{"id":6082,"date":"2024-11-14T11:38:24","date_gmt":"2024-11-14T03:38:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6082\/"},"modified":"2024-11-14T11:38:24","modified_gmt":"2024-11-14T03:38:24","slug":"oracle%e6%97%a0%e6%95%88%e6%95%b0%e5%ad%97%e5%a6%82%e4%bd%95%e6%8e%92%e6%9f%a5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6082\/","title":{"rendered":"oracle\u65e0\u6548\u6570\u5b57\u5982\u4f55\u6392\u67e5"},"content":{"rendered":"<blockquote><p>\n  oracle \u65e0\u6548\u6570\u5b57\u9519\u8bef\u53ef\u80fd\u7531\u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\u3001\u6570\u5b57\u6ea2\u51fa\u3001\u6570\u636e\u8f6c\u6362\u9519\u8bef\u6216\u6570\u636e\u635f\u574f\u5f15\u8d77\u3002\u6392\u67e5\u6b65\u9aa4\u5305\u62ec\u68c0\u67e5\u6570\u636e\u7c7b\u578b\u3001\u68c0\u6d4b\u6570\u5b57\u6ea2\u51fa\u3001\u68c0\u67e5\u6570\u636e\u8f6c\u6362\u3001\u6392\u67e5\u6570\u636e\u635f\u574f\uff0c\u5e76\u63a2\u7d22\u5176\u4ed6\u53ef\u80fd\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5982\u914d\u7f6e nls_numeric_characters \u53c2\u6570\u548c\u542f\u7528\u6570\u636e\u9a8c\u8bc1\u65e5\u5fd7\u8bb0\u5f55\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/12\/2024061221512145914.jpg\" class=\"aligncenter\" title=\"oracle\u65e0\u6548\u6570\u5b57\u5982\u4f55\u6392\u67e5\u63d2\u56fe\" alt=\"oracle\u65e0\u6548\u6570\u5b57\u5982\u4f55\u6392\u67e5\u63d2\u56fe\" \/><\/p>\n<p><strong>Oracle \u65e0\u6548\u6570\u5b57\u6392\u67e5\u6307\u5357<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong> Oracle \u4e0a\u51fa\u73b0\u65e0\u6548\u6570\u5b57\u9519\u8bef\uff0c\u5982\u4f55\u6392\u67e5\uff1f<\/p>\n<p><strong>\u89e3\u7b54\uff1a<\/strong><\/p>\n<p>\u65e0\u6548\u6570\u5b57\u9519\u8bef\u5728 Oracle \u4e2d\u901a\u5e38\u7531\u4ee5\u4e0b\u539f\u56e0\u5f15\u53d1\uff1a<\/p>\n<p><strong>1. \u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\uff1a<\/strong><\/p>\n<ul>\n<li>\u5c1d\u8bd5\u5c06\u975e\u6570\u5b57\u503c\u63d2\u5165\u6570\u5b57\u5b57\u6bb5\uff08\u4f8b\u5982\uff0c\u5c06\u5b57\u7b26\u4e32 &#8220;abc&#8221; \u63d2\u5165 NUMBER \u5b57\u6bb5\uff09\u3002<\/li>\n<li>\u5c1d\u8bd5\u5c06\u6570\u5b57\u503c\u63d2\u5165\u957f\u5ea6\u4e0d\u8db3\u7684\u6570\u5b57\u5b57\u6bb5\uff08\u4f8b\u5982\uff0c\u5c06 1234567890123456789 \u63d2\u5165 NUMBER(6) \u5b57\u6bb5\uff09\u3002<\/li>\n<\/ul>\n<p><strong>2. \u6570\u5b57\u6ea2\u51fa\uff1a<\/strong><\/p>\n<ul>\n<li>\u5c1d\u8bd5\u5b58\u50a8\u8d85\u51fa\u4e86\u5b57\u6bb5\u5b9a\u4e49\u5141\u8bb8\u8303\u56f4\u7684\u5927\u6570\u5b57\u3002<\/li>\n<\/ul>\n<p><strong>3. \u6570\u636e\u8f6c\u6362\u9519\u8bef\uff1a<\/strong><\/p>\n<ul>\n<li>\u5c1d\u8bd5\u5c06\u6570\u5b57\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6570\u5b57\u7c7b\u578b\u65f6\u51fa\u73b0\u9519\u8bef\uff08\u4f8b\u5982\uff0c\u4f7f\u7528 