{"id":12156,"date":"2026-11-12T15:13:12","date_gmt":"2026-11-12T06:13:12","guid":{"rendered":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=12156"},"modified":"2026-11-12T15:16:08","modified_gmt":"2026-11-12T06:16:08","slug":"uuid-%ec%99%84%eb%b2%bd-%ec%a0%95%eb%a6%ac-%ec%9d%98%eb%af%b8-%ec%a2%85%eb%a5%98v1v8-%ec%9e%a5%eb%8b%a8%ec%a0%90","status":"publish","type":"post","link":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=12156","title":{"rendered":"UUID \uc644\ubcbd \uc815\ub9ac: \uc758\ubbf8, \uc885\ub958(v1~v8), \uc7a5\ub2e8\uc810"},"content":{"rendered":"

UUID \uc644\ubcbd \uc815\ub9ac: \uc758\ubbf8, \uc885\ub958(v1~v8), \uc7a5\ub2e8\uc810<\/h1>\n
\n

\ub370\uc774\ud130\ubca0\uc774\uc2a4 \uae30\ubcf8 \ud0a4, \ubd84\uc0b0 \uc2dc\uc2a4\ud15c\uc758 \uc2dd\ubcc4\uc790, API \ub9ac\uc18c\uc2a4 ID \ub4f1 \uac1c\ubc1c\ud558\ub2e4 \ubcf4\uba74 UUID\ub97c \uc815\ub9d0 \uc790\uc8fc \ub9cc\ub098\uac8c \ub429\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 UUID\uac00 \ubb34\uc5c7\uc778\uc9c0, \uc5b4\ub5a4 \ubc84\uc804\uc774 \uc788\ub294\uc9c0, \uadf8\ub9ac\uace0 \uc5b8\uc81c \uc368\uc57c \ud558\uace0 \uc5b8\uc81c \ud53c\ud574\uc57c \ud558\ub294\uc9c0 \uc815\ub9ac\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n

\n

1. UUID\ub780?<\/h2>\n

UUID(Universally Unique Identifier)<\/strong> \ub294 \uc774\ub984 \uadf8\ub300\ub85c "\uc804 \uc138\uacc4\uc801\uc73c\ub85c \uace0\uc720\ud55c \uc2dd\ubcc4\uc790"<\/em> \uc785\ub2c8\ub2e4. \uc911\uc559 \uad00\ub9ac \uc11c\ubc84 \uc5c6\uc774\ub3c4 \uac01\uc790 \ub3c5\ub9bd\uc801\uc73c\ub85c \uc0dd\uc131\ud55c ID\uac00 \uc11c\ub85c \uacb9\uce58\uc9c0 \uc54a\ub3c4\ub85d \uc124\uacc4\ub41c 128\ube44\ud2b8(16\ubc14\uc774\ud2b8)<\/strong> \uac12\uc785\ub2c8\ub2e4.<\/p>\n

Microsoft \uc9c4\uc601\uc5d0\uc11c\ub294 \uac19\uc740 \uac1c\ub150\uc744 GUID(Globally Unique Identifier)<\/strong> \ub77c\uace0 \ubd80\ub974\uba70, \uc0ac\uc2e4\uc0c1 \ub3d9\uc77c\ud55c \uac83\uc73c\ub85c \ubd10\ub3c4 \ub429\ub2c8\ub2e4.<\/p>\n

UUID \ud45c\uc900\uc740 \uc6d0\ub798 RFC 4122<\/strong>(2005)\uc5d0 \uc815\uc758\ub418\uc5b4 \uc788\uc5c8\uace0, 2024\ub144\uc5d0 RFC 9562<\/strong>\uac00 \ubc1c\ud45c\ub418\uba74\uc11c \uc774\ub97c \ub300\uccb4\ud588\uc2b5\ub2c8\ub2e4. RFC 9562\uc5d0\uc11c\ub294 \uae30\uc874 v1~v5\uc5d0 \ub354\ud574 v6, v7, v8<\/strong>\uc774 \uc0c8\ub85c \uc815\uc2dd \ucd94\uac00\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n

1.1 \ud615\uc2dd<\/h3>\n

UUID\ub294 \ubcf4\ud1b5 32\uac1c\uc758 16\uc9c4\uc218 \ubb38\uc790\ub97c \ud558\uc774\ud508(-<\/code>)\uc73c\ub85c \uad6c\ubd84\ud55c 8-4-4-4-12<\/strong> \ud615\ud0dc\uc758 36\uc790 \ubb38\uc790\uc5f4\ub85c \ud45c\ud604\ud569\ub2c8\ub2e4.<\/p>\n

