{"id":6742,"date":"2024-11-14T13:52:47","date_gmt":"2024-11-14T05:52:47","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6742\/"},"modified":"2024-11-14T13:52:47","modified_gmt":"2024-11-14T05:52:47","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-case-%e8%af%ad%e5%8f%a5%e5%90%88%e5%b9%b6%e5%a4%9a%e4%b8%aa-sql-%e6%9f%a5%e8%af%a2%e4%bb%a5%e7%94%9f%e6%88%90%e6%98%93%e4%ba%8e%e9%98%85%e8%af%bb%e7%9a%84%e6%8a%a5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6742\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 CASE \u8bed\u53e5\u5408\u5e76\u591a\u4e2a SQL \u67e5\u8be2\u4ee5\u751f\u6210\u6613\u4e8e\u9605\u8bfb\u7684\u62a5\u544a\uff1f"},"content":{"rendered":"

\"\u5982\u4f55\u4f7f\u7528<\/p>\n

\u5408\u5e76 sql \u67e5\u8be2\u4ee5\u83b7\u53d6\u7528\u4e8e\u62a5\u544a\u7684\u6570\u636e<\/strong><\/p>\n

\u5728 \u6570\u636e\u5e93\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u4ece\u591a\u4e2a\u8868\u6216\u89c6\u56fe\u4e2d\u83b7\u53d6\u6570\u636e\u4ee5\u751f\u6210\u62a5\u544a\u3002\u6709\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5408\u5e76\u591a\u4e2a sql \u67e5\u8be2\u4ee5\u83b7\u53d6\u6240\u9700\u6570\u636e\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u6709\u5982\u4e0b\u4e09\u6761 sql \u67e5\u8be2\uff1a<\/p>\n

select count(1) as flownum from ccform_debit_all where cf_acctime > to_char(sysdate,'yyyy-mm-dd');\nselect count(1) as flownummonth from ccform_debit_all where cf_acctime > to_char(sysdate,'yyyy-mm');\nselect count(1) as flownumtotal from ccform_debit_all where cf_acctime > to_char(sysdate,'yyyy');<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u4e9b\u67e5\u8be2\u5206\u522b\u8fd4\u56de\u4eca\u5929\u3001\u672c\u6708\u548c\u4eca\u5e74\u7684\u6d41\u7a0b\u6570\u91cf\u3002\u4e3a\u4e86\u751f\u6210\u4e00\u4e2a\u62a5\u544a\uff0c\u6211\u4eec\u9700\u8981\u5408\u5e76\u8fd9\u4e9b\u67e5\u8be2\u5e76\u4ee5\u4e00\u79cd\u66f4\u7b80\u6d01\u7684\u65b9\u5f0f\u663e\u793a\u7ed3\u679c\u3002\u4f7f\u7528 case \u8bed\u53e5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u6240\u6709\u4e09\u4e2a\u67e5\u8be2\u5408\u5e76\u5230\u4e00\u4e2a\u67e5\u8be2\u4e2d\uff1a<\/p>\n
select count(case when to_char(cf_acctime, 'yyyy-MM-dd') > to_char(sysdate, 'yyyy-MM-dd') then 1 end) as flowNum,\n       count(case when to_char(cf_acctime, 'yyyy-MM') > to_char(sysdate, 'yyyy-MM') then 1 end)       as flowNumMonth,\n       count(case when to_char(cf_acctime, 'yyyy') > to_char(sysdate, 'yyyy') then 1 end)             as flowNumTotal\nfrom ccform_debit_all<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u4e2a\u67e5\u8be2\u5c06\u8fd4\u56de\u4e09\u4e2a\u5217\uff1aflownum\uff08\u4eca\u5929\u6d41\u7a0b\u6570\u91cf\uff09\u3001flownummonth\uff08\u672c\u6708\u6d41\u7a0b\u6570\u91cf\uff09\u548c flownumtotal\uff08\u4eca\u5e74\u6d41\u7a0b\u6570\u91cf\uff09\u3002\u7ed3\u679c\u4ee5\u7b80\u6d01\u6613\u4e8e\u9605\u8bfb\u7684\u683c\u5f0f\u663e\u793a\uff0c\u975e\u5e38\u9002\u5408\u751f\u6210\u62a5\u544a\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528 CASE \u8bed\u53e5\u5408\u5e76\u591a\u4e2a SQL \u67e5\u8be2\u4ee5\u751f\u6210\u6613\u4e8e\u9605\u8bfb\u7684\u62a5\u544a\uff1f\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":"
\u5408\u5e76 sql \u67e5\u8be2\u4ee5\u83b7\u53d6\u7528\u4e8e\u62a5\u544a\u7684\u6570\u636e \u5728 \u6570\u636e\u5e93\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u4ece\u591a\u4e2a\u8868\u6216\u89c6\u56fe\u4e2d\u83b7\u53d6\u6570\u636e\u4ee5\u751f\u6210\u62a5\u544a\u3002\u6709\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5408\u5e76\u591a\u4e2a sql \u67e5\u8be2\u4ee5\u83b7\u53d6\u6240\u9700\u6570\u636e\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u80fd\u6709\u5982\u4e0b\u4e09\u6761 sql \u67e5\u8be2\uff1a select count(1) as flownum from ccform_debit_all where cf_acctime > to_char(sysdate,’yyyy-mm-dd’); select count(1) as flownummonth from ccform_debit_all where cf_acctime > to_char(sysdate,’yyyy-mm’); select count(1) as flownumtotal from ccform_debit_all where cf_acctime > to_char(sysdate,’yyyy’); \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4e9b\u67e5\u8be2\u5206\u522b\u8fd4\u56de\u4eca\u5929\u3001\u672c\u6708\u548c\u4eca\u5e74\u7684\u6d41\u7a0b\u6570\u91cf\u3002\u4e3a\u4e86\u751f\u6210\u4e00\u4e2a\u62a5\u544a\uff0c\u6211\u4eec\u9700\u8981\u5408\u5e76\u8fd9\u4e9b\u67e5\u8be2\u5e76\u4ee5\u4e00\u79cd\u66f4\u7b80\u6d01\u7684\u65b9\u5f0f\u663e\u793a\u7ed3\u679c\u3002\u4f7f\u7528 case \u8bed\u53e5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u6240\u6709\u4e09\u4e2a\u67e5\u8be2\u5408\u5e76\u5230\u4e00\u4e2a\u67e5\u8be2\u4e2d\uff1a select count(case when to_char(cf_acctime, ‘yyyy-MM-dd’) > to_char(sysdate, ‘yyyy-MM-dd’) then 1 end) as […]<\/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-6742","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6742","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=6742"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6742\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}