{"id":659,"date":"2009-03-26T23:06:34","date_gmt":"2009-03-26T14:06:34","guid":{"rendered":"http:\/\/gigasmegas.com\/?p=659"},"modified":"2009-03-30T17:28:16","modified_gmt":"2009-03-30T08:28:16","slug":"%e7%ac%ac2%e5%9b%9e-sql-server-select%e6%96%87%e3%81%a7-%e6%9d%a1%e4%bb%b6%e5%88%86%e5%b2%90-case%e6%96%87%e3%81%ae%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"http:\/\/gigasmegas.com\/?p=659","title":{"rendered":"\u7b2c2\u56de SQL Server Select\u6587\u3067 \u6761\u4ef6\u5206\u5c90 case\u6587\u306e\u4f7f\u7528"},"content":{"rendered":"<p><a onclick=\"javascript:pageTracker._trackPageview('\/outgoing\/rokuz.com\/?p=659');\"  href=\"http:\/\/rokuz.com\/?p=659\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/rokuz.com\/wp-content\/uploads\/2009\/03\/snag-0064-400x287.png\" alt=\"SQL Server 2008 \u3067CASE\u6587\u306e\u4f7f\u7528\u65b9\u6cd5\" title=\"SQL Server 2008 \u3067CASE\u6587\u306e\u4f7f\u7528\u65b9\u6cd5\" width=\"400\" height=\"287\" class=\"alignnone size-medium wp-image-668\" srcset=\"http:\/\/gigasmegas.com\/wp-content\/uploads\/2009\/03\/snag-0064-400x287.png 400w, http:\/\/gigasmegas.com\/wp-content\/uploads\/2009\/03\/snag-0064.png 494w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<address>photo by <a onclick=\"javascript:pageTracker._trackPageview('\/outgoing\/www.flickr.com\/photos\/janed\/');\"  href=\"http:\/\/www.flickr.com\/photos\/janed\/\">Jane Dallaway<\/a><\/address>\n<p>CASE\u6587\u306e\u610f\u5473\u5408\u3044\u306fVB\u3067\u8a00\u3046\u3068\u3053\u308d\u306e\u3001Select\u6587\u3001C\u3060\u3068Switch\u6587\u306b\u4f3c\u3066\u3044\u308b\u611f\u3058\u3067\u3092\u53d7\u3051\u307e\u3059\u3002<br \/>\nCASE\u6587\u306fSQL Server Compact\u3067\u3082\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>SQL Server Select\u6587\u3067 \u6761\u4ef6\u5206\u5c90 case\u6587\u3092\u4f7f\u7528\u3059\u308b\u969b\u3001\u7528\u6cd5\u306f\u4e00\u3064\u3060\u3051\u3067\u306f\u306a\u304f\u3001<\/p>\n<ul>\n<li>\u5358\u7d14CASE \u95a2\u6570 &#8211; 1 \u3064\u306e\u5f0f\u3092\u4e00\u9023\u306e\u5358\u7d14\u5f0f\u3068\u6bd4\u8f03\u3057\u3066\u7d50\u679c\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li>\u691c\u7d22CASE \u95a2\u6570 &#8211; \u4e00\u9023\u306e\u8ad6\u7406\u5f0f\u3092\u8a55\u4fa1\u3057\u3066\u7d50\u679c\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3068\u30012\u7a2e\u985e\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u308c\u3067\u306f\u3001\u3044\u307e\u3044\u3061\u306a\u3093\u306e\u3053\u3063\u3061\u3083\u30d4\u30f3\u3068\u304d\u307e\u305b\u3093\u3088\u306d\u3002<\/p>\n<p><!