{"id":6107,"date":"2024-11-14T14:34:18","date_gmt":"2024-11-14T06:34:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6107\/"},"modified":"2024-11-14T14:34:18","modified_gmt":"2024-11-14T06:34:18","slug":"oracle%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e8%bd%ac%e4%b9%89%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6107\/","title":{"rendered":"oracle\u5982\u4f55\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26"},"content":{"rendered":"<blockquote><p>\n  oracle \u4e2d\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26 () \u6765\u8868\u793a\u7279\u6b8a\u5b57\u7b26\u6216\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u3002\u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49\u5305\u62ec\uff1a\u5355\u5f15\u53f7 (&#8216;), \u53cc\u5f15\u53f7 (&#8220;), \u53cd\u659c\u6760 ()\uff1b\u64cd\u4f5c\u7b26\u8f6c\u4e49\u5305\u62ec\uff1a\u767e\u5206\u53f7 (%), \u4e0b\u5212\u7ebf (_), \u5e3d\u53f7 (^), \u5706\u53f7 (|)\u3002\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\u65f6\u9700\u6210\u5bf9\u4f7f\u7528\uff0c\u4e14\u5728\u7279\u6b8a\u5b57\u7b26\u524d\u6dfb\u52a0\u7a7a\u683c\u53ef\u63d0\u9ad8\u53ef\u8bfb\u6027\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/12\/2024061223361989588.jpg\" class=\"aligncenter\" title=\"oracle\u5982\u4f55\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\u63d2\u56fe\" alt=\"oracle\u5982\u4f55\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\u63d2\u56fe\" \/><\/p>\n<p><strong>Oracle \u4e2d\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26<\/strong><\/p>\n<p>Oracle \u4e2d\u7684\u8f6c\u4e49\u5b57\u7b26\u7528\u4e8e\u8868\u793a\u7279\u6b8a\u5b57\u7b26\u6216\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u3002\u4f7f\u7528\u8f6c\u53cd\u659c\u6760 () \u4f5c\u4e3a\u8f6c\u4e49\u5b57\u7b26\u3002<\/p>\n<p><strong>\u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49<\/strong><\/p>\n<ul>\n<li>\u5355\u5f15\u53f7 (&#8216;)\uff1a&#8217;<\/li>\n<li>\u53cc\u5f15\u53f7 (&#8220;)\uff1a&#8221;<\/li>\n<li>\u53cd\u659c\u6760 ()\uff1a\\<\/li>\n<\/ul>\n<p><strong>\u64cd\u4f5c\u7b26\u8f6c\u4e49<\/strong><\/p>\n<ul>\n<li>\u767e\u5206\u53f7 (%)\uff1a%<\/li>\n<li>\u4e0b\u5212\u7ebf (_)\uff1a_<\/li>\n<li>\u5e3d\u53f7 (^)\uff1a^<\/li>\n<li>\u5706\u53f7 (|)\uff1a|<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<pre>-- \u8f6c\u4e49\u5355\u5f15\u53f7\nSELECT 'Don''t do it!' FROM dual;\n\n-- \u8f6c\u4e49\u53cd\u659c\u6760\nSELECT 'This is a \newline' FROM dual;\n\n-- \u8f6c\u4e49\u767e\u5206\u53f7\nSELECT '%' FROM dual;\n\n-- \u8f6c\u4e49\u4e0b\u5212\u7ebf\nSELECT 'user_name' FROM dual;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u5728\u5b57\u7b26\u4e32\u4e2d\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\u65f6\uff0c\u8bf7\u52a1\u5fc5\u6210\u5bf9\u4f7f\u7528\u3002<\/li>\n<li>\u5982\u679c\u60a8\u8981\u8f6c\u4e49\u5b57\u7b26\u4e32\u4e2d\u7684\u8f6c\u4e49\u5b57\u7b26\uff0c\u8bf7\u4f7f\u7528\u4e24\u4e2a\u53cd\u659c\u6760\u3002<\/li>\n<li>\u67d0\u4e9b\u64cd\u4f5c\u7b26\uff08\u4f8b\u5982 LIKE \u548c INSTR\uff09\u9700\u8981\u8f6c\u4e49\u7279\u6b8a\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<p><strong>\u63d0\u793a<\/strong><\/p>\n<ul>\n<li>\u4e3a\u4e86\u63d0\u9ad8\u53ef\u8bfb\u6027\uff0c\u8bf7\u5728\u7279\u6b8a\u5b57\u7b26\u524d\u6dfb\u52a0\u7a7a\u683c\u3002<\/li>\n<li>\u8003\u8651\u4f7f\u7528\u53c2\u6570\u5316\u67e5\u8be2\u4ee3\u66ff\u8f6c\u4e49\u5b57\u7b26\uff0c\u4ee5\u63d0\u9ad8\u5b89\u5168\u6027\u5e76\u9632\u6b62 SQL \u6ce8\u5165\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\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 \u4e2d\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26 () \u6765\u8868\u793a\u7279\u6b8a\u5b57\u7b26\u6216\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u3002\u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49\u5305\u62ec\uff1a\u5355\u5f15\u53f7 (&#8216;), \u53cc\u5f15\u53f7 (&#8220;), \u53cd\u659c\u6760 ()\uff1b\u64cd\u4f5c\u7b26\u8f6c\u4e49\u5305\u62ec\uff1a\u767e\u5206\u53f7 (%), \u4e0b\u5212\u7ebf (_), \u5e3d\u53f7 (^), \u5706\u53f7 (|)\u3002\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\u65f6\u9700\u6210\u5bf9\u4f7f\u7528\uff0c\u4e14\u5728\u7279\u6b8a\u5b57\u7b26\u524d\u6dfb\u52a0\u7a7a\u683c\u53ef\u63d0\u9ad8\u53ef\u8bfb\u6027\u3002 Oracle \u4e2d\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26 Oracle \u4e2d\u7684\u8f6c\u4e49\u5b57\u7b26\u7528\u4e8e\u8868\u793a\u7279\u6b8a\u5b57\u7b26\u6216\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u3002\u4f7f\u7528\u8f6c\u53cd\u659c\u6760 () \u4f5c\u4e3a\u8f6c\u4e49\u5b57\u7b26\u3002 \u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49 \u5355\u5f15\u53f7 (&#8216;)\uff1a&#8217; \u53cc\u5f15\u53f7 (&#8220;)\uff1a&#8221; \u53cd\u659c\u6760 ()\uff1a\\ \u64cd\u4f5c\u7b26\u8f6c\u4e49 \u767e\u5206\u53f7 (%)\uff1a% \u4e0b\u5212\u7ebf (_)\uff1a_ \u5e3d\u53f7 (^)\uff1a^ \u5706\u53f7 (|)\uff1a| \u793a\u4f8b &#8212; \u8f6c\u4e49\u5355\u5f15\u53f7 SELECT &#8216;Don&#8221;t do it!&#8217; FROM dual; &#8212; \u8f6c\u4e49\u53cd\u659c\u6760 SELECT &#8216;This is a ewline&#8217; FROM [&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-6107","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6107","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=6107"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6107\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}