{"id":14849,"date":"2021-11-07T11:36:44","date_gmt":"2021-11-07T02:36:44","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=14849"},"modified":"2023-05-27T23:14:25","modified_gmt":"2023-05-27T14:14:25","slug":"%e3%80%90sql%e3%80%91%e3%80%8cunion%e3%80%8d%e3%81%a8%e3%80%8cunion-all%e3%80%8d%e3%81%ae%e4%bd%bf%e3%81%84%e5%88%86%e3%81%91","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=14849","title":{"rendered":"\u3010SQL\u3011\u300c\u96c6\u5408\u6f14\u7b97\u300d\u306b\u3064\u3044\u3066(UNION,EXCEPT,INTERSECT)"},"content":{"rendered":"

\u96c6\u5408\u6f14\u7b97\u3068\u306f\uff1f<\/h2>\n

\u30c6\u30fc\u30d6\u30eb\u540c\u58eb\u306e\u5185\u5bb9\u3092\u3001\u8db3\u3057\u305f\u308a\u5f15\u3044\u305f\u308a\u3059\u308b\u5171\u901a\u90e8\u5206\u3092\u62bd\u51fa\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n

UNION\uff08\u91cd\u8907\u884c\u3092\u524a\u9664\u3059\u308b\u548c\uff09<\/h2>\n

\u7d50\u5408\u7d50\u679c\u3067\u91cd\u8907\u304c\u3042\u3063\u305f\u5834\u5408\u306f\u3001\u91cd\u8907\u3092\u6392\u9664\u3059\u308b\u3002\u30c6\u30fc\u30d6\u30eb\u306e\u5185\u5bb9\u3092\u8db3\u3057\u7b97\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u91cd\u8907\u884c\u306f\u81ea\u52d5\u3067\u524a\u9664<\/strong><\/span>\u3055\u308c\u307e\u3059\u3002<\/p>\n

UNION ALL\uff08\u91cd\u8907\u884c\u3092\u6b8b\u3059\u548c\uff09<\/h2>\n

\u7d50\u5408\u7d50\u679c\u3067\u91cd\u8907\u304c\u3042\u3063\u305f\u5834\u5408\u306f\u3001\u91cd\u8907\u3092\u6392\u9664\u305b\u305a\u5168\u3066\u8868\u793a\u3059\u308b\u3002\u30c6\u30fc\u30d6\u30eb\u306e\u5185\u5bb9\u3092\u8db3\u3057\u7b97\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u91cd\u8907\u884c\u3092\u6b8b\u3057\u307e\u3059\u3002<\/strong><\/span><\/p>\n

UNION\u306b\u6bd4\u3079\u308b\u3068\u7121\u99c4\u306a\u30bd\u30fc\u30c8\u304c\u767a\u751f\u3057\u306a\u3044\u306e\u3067\u3001\u5b8c\u5168\u306b\u6392\u4ed6\u306b\u306a\u3063\u3066\u3044\u308b\u3082\u306e\u540c\u58eb\u3092\u304f\u3063\u3064\u3051\u305f\u3044\u5834\u5408\u306f\u3067\u304d\u308b\u3060\u3051UNION\u3088\u308a\u3082UNION ALL\u3092\u4f7f\u3063\u305f\u65b9\u304c\u826f\u3044\u3002<\/p>\n

INTERSECT(\u30c6\u30fc\u30d6\u30eb\u306e\u5171\u901a\u90e8\u5206\u3092\u9078\u629e\u3059\u308b\u3002\uff09<\/h2>\n

\u5fc5\u305a\uff12\u3064\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3057\u3066\u30ec\u30b3\u30fc\u30c9\u306e<\/strong>\u5171\u901a\u90e8\u5206\u3092\u62bd\u51fa<\/strong><\/span>\u3057\u307e\u3059\u3002\u91cd\u8907\u884c\u306f\u81ea\u52d5\u3067\u524a\u9664<\/strong><\/span>\u3055\u308c\u307e\u3059\u3002\uff08\u6b8b\u3059\u5834\u5408\u306fUNION\u3068\u540c\u3058\u3088\u3046\u306b\u300cALL\u300d<\/strong><\/span>\u3092\u3064\u3051\u307e\u3059\u3002\uff09<\/p>\n

\u306a\u304a\u3001MySQL<\/strong><\/span>\u3067\u306f\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n

EXCEPT(\u5dee\u3092\u6c42\u3081\u308b\u3002)<\/h2>\n

\u30ec\u30b3\u30fc\u30c9\u306e\u5f15\u304d\u7b97\u3092\u6c42\u3081\u307e\u3059\u3002<\/p>\n

\u306a\u304a\u3001Oracle\u3067\u306f\u3001\u300cEXCEPT\u300d<\/strong><\/span>\u3067\u306f\u306a\u304f\u3001\u300cMINUS\u300d<\/strong><\/span>\u3068\u3044\u3046\u6f14\u7b97\u5b50\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n