550e8400-e29b-41d4-a716-446655440000\nxxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx<\/code><\/pre>\n
    \n
  • M (version)<\/strong>: 13\ubc88\uc9f8 \ubb38\uc790. UUID\uc758 \ubc84\uc804(1~8)\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc704 \uc608\uc2dc\ub294 4<\/code> \u2192 v4<\/li>\n
  • N (variant)<\/strong>: 17\ubc88\uc9f8 \ubb38\uc790. UUID\uc758 \ub808\uc774\uc544\uc6c3 \uaddc\uaca9\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. RFC \ud45c\uc900 UUID\ub77c\uba74 8<\/code>, 9<\/code>, a<\/code>, b<\/code> \uc911 \ud558\ub098\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n
    \uc989, 128\ube44\ud2b8 \uc911 \uc77c\ubd80(\ubc84\uc804 4\ube44\ud2b8 + \ubcc0\ud615 2\ube44\ud2b8)\ub294 \uba54\ud0c0\ub370\uc774\ud130\ub85c \uc4f0\uc774\uace0, \ub098\uba38\uc9c0 \ube44\ud2b8\uac00 \uc2e4\uc81c \uace0\uc720\uc131\uc744 \ucc45\uc784\uc9d1\ub2c8\ub2e4.<\/p>\n
    1.2 \ud2b9\uc218 UUID<\/h3>\n\n\n\n\n\n\n
    \uc774\ub984<\/th>\n\uac12<\/th>\n\uc6a9\ub3c4<\/th>\n<\/tr>\n<\/thead>\n
    Nil UUID<\/td>\n00000000-0000-0000-0000-000000000000<\/code><\/td>\n"\uac12 \uc5c6\uc74c"\uc744 \ub098\ud0c0\ub0bc \ub54c<\/td>\n<\/tr>\n
    Max UUID<\/td>\nffffffff-ffff-ffff-ffff-ffffffffffff<\/code><\/td>\n\ucd5c\ub313\uac12 \ud45c\ud604 (RFC 9562\uc5d0\uc11c \ucd94\uac00)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n
    2. UUID\uc758 \uc885\ub958 (\ubc84\uc804\ubcc4 \uc815\ub9ac)<\/h2>\n
    UUID v1 \u2014 \uc2dc\uac04 + MAC \uc8fc\uc18c \uae30\ubc18<\/h3>\n
      \n
    • \uad6c\uc131<\/strong>: 60\ube44\ud2b8 \ud0c0\uc784\uc2a4\ud0ec\ud504(1582\ub144 10\uc6d4 15\uc77c\ubd80\ud130 100ns \ub2e8\uc704) + \ud074\ub7ed \uc2dc\ud000\uc2a4 + \ub178\ub4dc ID(\ubcf4\ud1b5 MAC \uc8fc\uc18c)<\/li>\n
    • \uc7a5\uc810<\/strong>: \uc0dd\uc131 \uc2dc\uac01\uc744 \ucd94\ucd9c\ud560 \uc218 \uc788\uace0, \uac19\uc740 \uc7a5\ube44\uc5d0\uc11c\ub294 \ucda9\ub3cc \uac00\ub2a5\uc131\uc774 \uc0ac\uc2e4\uc0c1 \uc5c6\uc74c<\/li>\n
    • \ub2e8\uc810<\/strong>:\n
        \n
      • MAC \uc8fc\uc18c\uac00 \ub178\ucd9c\ub418\uc5b4 \uc0dd\uc131\ud55c \uc7a5\ube44\ub97c \ucd94\uc801<\/strong>\ud560 \uc218 \uc788\uc74c (\uac1c\uc778\uc815\ubcf4\u00b7\ubcf4\uc548 \uc774\uc288)<\/li>\n
      • \ud0c0\uc784\uc2a4\ud0ec\ud504 \ube44\ud2b8\uac00 "\ud558\uc704 \u2192 \uc0c1\uc704" \uc21c\uc11c\ub85c \ub4a4\uc11e\uc5ec \ubc30\uce58\ub418\uc5b4 \uc788\uc5b4 \ubb38\uc790\uc5f4\ub85c \uc815\ub82c\ud574\ub3c4 \uc2dc\uac04\uc21c\uc774 \ub418\uc9c0 \uc54a\uc74c<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
        \uc608: 6ba7b810-9dad-11d1-80b4-00c04fd430c8<\/code><\/pre>\n
        UUID v2 \u2014 DCE Security<\/h3>\n
