5225\u662f\u7576\u6d89\u53ca\u5230 NULL \u503c\u7684\u95dc\u806f\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=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-lgcSuQQbIk\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p><code>ORA-29936<\/code> \u932f\u8aa4\u7684\u5177\u9ad4\u4fe1\u606f\u70ba\u300c\u53ea\u6709\u8207\u5217\u6216\u7d22\u5f15\u76f8\u95dc\u7684 NULL \u95dc\u806f\u662f\u5141\u8a31\u7684\u300d\u3002\u9019\u610f\u5473\u8457\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0cOracle \u6578\u64da\u5eab\u4e0d\u5141\u8a31\u5c07 NULL \u503c\u8207\u67d0\u4e9b\u5217\u6216\u7d22\u5f15\u9032\u884c\u95dc\u806f\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684 JOIN \u689d\u4ef6\uff0c\u5c0e\u81f4 NULL \u503c\u7684\u51fa\u73fe\u3002<\/li>\n<li>\u5728\u5275\u5efa\u7d22\u5f15\u6642\uff0c\u672a\u6b63\u78ba\u8655\u7406 NULL \u503c\u3002<\/li>\n<li>\u5728\u4f7f\u7528\u805a\u5408\u51fd\u6578\u6642\uff0c\u672a\u8003\u616e\u5230 NULL \u503c\u7684\u5f71\u97ff\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%bd%b1%e9%9f%bf%e7%af%84%e5%9c%8d-lgcSuQQbIk\">\u5f71\u97ff\u7bc4\u570d<\/h2>\n<p>\u7576 <code>ORA-29936<\/code> \u932f\u8aa4\u767c\u751f\u6642\uff0c\u5c07\u6703\u5f71\u97ff\u5230\u6578\u64da\u7684\u67e5\u8a62\u548c\u64cd\u4f5c\uff0c\u53ef\u80fd\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7121\u6cd5\u6b63\u5e38\u904b\u884c\u3002\u9019\u5c0d\u65bc\u4f9d\u8cf4\u6578\u64da\u5eab\u9032\u884c\u696d\u52d9\u904b\u4f5c\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u53ef\u80fd\u6703\u9020\u6210\u91cd\u5927\u7684\u640d\u5931\u3002\u56e0\u6b64\uff0c\u53ca\u6642\u8b58\u5225\u548c\u4fee\u5fa9\u9019\u4e00\u932f\u8aa4\u662f\u81f3\u95dc\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-lgcSuQQbIk\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-29936<\/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-%e6%9f%a5%e8%a9%a2-lgcSuQQbIk\">1. \u6aa2\u67e5 SQL \u67e5\u8a62<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u5f15\u767c\u932f\u8aa4\u7684 SQL \u67e5\u8a62\u3002\u78ba\u4fdd\u6240\u6709\u7684 JOIN \u689d\u4ef6\u90fd\u662f\u6b63\u78ba\u7684\uff0c\u4e26\u4e14\u4e0d\u6703\u5c0e\u81f4 NULL \u503c\u7684\u51fa\u73fe\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT a.column1, b.column2\nFROM table_a a\nJOIN table_b b ON a.id = b.id\nWHERE a.column1 IS NOT NULL;<\/code><\/pre>\n<h3 id=\"2-%e8%99%95%e7%90%86-null-%e5%80%bc-lgcSuQQbIk\">2. \u8655\u7406 NULL \u503c<\/h3>\n<p>\u5728\u67e5\u8a62\u4e2d\uff0c\u8003\u616e\u4f7f\u7528 <code>COALESCE<\/code> \u6216 <code>NVL<\/code> \u51fd\u6578\u4f86\u8655\u7406 NULL \u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT COALESCE(a.column1, 'default_value') AS column1\nFROM table_a a;<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e7%b4%a2%e5%bc%95%e8%a8%ad%e7%bd%ae-lgcSuQQbIk\">3. \u6aa2\u67e5\u7d22\u5f15\u8a2d\u7f6e<\/h3>\n<p>\u5982\u679c\u932f\u8aa4\u8207\u7d22\u5f15\u6709\u95dc\uff0c\u6aa2\u67e5\u7d22\u5f15\u7684\u8a2d\u7f6e\uff0c\u78ba\u4fdd\u5b83\u5011\u6b63\u78ba\u8655\u7406 NULL \u503c\u3002\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u90e8\u5206\u7d22\u5f15\u4f86\u907f\u514d NULL \u503c\u7684\u554f\u984c\u3002<\/p>\n<h3 id=\"4-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-lgcSuQQbIk\">4. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u9032\u884c\u4e86\u4e0a\u8ff0\u4fee\u6539\u5f8c\uff0c\u91cd\u65b0\u57f7\u884c\u67e5\u8a62\u4ee5\u9a57\u8b49\u554f\u984c\u662f\u5426\u5df2\u89e3\u6c7a\u3002\u78ba\u4fdd\u6240\u6709\u7684\u6578\u64da\u64cd\u4f5c\u90fd\u80fd\u6b63\u5e38\u9032\u884c\uff0c\u4e26\u4e14\u4e0d\u518d\u51fa\u73fe <code>ORA-29936<\/code> \u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-lgcSuQQbIk\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-29936<\/code> \u932f\u8aa4\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u4e3b\u8981\u8207 NULL \u503c\u7684\u8655\u7406\u6709\u95dc\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5 SQL \u67e5\u8a62\u3001\u8655\u7406 NULL \u503c\u4ee5\u53ca\u6aa2\u67e5\u7d22\u5f15\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u5c0d\u65bc\u4f9d\u8cf4\u6578\u64da\u5eab\u9032\u884c\u696d\u52d9\u904b\u4f5c\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u53ca\u6642\u4fee\u5fa9\u9019\u4e00\u932f\u8aa4\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\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\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-29936 \u932f\u8aa4\uff0c\u4e86\u89e3\u50c5\u5141\u8a31\u8207\u5217\u6216\u7d22\u5f15\u76f8\u95dc\u7684 NULL \u95dc\u806f\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-91192","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91192","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=91192"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91192\/revisions"}],"predecessor-version":[{"id":91193,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91192\/revisions\/91193"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=91192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=91192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=91192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}