{"id":6381,"date":"2026-07-29T10:19:17","date_gmt":"2026-07-29T01:19:17","guid":{"rendered":"https:\/\/route-zero.com\/recruit\/?post_type=route&p=6381"},"modified":"2026-09-29T10:19:26","modified_gmt":"2026-09-29T01:19:26","slug":"sql-union-order-by-sort","status":"publish","type":"route","link":"https:\/\/route-zero.com\/recruit\/route\/6381\/","title":{"rendered":"SQL UNION\u306eORDER BY\u304c\u52b9\u304b\u306a\u3044\u539f\u56e0\u3068\u66f8\u304d\u65b9"},"content":{"rendered":"

UNION\u3067\u7d50\u679c\u3092\u307e\u3068\u3081\u305f\u3042\u3068\u306bORDER BY\u3092\u4ed8\u3051\u308b\u3068\u3001\u300c\u3069\u3053\u306b\u66f8\u304f\u306e\u304b\u300d\u300c\u3069\u306e\u5217\u540d\u3092\u4f7f\u3046\u306e\u304b\u300d\u3067\u3064\u307e\u305a\u304d\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u307e\u305a\u899a\u3048\u308b\u306e\u306f\u3001\u6700\u7d42\u7d50\u679c\u3092\u4e26\u3073\u66ff\u3048\u305f\u3044\u306a\u3089ORDER BY\u306f\u96c6\u5408\u6f14\u7b97\u306e\u6700\u5f8c\u306b\u7f6e\u304f\u3001\u3068\u3044\u3046\u5f62\u3067\u3059\u3002<\/p>\n

\u307e\u305a\u7d50\u8ad6\uff1a\u6700\u7d42\u7d50\u679c\u3092\u4e26\u3073\u66ff\u3048\u308bORDER BY\u306fUNION\u306e\u6700\u5f8c<\/h2>\n
SELECT id, name FROM users_a\r\nUNION ALL\r\nSELECT id, name FROM users_b\r\nORDER BY name;<\/code><\/pre>\n
\u3053\u306eORDER BY\u306f2\u3064\u76ee\u306eSELECT\u3060\u3051\u3067\u306f\u306a\u304f\u3001UNION ALL\u3067\u7d50\u5408\u3055\u308c\u305f\u6700\u7d42\u7d50\u679c\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002UNION\u3067\u3082\u8003\u3048\u65b9\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n
\uff08UNION\u3068UNION ALL\u306e\u57fa\u672c\u304b\u3089\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306b\u3064\u3044\u3066\u306f\u300eSQL UNION\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac\uff5c\u9055\u3044\u30fb\u6ce8\u610f\u70b9\u30fb\u6d3b\u7528\u4f8b\u307e\u3068\u3081<\/a>\u300f\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\uff09<\/p>\n
\n
\u539f\u56e01\uff1a\u9014\u4e2d\u306eSELECT\u306bORDER BY\u3092\u66f8\u3044\u3066\u3044\u308b<\/h2>\n
\u5404SELECT\u306e\u9014\u4e2d\u3078\u305d\u306e\u307e\u307eORDER BY\u3092\u66f8\u304f\u3068\u3001DB\u306b\u3088\u3063\u3066\u69cb\u6587\u30a8\u30e9\u30fc\u306b\u306a\u3063\u305f\u308a\u3001\u610f\u56f3\u3057\u305f\u610f\u5473\u306b\u306a\u3089\u306a\u304b\u3063\u305f\u308a\u3057\u307e\u3059\u3002\u6700\u7d42\u7d50\u679c\u3092\u4e26\u3079\u305f\u3044\u3060\u3051\u306a\u3089\u6700\u5f8c\u30781\u56de\u66f8\u304d\u307e\u3059\u3002<\/p>\n
-- \u6700\u7d42\u7d50\u679c\u3092\u4e26\u3079\u308b\r\nSELECT id, created_at FROM logs_a\r\nUNION ALL\r\nSELECT id, created_at FROM logs_b\r\nORDER BY created_at DESC;<\/code><\/pre>\n
\n
\u539f\u56e02\uff1aORDER BY\u3067\u4f7f\u3046\u5217\u540d\u304c\u51fa\u529b\u5217\u3068\u5408\u3063\u3066\u3044\u306a\u3044<\/h2>\n