          \n
        • v1\uc744 \ubcc0\ud615\ud574 POSIX UID\/GID \uac19\uc740 \ub85c\uceec \ub3c4\uba54\uc778 \uc815\ubcf4\ub97c \ub123\uc740 \ubc84\uc804<\/li>\n
        • \uc0ac\uc6a9\ucc98\uac00 \uadf9\ud788 \ub4dc\ubb3c\uace0, \ub300\ubd80\ubd84\uc758 \ub77c\uc774\ube0c\ub7ec\ub9ac\uac00 \uc9c0\uc6d0\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc2e4\ubb34\uc5d0\uc11c\ub294 \uc0ac\uc2e4\uc0c1 \ubb34\uc2dc\ud574\ub3c4 \ub429\ub2c8\ub2e4.<\/strong><\/li>\n<\/ul>\n
          UUID v3 \u2014 \uc774\ub984 \uae30\ubc18 (MD5)<\/h3>\n
            \n
          • \uad6c\uc131<\/strong>: \ub124\uc784\uc2a4\ud398\uc774\uc2a4 UUID + \uc774\ub984(\ubb38\uc790\uc5f4)<\/code>\uc744 MD5<\/strong>\ub85c \ud574\uc2dc<\/li>\n
          • \ud2b9\uc9d5<\/strong>: \uac19\uc740 \ub124\uc784\uc2a4\ud398\uc774\uc2a4\uc640 \uac19\uc740 \uc774\ub984\uc744 \ub123\uc73c\uba74 \ud56d\uc0c1 \uac19\uc740 UUID<\/strong>\uac00 \ub098\uc634 (\uacb0\uc815\uc801, deterministic)<\/li>\n
          • \uc6a9\ub3c4<\/strong>: URL, \ub3c4\uba54\uc778 \uc774\ub984 \ub4f1 "\uc774\ubbf8 \uace0\uc720\ud55c \uc774\ub984"\uc744 UUID\ub85c \ubcc0\ud658\ud558\uace0 \uc2f6\uc744 \ub54c<\/li>\n
          • \ub2e8\uc810<\/strong>: MD5\ub294 \uc554\ud638\ud559\uc801\uc73c\ub85c \ucde8\uc57d\ud558\ubbc0\ub85c \uc0c8\ub85c \uc4f4\ub2e4\uba74 v5 \uad8c\uc7a5<\/li>\n<\/ul>\n
            UUID v4 \u2014 \ub79c\ub364<\/h3>\n
              \n
            • \uad6c\uc131<\/strong>: 122\ube44\ud2b8\ub97c \ub09c\uc218<\/strong>\ub85c \ucc44\uc6c0 (\ubc84\uc804\u00b7\ubcc0\ud615 \ube44\ud2b8 6\ube44\ud2b8 \uc81c\uc678)<\/li>\n
            • \ud604\uc7ac \uac00\uc7a5 \ub110\ub9ac \uc4f0\uc774\ub294 \ubc84\uc804<\/strong>\uc785\ub2c8\ub2e4.<\/li>\n
            • \ucda9\ub3cc \ud655\ub960<\/strong>: \ub9e4\ucd08 10\uc5b5 \uac1c\uc529 \uc57d 85\ub144 \ub3d9\uc548 \uc0dd\uc131\ud574\uc57c \ucda9\ub3cc \ud655\ub960\uc774 50%\uc5d0 \ub3c4\ub2ec\ud560 \uc815\ub3c4\ub85c \ub0ae\uc2b5\ub2c8\ub2e4.<\/li>\n
            • \ub2e8\uc810<\/strong>: \uc644\uc804\ud788 \ubb34\uc791\uc704\uc774\ubbc0\ub85c \uc815\ub82c \uc21c\uc11c\uac00 \uc5c6\uace0<\/strong>, DB \uc778\ub371\uc2a4 \uc131\ub2a5\uc5d0 \ubd88\ub9ac\ud569\ub2c8\ub2e4. (\ub4a4\uc5d0\uc11c \uc790\uc138\ud788 \uc124\uba85)<\/li>\n<\/ul>\n
              \uc608: f47ac10b-58cc-4372-a567-0e02b2c3d479<\/code><\/pre>\n
              UUID v5 \u2014 \uc774\ub984 \uae30\ubc18 (SHA-1)<\/h3>\n
                \n
              • v3\uc640 \uac19\uc740 \ubc29\uc2dd\uc774\uc9c0\ub9cc \ud574\uc2dc \uc54c\uace0\ub9ac\uc998\uc73c\ub85c SHA-1<\/strong>\uc744 \uc0ac\uc6a9<\/li>\n