--more--><\/p>\n<h4>\u5358\u7d14CASE \u95a2\u6570<\/h4>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nCASE input_expression\r\nWHEN when_expression THEN result_expression [ ...n ]\r\n[ ELSE else_result_expression ]\r\nEND\r\n<\/pre>\n<h5>\u5f15\u6570<\/h5>\n<p>input_expression\u2026\u2026A<\/p>\n<ul>\n<li>\n\u5358\u7d14 CASE \u5f62\u5f0f\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306b\u8a55\u4fa1\u3055\u308c\u308b\u5f0f\u3002input_expression \u306f\u3001\u6bd4\u8f03\u5143\u306e\u5024\u3092\u3044\u308c\u307e\u3059\u3002\n<\/li>\n<\/ul>\n<p>WHEN when_expression<\/p>\n<ul>\n<li>\n\u5358\u7d14 CASE \u5f62\u5f0f\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306b input_expression \u3068\u6bd4\u8f03\u3055\u308c\u308b\u5358\u7d14\u5f0f\u3002<br \/>\nwhen_expression \u306b\u6bd4\u8f03\u5bfe\u8c61\u306e\u5024\u3092\u3044\u308c\u307e\u3059\u3002\n<\/li>\n<\/ul>\n<p>THEN result_expression<\/p>\n<ul>\n<li>\ninput_expression = when_expression \u304c TRUE \u306b\u306a\u3063\u305f\u5834\u5408\u3001\u5b9f\u884c\u3055\u308c\u308b\u5f0f\u3092\u5165\u308c\u307e\u3059\u3002<br \/>\n\u3053\u3053\u3067TRUE\u3068\u306a\u308a\u5b9f\u884c\u3055\u308c\u305f\u5834\u5408\u3001\u6b21\u306eWHEN\u53e5\u3001ELSE\u53e5\u306b\u5236\u5fa1\u306f\u6e21\u308a\u307e\u305b\u3093\u3002\u5236\u5fa1\u306f\u629c\u3051\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br \/>\nVB\u306a\u3089\u3070\u3001Exit\u3067\u629c\u3051\u3061\u3083\u3046\u3063\u3066\u611f\u3058\u3067\u3057\u3087\u3046\u304b\u3002\n<\/li>\n<\/ul>\n<p>ELSE else_result_expression<\/p>\n<ul>\n<li>\nWHEN\u53e5\u3068\u306e\u6bd4\u8f03\u3067\u3069\u308c\u306b\u3082\u3042\u3066\u306f\u307e\u3089\u306a\u3044\u6642\u306b\u3001\u5b9f\u884c\u3055\u308c\u308b\u90e8\u5206\u3067\u3059 \u3002<br \/>\nELSE\u53e5\u3092\u7701\u7565\u3057\u3001WHEN\u53e5\u3068\u306e\u6bd4\u8f03\u3067\u3069\u308c\u306b\u3082\u3042\u3066\u306f\u307e\u3089\u306a\u3044\u5834\u5408\u3001CASE \u306f NULL \u3092\u8fd4\u3057\u307e\u3059\u3002\n<\/li>\n<\/ul>\n<h5>\u5358\u7d14CASE\u5f0f\u306e\u6d41\u308c<\/h5>\n<ul>\n<li>\u5b9f\u884c\u3067\u304d\u308b\u306e\u306f\u3001\u7b49\u3057\u3044\u304b\u3069\u3046\u304b\u306e\u771f\u507d\u30c1\u30a7\u30c3\u30af\u3060\u3051\u3002\uff08\u3053\u306e\u70b9\u304b\u3089\u5358\u7d14CASE\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002\uff09<\/li>\n<li>WHEN \u53e5\u306e\u5024\u304c\u3001input_expression \u306b\u306b\u5bfe\u3057\u3066TRUE\u306a\u306e\u304b\u30c1\u30a7\u30c3\u30af<\/li>\n<li>TRUE \u3068\u8a55\u4fa1\u3055\u308c\u305f\u5834\u5408\u3001\u8a72\u5f53WHEN\u53e5 \u306e THEN\u53e5\u4ee5\u4e0b\u306e\u5f0f\u306e\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002<\/li>\n<li>ELSE\u53e5\u3092\u8a2d\u5b9a\u3057\u305f\u5834\u5408\u3001WHEN\u53e5\u3068\u306e\u6bd4\u8f03\u3067\u3069\u308c\u306b\u3082\u3042\u3066\u306f\u307e\u3089\u306a\u3044\u6642\u306b\u3001ELSE\u53e5\u4ee5\u4e0b\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<br \/>\nELSE\u53e5\u3092\u7701\u7565\u3057\u3001WHEN\u53e5\u3068\u306e\u6bd4\u8f03\u3067\u3069\u308c\u306b\u3082\u3042\u3066\u306f\u307e\u3089\u306a\u3044\u5834\u5408\u3001CASE \u306f NULL \u3092\u8fd4\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h4>\u691c\u7d22CASE \u95a2\u6570<\/h4>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">\r\nCASE\r\n     