UNION\u5f8c\u306eORDER BY\u3067\u306f\u3001\u96c6\u5408\u7d50\u679c\u3068\u3057\u3066\u898b\u3048\u308b\u5217\u540d\u3084alias\u3092\u4f7f\u3044\u307e\u3059\u3002DB\u5dee\u3092\u907f\u3051\u308b\u610f\u5473\u3067\u3082\u3001\u5148\u982dSELECT\u3067\u5206\u304b\u308a\u3084\u3059\u3044alias\u3092\u4ed8\u3051\u308b\u3068\u5b89\u5168\u3067\u3059\u3002<\/p>\n
SELECT id, created_at AS sort_time FROM logs_a\r\nUNION ALL\r\nSELECT id, updated_at FROM logs_b\r\nORDER BY sort_time DESC;<\/code><\/pre>\n
2\u3064\u76ee\u306eSELECT\u3067\u5225\u306e\u5217\u540d\u3092\u4f7f\u3063\u3066\u3044\u3066\u3082\u3001\u6700\u7d42\u7d50\u679c\u306e\u5217\u69cb\u9020\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059\u3002\u5b9f\u969b\u306b\u3069\u306e\u540d\u524d\u3067\u53c2\u7167\u3067\u304d\u308b\u304b\u306f\u5229\u7528DB\u306e\u4ed5\u69d8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\n
\u539f\u56e03\uff1a\u5404SELECT\u3067\u5148\u306b\u4e26\u3079\u305f\u3044\u610f\u56f3\u3068\u3001\u6700\u7d42\u7d50\u679c\u306e\u4e26\u3073\u66ff\u3048\u3092\u6df7\u540c\u3057\u3066\u3044\u308b<\/h2>\n
\u500b\u5225SELECT\u306bLIMIT\u3084ORDER BY\u3092\u9069\u7528\u3057\u3066\u304b\u3089UNION\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u62ec\u5f27\u3067query block\u3092\u5206\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u6700\u7d42\u7d50\u679c\u3092\u4e26\u3073\u66ff\u3048\u308b\u30b1\u30fc\u30b9\u3068\u306f\u5225\u3067\u3059\u3002<\/p>\n
(SELECT id, created_at FROM logs_a ORDER BY created_at DESC LIMIT 10)\r\nUNION ALL\r\n(SELECT id, created_at FROM logs_b ORDER BY created_at DESC LIMIT 10)\r\nORDER BY created_at DESC;<\/code><\/pre>\n
PostgreSQL\u3084MySQL\u306e\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u3082\u3001\u62ec\u5f27\u306e\u6709\u7121\u306b\u3088\u3063\u3066LIMIT\u3084ORDER BY\u304c\u500b\u5225query\u3078\u4ed8\u304f\u306e\u304b\u3001\u96c6\u5408\u6f14\u7b97\u5f8c\u306e\u7d50\u679c\u3078\u4ed8\u304f\u306e\u304b\u304c\u5909\u308f\u308b\u70b9\u304c\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
UNION\u3068UNION ALL\u3067ORDER BY\u306e\u66f8\u304d\u65b9\u306f\u5909\u308f\u308b\uff1f<\/h2>\n
\u6700\u7d42\u7d50\u679c\u3092\u4e26\u3073\u66ff\u3048\u308b\u57fa\u672c\u5f62\u306f\u540c\u3058\u3067\u3059\u3002\u9055\u3044\u306f\u91cd\u8907\u884c\u306e\u6271\u3044\u3067\u3059\u3002UNION\u306f\u91cd\u8907\u3092\u9664\u53bb\u3057\u3001UNION ALL\u306f\u91cd\u8907\u3092\u6b8b\u3057\u307e\u3059\u3002\u9806\u5e8f\u81ea\u4f53\u306fORDER BY\u3067\u660e\u793a\u3057\u306a\u3044\u9650\u308a\u4fdd\u8a3c\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n\n\n\n
\u69cb\u6587<\/th>\n\u91cd\u8907<\/th>\n\u6700\u7d42\u4e26\u3073\u9806<\/th>\n<\/tr>\n<\/thead>\n
UNION<\/td>\n\u9664\u53bb\u3059\u308b<\/td>\nORDER BY\u3067\u6307\u5b9a<\/td>\n<\/tr>\n
UNION ALL<\/td>\n\u6b8b\u3059<\/td>\nORDER BY\u3067\u6307\u5b9a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u30a8\u30e9\u30fc\u3084\u60f3\u5b9a\u5916\u306e\u9806\u5e8f\u306b\u306a\u3063\u305f\u3068\u304d\u306e\u78ba\u8a8d\u9806<\/h2>\n
    \n
  • ORDER BY\u304cUNION\u5168\u4f53\u306e\u672b\u5c3e\u306b\u3042\u308b\u304b<\/li>\n
  • ORDER BY\u306e\u5217\u540d\u307e\u305f\u306falias\u304c\u6700\u7d42\u51fa\u529b\u5217\u3068\u3057\u3066\u4f7f\u3048\u308b\u304b<\/li>\n