              • \uc774\ub984 \uae30\ubc18 UUID\uac00 \ud544\uc694\ud558\uba74 v3\ubcf4\ub2e4 v5\ub97c \uad8c\uc7a5<\/strong>\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n
                import uuid\nuuid.uuid5(uuid.NAMESPACE_DNS, "example.com")\n# cfbff0d1-9375-5685-968c-48ce8b15ae17<\/code><\/pre>\n
                UUID v6 \u2014 \uc815\ub82c \uac00\ub2a5\ud55c v1 (RFC 9562 \uc2e0\uaddc)<\/h3>\n
                  \n
                • v1\uacfc \uac19\uc740 \uc815\ubcf4\ub97c \ub2f4\ub418, \ud0c0\uc784\uc2a4\ud0ec\ud504 \ube44\ud2b8\ub97c \uc0c1\uc704 \ube44\ud2b8\ubd80\ud130 \uc21c\uc11c\ub300\ub85c<\/strong> \uc7ac\ubc30\uce58<\/li>\n
                • \uadf8 \uacb0\uacfc \ubb38\uc790\uc5f4\/\ubc14\uc774\ud2b8 \uc815\ub82c = \uc2dc\uac04\uc21c \uc815\ub82c<\/strong>\uc774 \ub429\ub2c8\ub2e4.<\/li>\n
                • \uae30\uc874\uc5d0 v1\uc744 \uc4f0\ub358 \uc2dc\uc2a4\ud15c\uacfc\uc758 \ud638\ud658\uc744 \uc704\ud574 \uc874\uc7ac\ud558\uba70, \uc0c8 \uc2dc\uc2a4\ud15c\uc774\ub77c\uba74 \ubcf4\ud1b5 v7\uc744 \uad8c\uc7a5<\/strong>\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n
                  UUID v7 \u2014 Unix \ud0c0\uc784\uc2a4\ud0ec\ud504 + \ub79c\ub364 (RFC 9562 \uc2e0\uaddc) \u2b50<\/h3>\n
                    \n
                  • \uad6c\uc131<\/strong>: \uc0c1\uc704 48\ube44\ud2b8 = Unix epoch \ubc00\ub9ac\ucd08 \ud0c0\uc784\uc2a4\ud0ec\ud504<\/strong>, \ub098\uba38\uc9c0 = \ub79c\ub364(+ \uc120\ud0dd\uc801 \uce74\uc6b4\ud130)<\/li>\n
                  • \uc7a5\uc810<\/strong>:\n
                      \n
                    • \uc2dc\uac04\uc21c\uc73c\ub85c \uc815\ub82c \uac00\ub2a5<\/strong> \u2192 DB \uc778\ub371\uc2a4 \uce5c\ud654\uc801<\/li>\n
                    • MAC \uc8fc\uc18c \uac19\uc740 \uc7a5\ube44 \uc815\ubcf4\uac00 \uc5c6\uc5b4 v1\/v6\ubcf4\ub2e4 \uc548\uc804<\/li>\n
                    • \ub79c\ub364 \ube44\ud2b8\uac00 \ucda9\ubd84\ud574 \ucda9\ub3cc \uac71\uc815\uc774 \uac70\uc758 \uc5c6\uc74c<\/li>\n<\/ul>\n<\/li>\n
                    • \ucd5c\uadfc \uc2e0\uaddc \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c \uac00\uc7a5 \ucd94\ucc9c\ub418\ub294 \ubc84\uc804<\/strong>\uc785\ub2c8\ub2e4. PostgreSQL 18\ubd80\ud130 uuidv7()<\/code> \ud568\uc218\uac00 \ub0b4\uc7a5\ub418\ub294 \ub4f1 \uc0dd\ud0dc\uacc4 \uc9c0\uc6d0\ub3c4 \ube60\ub974\uac8c \ub298\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n
                      \uc608: 018f3e5c-7b2a-7c4e-9a1d-3f6b8e2c1d4a\n    \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n    \ud0c0\uc784\uc2a4\ud0ec\ud504(ms)<\/code><\/pre>\n
                      UUID v8 \u2014 \uc0ac\uc6a9\uc790 \uc815\uc758 (RFC 9562 \uc2e0\uaddc)<\/h3>\n
                        \n
