{"id":507,"date":"2026-01-18T13:26:30","date_gmt":"2026-01-18T04:26:30","guid":{"rendered":"https:\/\/se-pg-toolbox.com\/?p=507"},"modified":"2026-01-18T13:26:31","modified_gmt":"2026-01-18T04:26:31","slug":"sql-server%e3%81%a7if%e6%96%87%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6%e6%9d%a1%e4%bb%b6%e5%88%86%e5%b2%90%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%97%e3%81%a6%e3%81%bf%e3%82%8b","status":"publish","type":"post","link":"https:\/\/se-pg-toolbox.com\/?p=507","title":{"rendered":"SQL Server\u3067IF\u6587\u3092\u4f7f\u3063\u3066\u6761\u4ef6\u5206\u5c90\u3092\u5b9f\u88c5\u3057\u3066\u307f\u308b"},"content":{"rendered":"\n<p>\u4eca\u56de\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306eIF\u6587\u3092\u4f7f\u3046\u51e6\u7406\u3092\u3001SQL Server\u3092\u4f7f\u3063\u3066\u5b9f\u88c5\u3057\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<br><br>SQL\u306eIF\u6587\u306fSQL Server\u3084Oracle\u3084MySQL\u306a\u3069\u3001\u4f7f\u7528\u3059\u308bSQL\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u5c11\u3057\u66f8\u304d\u65b9\u304c\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u66f8\u304d\u65b9\u3092\u77e5\u3063\u3066\u304a\u304f\u3068\u30b9\u30c8\u30a2\u30c9\u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u30fc\u3084\u8907\u96d1\u306a\u30af\u30a8\u30ea\u3092\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308b\u6642\u306b\u5f79\u306b\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SQL Server\u306eIF\u6587\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<p>SQL Server\u3067IF\u6587\u3092\u4f7f\u3046\u4f8b\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u30af\u30a8\u30ea\u3092\u8003\u3048\u3066\u307f\u307e\u3059\u3002<br><br><span class=\"marker2\">SQL Server\u3067IF\u3092\u4f7f\u3063\u305f\u30af\u30a8\u30ea\u3092\u66f8\u304f\u5834\u5408\u306f\u3001IF\u306e\u5f8c\u306bTHEN\u306f\u4ed8\u304b\u305a\u3001\u51e6\u7406\u3092BEGIN\u3068END\u3067\u56f2\u307f\u307e\u3059\u3002<\/span><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>DECLARE @a AS int;\nDECLARE @b AS int;\n\nSET @a = 5;\nSET @b = 7;\n\nIF @a % 3 = 1\nBEGIN\n    SELECT @a + @b;\nEND\nELSE IF @a % 3 = 2\nBEGIN\n    SELECT @a * @b;\nEND\nELSE\nBEGIN\n    SELECT @b - @a;\nEND<\/code><\/pre><\/div>\n\n\n\n<p>\u307e\u305a\u3001\u3053\u306e\u30af\u30a8\u30ea\u306f\u4e00\u4f53\u4f55\u3092\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<br><br>\u3053\u306e\u30af\u30a8\u30ea\u306f\u3001@a\u3001@b\u3068\u3044\u3046\u5909\u6570\u3092\u5b9a\u7fa9\u3057\u3066\u3001@a\u306e\u5024\u30923\u3067\u5272\u3063\u305f\u6642\u306b\u3001\u4f59\u308a\u304c\uff11\u3067\u3042\u308c\u3070\u3001@a\u3068@b\u306e\u5024\u306e\u548c\u3092\u6c42\u3081\u308b\u3002<br><br>\u4f59\u308a\u304c2\u3067\u3042\u308c\u3070@a\u3068@b\u306e\u7a4d\u306e\u5024\u3092\u6c42\u3081\u308b\u3002<br><br>\u4f59\u308a\u304c\u306a\u304f\u5272\u308a\u5207\u308c\u308b\u5834\u5408\u306f\u3001@b\u3068@a\u306e\u5dee\u3092\u6c42\u3081\u308b\u3002<br><br>\u305d\u3093\u306a\u51e6\u7406\