{"id":186,"date":"2014-07-11T12:13:21","date_gmt":"2014-07-11T03:13:21","guid":{"rendered":"http:\/\/www.dbsheetclient.jp\/blog\/?p=186"},"modified":"2018-06-27T16:48:29","modified_gmt":"2018-06-27T07:48:29","slug":"select%e3%81%aecase%e5%8f%a5%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/www.dbsheetclient.jp\/blog\/?p=186","title":{"rendered":"SELECT\u306eCASE\u53e5\u306b\u3064\u3044\u3066"},"content":{"rendered":"

IT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u306e\u30b7\u30e5\u30a6\u3067\u3059\u3002<\/p>\n

\"1402143552101\"<\/a><\/p>\n

\u305f\u307e\u306b\u306fIT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u306b\u3064\u3044\u3066\u306e\u60c5\u5831\u3082\u3042\u3063\u305f\u307b\u3046\u304c\u3044\u3044\u304b\u3068\u601d\u3044\u3001IT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u5354\u4f1a\u306eHP\u304b\u3089\u6c17\u3065\u3044\u305f\u70b9\u3092\u5831\u544a\u3057\u307e\u3059\u3002\u7d50\u69cbHP\u3082\u30ea\u30cb\u30e5\u30fc\u30a2\u30eb\u3057\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n

\u305d\u308c\u3067\u30011\u5e74\u4ee5\u4e0a\u524d\u304b\u3089\u30a4\u30ce\u30d9\u30fc\u30b7\u30e7\u30f3\u304c\u5275\u51fa\u3067\u304d\u308b\u6b21\u4e16\u4ee3\u9ad8\u5ea6IT\u4eba\u6750\u306e\u80b2\u6210\u306b\u3064\u3044\u3066\u3001\u72ec\u7acb\u884c\u653f\u6cd5\u4eba\u60c5\u5831\u51e6\u7406\u63a8\u9032\u6a5f\u69cb\uff08\uff29\uff30\uff21\uff09\u3068\u5171\u540c\u3067\u547c\u3073\u304b\u3051\u300c\uff29\uff34\u878d\u5408\u4eba\u6750\u80b2\u6210\u9023\u7d61\u4f1a\u300d\u3092\u7acb\u3061\u4e0a\u3052\u3066\u3044\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u300c\uff29\uff34\u878d\u5408\u4eba\u6750\u300d\u306e\u5177\u4f53\u7684\u306a\u80b2\u6210\u3068\u7d44\u7e54\u306e\u3042\u308a\u65b9\u306b\u3064\u3044\u3066\u306e\u691c\u8a0e\u6210\u679c\u306b\u3064\u3044\u3066\u306e\u6700\u7d42\u5831\u544a\u66f8\u304c\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u3067\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002
http:\/\/www.itc.or.jp\/news\/inv20140325.html<\/a><\/p>\n

\u30a4\u30ce\u30d9\u30fc\u30b7\u30e7\u30f3\u3092\u5275\u51fa\u3067\u304d\u308b\u4eba\u6750\u3092\u3001\u3042\u308b\u30d7\u30ed\u30bb\u30b9\u306b\u5f93\u3046\u3053\u3068\u3067\u52b9\u679c\u7684\u306b\u80b2\u6210\u3067\u304d\u308c\u3070\uff1f\u65e5\u672c\u306e\u5c06\u6765\u306b\u3068\u3063\u3066\u3082\u672c\u5f53\u306b\u5927\u304d\u3044\u3053\u3068\u3067\u3059\u3088\u306d\u3002\u9811\u5f35\u308c\u30cb\u30c3\u30dd\u30f3\uff01<\/p>\n

\uff1c\u672c\u65e5\u306e\u984c\u6750\uff1e
SELECT\u306eCASE\u53e5\u306b\u3064\u3044\u3066<\/strong><\/p>\n

\u4eca\u56de\u306f\u3001\u6700\u8fd1\u30b7\u30b9\u30c6\u30e0\u3092\u4f5c\u308a\u8fbc\u3080\u3068\u304d\u306b\u78ba\u8a8d\u3057\u305f\u5185\u5bb9\u3067\u3001SELECT\u6587\u3067\u8907\u6570\u306e\u6761\u4ef6\u3067\u306e\u305d\u308c\u305e\u308c\u306e\u4ef6\u6570\u306e\u7d50\u679c\u30921\u3064\u306eSQL\u3067\u5b9f\u65bd\u3059\u308b\u969b\u306b\u3001CASE\u53e5\u3092\u5229\u7528\u3057\u305f\u30b1\u30fc\u30b9\u306b\u3064\u3044\u3066\u8a18\u8f09\u3057\u307e\u3059\u3002\uff08ORACLE\u3067\u3059\uff09<\/p>\n

\u4f8b\uff09\u3042\u308b\u30c6\u30fc\u30d6\u30eb(\u53d7\u6ce8\u5b9f\u7e3e\u30c6\u30fc\u30d6\u30eb\u3068\u3057\u307e\u3059)\u306e\u30c7\u30fc\u30bf\u3067\u3001\u3042\u308b\u30d5\u30e9\u30b0(\u5224\u5b9a\u30d5\u30e9\u30b0\u3068\u3057\u307e\u3059)\u306b\u300c1\u300d\u304c\u7acb\u3063\u3066\u3044\u308b\u3082\u306e\u3068\u300c0\u300d\u306e\u3082\u306e\u3001\u53ca\u3073\u5168\u4f53\u306e\u5408\u8a08\u4ef6\u6570\u3092\u62bd\u51fa\u3059\u308b\u3002<\/p>\n