WHEN Boolean_expression THEN result_expression [ ...n ] \r\n     [ ELSE else_result_expression ] \r\nEND\r\n<\/pre>\n<h5>\u5f15\u6570<\/h5>\n<p>WHEN Boolean_expression<\/p>\n<ul>\n<li>\n\u691c\u7d22 CASE \u5f62\u5f0f\u3067\u8a55\u4fa1\u3059\u308b\u30d6\u30fc\u30eb\u5f0f\u3067\u3059\u3002\n<\/li>\n<\/ul>\n<p>THEN result_expression<\/p>\n<ul>\n<li>\ninput_expression = when_expression \u304c TRUE \u306b\u306a\u3063\u305f\u5834\u5408\u3001\u5b9f\u884c\u3055\u308c\u308b\u5f0f\u3092\u5165\u308c\u307e\u3059\u3002<br \/>\n\u3053\u3053\u3067TRUE\u3068\u306a\u308a\u5b9f\u884c\u3055\u308c\u305f\u5834\u5408\u3001\u6b21\u306eWHEN\u53e5\u3001ELSE\u53e5\u306b\u5236\u5fa1\u306f\u6e21\u308a\u307e\u305b\u3093\u3002\u5236\u5fa1\u306f\u629c\u3051\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br \/>\nVB\u306a\u3089\u3070\u3001Exit\u3067\u629c\u3051\u3061\u3083\u3046\u3063\u3066\u611f\u3058\u3067\u3057\u3087\u3046\u304b\u3002\n<\/li>\n<\/ul>\n<p>ELSE else_result_expression<\/p>\n<ul>\n<li>\nWHEN\u53e5\u3068\u306e\u6bd4\u8f03\u3067\u3069\u308c\u306b\u3082\u3042\u3066\u306f\u307e\u3089\u306a\u3044\u6642\u306b\u3001\u5b9f\u884c\u3055\u308c\u308b\u90e8\u5206\u3067\u3059 \u3002<br \/>\nELSE\u53e5\u3092\u7701\u7565\u3057\u3001WHEN\u53e5\u3068\u306e\u6bd4\u8f03\u3067\u3069\u308c\u306b\u3082\u3042\u3066\u306f\u307e\u3089\u306a\u3044\u5834\u5408\u3001CASE \u306f NULL \u3092\u8fd4\u3057\u307e\u3059\u3002\n<\/li>\n<\/ul>\n<h5>\u691c\u7d22CASE\u5f0f\u306e\u6d41\u308c<\/h5>\n<ul>\n<li>\u5404 WHEN \u53e5\u306e Boolean_expression \u3092\u6307\u5b9a\u306e\u9806\u5e8f\u3067\u8a55\u4fa1\u3002<\/li>\n<li>TRUE \u3068\u8a55\u4fa1\u3055\u308c\u305f\u6700\u521d\u306e WHEN\u53e5 \u306e THEN\u53e5\u4ee5\u4e0b\u306e\u5f0f\u306e\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002<\/li>\n<li>ELSE\u53e5\u3092\u8a2d\u5b9a\u3057\u305f\u5834\u5408\u3001WHEN\u53e5\u3068\u306e\u6bd4\u8f03\u3067\u3069\u308c\u306b\u3082\u3042\u3066\u306f\u307e\u3089\u306a\u3044\u6642\u306b\u3001ELSE\u53e5\u4ee5\u4e0b\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<br \/>\nELSE\u53e5\u3092\u7701\u7565\u3057\u3001WHEN\u53e5\u3068\u306e\u6bd4\u8f03\u3067\u3069\u308c\u306b\u3082\u3042\u3066\u306f\u307e\u3089\u306a\u3044\u5834\u5408\u3001CASE \u306f NULL \u3092\u8fd4\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h4>\u4f7f\u7528\u7528\u9014<\/h4>\n<p>CASE\u5f0f\u306e\u3001\u69cb\u6587\u3068\u3057\u3066\u306f\u3001\u5358\u7d14\u3001\u691c\u7d22\u306e2\u7a2e\u985e\u3068\u306a\u308a\u307e\u3059\u3002<br \/>\n\u4f7f\u7528\u7528\u9014\u3068\u3057\u3066\u3001\u4e0b\u8a18\u306e\u3082\u306e\u304c\u3042\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>SELECT \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u5358\u7d14 CASE \u5f0f\u3068\u5171\u306b\u4f7f\u7528\u3059\u308b<\/li>\n<li>SELECT \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u691c\u7d22 CASE \u5f0f\u3068\u5171\u306b\u4f7f\u7528\u3059\u308b<\/li>\n<li>Microsoft