TO_NUMBER() \u51fd\u6570\u65f6\uff09\u3002<\/li>\n<\/ul>\n<p><strong>4. \u6570\u636e\u635f\u574f\uff1a<\/strong><\/p>\n<ul>\n<li>\u6570\u636e\u5b58\u50a8\u6216\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u635f\u574f\uff0c\u5bfc\u81f4\u65e0\u6548\u6570\u5b57\u5b57\u7b26\u5d4c\u5165\u6570\u636e\u4e2d\u3002<\/li>\n<\/ul>\n<p><strong>\u6392\u67e5\u6b65\u9aa4\uff1a<\/strong><\/p>\n<p><strong>1. \u68c0\u67e5\u6570\u636e\u7c7b\u578b\uff1a<\/strong><\/p>\n<ul>\n<li>\u786e\u8ba4\u5c1d\u8bd5\u63d2\u5165\u6570\u636e\u7684\u5b57\u6bb5\u662f\u5426\u4e3a\u6570\u5b57\u7c7b\u578b\uff08NUMBER\u3001INTEGER \u7b49\uff09\u3002<\/li>\n<li>\u68c0\u67e5\u5b57\u6bb5\u7684\u957f\u5ea6\u662f\u5426\u8db3\u4ee5\u5bb9\u7eb3\u8981\u63d2\u5165\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<p><strong>2. \u68c0\u67e5\u6570\u5b57\u6ea2\u51fa\uff1a<\/strong><\/p>\n<ul>\n<li>\u786e\u5b9a\u8981\u63d2\u5165\u7684\u6570\u5b57\u662f\u5426\u8d85\u51fa\u4e86\u5b57\u6bb5\u5b9a\u4e49\u7684\u8303\u56f4\u3002\u4f7f\u7528\u6570\u636e\u5b57\u5178\u89c6\u56fe USER_TAB_COLUMNS \u67e5\u8be2\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u548c\u957f\u5ea6\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p><strong>3. \u68c0\u67e5\u6570\u636e\u8f6c\u6362\u9519\u8bef\uff1a<\/strong><\/p>\n<ul>\n<li>\u4ed4\u7ec6\u68c0\u67e5 TO_NUMBER() \u6216\u7c7b\u4f3c\u51fd\u6570\u7684\u8bed\u6cd5\u3002\u786e\u4fdd\u6570\u5b57\u5b57\u7b26\u4e32\u683c\u5f0f\u6b63\u786e\uff0c\u8f6c\u6362\u53c2\u6570\u6b63\u786e\u3002<\/li>\n<\/ul>\n<p><strong>4. \u6392\u67e5\u6570\u636e\u635f\u574f\uff1a<\/strong><\/p>\n<ul>\n<li>\u68c0\u67e5\u6570\u636e\u6e90\u662f\u5426\u5b58\u5728\u6570\u636e\u635f\u574f\u6216\u4e0d\u4e00\u81f4\u3002\u8003\u8651\u4f7f\u7528\u6570\u636e\u4fee\u590d\u5de5\u5177\u6216\u4e0e\u6570\u636e\u6240\u6709\u8005\u8054\u7cfb\u4ee5\u786e\u8ba4\u6570\u636e\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<p><strong>5. \u5176\u4ed6\u53ef\u80fd\u7684\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<ul>\n<li>\u68c0\u67e5\u6570\u636e\u5e93\u4f1a\u8bdd\u8bbe\u7f6e\uff0c\u786e\u4fdd NLS_NUMERIC_CHARACTERS \u53c2\u6570\u6b63\u786e\u914d\u7f6e\u4e3a\u5c0f\u6570\u70b9\u548c\u5343\u4f4d\u5206\u9694\u7b26\u3002<\/li>\n<li>\u5c1d\u8bd5\u5173\u95ed\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u9a8c\u8bc1\uff0c\u4ee5\u5141\u8bb8\u6682\u65f6\u63d2\u5165\u65e0\u6548\u6570\u636e\u3002<\/li>\n<li>\u5728\u6570\u636e\u5e93\u4e2d\u542f\u7528\u6570\u636e\u9a8c\u8bc1\u65e5\u5fd7\u8bb0\u5f55\u4ee5\u6355\u83b7\u65e0\u6548\u6570\u5b57\u9519\u8bef\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u65e0\u6548\u6570\u5b57\u5982\u4f55\u6392\u67e5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>oracle \u65e0\u6548\u6570\u5b57\u9519\u8bef\u53ef\u80fd\u7531\u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\u3001\u6570\u5b57\u6ea2\u51fa\u3001\u6570\u636e\u8f6c\u6362\u9519\u8bef\u6216\u6570\u636e\u635f\u574f\u5f15\u8d77\u3002\u6392\u67e5\u6b65\u9aa4\u5305\u62ec\u68c0\u67e5\u6570\u636e\u7c7b\u578b\u3001\u68c0\u6d4b\u6570\u5b57\u6ea2\u51fa\u3001\u68c0\u67e5\u6570\u636e\u8f6c\u6362\u3001\u6392\u67e5\u6570\u636e\u635f\u574f\uff0c\u5e76\u63a2\u7d22\u5176\u4ed6\u53ef\u80fd\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5982\u914d\u7f6e nls_numeric_characters \u53c2\u6570\u548c\u542f\u7528\u6570\u636e\u9a8c\u8bc1\u65e5\u5fd7\u8bb0\u5f55\u3002 Oracle \u65e0\u6548\u6570\u5b57\u6392\u67e5\u6307\u5357 \u95ee\u9898\uff1a Oracle \u4e0a\u51fa\u73b0\u65e0\u6548\u6570\u5b57\u9519\u8bef\uff0c\u5982\u4f55\u6392\u67e5\uff1f \u89e3\u7b54\uff1a \u65e0\u6548\u6570\u5b57\u9519\u8bef\u5728 Oracle \u4e2d\u901a\u5e38\u7531\u4ee5\u4e0b\u539f\u56e0\u5f15\u53d1\uff1a 1. \u6570\u636e\u7c7b\u578b\u4e0d\u5339\u914d\uff1a \u5c1d\u8bd5\u5c06\u975e\u6570\u5b57\u503c\u63d2\u5165\u6570\u5b57\u5b57\u6bb5\uff08\u4f8b\u5982\uff0c\u5c06\u5b57\u7b26\u4e32 &#8220;abc&#8221; \u63d2\u5165 NUMBER \u5b57\u6bb5\uff09\u3002 \u5c1d\u8bd5\u5c06\u6570\u5b57\u503c\u63d2\u5165\u957f\u5ea6\u4e0d\u8db3\u7684\u6570\u5b57\u5b57\u6bb5\uff08\u4f8b\u5982\uff0c\u5c06 1234567890123456789 \u63d2\u5165 NUMBER(6) \u5b57\u6bb5\uff09\u3002 2. \u6570\u5b57\u6ea2\u51fa\uff1a \u5c1d\u8bd5\u5b58\u50a8\u8d85\u51fa\u4e86\u5b57\u6bb5\u5b9a\u4e49\u5141\u8bb8\u8303\u56f4\u7684\u5927\u6570\u5b57\u3002 3. \u6570\u636e\u8f6c\u6362\u9519\u8bef\uff1a \u5c1d\u8bd5\u5c06\u6570\u5b57\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6570\u5b57\u7c7b\u578b\u65f6\u51fa\u73b0\u9519\u8bef\uff08\u4f8b\u5982\uff0c\u4f7f\u7528 TO_NUMBER() \u51fd\u6570\u65f6\uff09\u3002 4. \u6570\u636e\u635f\u574f\uff1a \u6570\u636e\u5b58\u50a8\u6216\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u635f\u574f\uff0c\u5bfc\u81f4\u65e0\u6548\u6570\u5b57\u5b57\u7b26\u5d4c\u5165\u6570\u636e\u4e2d\u3002 \u6392\u67e5\u6b65\u9aa4\uff1a 1. \u68c0\u67e5\u6570\u636e\u7c7b\u578b\uff1a \u786e\u8ba4\u5c1d\u8bd5\u63d2\u5165\u6570\u636e\u7684\u5b57\u6bb5\u662f\u5426\u4e3a\u6570\u5b57\u7c7b\u578b\uff08NUMBER\u3001INTEGER \u7b49\uff09\u3002 \u68c0\u67e5\u5b57\u6bb5\u7684\u957f\u5ea6\u662f\u5426\u8db3\u4ee5\u5bb9\u7eb3\u8981\u63d2\u5165\u7684\u6570\u636e\u3002 2. \u68c0\u67e5\u6570\u5b57\u6ea2\u51fa\uff1a \u786e\u5b9a\u8981\u63d2\u5165\u7684\u6570\u5b57\u662f\u5426\u8d85\u51fa\u4e86\u5b57\u6bb5\u5b9a\u4e49\u7684\u8303\u56f4\u3002\u4f7f\u7528\u6570\u636e\u5b57\u5178\u89c6\u56fe USER_TAB_COLUMNS \u67e5\u8be2\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u548c\u957f\u5ea6\u4fe1\u606f\u3002 3. \u68c0\u67e5\u6570\u636e\u8f6c\u6362\u9519\u8bef\uff1a \u4ed4\u7ec6\u68c0\u67e5 TO_NUMBER() \u6216\u7c7b\u4f3c\u51fd\u6570\u7684\u8bed\u6cd5\u3002\u786e\u4fdd\u6570\u5b57\u5b57\u7b26\u4e32\u683c\u5f0f\u6b63\u786e\uff0c\u8f6c\u6362\u53c2\u6570\u6b63\u786e\u3002 4. \u6392\u67e5\u6570\u636e\u635f\u574f\uff1a \u68c0\u67e5\u6570\u636e\u6e90\u662f\u5426\u5b58\u5728\u6570\u636e\u635f\u574f\u6216\u4e0d\u4e00\u81f4\u3002\u8003\u8651\u4f7f\u7528\u6570\u636e\u4fee\u590d\u5de5\u5177\u6216\u4e0e\u6570\u636e\u6240\u6709\u8005\u8054\u7cfb\u4ee5\u786e\u8ba4\u6570\u636e\u5b8c\u6574\u6027\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-6082","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6082","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=6082"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6082\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}