                      • \ubc84\uc804\u00b7\ubcc0\ud615 \ube44\ud2b8\ub9cc \uc9c0\ud0a4\uba74 \ub098\uba38\uc9c0 122\ube44\ud2b8\ub97c \uc790\uc720\ub86d\uac8c \uc124\uacc4<\/strong>\ud560 \uc218 \uc788\ub294 \ubc84\uc804<\/li>\n
                      • \ud2b9\uc218\ud55c \uc694\uad6c\uc0ac\ud56d(\uc790\uccb4 \uc0e4\ub4dc ID \ud3ec\ud568, \ub2e4\ub978 \ud574\uc2dc \uc54c\uace0\ub9ac\uc998 \uc0ac\uc6a9 \ub4f1)\uc774 \uc788\uc744 \ub54c \uc0ac\uc6a9<\/li>\n
                      • \uc0c1\ud638\uc6b4\uc6a9\uc131\uc740 \uac01\uc790 \ucc45\uc784\uc9c0\ub294 \uc601\uc5ed\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n
                        \ubc84\uc804\ubcc4 \uc694\uc57d\ud45c<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
                        \ubc84\uc804<\/th>\n\uc0dd\uc131 \ubc29\uc2dd<\/th>\n\uc815\ub82c \uac00\ub2a5<\/th>\n\uacb0\uc815\uc801<\/th>\n\ud504\ub77c\uc774\ubc84\uc2dc<\/th>\n\ucd94\ucc9c \uc6a9\ub3c4<\/th>\n<\/tr>\n<\/thead>\n
                        v1<\/td>\n\uc2dc\uac04 + MAC<\/td>\n\u2717<\/td>\n\u2717<\/td>\n\u26a0\ufe0f MAC \ub178\ucd9c<\/td>\n\ub808\uac70\uc2dc<\/td>\n<\/tr>\n
                        v2<\/td>\nDCE \ubcf4\uc548<\/td>\n\u2717<\/td>\n\u2717<\/td>\n\u26a0\ufe0f<\/td>\n\uc0ac\uc6a9 \uc548 \ud568<\/td>\n<\/tr>\n
                        v3<\/td>\nMD5(\uc774\ub984)<\/td>\n\u2717<\/td>\n\u2713<\/td>\n\u2713<\/td>\n\ub808\uac70\uc2dc \uc774\ub984 \uae30\ubc18<\/td>\n<\/tr>\n
                        v4<\/td>\n\ub79c\ub364<\/td>\n\u2717<\/td>\n\u2717<\/td>\n\u2713<\/td>\n\ubc94\uc6a9 ID, \ud1a0\ud070\uc131 ID<\/td>\n<\/tr>\n
                        v5<\/td>\nSHA-1(\uc774\ub984)<\/td>\n\u2717<\/td>\n\u2713<\/td>\n\u2713<\/td>\n\uc774\ub984 \u2192 ID \ubcc0\ud658<\/td>\n<\/tr>\n
                        v6<\/td>\n\uc2dc\uac04(\uc7ac\ubc30\uce58) + \ub178\ub4dc<\/td>\n\u2713<\/td>\n\u2717<\/td>\n\u26a0\ufe0f<\/td>\nv1 \ub9c8\uc774\uadf8\ub808\uc774\uc158<\/td>\n<\/tr>\n
                        v7<\/td>\nUnix ms + \ub79c\ub364<\/td>\n\u2713<\/td>\n\u2717<\/td>\n\u2713<\/td>\nDB \uae30\ubcf8 \ud0a4 (\uc2e0\uaddc \ucd94\ucc9c)<\/strong><\/td>\n<\/tr>\n
                        v8<\/td>\n\uc0ac\uc6a9\uc790 \uc815\uc758<\/td>\n\uc124\uacc4\uc5d0 \ub530\ub77c<\/td>\n\uc124\uacc4\uc5d0 \ub530\ub77c<\/td>\n\uc124\uacc4\uc5d0 \ub530\ub77c<\/td>\n\ud2b9\uc218 \ubaa9\uc801<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                        \n
                        3. UUID\uc758 \uc7a5\uc810<\/h2>\n
                        3.1 \uc911\uc559 \uc870\uc815 \uc5c6\uc774 \uace0\uc720\ud55c ID \uc0dd\uc131<\/h3>\n
