{"id":200712,"date":"2025-05-06T13:16:14","date_gmt":"2025-05-06T05:16:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200712\/"},"modified":"2025-05-06T13:16:14","modified_gmt":"2025-05-06T05:16:14","slug":"mysql-%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b%e6%9b%bf%e6%8d%a2-json-%e5%86%85%e5%ae%b9%e6%97%b6%ef%bc%8c%e4%b8%ba%e4%bb%80%e4%b9%88%e4%bc%9a%e5%87%ba%e7%8e%b0%e5%a4%a7%e5%ad%97%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200712\/","title":{"rendered":"MySQL \u5b58\u50a8\u8fc7\u7a0b\u66ff\u6362 JSON \u5185\u5bb9\u65f6\uff0c\u4e3a\u4ec0\u4e48\u4f1a\u51fa\u73b0\u201c\u5927\u5b57\u6bb5\u4fe1\u606f\u4e0d\u5b58\u5728\u201d\u7684\u9519\u8bef\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u5b58\u50a8\u8fc7\u7a0b\u66ff\u6362 JSON \u5185\u5bb9\u65f6\uff0c\u4e3a\u4ec0\u4e48\u4f1a\u51fa\u73b0\u201c\u5927\u5b57\u6bb5\u4fe1\u606f\u4e0d\u5b58\u5728\u201d\u7684\u9519\u8bef\uff1f<\/h1>\n<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241112\/17313899826732ea1e0dce5.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql\u5b58\u50a8\u8fc7\u7a0b\u66ff\u6362json\u5185\u5bb9\u9047\u5230\u7684\u95ee\u9898<\/strong><\/p>\n<p>\u4e00\u4f4d\u5f00\u53d1\u8005\u5728\u4f7f\u7528mysql\u5b58\u50a8\u8fc7\u7a0b\u65f6\u9047\u5230\u4e86\u95ee\u9898\uff0c\u65e0\u6cd5\u66ff\u6362json\u5185\u5bb9\u5e76\u663e\u793a\u66ff\u6362\u540e\u7684\u6587\u672c\u3002\u95ee\u9898\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>delimiter \/\/\ndrop procedure if exists `replacename`\/\/\ncreate procedure replacename()\n\nbegin \ndeclare c int default 0;\ndeclare r json ;\ndeclare id int default 0;\ndeclare i int default 0;\n\ndeclare result cursor for select id,slider_image from `eb_store_product`;\n\nselect count(*) into c from eb_store_product;\nopen  result;\n\nrepeat \n    set i = i + 1;\n    fetch result into id,r;\n\n    set @t = replace(json_extract(r,'$[0]'),'ceshi','chenggong');\n\nuntil i &amp;gt;= c\nend repeat; \nclose result;\nselect @t;\n\nend\/\/\n\ncall replacename();\/\/\ndelimiter ;<\/pre>\n<p>\u8fd0\u884c\u8be5\u4ee3\u7801\u540e\uff0c\u4f1a\u51fa\u73b0\u4ee5\u4e0b\u9519\u8bef\u63d0\u793a\uff1a<\/p>\n<blockquote><p>\n  \u5927\u5b57\u6bb5\u4fe1\u606f\u4e0d\u5b58\u5728\u3002\n<\/p><\/blockquote>\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n<p>\u95ee\u9898\u51fa\u73b0\u5728\u4ee3\u7801\u4e2d\u7f3a\u5c11\u5bf9eb_store_product\u8868\u4e2dslider_image\u5b57\u6bb5\u7684\u66f4\u65b0\u3002\u4fee\u6539\u540e\u7684\u6b63\u786e\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>DELIMITER \/\/\nDROP PROCEDURE IF EXISTS `replacename`\/\/\nCREATE PROCEDURE replacename()\nBEGIN\n    DECLARE c INT DEFAULT 0;\n    DECLARE r JSON;\n    DECLARE id INT DEFAULT 0;\n    DECLARE i INT DEFAULT 0;\n\n    DECLARE result CURSOR FOR SELECT id, slider_image FROM `eb_store_product`;\n\n    SELECT COUNT(*) INTO c FROM eb_store_product;\n    OPEN result;\n\n    REPEAT\n        SET i = i + 1;\n        FETCH result INTO id, r;\n\n        SET @t = REPLACE(JSON_EXTRACT(r, '$[0]'), 'ceshi', 'chenggong');\n\n        -- \u66f4\u65b0 eb_store_product \u8868\u4e2d\u7684 slider_image \u5b57\u6bb5\n        UPDATE eb_store_product SET slider_image = JSON_REPLACE(r, '$[0]', @t) WHERE id = id;\n\n    UNTIL i &amp;gt;= c\n    END REPEAT;\n\n    CLOSE result;\n    SELECT @t;\nEND\/\/\nDELIMITER ;\n\nCALL replacename();<\/pre>\n<p>\u4fee\u6539\u540e\u7684\u4ee3\u7801\u4e2d\u6dfb\u52a0\u4e86update\u8bed\u53e5\uff0c\u7528\u4e8e\u66f4\u65b0eb_store_product\u8868\u4e2d\u5bf9\u5e94\u884c\u7684slider_image\u5b57\u6bb5\uff0c\u4ece\u800c\u89e3\u51b3\u4e86\u66ff\u6362json\u5185\u5bb9\u540e\u65e0\u6cd5\u663e\u793a\u7684\u95ee\u9898\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aMySQL \u5b58\u50a8\u8fc7\u7a0b\u66ff\u6362 JSON \u5185\u5bb9\u65f6\uff0c\u4e3a\u4ec0\u4e48\u4f1a\u51fa\u73b0\u201c\u5927\u5b57\u6bb5\u4fe1\u606f\u4e0d\u5b58\u5728\u201d\u7684\u9519\u8bef\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6570\u636e\u5e93\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u5b58\u50a8\u8fc7\u7a0b\u66ff\u6362 JSO&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200712","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200712","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200712"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200712\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}