\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h2>\n

\u30de\u30fc\u30b8\u3055\u308c\u308bSELECT\u6587\u540c\u58eb\u3067\u4f7f\u7528\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u304c\u7570\u306a\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002<\/p>\n

\u3082\u3061\u308d\u3093\u3001FROM\u53e5\u3067\u30c6\u30fc\u30d6\u30eb\u3092\u7d50\u5408\u3059\u308c\u3070CASE\u5f0f\u3067\u3082\u5bfe\u5fdc\u3067\u304d\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u305d\u308c\u306fUNION\u3092\u4f7f\u3048\u3070\u5fc5\u8981\u306e\u306a\u3044\u7d50\u5408\u306b\u306a\u308b\u306e\u3067\u5fae\u5999\u306a\u3068\u3053\u308d\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u5224\u65ad\u57fa\u6e96\u3068\u3057\u3066\u306f\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u3061\u3083\u3093\u3068\u52b9\u3044\u3066\u3044\u308b\u304b\u306b\u306a\u308a\u307e\u3059\u3002UINON\u3092\u4f7f\u3063\u305f\u5834\u5408\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u3061\u3083\u3093\u3068\u52b9\u304f\u306e\u3067\u3042\u308c\u3070\u9078\u629e\u80a2\u3068\u3057\u3066\u826f\u3044\u5f62\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002\uff08\u5177\u4f53\u7684\u306b\u8a00\u3048\u3070\u3001UNION\u3092\u4f7f\u3063\u305f\u5834\u5408\u306b\u3046\u307e\u304f\u7d5e\u308a\u8fbc\u307f\u306e\u5229\u304f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5229\u7528\u3067\u304d\u3066\u3001\u304b\u3064\u975eUNION\u306e\u5834\u5408\u306f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5229\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u3067\u30d5\u30eb\u30c6\u30fc\u30d6\u30eb\u30b9\u30ad\u30e3\u30f3\u304c\u767a\u751f\u3059\u308b\u5834\u5408\u306fUNION\u3092\u4f7f\u3063\u305f\u65b9\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u826f\u304f\u306a\u308a\u307e\u3059\u3002\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u306f\u3001UNION\u306eWHERE\u53e5\u306e\u9078\u629e\u6027\u304c\u3069\u308c\u304f\u3089\u3044\u9ad8\u3044\u304b\u304c\u5927\u4e8b\u3067\u3057\u3087\u3046\u3002\uff09<\/p>\n

UNION\u306e\u554f\u984c\u70b9<\/h2>\n

\u305f\u3060\u3001\u57fa\u672c\u7684\u306bUNION\u306fSELECT\u6587\u30922\u56de\u767a\u884c\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u306a\u306e\u3067\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u3042\u307e\u308a\u3088\u308d\u3057\u304f\u306a\u3044\u30b1\u30fc\u30b9\u3082\u591a\u3044\u3067\u3059\u3002CASE\u5f0f<\/strong><\/span>\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u306a\u3044\u304b\u3069\u3046\u304b\u691c\u8a0e\u3059\u308b\u306e\u304c\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

UNION\u306f\u6587\u306b\u3088\u308b\u5206\u5c90\u3001CASE\u5f0f\u306f\u5f0f\u306b\u3088\u308b\u5206\u5c90\u3067\u3069\u3046\u3057\u3066\u3082\u624b\u7d9a\u578b\u8a00\u8a9e\u306a\u3069\u306e\u901a\u5e38\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u7d4c\u9a13\u304c\u9577\u3044\u65b9\u306fUNION\u3092\u597d\u3093\u3067\u4f7f\u3044\u304c\u3061\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u304c\u3001CASE\u5f0f\u3068\u3044\u3046\u5ba3\u8a00\u578b\u8a00\u8a9e\u3092\u7fd2\u5f97\u3059\u308c\u3070SQL\u4e2d\u7d1a\u8005\u3092\u76ee\u6307\u305b\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u96c6\u5408\u6f14\u7b97\u3068\u306f\uff1f \u30c6\u30fc\u30d6\u30eb\u540c\u58eb\u306e\u5185\u5bb9\u3092\u3001\u8db3\u3057\u305f\u308a\u5f15\u3044\u305f\u308a\u3059\u308b\u5171\u901a\u90e8\u5206\u3092\u62bd\u51fa\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3067\u3059\u3002 UNION\uff08\u91cd\u8907\u884c\u3092\u524a\u9664\u3059\u308b\u548c\uff09 \u7d50\u5408\u7d50\u679c\u3067\u91cd\u8907\u304c\u3042\u3063\u305f\u5834\u5408\u306f\u3001\u91cd\u8907\u3092\u6392\u9664\u3059\u308b\u3002\u30c6\u30fc\u30d6\u30eb\u306e\u5185\u5bb9\u3092\u8db3\u3057\u7b97\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u91cd\u8907\u884c\u306f\u81ea […]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[24],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14849"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14849"}],"version-history":[{"count":10,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14849\/revisions"}],"predecessor-version":[{"id":20581,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14849\/revisions\/20581"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14849"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}