{"id":95,"date":"2023-04-20T03:36:25","date_gmt":"2023-03-01T16:32:36","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/sql%e3%83%87%e3%83%bc%e3%82%bf%e5%9e%8b\/"},"modified":"2025-07-31T13:58:45","modified_gmt":"2025-07-31T04:58:45","slug":"sql%e3%83%87%e3%83%bc%e3%82%bf%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/sql%e3%83%87%e3%83%bc%e3%82%bf%e5%9e%8b\/","title":{"rendered":"SQL\u30c7\u30fc\u30bf\u578b"},"content":{"rendered":"

\u4ee5\u4e0b\u306e\u6587\u7ae0\u3092\u65e5\u672c\u8a9e\u3067\u8a00\u3044\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/h3>\n

\u300cIntroduction\u300d<\/p>\n

\u30a4\u30f3\u30c8\u30ed\u30c0\u30af\u30b7\u30e7\u30f3<\/p>\n

SQL\u306e\u30c7\u30fc\u30bf\u578b\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u5217\u306b\u683c\u7d0d\u3067\u304d\u308b\u5024\u306e\u578b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u5217\u306b\u6574\u6570\u306e\u5024\u306e\u307f\u3092\u683c\u7d0d\u3057\u305f\u3044\u5834\u5408\u3001\u305d\u306e\u30c7\u30fc\u30bf\u578b\u3092INT\u3068\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

SQL\u306e\u30c7\u30fc\u30bf\u578b\u306f\u5927\u307e\u304b\u306b\u6b21\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u5206\u985e\u3055\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \n
  1. \n
      INT\u3001TINYINT\u3001BIGINT\u3001FLOAT\u3001REAL\u306a\u3069\u306e\u6570\u5024\u30c7\u30fc\u30bf\u578b\u3002<\/ol>\n<\/li>\n<\/ol>\n

       <\/p>\n

        \n
      1. \n
          DATE\u3001TIME\u3001DATETIME\u306a\u3069\u306e\u65e5\u4ed8\u3068\u6642\u523b\u306e\u30c7\u30fc\u30bf\u578b\u3002<\/ol>\n<\/li>\n<\/ol>\n

           <\/p>\n

            \n
          1. \n
              CHAR\u3001VARCHAR\u3001TEXT\u306a\u3069\u306e\u6587\u5b57\u3068\u6587\u5b57\u5217\u306e\u30c7\u30fc\u30bf\u578b\u3002<\/ol>\n<\/li>\n<\/ol>\n

               <\/p>\n

                \n
              1. \n
                  NCHAR\u3001NVARCHAR\u3001NTEXT\u306a\u3069\u306eUnicode\u6587\u5b57\u5217\u306e\u30c7\u30fc\u30bf\u578b\u3002<\/ol>\n<\/li>\n<\/ol>\n

                   <\/p>\n

                    \n
                  1. \n
                      BINARY\u3001VARBINARY\u306a\u3069\u306e\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u578b\u3002<\/ol>\n<\/li>\n<\/ol>\n

                       <\/p>\n

                        CLOB\u3001BLOB\u3001XML\u3001CURSOR\u3001TABLE\u306a\u3069\u306e\u305d\u306e\u4ed6\u306e\u30c7\u30fc\u30bf\u578b\u3002<\/ol>\n

                        \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306eSQL\u30c7\u30fc\u30bf\u578b\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3059\u3002<\/p>\n

                        \u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d9\u30f3\u30c0\u30fc\u9593\u306e\u9055\u3044<\/h2>\n
                        \n

                        Note<\/p>\n

                        \u6ce8\u610f\uff1a\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u578b\u304c\u3059\u3079\u3066\u306e\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d9\u30f3\u30c0\u30fc\u306b\u3088\u3063\u3066\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/div>\n<\/div>\n

                        \u4f8b\u3048\u3070\u3001Oracle\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306fDATETIME\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u3089\u305a\u3001MySQL\u306fCLOB\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30b9\u30ad\u30fc\u30de\u3092\u8a2d\u8a08\u3057\u305f\u308a\u3001SQL\u30af\u30a8\u30ea\u3092\u66f8\u3044\u305f\u308a\u3059\u308b\u969b\u306b\u306f\u3001\u30c7\u30fc\u30bf\u578b\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5fc5\u305a\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

