{"id":91364,"date":"2024-10-18T20:36:22","date_gmt":"2024-10-18T12:36:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/91364\/"},"modified":"2024-10-18T20:36:22","modified_gmt":"2024-10-18T12:36:22","slug":"ora-30493-%e7%99%be%e5%88%86%e4%bd%8d%e5%80%bc%e6%87%89%e8%a9%b2%e6%98%af%e4%bb%8b%e6%96%bc-0-%e5%92%8c-1-%e4%b9%8b%e9%96%93%e7%9a%84%e6%95%b8%e5%ad%97%e3%80%82-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/91364\/","title":{"rendered":"ORA-30493: \u767e\u5206\u4f4d\u503c\u61c9\u8a72\u662f\u4ecb\u65bc 0 \u548c 1 \u4e4b\u9593\u7684\u6578\u5b57\u3002 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-30493-%e7%99%be%e5%88%86%e4%bd%8d%e5%80%bc%e6%87%89%e8%a9%b2%e6%98%af%e4%bb%8b%e6%96%bc-0-%e5%92%8c-1-%e4%b9%8b%e9%96%93%e7%9a%84%e6%95%b8%e5%ad%97-ejcAWzbRGC\">ORA-30493: \u767e\u5206\u4f4d\u503c\u61c9\u8a72\u662f\u4ecb\u65bc 0 \u548c 1 \u4e4b\u9593\u7684\u6578\u5b57<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5206\u6790\u5e2b\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f ORA-30493\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4f7f\u7528\u767e\u5206\u4f4d\u6578\u8a08\u7b97\u6642\uff0c\u8868\u793a\u6240\u63d0\u4f9b\u7684\u767e\u5206\u4f4d\u503c\u4e0d\u5728\u6709\u6548\u7bc4\u570d\u5167\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u9060\u7a0b\u8655\u7406\u3002<\/p>\n<h2 id=\"ora-30493-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-ejcAWzbRGC\">ORA-30493 \u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>ORA-30493 \u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u662f\u7576\u7528\u6236\u5728\u57f7\u884c\u5206\u6790\u51fd\u6578\u6642\uff0c\u63d0\u4f9b\u7684\u767e\u5206\u4f4d\u503c\u4e0d\u5728 0 \u548c 1 \u4e4b\u9593\u3002\u9019\u610f\u5473\u8457\u7528\u6236\u53ef\u80fd\u8f38\u5165\u4e86\u4e00\u500b\u8ca0\u6578\u6216\u5927\u65bc 1 \u7684\u6578\u5b57\uff0c\u9019\u5728\u6578\u64da\u5206\u6790\u4e2d\u662f\u7121\u6548\u7684\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u7576\u4f7f\u7528 <code>PERCENTILE_CONT<\/code> \u51fd\u6578\u6642\uff0c\u6b63\u78ba\u7684\u7528\u6cd5\u61c9\u8a72\u662f\uff1a<\/p>\n<pre><code>SELECT PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY salary) AS median_salary\nFROM employees;<\/code><\/pre>\n<p>\u5982\u679c\u7528\u6236\u932f\u8aa4\u5730\u8f38\u5165\u4e86 <code>PERCENTILE_CONT(1.5)<\/code>\uff0c\u5247\u6703\u89f8\u767c ORA-30493 \u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-ora-30493-%e9%8c%af%e8%aa%a4-ejcAWzbRGC\">\u5982\u4f55\u4fee\u5fa9 ORA-30493 \u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9 ORA-30493 \u932f\u8aa4\u7684\u7b2c\u4e00\u6b65\u662f\u6aa2\u67e5 SQL \u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u767e\u5206\u4f4d\u503c\u3002\u78ba\u4fdd\u6240\u6709\u7684\u767e\u5206\u4f4d\u503c\u90fd\u5728 0 \u548c 1 \u4e4b\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u4fee\u5fa9\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u6aa2\u67e5\u8f38\u5165\u503c\uff1a<\/strong>\u78ba\u4fdd\u6240\u6709\u7684\u767e\u5206\u4f4d\u503c\u90fd\u662f\u6709\u6548\u7684\u3002\u4f8b\u5982\uff0c0.25 \u4ee3\u8868 25%\uff0c\u800c 0.75 \u4ee3\u8868 75%\u3002<\/li>\n<li><strong>\u4f7f\u7528\u689d\u4ef6\u8a9e\u53e5\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u6dfb\u52a0\u689d\u4ef6\u8a9e\u53e5\uff0c\u4ee5\u78ba\u4fdd\u767e\u5206\u4f4d\u503c\u7684\u6709\u6548\u6027\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre><code>SELECT