  • \u500b\u5225SELECT\u3078ORDER BY\/LIMIT\u3092\u4ed8\u3051\u308b\u306a\u3089\u62ec\u5f27\u304c\u5fc5\u8981\u304b<\/li>\n
  • UNION\u3068UNION ALL\u3092\u53d6\u308a\u9055\u3048\u3066\u3044\u306a\u3044\u304b<\/li>\n
  • \u5229\u7528\u3057\u3066\u3044\u308bDB\u88fd\u54c1\u306e\u69cb\u6587\u5dee\u3092\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u78ba\u8a8d\u3057\u305f\u304b<\/li>\n<\/ul>\n
    \u7279\u306b\u300c\u5404SELECT\u3092\u5148\u306b\u4e26\u3079\u305f\u3044\u300d\u306e\u304b\u300c\u7d50\u5408\u3057\u305f\u6700\u7d42\u7d50\u679c\u3092\u4e26\u3079\u305f\u3044\u300d\u306e\u304b\u3092\u5206\u3051\u308b\u3068\u3001\u539f\u56e0\u3092\u5207\u308a\u5206\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n
    \u307e\u3068\u3081\uff1a\u6700\u7d42\u7d50\u679c\u306eORDER BY\u304b\u3089\u8003\u3048\u308b<\/h2>\n
      \n
    • UNION\u5168\u4f53\u3092\u4e26\u3079\u308bORDER BY\u306f\u6700\u5f8c\u306b\u7f6e\u304f<\/li>\n
    • ORDER BY\u3067\u306f\u6700\u7d42\u51fa\u529b\u5217\u3068\u3057\u3066\u53c2\u7167\u3067\u304d\u308b\u540d\u524d\u3092\u4f7f\u3046<\/li>\n
    • \u500b\u5225query\u3078ORDER BY\/LIMIT\u3092\u52b9\u304b\u305b\u308b\u5834\u5408\u306f\u62ec\u5f27\u3092\u691c\u8a0e\u3059\u308b<\/li>\n
    • UNION\/UNION ALL\u3060\u3051\u3067\u306f\u884c\u9806\u306f\u4fdd\u8a3c\u3055\u308c\u306a\u3044<\/li>\n<\/ul>\n
      \u307e\u305a\u624b\u5143\u306eSQL\u3067ORDER BY\u3092\u96c6\u5408\u6f14\u7b97\u306e\u6700\u5f8c\u3078\u79fb\u3057\u3001\u6b21\u306b\u5217alias\u3068\u62ec\u5f27\u306e\u6709\u7121\u3092\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"featured_media":6388,"template":"","meta":{"ssp_meta_title":"SQL UNION\u3067ORDER BY\u304c\u52b9\u304b\u306a\u3044\uff1f\u4f4d\u7f6e\u30fb\u5217\u540d\u30fbUNION ALL\u3092\u89e3\u8aac","ssp_meta_description":"SQL\u306eUNION\u7d50\u679c\u3092ORDER BY\u3067\u4e26\u3073\u66ff\u3048\u308b\u3068\u304d\u306e\u66f8\u304f\u4f4d\u7f6e\u3001\u5217\u540d\u30fb\u5225\u540d\u306e\u4f7f\u3044\u65b9\u3001\u5404SELECT\u5074\u3078ORDER BY\u3092\u7f6e\u304f\u5834\u5408\u306e\u6ce8\u610f\u3001UNION ALL\u3068\u306e\u95a2\u4fc2\u3092\u5b9f\u4f8b\u3067\u6574\u7406\u3057\u307e\u3059\u3002","ssp_meta_keyword":"SQL UNION ORDER BY,UNION ORDER BY,UNION ALL ORDER BY,SQL \u4e26\u3073\u66ff\u3048,SQL UNION \u5217\u540d,SQL ORDER BY \u4f4d\u7f6e","ssp_meta_canonical":""},"route_category":[9],"_links":{"self":[{"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/route\/6381"}],"collection":[{"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/route"}],"about":[{"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/types\/route"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/media\/6388"}],"wp:attachment":[{"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/media?parent=6381"}],"wp:term":[{"taxonomy":"route_category","embeddable":true,"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/route_category?post=6381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}