SELECT
\u53d7\u6ce8\u5e74\u6708
, COUNT(CASE \u5224\u5b9a\u30d5\u30e9\u30b0 WHEN ‘1’ THEN 1 ELSE NULL END) AS \u5224\u5b9a\u6709
, COUNT(CASE \u5224\u5b9a\u30d5\u30e9\u30b0 WHEN ‘0’ THEN 1 ELSE NULL END) AS \u5224\u5b9a\u7121
, COUNT(*) \u5408\u8a08\u4ef6\u6570
FROM \u53d7\u6ce8\u5b9f\u7e3e
GROUP BY \u53d7\u6ce8\u5e74\u6708
ORDER BY \u53d7\u6ce8\u5e74\u6708;<\/p>\n

\"oracle_case_1\"<\/a><\/p>\n

\u4ed6\u306e\u65b9\u6cd5\u3068\u3057\u3066\u306f\u3001\u30a4\u30f3\u30e9\u30a4\u30f3\u30d3\u30e5\u30fc\u3092\u4f7f\u7528\u3057\u3066\u4e0b\u8a18\u306e\u3088\u3046\u306b\u884c\u3046\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n

SELECT
\u53d7\u6ce8\u5b9f\u7e3e1.\u5e74\u6708
, \u53d7\u6ce8\u5b9f\u7e3e1.\u4ef6\u6570 \u5224\u5b9a\u6709
, \u53d7\u6ce8\u5b9f\u7e3e2.\u4ef6\u6570 \u5224\u5b9a\u7121
, \u53d7\u6ce8\u5b9f\u7e3e3.\u4ef6\u6570 \u5408\u8a08\u4ef6\u6570
FROM
(SELECT \u53d7\u6ce8\u5e74\u6708, COUNT(*) \u4ef6\u6570 FROM \u53d7\u6ce8\u5b9f\u7e3e
WHERE \u5224\u5b9a\u30d5\u30e9\u30b0 = ‘1’
GROUP BY \u53d7\u6ce8\u5e74\u6708) \u53d7\u6ce8\u5b9f\u7e3e1
, (SELECT \u53d7\u6ce8\u5e74\u6708, COUNT(*) \u4ef6\u6570 FROM \u53d7\u6ce8\u5b9f\u7e3e
WHERE \u5224\u5b9a\u30d5\u30e9\u30b0 = ‘0’
GROUP BY \u53d7\u6ce8\u5e74\u6708) \u53d7\u6ce8\u5b9f\u7e3e2
, (SELECT \u53d7\u6ce8\u5e74\u6708, COUNT(*) \u4ef6\u6570 FROM \u53d7\u6ce8\u5b9f\u7e3e
GROUP BY \u53d7\u6ce8\u5e74\u6708) \u53d7\u6ce8\u5b9f\u7e3e3
WHERE \u53d7\u6ce8\u5b9f\u7e3e1.\u53d7\u6ce8\u5e74\u6708 = \u53d7\u6ce8\u5b9f\u7e3e2.\u53d7\u6ce8\u5e74\u6708
AND \u53d7\u6ce8\u5b9f\u7e3e1.\u53d7\u6ce8\u5e74\u6708 = \u53d7\u6ce8\u5b9f\u7e3e3.\u53d7\u6ce8\u5e74\u6708
ORDER BY \u53d7\u6ce8\u5b9f\u7e3e1.\u53d7\u6ce8\u5e74\u6708;<\/p>\n

\"oracle_case_2\"<\/a><\/p>\n

 <\/p>\n

\u3067\u3082\u3001CASE\u53e5\u3092\u4f7f\u3063\u3066\u62bd\u51fa\u3057\u305f\u307b\u3046\u304c\u7c21\u5358\u3067\u3059\u306d\u3002
CASE\u6587\u306f\u3044\u308d\u3044\u308d\u306a\u3068\u3053\u308d\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u304c\u3001\uff11\u3064\u306e\u4f8b\u3068\u3057\u3066\u3042\u3052\u307e\u3057\u305f\u3002<\/p>\n

\u4eca\u65e5\u306f\u4ee5\u4e0a\u307e\u3067<\/p>\n","protected":false},"excerpt":{"rendered":"

IT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u306e\u30b7\u30e5\u30a6\u3067\u3059\u3002 \u305f\u307e\u306b\u306fIT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u306b\u3064\u3044\u3066\u306e\u60c5\u5831\u3082\u3042\u3063\u305f\u307b\u3046\u304c\u3044\u3044\u304b\u3068\u601d\u3044\u3001IT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u5354\u4f1a\u306eHP\u304b\u3089\u6c17\u3065\u3044\u305f\u70b9\u3092\u5831\u544a\u3057\u307e\u3059\u3002\u7d50\u69cbHP\u3082\u30ea\u30cb\u30e5\u30fc\u30a2\u30eb\u3057\u3066\u3044\u307e\u3059\u306d\u3002 \u305d\u308c\u3067\u30011\u5e74\u4ee5\u4e0a\u524d\u304b\u3089\u30a4 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2}},"categories":[21,9],"tags":[],"class_list":["post-186","post","type-post","status-publish","format-standard","hentry","category-select","category-9"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=186"}],"version-history":[{"count":12,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/186\/revisions"}],"predecessor-version":[{"id":1986,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/186\/revisions\/1986"}],"wp:attachment":[{"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dbsheetclient.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}