{"id":6173,"date":"2024-11-14T12:25:01","date_gmt":"2024-11-14T04:25:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6173\/"},"modified":"2024-11-14T12:25:01","modified_gmt":"2024-11-14T04:25:01","slug":"mysql%e5%a6%82%e4%bd%95%e5%8e%bb%e6%8e%89%e5%ad%97%e7%ac%a6%e4%b8%b2%e4%b8%ad%e7%9a%84%e7%89%b9%e6%ae%8a%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6173\/","title":{"rendered":"mysql\u5982\u4f55\u53bb\u6389\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26"},"content":{"rendered":"<blockquote><p>\n  \u5982\u4f55\u4ece mysql \u5b57\u7b26\u4e32\u4e2d\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff1f\u4f7f\u7528 regexp_replace() \u51fd\u6570\u5339\u914d\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\u3002\u4f7f\u7528 translate() \u51fd\u6570\u5c06\u7279\u6b8a\u5b57\u7b26\u7ffb\u8bd1\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002\u4f7f\u7528 trim() \u51fd\u6570\u79fb\u9664\u5b57\u7b26\u4e32\u4e24\u7aef\u7684\u7279\u6b8a\u5b57\u7b26\u3002\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5 replace() \u66ff\u6362\u7279\u6b8a\u5b57\u7b26\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/14\/2024061404152738113.jpg\" class=\"aligncenter\" title=\"mysql\u5982\u4f55\u53bb\u6389\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u63d2\u56fe\" alt=\"mysql\u5982\u4f55\u53bb\u6389\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4ece MySQL \u5b57\u7b26\u4e32\u4e2d\u79fb\u9664\u7279\u6b8a\u5b57\u7b26<\/strong><\/p>\n<p>\u5728 MySQL \u4e2d\uff0c\u79fb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\u6216\u5206\u6790\u65f6\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u6267\u884c\u6b64\u64cd\u4f5c\u7684\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 REGEXP_REPLACE() \u51fd\u6570<\/strong><\/p>\n<p>REGEXP_REPLACE() \u51fd\u6570\u5141\u8bb8\u60a8\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u66ff\u6362\u5339\u914d\u7684\u5b50\u5b57\u7b26\u4e32\u3002\u8981\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6a21\u5f0f\uff1a<\/p>\n<pre>REGEXP_REPLACE(string, '[^a-zA-Z0-9 ]', '')<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u6a21\u5f0f\u5c06\u5339\u914d\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\uff0c\u5e76\u5c06\u5176\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002<\/p>\n<p><strong>2. \u4f7f\u7528 TRANSLATE() \u51fd\u6570<\/strong><\/p>\n<p>TRANSLATE() \u51fd\u6570\u5141\u8bb8\u60a8\u5c06\u4e00\u7ec4\u5b57\u7b26\u7ffb\u8bd1\u4e3a\u53e6\u4e00\u7ec4\u5b57\u7b26\u3002\u8981\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6a21\u5f0f\uff1a<\/p>\n<pre>TRANSLATE(string, '[^a-zA-Z0-9 ]', '')<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u6a21\u5f0f\u5c06\u5339\u914d\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\uff0c\u5e76\u5c06\u5176\u7ffb\u8bd1\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002<\/p>\n<p><strong>3. \u4f7f\u7528 TRIM() \u51fd\u6570<\/strong><\/p>\n<p>TRIM() \u51fd\u6570\u53ef\u7528\u4e8e\u4ece\u5b57\u7b26\u4e32\u4e2d\u79fb\u9664\u6307\u5b9a\u5b57\u7b26\u3002\u8981\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6a21\u5f0f\uff1a<\/p>\n<pre>TRIM(BOTH '[^a-zA-Z0-9 ]' FROM string)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u6a21\u5f0f\u5c06\u4ece\u5b57\u7b26\u4e32\u4e24\u7aef\u79fb\u9664\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\u3002<\/p>\n<p><strong>4. \u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5<\/strong><\/p>\n<p>MySQL \u8fd8\u63d0\u4f9b\u4e86\u4e00\u7ec4\u5b57\u7b26\u4e32\u65b9\u6cd5\uff0c\u53ef\u7528\u4e8e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\u3002\u8981\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<pre>string.replace(\/[^a-zA-Z0-9 ]\/g, '')<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u65b9\u6cd5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5339\u914d\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\uff0c\u5e76\u5c06\u5176\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002<\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u67e5\u8be2\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 REGEXP_REPLACE() \u51fd\u6570\u4ece\u5b57\u7b26\u4e32\u4e2d\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff1a<\/p>\n<pre>SELECT REGEXP_REPLACE('This is a sample string!', '[^a-zA-Z0-9 ]', '') AS cleaned_string;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u7ed3\u679c\uff1a<\/p>\n<pre>Thisisasamplestring<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u53bb\u6389\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u6b8a\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>\u5982\u4f55\u4ece mysql \u5b57\u7b26\u4e32\u4e2d\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff1f\u4f7f\u7528 regexp_replace() \u51fd\u6570\u5339\u914d\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\u3002\u4f7f\u7528 translate() \u51fd\u6570\u5c06\u7279\u6b8a\u5b57\u7b26\u7ffb\u8bd1\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002\u4f7f\u7528 trim() \u51fd\u6570\u79fb\u9664\u5b57\u7b26\u4e32\u4e24\u7aef\u7684\u7279\u6b8a\u5b57\u7b26\u3002\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5 replace() \u66ff\u6362\u7279\u6b8a\u5b57\u7b26\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002 \u5982\u4f55\u4ece MySQL \u5b57\u7b26\u4e32\u4e2d\u79fb\u9664\u7279\u6b8a\u5b57\u7b26 \u5728 MySQL \u4e2d\uff0c\u79fb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\u6216\u5206\u6790\u65f6\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u6267\u884c\u6b64\u64cd\u4f5c\u7684\u65b9\u6cd5\uff1a 1. \u4f7f\u7528 REGEXP_REPLACE() \u51fd\u6570 REGEXP_REPLACE() \u51fd\u6570\u5141\u8bb8\u60a8\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u66ff\u6362\u5339\u914d\u7684\u5b50\u5b57\u7b26\u4e32\u3002\u8981\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6a21\u5f0f\uff1a REGEXP_REPLACE(string, &#8216;[^a-zA-Z0-9 ]&#8217;, &#8221;) \u767b\u5f55\u540e\u590d\u5236 \u6b64\u6a21\u5f0f\u5c06\u5339\u914d\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\uff0c\u5e76\u5c06\u5176\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002 2. \u4f7f\u7528 TRANSLATE() \u51fd\u6570 TRANSLATE() \u51fd\u6570\u5141\u8bb8\u60a8\u5c06\u4e00\u7ec4\u5b57\u7b26\u7ffb\u8bd1\u4e3a\u53e6\u4e00\u7ec4\u5b57\u7b26\u3002\u8981\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6a21\u5f0f\uff1a TRANSLATE(string, &#8216;[^a-zA-Z0-9 ]&#8217;, &#8221;) \u767b\u5f55\u540e\u590d\u5236 \u6b64\u6a21\u5f0f\u5c06\u5339\u914d\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\uff0c\u5e76\u5c06\u5176\u7ffb\u8bd1\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002 3. \u4f7f\u7528 TRIM() \u51fd\u6570 TRIM() \u51fd\u6570\u53ef\u7528\u4e8e\u4ece\u5b57\u7b26\u4e32\u4e2d\u79fb\u9664\u6307\u5b9a\u5b57\u7b26\u3002\u8981\u79fb\u9664\u7279\u6b8a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6a21\u5f0f\uff1a TRIM(BOTH &#8216;[^a-zA-Z0-9 ]&#8217; FROM string) \u767b\u5f55\u540e\u590d\u5236 \u6b64\u6a21\u5f0f\u5c06\u4ece\u5b57\u7b26\u4e32\u4e24\u7aef\u79fb\u9664\u6240\u6709\u975e\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u548c\u7a7a\u683c\u3002 4. [&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-6173","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6173","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=6173"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6173\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}