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<br><br><br>\u3067\u306f\u3001\u5b9f\u969b\u306b\u4e0a\u8a18\u306e\u30af\u30a8\u30ea\u3092\u5b9f\u884c\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"142\" height=\"52\" src=\"https:\/\/se-pg-toolbox.com\/wp-content\/uploads\/2026\/01\/article33_1.png\" alt=\"\" class=\"wp-image-508\" \/><\/figure>\n\n\n\n<p>@a\u306e\u5024\u30923\u3067\u5272\u308b\u3068\u4f59\u308a\u304c2\u306a\u306e\u3067\u3001@a\u3068@b\u306e\u7a4d\u304c\u6c42\u3081\u3089\u308c\u307e\u3057\u305f\u3002<br><br><br>\u6b21\u306b\u3001@a\u306e\u5024\u30924\u306b\u66f8\u304d\u63db\u3048\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\" data-line=\"4\"><code>DECLARE @a AS int;\nDECLARE @b AS int;\n\nSET @a = 4;\nSET @b = 7;\n\nIF @a % 3 = 1\nBEGIN\n    SELECT @a + @b;\nEND\nELSE IF @a % 3 = 2\nBEGIN\n    SELECT @a * @b;\nEND\nELSE\nBEGIN\n    SELECT @b - @a;\nEND<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u6642\u306e\u5b9f\u884c\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"141\" height=\"52\" src=\"https:\/\/se-pg-toolbox.com\/wp-content\/uploads\/2026\/01\/article33_2.png\" alt=\"\" class=\"wp-image-509\" \/><\/figure>\n\n\n\n<p>@a\u30923\u3067\u5272\u3063\u305f\u4f59\u308a\u304c1\u306b\u306a\u308b\u306e\u3067\u3001\u6700\u521d\u306eIF\u6587\u306e\u30eb\u30fc\u30c8\u3092\u901a\u308a\u3001@a\u3068@b\u306e\u548c\u3092\u6c42\u3081\u308b\u30eb\u30fc\u30c8\u306b\u9032\u307f\u307e\u3057\u305f\u3002<br><br><br>\u6700\u5f8c\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b@a\u30926\u306b\u8a2d\u5b9a\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\" data-line=\"4\"><code>DECLARE @a AS int;\nDECLARE @b AS int;\n\nSET @a = 6;\nSET @b = 7;\n\nIF @a % 3 = 1\nBEGIN\n    SELECT @a + @b;\nEND\nELSE IF @a % 3 = 2\nBEGIN\n    SELECT @a * @b;\nEND\nELSE\nBEGIN\n    SELECT @b - @a;\nEND<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u6642\u306e\u5b9f\u884c\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"142\" height=\"52\" src=\"https:\/\/se-pg-toolbox.com\/wp-content\/uploads\/2026\/01\/article33_3.png\" alt=\"\" class=\"wp-image-510\" \/><\/figure>\n\n\n\n<p>6\u306f3\u3067\u5272\u308a\u5207\u308c\u308b\u306e\u3067\u3001\u6700\u5f8c\u306eELSE\u306e\u30eb\u30fc\u30c8\u306b\u5165\u308a\u3001@b\u3068@a\u306e\u5dee\u3092\u6c42\u3081\u308b\u30eb\u30fc\u30c8\u306b\u5165\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SQL Server\u306eIF\u6587\u5185\u306eBEGIN\u3001END\u306f\u51e6\u7406\u304c1\u884c\u3060\u3051\u3060\u3063\u305f\u3089\u7701\u7565\u3067\u304d\u308b<\/h2>\n\n\n\n<p>\u4eca\u307e\u3067\u6271\u3063\u3066\u304d\u305f\u30af\u30a8\u30ea\u3067\u3059\u304c\u3001IF\u6587\u5185\u306e\u51e6\u7406\u304c1\u884c\u3060\u3051\u3067\u3042\u308c\u3070\u3001BEGIN\u3068END\u3092\u7701\u7565\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<br><br>\u306a\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\"><code>DECLARE @a AS int;\nDECLARE @b AS int;\n\nSET @a = 5;\nSET @b = 7;\n\nIF @a % 3 = 1\n    SELECT @a + @b;\nELSE IF @a % 3 = 2\n    