                        \n

                        Note<\/p>\n

                        \u6ce8\u610f\uff1a\u3053\u3053\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u578b\u306f\u3001\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u578b\u3092\u542b\u3093\u3067\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u3089\u306f\u6700\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u30c7\u30fc\u30bf\u578b\u3067\u3059\u3002\u4e00\u90e8\u306e\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30d9\u30f3\u30c0\u30fc\u306b\u306f\u3001\u3053\u3053\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u306a\u3044\u72ec\u81ea\u306e\u30c7\u30fc\u30bf\u578b\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n

                        \u305f\u3068\u3048\u3070\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306eSQL Server\u306b\u306fMONEY\u3068SMALLMONEY\u306e\u30c7\u30fc\u30bf\u578b\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4ed6\u306e\u4eba\u6c17\u306e\u3042\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30d9\u30f3\u30c0\u30fc\u3067\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u3053\u3053\u3067\u306f\u30ea\u30b9\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n

                        \n

                        Note<\/p>\n

                        \u6ce8\u610f: \u5404\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d9\u30f3\u30c0\u30fc\u306f\u3001\u7570\u306a\u308b\u30c7\u30fc\u30bf\u30bf\u30a4\u30d7\u306b\u5bfe\u3057\u3066\u72ec\u81ea\u306e\u6700\u5927\u30b5\u30a4\u30ba\u5236\u9650\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/div>\n<\/div>\n

                        \u3042\u306a\u305f\u306e\u7279\u5b9a\u306e\u30b7\u30ca\u30ea\u30aa\u306b\u9069\u3057\u305f\u30c7\u30fc\u30bf\u578b\u3092\u9078\u629e\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

                        SQL\u306e\u6570\u5024\u30c7\u30fc\u30bf\u578b<\/h2>\n
                        \n
                        \n\n\n\n\n\n\n\n\n\n\n\n\n\n
                        Data Type<\/th>\nFrom<\/th>\nTo<\/th>\n<\/tr>\n<\/thead>\n
                        BIT<\/td>\n1<\/td>\n0<\/td>\n<\/tr>\n
                        TINYINT<\/td>\n0<\/td>\n255<\/td>\n<\/tr>\n
                        SMALLINT<\/td>\n-32,768<\/td>\n32,767<\/td>\n<\/tr>\n
                        INT<\/td>\n-2,147,483,648<\/td>\n2,147,483,647<\/td>\n<\/tr>\n
                        BIGINT<\/td>\n-9,223,372,036,854,775,808<\/td>\n9,223,372,036,854,775,807<\/td>\n<\/tr>\n
                        DECIMAL<\/td>\n-10^38 + 1<\/td>\n10^38 – 1<\/td>\n<\/tr>\n
                        NUMERIC<\/td>\n-10^38 + 1<\/td>\n10^38 – 1<\/td>\n<\/tr>\n
                        FLOAT<\/td>\n-1.79E+308<\/td>\n1.79E+308<\/td>\n<\/tr>\n
                        REAL<\/td>\n-3.40E+38<\/td>\n3.40E+38<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

                        SQL\u306e\u65e5\u4ed8\u3068\u6642\u9593\u306e\u30c7\u30fc\u30bf\u578b<\/h2>\n
                        \n
                        \n\n\n\n\n\n\n\n\n\n
                        Data Type<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
                        DATE<\/td>\nStores date in the format YYYY-MM-DD<\/code><\/td>\n<\/tr>\n
                        TIME<\/td>\nStores time in the format HH:MI:SS<\/code><\/td>\n<\/tr>\n
                        DATETIME<\/td>\nStores date and time information in the format YYYY-MM-DD HH:MI:SS<\/code><\/td>\n<\/tr>\n
                        TIMESTAMP<\/td>\nStores number of seconds passed since the Unix epoch ('1970-01-01 00:00:00' UTC<\/code>)<\/td>\n<\/tr>\n
                        YEAR<\/td>\nStores year in a 2-digit or 4-digit format. Range 1901 to 2155 in 4-digit format. Range 70 to 69, representing 1970 to 2069.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

                        SQL\u306e\u6587\u5b57\u304a\u3088\u3073\u6587\u5b57\u5217\u306e\u30c7\u30fc\u30bf\u578b<\/h2>\n
                        \n
                        \n\n\n\n\n\n\n\n\n
                        Data Type<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
                        CHAR<\/td>\nFixed length with a maximum length of 8,000 characters<\/td>\n<\/tr>\n
                        VARCHAR<\/td>\nVariable-length storage with a maximum length of 8,000 characters<\/td>\n<\/tr>\n
                        VARCHAR(max)<\/td>\nVariable-length storage with provided max characters, not supported in MySQL<\/td>\n<\/tr>\n
                        TEXT<\/td>\nVariable-length storage with a maximum size of 2GB data<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
                        \n