CASE \n           WHEN :percentile_value BETWEEN 0 AND 1 THEN \n               PERCENTILE_CONT(:percentile_value) WITHIN GROUP (ORDER BY salary) \n           ELSE \n               NULL \n       END AS result\nFROM employees;<\/code><\/pre>\n<li><strong>\u6e2c\u8a66\u67e5\u8a62\uff1a<\/strong>\u5728\u57f7\u884c\u67e5\u8a62\u4e4b\u524d\uff0c\u5148\u5728\u958b\u767c\u74b0\u5883\u4e2d\u9032\u884c\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u4e0d\u6703\u51fa\u73fe\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-ora-30493-%e9%8c%af%e8%aa%a4-ejcAWzbRGC\">\u9060\u7a0b\u8655\u7406 ORA-30493 \u932f\u8aa4<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u4f86\u4fee\u5fa9\u932f\u8aa4\u3002\u9019\u6642\uff0c\u9060\u7a0b\u8655\u7406\u6210\u70ba\u4e00\u500b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9060\u7a0b\u8655\u7406\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u9060\u7a0b\u684c\u9762\u5de5\u5177\uff1a<\/strong>\u901a\u904e\u9060\u7a0b\u684c\u9762\u9023\u63a5\u5230\u6578\u64da\u5eab\u4f3a\u670d\u5668\uff0c\u6aa2\u67e5\u548c\u4fee\u6539 SQL \u67e5\u8a62\u3002<\/li>\n<li><strong>\u5229\u7528\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\uff1a<\/strong>\u4f7f\u7528\u5982 Oracle SQL Developer \u7b49\u5de5\u5177\uff0c\u9032\u884c\u9060\u7a0b\u67e5\u8a62\u548c\u8abf\u8a66\u3002<\/li>\n<li><strong>\u8acb\u6c42\u6280\u8853\u652f\u6301\uff1a<\/strong>\u5982\u679c\u554f\u984c\u7121\u6cd5\u89e3\u6c7a\uff0c\u53ef\u4ee5\u8003\u616e\u806f\u7e6b\u6280\u8853\u652f\u6301\u5718\u968a\uff0c\u63d0\u4f9b\u8a73\u7d30\u7684\u932f\u8aa4\u4fe1\u606f\u548c\u67e5\u8a62\u4ee3\u78bc\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ejcAWzbRGC\">\u7e3d\u7d50<\/h2>\n<p>ORA-30493 \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u767e\u5206\u4f4d\u503c\u4e0d\u5728\u6709\u6548\u7bc4\u570d\u5167\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u8f38\u5165\u503c\u3001\u4f7f\u7528\u689d\u4ef6\u8a9e\u53e5\u4ee5\u53ca\u9032\u884c\u5145\u5206\u7684\u6e2c\u8a66\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5728\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u7684\u60c5\u6cc1\u4e0b\uff0c\u9060\u7a0b\u8655\u7406\u4e5f\u662f\u4e00\u500b\u53ef\u884c\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u670d\u52d9\u7684\u7528\u6236\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\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-30493 \u932f\u8aa4\uff0c\u78ba\u4fdd\u767e\u5206\u4f4d\u503c\u4ecb\u65bc 0 \u548c 1 \u4e4b\u9593\uff0c\u63d0\u4f9b ORACLE \u6545\u969c\u4fee\u5fa9\u8207\u9060\u7a0b\u8655\u7406\u6307\u5357\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-91364","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91364","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=91364"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91364\/revisions"}],"predecessor-version":[{"id":91365,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91364\/revisions\/91365"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=91364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=91364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=91364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}