Access \u3067\u4f7f\u7528\u3055\u308c\u308b IIf \u95a2\u6570\u3092 CASE \u3067\u7f6e\u304d\u63db\u3048\u308b<\/li>\n<li>ORDER BY \u53e5\u3067 CASE \u3092\u4f7f\u7528\u3059\u308b<\/li>\n<li>UPDATE \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3067 CASE \u3092\u4f7f\u7528\u3059\u308b<\/li>\n<li>SET \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3067 CASE \u3092\u4f7f\u7528\u3059\u308b<\/li>\n<li> HAVING \u53e5\u3067 CASE \u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/ul>\n<p>\u4eca\u56de\u306e\u30a8\u30f3\u30c8\u30ea\u30fc\u306f\u3001\u3053\u3053\u307e\u3067\u3067\u3059\u3002<br \/>\n\u6b21\u56de\u3001\u4f7f\u7528\u7528\u9014\u306b\u3064\u3044\u3066\u3001\u30a8\u30f3\u30c8\u30ea\u30fc\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u3053\u306eCASE\u6587\u3001\u4f7f\u7528\u65b9\u6cd5\u306b\u5bfe\u3059\u308b\u6982\u5ff5\u3084\u611f\u899a\u3092\u899a\u3048\u308c\u3070\u3051\u3063\u3053\u3046\u3001\u4fbf\u5229\u305d\u3046\u3067\u3059\u306d\u3002<\/p>\n<h4>\u95a2\u9023\u30ea\u30f3\u30af<\/h4>\n<p><a onclick=\"javascript:pageTracker._trackPageview('\/outgoing\/msdn.microsoft.com\/ja-jp\/library\/ms181765.aspx');\"  href=\"http:\/\/msdn.microsoft.com\/ja-jp\/library\/ms181765.aspx\">MSDN &#8211; SQL Server 2008 \u30aa\u30f3\u30e9\u30a4\u30f3 \u30d6\u30c3\u30af CASE (Transact-SQL)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>photo by Jane Dallaway CASE\u6587\u306e\u610f\u5473\u5408\u3044\u306fVB\u3067\u8a00\u3046\u3068\u3053\u308d\u306e\u3001Select\u6587\u3001C\u3060\u3068Switch\u6587\u306b\u4f3c\u3066\u3044\u308b\u611f\u3058\u3067\u3092\u53d7\u3051\u307e\u3059\u3002 CASE\u6587\u306fSQL Server Compact\u3067\u3082\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u4f7f [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,32],"tags":[291,250],"class_list":["post-659","post","type-post","status-publish","format-standard","hentry","category-sqlserver","category-database","tag-case","tag-sql"],"_links":{"self":[{"href":"http:\/\/gigasmegas.com\/index.php?rest_route=\/wp\/v2\/posts\/659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/gigasmegas.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/gigasmegas.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/gigasmegas.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/gigasmegas.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=659"}],"version-history":[{"count":13,"href":"http:\/\/gigasmegas.com\/index.php?rest_route=\/wp\/v2\/posts\/659\/revisions"}],"predecessor-version":[{"id":804,"href":"http:\/\/gigasmegas.com\/index.php?rest_route=\/wp\/v2\/posts\/659\/revisions\/804"}],"wp:attachment":[{"href":"http:\/\/gigasmegas.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/gigasmegas.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=659"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/gigasmegas.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}