                        Note<\/p>\n

                        \u6ce8\u610f: \u3053\u308c\u3089\u306e\u30c7\u30fc\u30bf\u578b\u306f\u6587\u5b57\u30b9\u30c8\u30ea\u30fc\u30e0\u7528\u3067\u3059\u3002Unicode\u30c7\u30fc\u30bf\u3068\u4e00\u7dd2\u306b\u4f7f\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/div>\n<\/div>\n

                        SQL\u306e\u30e6\u30cb\u30b3\u30fc\u30c9\u6587\u5b57\u3068\u6587\u5b57\u5217\u30c7\u30fc\u30bf\u578b<\/h2>\n
                        \n
                        \n\n\n\n\n\n\n\n\n
                        Data Type<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
                        NCHAR<\/td>\nFixed length with a maximum length of 4,000 characters<\/td>\n<\/tr>\n
                        NVARCHAR<\/td>\nVariable-length storage with a maximum length of 4,000 characters<\/td>\n<\/tr>\n
                        NVARCHAR(max)<\/td>\nVariable-length storage with provided max characters<\/td>\n<\/tr>\n
                        NTEXT<\/td>\nVariable-length storage with a maximum size of 1GB data<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
                        \n

                        Note<\/p>\n

                        \u6ce8\u8a18\uff1a\u3053\u308c\u3089\u306e\u30c7\u30fc\u30bf\u578b\u306fMySQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/div>\n<\/div>\n

                        SQL\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u578b<\/h2>\n
                        \n
                        \n\n\n\n\n\n\n\n\n
                        Data Type<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
                        BINARY<\/td>\nFixed length with a maximum length of 8,000 bytes<\/td>\n<\/tr>\n
                        VARBINARY<\/td>\nVariable-length storage with a maximum length of 8,000 bytes<\/td>\n<\/tr>\n
                        VARBINARY(max)<\/td>\nVariable-length storage with provided max bytes<\/td>\n<\/tr>\n
                        IMAGE<\/td>\nVariable-length storage with a maximum size of 2 GB binary data<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

                        SQL\u306e\u305d\u306e\u4ed6\u306e\u30c7\u30fc\u30bf\u578b<\/h2>\n
                        \n
                        \n\n\n\n\n\n\n\n\n
                        Data Type<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
                        CLOB<\/td>\nCharacter large objects that can hold up to 2 GB<\/td>\n<\/tr>\n
                        BLOB<\/td>\nFor large binary objects<\/td>\n<\/tr>\n
                        XML<\/td>\nFor storing XML data<\/td>\n<\/tr>\n
                        JSON<\/td>\nFor storing JSON data<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

                        \u7d50\u8ad6<\/h2>\n

                        \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30ab\u30c6\u30b4\u30ea\u30fc\u306eSQL\u30c7\u30fc\u30bf\u578b\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3057\u305f\u3002<\/p>\n

                        \u4ee5\u4e0b\u306eSQL\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u5b66\u7fd2\u3092\u7d9a\u3051\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

                        \u53c2\u8003\u6587\u732e<\/p>\n

                          \n
                        • Oracle Database Dataypes<\/li>\n
                        • MySQL Data Types<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

                          \u4ee5\u4e0b\u306e\u6587\u7ae0\u3092\u65e5\u672c\u8a9e\u3067\u8a00\u3044\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002 \u300cIntroduction\u300d \u30a4\u30f3\u30c8\u30ed\u30c0\u30af\u30b7\u30e7\u30f3 SQL\u306e\u30c7\u30fc\u30bf\u578b\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u5217\u306b\u683c\u7d0d\u3067\u304d\u308b\u5024\u306e\u578b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u5217\u306b\u6574\u6570\u306e\u5024\u306e\u307f\u3092\u683c\u7d0d\u3057\u305f\u3044\u5834\u5408\u3001\u305d\u306e\u30c7\u30fc\u30bf\u578b\u3092INT\u3068 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[14,26],"class_list":["post-95","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-14","tag-26"],"yoast_head":"\nSQL\u30c7\u30fc\u30bf\u578b - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"SQL\u30c7\u30fc\u30bf\u578b\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/sql\u30c7\u30fc\u30bf\u578b\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL\u30c7\u30fc\u30bf\u578b\" \/>\n<meta property=\"og:description\" content=\"SQL\u30c7\u30fc\u30bf\u578b\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/sql\u30c7\u30fc\u30bf\u578b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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