{"id":5185,"date":"2024-11-14T10:22:29","date_gmt":"2024-11-14T02:22:29","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5185\/"},"modified":"2024-11-14T10:22:29","modified_gmt":"2024-11-14T02:22:29","slug":"sql%e4%b8%adreplace%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5185\/","title":{"rendered":"sql\u4e2dreplace\u7528\u6cd5"},"content":{"rendered":"

\n \u5728 sql \u4e2d\uff0creplace \u51fd\u6570\u7528\u4e8e\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u6587\u672c\u3002\u5b83\u63a5\u6536\u4e09\u4e2a\u53c2\u6570\uff1a\u8981\u66ff\u6362\u7684\u5b57\u7b26\u4e32\u3001\u8981\u67e5\u627e\u7684\u6587\u672c\u548c\u8981\u66ff\u6362\u7684\u6587\u672c\u3002\u6b64\u51fd\u6570\u5c06 string \u4e2d\u6240\u6709\u4e0e old_text \u5339\u914d\u7684\u6587\u672c\u66ff\u6362\u4e3a new_text\u3002\n<\/p><\/blockquote>\n

\"sql\u4e2dreplace\u7528\u6cd5\u63d2\u56fe\"<\/p>\n

REPLACE \u51fd\u6570\u5728 SQL \u4e2d\u7684\u7528\u6cd5<\/strong><\/p>\n

REPLACE \u51fd\u6570\u5728 SQL \u4e2d\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u6587\u672c\u66ff\u6362\u4e3a\u65b0\u6587\u672c\u3002\u5176\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

REPLACE(string, old_text, new_text)<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  •  string<\/strong> \u662f\u8981\u66ff\u6362\u6587\u672c\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n
  •  old_text<\/strong> \u662f\u8981\u88ab\u66ff\u6362\u7684\u6587\u672c\u3002<\/li>\n
  •  new_text<\/strong> \u662f\u66ff\u6362\u540e\u7684\u65b0\u6587\u672c\u3002<\/li>\n<\/ul>\n
    REPLACE \u51fd\u6570\u4f1a\u5c06 string \u4e2d\u6240\u6709\u4e0e old_text \u5339\u914d\u7684\u6587\u672c\u66ff\u6362\u4e3a new_text\u3002<\/p>\n
    \u7528\u6cd5\u793a\u4f8b<\/strong><\/p>\n
    \u66ff\u6362\u5355\u4e2a\u5b57\u7b26\u6216\u5b50\u5b57\u7b26\u4e32<\/strong><\/p>\n
    SELECT REPLACE('Hello World', 'o', '*');<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8f93\u51fa\uff1a<\/p>\n
    H*ll* W*rld<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u66ff\u6362\u591a\u4e2a\u5339\u914d\u9879<\/strong><\/p>\n
    SELECT REPLACE('This is a test', 'is', 'was');<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8f93\u51fa\uff1a<\/p>\n
    This was a test<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u66ff\u6362\u90e8\u5206\u5339\u914d\u9879<\/strong><\/p>\n
    SELECT REPLACE('University of California', 'California', 'CA');<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8f93\u51fa\uff1a<\/p>\n
    University of CA<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u6ce8\u610f\uff1a<\/strong><\/p>\n
      \n
    • REPLACE \u51fd\u6570\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u3002<\/li>\n
    • \u5982\u679c old_text \u5728 string \u4e2d\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u4f1a\u8fdb\u884c\u4efb\u4f55\u66ff\u6362\u3002<\/li>\n
    • new_text \u53ef\u4ee5\u4e3a\u7a7a\u5b57\u7b26\u4e32\uff0c\u8fd9\u6837\u53ef\u4ee5\u5220\u9664 old_text\u3002<\/li>\n
    • REPLACE \u51fd\u6570\u7684\u8fd4\u56de\u503c\u662f\u66ff\u6362\u540e\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fsql\u4e2dreplace\u7528\u6cd5\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":"
      \u5728 sql \u4e2d\uff0creplace \u51fd\u6570\u7528\u4e8e\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u6587\u672c\u3002\u5b83\u63a5\u6536\u4e09\u4e2a\u53c2\u6570\uff1a\u8981\u66ff\u6362\u7684\u5b57\u7b26\u4e32\u3001\u8981\u67e5\u627e\u7684\u6587\u672c\u548c\u8981\u66ff\u6362\u7684\u6587\u672c\u3002\u6b64\u51fd\u6570\u5c06 string \u4e2d\u6240\u6709\u4e0e old_text \u5339\u914d\u7684\u6587\u672c\u66ff\u6362\u4e3a new_text\u3002 REPLACE \u51fd\u6570\u5728 SQL \u4e2d\u7684\u7528\u6cd5 REPLACE \u51fd\u6570\u5728 SQL \u4e2d\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6307\u5b9a\u6587\u672c\u66ff\u6362\u4e3a\u65b0\u6587\u672c\u3002\u5176\u8bed\u6cd5\u5982\u4e0b\uff1a REPLACE(string, old_text, new_text) \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a string \u662f\u8981\u66ff\u6362\u6587\u672c\u7684\u5b57\u7b26\u4e32\u3002 old_text \u662f\u8981\u88ab\u66ff\u6362\u7684\u6587\u672c\u3002 new_text \u662f\u66ff\u6362\u540e\u7684\u65b0\u6587\u672c\u3002 REPLACE \u51fd\u6570\u4f1a\u5c06 string \u4e2d\u6240\u6709\u4e0e old_text \u5339\u914d\u7684\u6587\u672c\u66ff\u6362\u4e3a new_text\u3002 \u7528\u6cd5\u793a\u4f8b \u66ff\u6362\u5355\u4e2a\u5b57\u7b26\u6216\u5b50\u5b57\u7b26\u4e32 SELECT REPLACE(‘Hello World’, ‘o’, ‘*’); \u767b\u5f55\u540e\u590d\u5236 \u8f93\u51fa\uff1a H*ll* W*rld \u767b\u5f55\u540e\u590d\u5236 \u66ff\u6362\u591a\u4e2a\u5339\u914d\u9879 SELECT REPLACE(‘This is a test’, ‘is’, ‘was’); […]<\/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-5185","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5185","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=5185"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5185\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}