{"id":200838,"date":"2025-05-06T08:51:11","date_gmt":"2025-05-06T00:51:11","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200838\/"},"modified":"2025-05-06T08:51:11","modified_gmt":"2025-05-06T00:51:11","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-exists-%e5%85%b3%e9%94%ae%e5%ad%97%e6%a3%80%e6%9f%a5%e4%b8%a4%e4%b8%aa%e8%a1%a8%e4%b8%ad%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e5%af%b9%e5%ba%94%e7%9a%84%e5%80%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200838\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 EXISTS \u5173\u952e\u5b57\u68c0\u67e5\u4e24\u4e2a\u8868\u4e2d\u662f\u5426\u5b58\u5728\u5bf9\u5e94\u7684\u503c\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 EXISTS \u5173\u952e\u5b57\u68c0\u67e5\u4e24\u4e2a\u8868\u4e2d\u662f\u5426\u5b58\u5728\u5bf9\u5e94\u7684\u503c\uff1f<\/h1>\n<p>\u76ee\u524d\u4e3b\u673a\u5b9d\u8d1d\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241116\/1731758284673888cc3f967.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u4f7f\u7528 exists \u68c0\u67e5\u4e24\u4e2a\u8868\u4e2d\u7684\u5bf9\u5e94\u503c<\/strong><\/p>\n<p>\u8981\u4e86\u89e3\u4e24\u4e2a\u8868\u4e2d\u662f\u5426\u5b58\u5728\u5bf9\u5e94\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528 exists \u5173\u952e\u5b57\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 exists \u68c0\u67e5\u4e3b\u8868\u4e2d\u7684\u503c\u662f\u5426\u51fa\u73b0\u5728\u5b50\u8868\u4e2d\uff1a<\/p>\n<p><strong>\u4e3b\u8868\uff1apnassertbasic_ruku<\/strong><\/p>\n<pre>select pn_code,serialnumber from pnassertbasic_ruku pr left join pnassertruku pu on pr.parent_pnassertruku_id = pu.child_pnassertrukudetails_id \nwhere pn_code is not null and serialnumber is not null and date(pr.create_time) = curdate() and pr.warehouseentrynumber &lt;&gt; 'wed3791f0b'<\/pre>\n<p><strong>\u5b50\u8868\uff1apnassertruku<\/strong><\/p>\n<pre>select pn_code,serialnumber from pnassertbasic_ruku pr left join pnassertruku pu on pr.parent_pnassertruku_id = pu.child_pnassertrukudetails_id \nwhere pu.child_pnassertrukudetails_id is null and pr.warehouseentrynumber = 'wed3791f0b'<\/pre>\n<p><strong>\u67e5\u8be2\u8bed\u53e5\uff1a<\/strong><\/p>\n<pre>select * from (\n    select pn_Code,serialNumber from pnassertbasic_ruku pr left join pnassertruku pu on pr.parent_pnAssertRuku_id = pu.child_pnAssertRukuDetails_id \nwhere pn_Code is not null and serialNumber is not null and DATE(pr.create_time) = CURDATE() and pr.warehouseEntryNumber &lt;&gt; 'WEd3791f0b'\n) as temp1 \nwhere EXISTS (\n    select * from (\n    select pn_Code,serialNumber from pnassertbasic_ruku pr left join pnassertruku pu on pr.parent_pnAssertRuku_id = pu.child_pnAssertRukuDetails_id \nwhere pu.child_pnAssertRukuDetails_id is null and pr.warehouseEntryNumber = 'WEd3791f0b'\n    ) as temp2\n    where temp1.pn_Code = temp2.pn_Code and temp1.serialNumber = temp2.serialNumber \n)<\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528 exists \u5173\u952e\u5b57\uff0c\u6211\u4eec\u53ef\u4ee5\u68c0\u67e5\u5b50\u8868\u4e2d\u662f\u5426\u5b58\u5728\u4e0e\u4e3b\u8868\u4e2d\u5bf9\u5e94\u7684\u503c\u3002\u5982\u679c\u5b58\u5728\uff0c\u5219\u67e5\u8be2\u7ed3\u679c\u5c06\u8fd4\u56de\u5b50\u8868\u4e2d\u7684\u5339\u914d\u8bb0\u5f55\uff1b\u5426\u5219\uff0c\u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u96c6\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u4f7f\u7528 EXISTS \u5173\u952e\u5b57\u68c0\u67e5\u4e24\u4e2a\u8868\u4e2d\u662f\u5426\u5b58\u5728\u5bf9\u5e94\u7684\u503c\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 EXISTS \u5173\u952e\u5b57\u68c0&#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-200838","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200838","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=200838"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200838\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}