{"id":928,"date":"2021-12-26T09:28:06","date_gmt":"2021-12-26T00:28:06","guid":{"rendered":"https:\/\/beiyan-tool.info\/?p=928"},"modified":"2021-12-26T09:28:06","modified_gmt":"2021-12-26T00:28:06","slug":"access%e3%81%a7case%e3%81%8c%e4%bd%bf%e3%81%88%e3%81%aa%e3%81%84%e3%81%ae%e3%81%a7%e4%bb%a3%e3%82%8f%e3%82%8a%e3%81%abswitch%e3%82%92%e4%bd%bf%e3%81%86%e3%80%82","status":"publish","type":"post","link":"https:\/\/beiyan-tool.info\/?p=928","title":{"rendered":"ACCESS\u3067CASE\u304c\u4f7f\u3048\u306a\u3044\u306e\u3067\u4ee3\u308f\u308a\u306bSWITCH\u3092\u4f7f\u3046\u3002"},"content":{"rendered":"

\u300c\u9054\u4eba\u306b\u5b66\u3076SQL\u5fb9\u5e95\u6307\u5357\u66f8 \u7b2c2\u7248 \u521d\u7d1a\u8005\u3067\u7d42\u308f\u308a\u305f\u304f\u306a\u3044\u3042\u306a\u305f\u3078<\/a>\u300d\u3092\u8aad\u3093\u3067\u5b66\u7fd2\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30b5\u30f3\u30d7\u30eb\u30d5\u30a1\u30a4\u30eb\u306e\u4ee5\u4e0b\u306eSQL\u304c\u3042\u3063\u305f\u306e\u3067\u3001ACCESS\u3092\u4f7f\u3063\u3066\u5b9f\u884c\u3057\u3088\u3046\u3068\u3057\u307e\u3057\u305f\u3002<\/p>\n

SELECT CASE pref_name
\nWHEN ‘\u5fb3\u5cf6’ THEN ‘\u56db\u56fd’
\nWHEN ‘\u9999\u5ddd’ THEN ‘\u56db\u56fd’
\nWHEN ‘\u611b\u5a9b’ THEN ‘\u56db\u56fd’
\nWHEN ‘\u9ad8\u77e5’ THEN ‘\u56db\u56fd’
\nWHEN ‘\u798f\u5ca1’ THEN ‘\u4e5d\u5dde’
\nWHEN ‘\u4f50\u8cc0’ THEN ‘\u4e5d\u5dde’
\nWHEN ‘\u9577\u5d0e’ THEN ‘\u4e5d\u5dde’
\nELSE ‘\u305d\u306e\u4ed6’ END AS district,
\nSUM(population)
\nFROM PopTbl
\nGROUP BY CASE pref_name
\nWHEN ‘\u5fb3\u5cf6’ THEN ‘\u56db\u56fd’
\nWHEN ‘\u9999\u5ddd’ THEN ‘\u56db\u56fd’
\nWHEN ‘\u611b\u5a9b’ THEN ‘\u56db\u56fd’
\nWHEN ‘\u9ad8\u77e5’ THEN ‘\u56db\u56fd’
\nWHEN ‘\u798f\u5ca1’ THEN ‘\u4e5d\u5dde’
\nWHEN ‘\u4f50\u8cc0’ THEN ‘\u4e5d\u5dde’
\nWHEN ‘\u9577\u5d0e’ THEN ‘\u4e5d\u5dde’
\nELSE ‘\u305d\u306e\u4ed6’ END;<\/div>\n

\u6f14\u7b97\u5b50\u304c\u3042\u308a\u307e\u305b\u3093\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n

ACCESS\u3067CASE\u304c\u4f7f\u3048\u306a\u3044\u306e\u3067\u4ee3\u308f\u308a\u306bSWITCH\u3092\u4f7f\u3046\u3057\u304b\u306a\u3044\u3088\u3046\u3067\u3059\u3002
\n\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u63db\u3048\u307e\u3057\u305f\u3002<\/p>\n

SELECT SWITCH(
\npref_name=’\u5fb3\u5cf6’,’\u56db\u56fd’,
\npref_name=’\u9999\u5ddd’,’\u56db\u56fd’,
\npref_name=’\u611b\u5a9b’,’\u56db\u56fd’,
\npref_name=’\u9ad8\u77e5’,’\u56db\u56fd’,
\npref_name=’\u798f\u5ca1’,’\u4e5d\u5dde’,
\npref_name=’\u4f50\u8cc0’,’\u4e5d\u5dde’,
\npref_name=’\u9577\u5d0e’,’\u4e5d\u5dde’,
\nTRUE,’\u305d\u306e\u4ed6’),
\nSUM(population)
\nFROM PopTbl
\nGROUP BY
\nSWITCH(
\npref_name=’\u5fb3\u5cf6’,’\u56db\u56fd’,
\npref_name=’\u9999\u5ddd’,’\u56db\u56fd’,
\npref_name=’\u611b\u5a9b’,’\u56db\u56fd’,
\npref_name=’\u9ad8\u77e5’,’\u56db\u56fd’,
\npref_name=’\u798f\u5ca1’,’\u4e5d\u5dde’,
\npref_name=’\u4f50\u8cc0’,’\u4e5d\u5dde’,
\npref_name=’\u9577\u5d0e’,’\u4e5d\u5dde’,
\nTRUE,’\u305d\u306e\u4ed6’)<\/div>\n

\u5b9f\u884c\u7d50\u679c\u3067\u3059\u3002<\/p>\n

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u300c\u9054\u4eba\u306b\u5b66\u3076SQL\u5fb9\u5e95\u6307\u5357\u66f8 \u7b2c2\u7248 \u521d\u7d1a\u8005\u3067\u7d42\u308f\u308a\u305f\u304f\u306a\u3044\u3042\u306a\u305f\u3078\u300d\u3092\u8aad\u3093\u3067\u5b66\u7fd2\u3057\u3066\u3044\u307e\u3059\u3002 \u30b5\u30f3\u30d7\u30eb\u30d5\u30a1\u30a4\u30eb\u306e\u4ee5\u4e0b\u306eSQL\u304c\u3042\u3063\u305f\u306e\u3067\u3001ACCESS\u3092\u4f7f\u3063\u3066\u5b9f\u884c\u3057\u3088\u3046\u3068\u3057\u307e\u3057\u305f\u3002 SELECT C … <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-928","post","type-post","status-publish","format-standard","hentry","category-tools"],"_links":{"self":[{"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=\/wp\/v2\/posts\/928","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=928"}],"version-history":[{"count":1,"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=\/wp\/v2\/posts\/928\/revisions"}],"predecessor-version":[{"id":930,"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=\/wp\/v2\/posts\/928\/revisions\/930"}],"wp:attachment":[{"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=928"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beiyan-tool.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}