{"id":83635,"date":"2024-10-17T00:47:16","date_gmt":"2024-10-16T16:47:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/83635\/"},"modified":"2024-10-17T00:47:16","modified_gmt":"2024-10-16T16:47:16","slug":"ora-02470-%e5%9c%a8%e5%93%88%e5%b8%8c%e8%a1%a8%e9%81%94%e5%bc%8f%e4%b8%ad%e9%8c%af%e8%aa%a4%e4%bd%bf%e7%94%a8-to_date%e3%80%81userenv-%e6%88%96-sysdate%e3%80%82-oracle%e5%a0%b1%e9%8c%af%e6%95%85","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/83635\/","title":{"rendered":"ORA-02470: \u5728\u54c8\u5e0c\u8868\u9054\u5f0f\u4e2d\u932f\u8aa4\u4f7f\u7528 TO_DATE\u3001USERENV \u6216 SYSDATE\u3002 ORACLE\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-02470-%e5%9c%a8%e5%93%88%e5%b8%8c%e8%a1%a8%e9%81%94%e5%bc%8f%e4%b8%ad%e9%8c%af%e8%aa%a4%e4%bd%bf%e7%94%a8-to_date%e3%80%81userenv-%e6%88%96-sysdate-OVUbPwSzel\">ORA-02470: \u5728\u54c8\u5e0c\u8868\u9054\u5f0f\u4e2d\u932f\u8aa4\u4f7f\u7528 TO_DATE\u3001USERENV \u6216 SYSDATE<\/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\u5c31\u662f ORA-02470\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4f7f\u7528\u54c8\u5e0c\u8868\u9054\u5f0f\u6642\uff0c\u5c24\u5176\u662f\u5728\u6d89\u53ca\u5230\u65e5\u671f\u548c\u7cfb\u7d71\u74b0\u5883\u7684\u51fd\u6578\uff0c\u5982 TO_DATE\u3001USERENV \u6216 SYSDATE\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-02470-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-OVUbPwSzel\">ORA-02470 \u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>ORA-02470 \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u5728\u54c8\u5e0c\u8868\u9054\u5f0f\u4e2d\u4e0d\u6b63\u78ba\u5730\u4f7f\u7528\u4e86\u67d0\u4e9b\u51fd\u6578\u3002\u9019\u4e9b\u51fd\u6578\u7684\u7279\u6027\u4f7f\u5f97\u5b83\u5011\u4e0d\u9069\u5408\u7528\u65bc\u54c8\u5e0c\u8868\u9054\u5f0f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>TO_DATE \u51fd\u6578\uff1a<\/strong>TO_DATE \u51fd\u6578\u7528\u65bc\u5c07\u5b57\u7b26\u4e32\u8f49\u63db\u70ba\u65e5\u671f\u683c\u5f0f\u3002\u5728\u54c8\u5e0c\u8868\u9054\u5f0f\u4e2d\u4f7f\u7528 TO_DATE \u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u4e00\u81f4\u7684\u54c8\u5e0c\u503c\uff0c\u56e0\u70ba\u65e5\u671f\u7684\u683c\u5f0f\u548c\u6642\u5340\u53ef\u80fd\u6703\u5f71\u97ff\u7d50\u679c\u3002<\/li>\n<li><strong>USERENV \u51fd\u6578\uff1a<\/strong>USERENV \u51fd\u6578\u7528\u65bc\u7372\u53d6\u7528\u6236\u74b0\u5883\u7684\u76f8\u95dc\u4fe1\u606f\uff0c\u5982\u7528\u6236\u540d\u3001\u6703\u8a71 ID \u7b49\u3002\u9019\u4e9b\u4fe1\u606f\u5728\u54c8\u5e0c\u8a08\u7b97\u4e2d\u53ef\u80fd\u6703\u8b8a\u5316\uff0c\u5c0e\u81f4\u4e0d\u7a69\u5b9a\u7684\u54c8\u5e0c\u503c\u3002<\/li>\n<li><strong>SYSDATE \u51fd\u6578\uff1a<\/strong>SYSDATE \u8fd4\u56de\u7576\u524d\u7684\u7cfb\u7d71\u65e5\u671f\u548c\u6642\u9593\u3002\u7531\u65bc SYSDATE \u7684\u503c\u6703\u96a8\u6642\u9593\u8b8a\u5316\uff0c\u5c07\u5176\u7528\u65bc\u54c8\u5e0c\u8868\u9054\u5f0f\u6703\u5c0e\u81f4\u6bcf\u6b21\u8a08\u7b97\u7684\u7d50\u679c\u4e0d\u540c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-ora-02470-%e9%8c%af%e8%aa%a4-OVUbPwSzel\">\u5982\u4f55\u4fee\u5fa9 ORA-02470 \u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9 ORA-02470 \u932f\u8aa4\u7684\u7b2c\u4e00\u6b65\u662f\u8b58\u5225\u554f\u984c\u7684\u6839\u6e90\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\u7684\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5-sql-%e6%9f%a5%e8%a9%a2-OVUbPwSzel\">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\u5728\u54c8\u5e0c\u8868\u9054\u5f0f\u4e2d\u4e0d\u4f7f\u7528 TO_DATE\u3001USERENV \u6216 SYSDATE \u51fd\u6578\u3002\u53ef\u4ee5\u8003\u616e\u5c07\u9019\u4e9b\u51fd\u6578\u7684\u7d50\u679c\u5b58\u5132\u5728\u8b8a\u91cf\u4e2d\uff0c\u7136\u5f8c\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u9019\u4e9b\u8b8a\u91cf\u3002<\/p>\n<pre><code>DECLARE\n    v_date DATE;\nBEGIN\n    v_date := TO_DATE('2023-10-01', 'YYYY-MM-DD');\n    -- \u4f7f\u7528 v_date \u800c\u4e0d\u662f TO_DATE \u76f4\u63a5\u5728\u54c8\u5e0c\u8868\u9054\u5f0f\u4e2d\nEND;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e9%9d%9c%e6%85%8b%e5%80%bc-OVUbPwSzel\">2. \u4f7f\u7528\u975c\u614b\u503c<\/h3>\n<p>\u5982\u679c\u53ef\u80fd\uff0c\u4f7f\u7528\u975c\u614b\u503c\u4f86\u66ff\u4ee3\u52d5\u614b\u51fd\u6578\u3002\u4f8b\u5982\uff0c\u5c07 SYSDATE \u66ff\u63db\u70ba\u4e00\u500b\u56fa\u5b9a\u7684\u65e5\u671f\u503c\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u56e0\u6642\u9593\u8b8a\u5316\u800c\u5c0e\u81f4\u7684\u54c8\u5e0c\u503c\u4e0d\u4e00\u81f4\u3002<\/p>\n<pre><code>SELECT *\nFROM your_table\nWHERE hash_column = HASH('\u56fa\u5b9a\u503c');<\/code><\/pre>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-OVUbPwSzel\">3. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u9032\u884c\u4fee\u6539\u5f8c\uff0c\u52d9\u5fc5\u6e2c\u8a66 SQL \u67e5\u8a62\u4ee5\u78ba\u4fdd\u554f\u984c\u5df2\u7d93\u89e3\u6c7a\u3002\u53ef\u4ee5\u4f7f\u7528 EXPLAIN PLAN \u4f86\u6aa2\u67e5\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u78ba\u4fdd\u54c8\u5e0c\u8868\u9054\u5f0f\u7684\u8a08\u7b97\u662f\u6b63\u78ba\u7684\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-OVUbPwSzel\">\u7d50\u8ad6<\/h2>\n<p>ORA-02470 \u932f\u8aa4\u662f Oracle \u6578\u64da\u5eab\u4e2d\u5e38\u898b\u7684\u554f\u984c\uff0c\u4e3b\u8981\u7531\u65bc\u5728\u54c8\u5e0c\u8868\u9054\u5f0f\u4e2d\u4e0d\u7576\u4f7f\u7528 TO_DATE\u3001USERENV \u6216 SYSDATE \u51fd\u6578\u6240\u5f15\u8d77\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5 SQL \u67e5\u8a62\u3001\u4f7f\u7528\u975c\u614b\u503c\u4ee5\u53ca\u9032\u884c\u5145\u5206\u7684\u6e2c\u8a66\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u9019\u4e00\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u7406\u89e3\u548c\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u6027\u80fd\uff0c\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7aORA-02470\u932f\u8aa4\uff0c\u4e86\u89e3\u5728\u54c8\u5e0c\u8868\u9054\u5f0f\u4e2d\u932f\u8aa4\u4f7f\u7528TO_DATE\u3001USERENV\u6216SYSDATE\u7684\u539f\u56e0\u53ca\u4fee\u5fa9\u65b9\u6cd5\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-83635","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83635","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=83635"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83635\/revisions"}],"predecessor-version":[{"id":83636,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83635\/revisions\/83636"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=83635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=83635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=83635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}