SELECT @a * @b;\nELSE\n    SELECT @b - @a;<\/code><\/pre><\/div>\n\n\n\n<p>\u8907\u96d1\u306a\u30af\u30a8\u30ea\u3084\u30b9\u30c8\u30a2\u30c9\u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u30fc\u3067\u3042\u308c\u3070IF\u306e\u6761\u4ef6\u6587\u5185\u306b\u8a18\u8ff0\u3059\u308b\u51e6\u7406\u304c\u8907\u6570\u5b58\u5728\u3059\u308b\u3053\u3068\u3082\u5c11\u306a\u304f\u306a\u3044\u306e\u3067\u3001\u7701\u7565\u3059\u308b\u3068\u3044\u3046\u66f8\u304d\u65b9\u306f\u305d\u3053\u307e\u3067\u9700\u8981\u304c\u7121\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<br><br>\u4f8b\u30481\u884c\u3067\u66f8\u3051\u308b\u30eb\u30fc\u30c8\u304c\u3042\u3063\u3066\u3082\u3001\u305d\u3053\u3060\u3051BEGIN\u3001END\u3092\u7701\u7565\u3057\u305f\u5f62\u306b\u3059\u308b\u3068\u3001\u4ed6\u306e\u30eb\u30fc\u30c8\u3068\u306e\u7d71\u4e00\u6027\u304c\u306a\u304f\u306a\u308b\u305f\u3081\u3001<span class=\"marker2\">\u5168\u3066\u306e\u30eb\u30fc\u30c8\u306e\u51e6\u7406\u304c1\u884c\u3067\u8a18\u8ff0\u51fa\u6765\u308b\u6642\u306e\u307fBEGIN\u3001END\u3092\u7701\u7565\u3057\u3001\u666e\u6bb5\u306fBEGIN\u3001END\u3092\u3057\u3063\u304b\u308a\u8a18\u8ff0\u3059\u308b<\/span>\u3088\u3046\u306a\u30eb\u30fc\u30eb\u3092\u4f5c\u3063\u305f\u65b9\u304c\u826f\u3044\u304b\u3068\u601d\u308f\u308c\u307e\u3059\u3002<br><br>\u305f\u3060\u3001\u982d\u306e\u7247\u9685\u306b\u51e6\u7406\u304c1\u884c\u3060\u3051\u3067\u3042\u308c\u3070IF\u6587\u306eBEGIN\u3001END\u3092\u7701\u7565\u3067\u304d\u308b\u3068\u3044\u3046\u8003\u3048\u65b9\u3092\u6b8b\u3057\u3066\u304a\u3051\u3070\u3001\u4ed6\u306e\u4eba\u304c\u66f8\u3044\u305f\u30af\u30a8\u30ea\u3084\u30b9\u30c8\u30a2\u30c9\u30d7\u30ed\u30b7\u30fc\u30b8\u30e3\u30fc\u3092\u8aad\u3080\u6642\u306b\u3001\u300c\u3053\u3093\u306a\u66f8\u304d\u65b9\u3082\u51fa\u6765\u305f\u306a\u300d\u3068\u30b9\u30e0\u30fc\u30ba\u306b\u8aad\u3080\u3053\u3068\u304c\u51fa\u6765\u308b\u305f\u3081\u3001\u77e5\u8b58\u3068\u3057\u3066\u899a\u3048\u3066\u304a\u3044\u3066\u640d\u3059\u308b\u3053\u3068\u306f\u306a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u4eca\u56de\u306fSQL Server\u3067IF\u6587\u3092\u3069\u3046\u66f8\u304f\u304b\u3092\u8aac\u660e\u3057\u307e\u3057\u305f\u3002<br><br>\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>SQL Server\u306eIF\u6587\u306b\u306fTHEN\u306f\u4ed8\u304b\u306a\u3044<\/li>\n\n\n\n<li>ELSE IF\u306e\u6761\u4ef6\u3082\u666e\u901a\u306b\u8a2d\u5b9a\u3067\u304d\u308b<\/li>\n\n\n\n<li>ELSE\u306e\u6761\u4ef6\u3082\u666e\u901a\u306b\u8a2d\u5b9a\u3067\u304d\u308b<\/li>\n\n\n\n<li>IF\u6587\u5185\u3067\u306f\u57fa\u672c\u7684\u306bBEGIN\u3001END\u3092\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304c\u3001\u51e6\u7406\u304c1\u884c\u306e\u5834\u5408\u306e\u307f\u7701\u7565\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u308b<\/li>\n\n\n\n<li>\u51e6\u7406\u304c\u7a7a\u306e\u6761\u4ef6\u306f\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u306a\u3044<\/li>\n\n\n\n<li>IF\u6587\u306e\u4e2d\u306b\u3055\u3089\u306bIF\u6587\u3092\u5165\u308c\u308b\u3001\u3044\u308f\u3086\u308b\u5165\u308c\u5b50\u306eIF\u6587\u3092\u66f8\u304f\u3053\u3068\u306f\u306a\u308b\u3079\u304f\u907f\u3051\u308b<\/li>\n<\/ol>\n\n\n\n<p>\u2464\u306b\u3064\u3044\u3066\u306f\u3001\u672c\u6587\u4e2d\u3067\u8aac\u660e\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u66f8\u304d\u65b9\u3092\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-plain\" data-line=\"8-9\"><code>DECLARE @a AS int;\nDECLARE @b AS int;\n\nSET @a = 6;\nSET @b = 7;\n\nIF @a % 3 = 1\nBEGIN\nEND\nELSE IF @a % 3 = 2\nBEGIN\n    SELECT @a * @b;\nEND\nELSE\nBEGIN\n    SELECT @b - @a;\nEND\nGO<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u3053\u3068\u3082\u7d50\u69cb\u5fd8\u308c\u304c\u3061\u306a\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<br><br>\u7a7a\u51e6\u7406\u3092\u5165\u308c\u3066\u3044\u308b\u306e\u304c\u539f\u56e0\u306a\u306e\u306b\u3001\u305d\u308c\u4ee5\u5916\u306e\u539f\u56e0\u3092\u63a2\u305d\u3046\u3068\u3057\u3066\u6642\u9593\u3092\u6d6a\u8cbb\u3059\u308b\u306e\u306f\u3082\u3063\u305f\u3044\u306a\u3044\u3067\u3059\u3002<br><br><span class=\"marker2\">\u3069\u3046\u3057\u3066\u3082\u7a7a\u51e6\u7406\u306b\u3057\u305f\u3051\u308c\u3070\u3001\u51e6\u7406\u3068\u7121\u95a2\u4fc2\u306a\u5909\u6570\u3092\u5b9a\u7fa9\u3057\u3066\u304a\u3044\u3066\u3001\u305d\u3053\u306b\u5024\u3092\u5165\u308c\u308b<\/span>\u306a\u3069\u5de5\u592b\u3057\u305f\u65b9\u304c\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><span class=\"marker\">\u4eca\u56de\u306e\u8a18\u4e8b\u306f\u3053\u3053\u307e\u3067\u3068\u306a\u308a\u307e\u3059\u3002<br>\u307e\u305f\u6b21\u306e\u8a18\u4e8b\u3067\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u56de\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306eIF\u6587\u3092\u4f7f\u3046\u51e6\u7406\u3092\u3001SQL Server\u3092\u4f7f\u3063\u3066\u5b9f\u88c5\u3057\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002 SQL\u306eIF\u6587\u306fSQL Server\u3084Oracle\u3084MySQL\u306a\u3069\u3001\u4f7f\u7528\u3059\u308bSQL\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u5c11\u3057\u66f8\u304d\u65b9\u304c\u7570\u306a\u308a\u307e\u3059\u304c\u3001<\/p>\n","protected":false},"author":2,"featured_media":359,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jin_ogp_image_url":"","_jin_last_featured_id":0,"footnotes":""},"categories":[23],"tags":[24],"class_list":["post-507","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-database","tag-24"],"_links":{"self":[{"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/posts\/507","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=507"}],"version-history":[{"count":1,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/posts\/507\/revisions"}],"predecessor-version":[{"id":511,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/posts\/507\/revisions\/511"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=\/wp\/v2\/media\/359"}],"wp:attachment":[{"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/se-pg-toolbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}