{"id":91830,"date":"2024-10-19T00:31:17","date_gmt":"2024-10-18T16:31:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/91830\/"},"modified":"2024-10-19T00:31:18","modified_gmt":"2024-10-18T16:31:18","slug":"ora-32037-%e5%9c%a8%e6%88%90%e5%93%a1%e6%a2%9d%e4%bb%b6%e4%b8%ad%e4%b8%8d%e6%94%af%e6%8c%81%e7%9a%84-level-%e4%bd%bf%e7%94%a8-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/91830\/","title":{"rendered":"ORA-32037: \u5728\u6210\u54e1\u689d\u4ef6\u4e2d\u4e0d\u652f\u6301\u7684 LEVEL \u4f7f\u7528 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-32037-%e5%9c%a8%e6%88%90%e5%93%a1%e6%a2%9d%e4%bb%b6%e4%b8%ad%e4%b8%8d%e6%94%af%e6%8c%81%e7%9a%84-level-%e4%bd%bf%e7%94%a8-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0-bgwjwkKquS\">ORA-32037: \u5728\u6210\u54e1\u689d\u4ef6\u4e2d\u4e0d\u652f\u6301\u7684 LEVEL \u4f7f\u7528 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-32037<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4f7f\u7528\u5c64\u7d1a\u67e5\u8a62\u6642\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528 <code>CONNECT BY<\/code> \u5b50\u53e5\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e <code>ORA-32037<\/code> \u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"ora-32037-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-bgwjwkKquS\">ORA-32037 \u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p><code>ORA-32037<\/code> \u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u662f\u4f7f\u7528\u4e86\u4e0d\u652f\u6301\u7684\u5c64\u7d1a\u689d\u4ef6\u3002\u7576\u4f7f\u7528 <code>CONNECT BY<\/code> \u9032\u884c\u5c64\u7d1a\u67e5\u8a62\u6642\uff0cOracle \u6578\u64da\u5eab\u8981\u6c42\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5c64\u7d1a\u689d\u4ef6\u5fc5\u9808\u662f\u6709\u6548\u7684\u3002\u5982\u679c\u5728 <code>WHERE<\/code> \u5b50\u53e5\u6216\u5176\u4ed6\u689d\u4ef6\u4e2d\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u5c64\u7d1a\u53c3\u6578\uff0c\u5c31\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/p>\n<h3 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e9%8c%af%e8%aa%a4%e7%a4%ba%e4%be%8b-bgwjwkKquS\">\u5e38\u898b\u7684\u932f\u8aa4\u793a\u4f8b<\/h3>\n<pre><code>SELECT employee_id, manager_id\nFROM employees\nSTART WITH manager_id IS NULL\nCONNECT BY LEVEL = 2; -- \u9019\u88e1\u7684 LEVEL \u4f7f\u7528\u4e0d\u7576\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u67e5\u8a62\u4e2d\uff0c<code>LEVEL<\/code> \u88ab\u7528\u4f5c\u689d\u4ef6\uff0c\u4f46\u9019\u4e26\u4e0d\u662f\u4e00\u500b\u6709\u6548\u7684\u7528\u6cd5\u3002<code>LEVEL<\/code> \u662f\u4e00\u500b\u865b\u64ec\u5217\uff0c\u8868\u793a\u7576\u524d\u884c\u7684\u5c64\u7d1a\uff0c\u4e0d\u80fd\u76f4\u63a5\u7528\u65bc <code>CONNECT BY<\/code> \u7684\u689d\u4ef6\u4e2d\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-ora-32037-%e9%8c%af%e8%aa%a4-bgwjwkKquS\">\u5982\u4f55\u4fee\u5fa9 ORA-32037 \u932f\u8aa4<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-32037<\/code> \u932f\u8aa4\uff0c\u958b\u767c\u8005\u9700\u8981\u6aa2\u67e5 SQL \u67e5\u8a62\u4e2d\u7684\u5c64\u7d1a\u689d\u4ef6\uff0c\u78ba\u4fdd\u5b83\u5011\u7b26\u5408 Oracle \u7684\u8981\u6c42\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4fee\u5fa9\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u6aa2\u67e5 LEVEL \u7684\u4f7f\u7528\uff1a<\/strong> \u78ba\u4fdd <code>LEVEL<\/code> \u53ea\u7528\u65bc SELECT \u8a9e\u53e5\u4e2d\uff0c\u800c\u4e0d\u662f\u5728 <code>CONNECT BY<\/code> \u5b50\u53e5\u4e2d\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6b63\u78ba\u7684\u689d\u4ef6\uff1a<\/strong> \u5982\u679c\u9700\u8981\u9650\u5236\u5c64\u7d1a\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>WHERE<\/code> \u5b50\u53e5\u4f86\u904e\u6ffe\u7d50\u679c\uff0c\u800c\u4e0d\u662f\u5728 <code>CONNECT BY<\/code> \u4e2d\u4f7f\u7528 <code>LEVEL<\/code>\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u67e5\u8a62\uff1a<\/strong> \u5728\u9032\u884c\u4fee\u6539\u5f8c\uff0c\u52d9\u5fc5\u6e2c\u8a66\u67e5\u8a62\u4ee5\u78ba\u4fdd\u5176\u6b63\u78ba\u6027\u548c\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h3 id=\"%e4%bf%ae%e6%ad%a3%e5%be%8c%e7%9a%84%e6%9f%a5%e8%a9%a2%e7%a4%ba%e4%be%8b-bgwjwkKquS\">\u4fee\u6b63\u5f8c\u7684\u67e5\u8a62\u793a\u4f8b<\/h3>\n<pre><code>SELECT employee_id, manager_id\nFROM employees\nSTART WITH manager_id IS NULL\nCONNECT BY PRIOR employee_id = manager_id\nAND LEVEL &lt;= 2; -- \u4f7f\u7528 LEVEL \u9032\u884c\u904e\u6ffe\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4fee\u6b63\u5f8c\u7684\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u5c07 <code>LEVEL<\/code> \u7528\u65bc\u904e\u6ffe\u7d50\u679c\uff0c\u800c\u4e0d\u662f\u5728 <code>CONNECT BY<\/code> \u4e2d\u76f4\u63a5\u4f7f\u7528\uff0c\u9019\u6a23\u5c31\u80fd\u907f\u514d <code>ORA-32037<\/code> \u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-bgwjwkKquS\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-32037<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u4e0d\u7576\u4f7f\u7528\u5c64\u7d1a\u689d\u4ef6\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5 SQL \u67e5\u8a62\u4e26\u9075\u5faa\u6b63\u78ba\u7684\u8a9e\u6cd5\u898f\u5247\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u9032\u884c\u8907\u96dc\u5c64\u7d1a\u67e5\u8a62\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u7406\u89e3 <code>CONNECT BY<\/code> \u7684\u6b63\u78ba\u7528\u6cd5\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u6709\u95dc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u512a\u5316\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-32037 \u932f\u8aa4\uff0c\u4e86\u89e3\u5728 Oracle \u4e2d\u6210\u54e1\u689d\u4ef6\u4e0d\u652f\u6301 LEVEL \u7684\u539f\u56e0\u53ca\u6545\u969c\u4fee\u5fa9\u65b9\u6cd5\uff0c\u63d0\u5347\u9060\u7a0b\u8655\u7406\u6548\u7387\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-91830","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91830","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=91830"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91830\/revisions"}],"predecessor-version":[{"id":91831,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91830\/revisions\/91831"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=91830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=91830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=91830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}