                        DB\uc758 AUTO_INCREMENT<\/code>\ub294 DB\uac00 \ubc88\ud638\ub97c \ubc1c\uae09\ud574 \uc918\uc57c \ud558\uc9c0\ub9cc, UUID\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158, \ud074\ub77c\uc774\uc5b8\ud2b8, \uc5ec\ub7ec \uc11c\ubc84 \uc5b4\ub514\uc11c\ub4e0 \ub3c5\ub9bd\uc801\uc73c\ub85c<\/strong> \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubd84\uc0b0 \uc2dc\uc2a4\ud15c, \ub9c8\uc774\ud06c\ub85c\uc11c\ube44\uc2a4, \uc624\ud504\ub77c\uc778 \uc571 \ub3d9\uae30\ud654 \ub4f1\uc5d0 \uc720\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n
                        3.2 DB\uc5d0 \uc800\uc7a5\ud558\uae30 \uc804\uc5d0 ID\ub97c \uc54c \uc218 \uc788\uc74c<\/h3>\n
                        INSERT \uc774\uc804\uc5d0 ID\ub97c \ubbf8\ub9ac \ub9cc\ub4e4 \uc218 \uc788\uc73c\ubbc0\ub85c, \uc5f0\uad00\ub41c \uc5ec\ub7ec \uc5d4\ud2f0\ud2f0\ub97c \ud55c \ubc88\uc5d0 \uad6c\uc131\ud558\uac70\ub098 \uc774\ubca4\ud2b8\u00b7\uba54\uc2dc\uc9c0\uc5d0 ID\ub97c \uba3c\uc800 \uc2e4\uc5b4 \ubcf4\ub0b4\uae30 \uc27d\uc2b5\ub2c8\ub2e4.<\/p>\n
                        3.3 \ub370\uc774\ud130 \ubcd1\ud569\uc774 \uc26c\uc6c0<\/h3>\n
                        \uc5ec\ub7ec DB\ub098 \uc0e4\ub4dc\uc758 \ub370\uc774\ud130\ub97c \ud569\uce60 \ub54c \uc815\uc218 ID\ub294 \ucda9\ub3cc\ud558\uae30 \uc27d\uc9c0\ub9cc, UUID\ub294 \uadf8\ub300\ub85c \ud569\uccd0\ub3c4 \uacb9\uce58\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n
                        3.4 ID \ucd94\uce21(\uc5f4\uac70 \uacf5\uaca9) \ubc29\uc9c0<\/h3>\n
                        \/users\/1<\/code>, \/users\/2<\/code> \uac19\uc740 \uc21c\ucc28 ID\ub294 \ub2e4\ub978 \ub9ac\uc18c\uc2a4 ID\ub97c \uc27d\uac8c \uc9d0\uc791\ud560 \uc218 \uc788\uace0, \uc804\uccb4 \ub370\uc774\ud130 \uaddc\ubaa8(\uac00\uc785\uc790 \uc218, \uc8fc\ubb38 \uc218 \ub4f1)\ub3c4 \ub178\ucd9c\ub429\ub2c8\ub2e4. v4 UUID\ub294 \uc774\ub7f0 \ucd94\uce21\uc744 \uc5b4\ub835\uac8c \ud569\ub2c8\ub2e4.<\/p>\n
                        \n
                        \u26a0\ufe0f \ub2e8, UUID\ub294 \ubcf4\uc548 \ud1a0\ud070\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/strong> \ucd94\uce21\ud558\uae30 \uc5b4\ub835\ub2e4\uace0 \ud574\uc11c \uad8c\ud55c \uac80\uc0ac\ub97c \uc0dd\ub7b5\ud574\uc11c\ub294 \uc548 \ub418\uba70, v1\u00b7v6\u00b7v7\uc740 \uc0dd\uc131 \uc2dc\uac01 \uac19\uc740 \uc815\ubcf4\uac00 \ub4dc\ub7ec\ub0a9\ub2c8\ub2e4. \ube44\ubc00\ubc88\ud638 \uc7ac\uc124\uc815 \ud1a0\ud070\ucc98\ub7fc \ube44\ubc00\uc131\uc774 \ud544\uc694\ud55c \uac12\uc740 \ubcc4\ub3c4\uc758 \uc554\ud638\ud559\uc801 \ub09c\uc218 \ud1a0\ud070\uc744 \uc4f0\uc138\uc694.<\/p>\n<\/blockquote>\n
                        3.5 \ud45c\uc900\ud654\uc640 \ub113\uc740 \uc9c0\uc6d0<\/h3>\n
                        RFC \ud45c\uc900\uc774\ubbc0\ub85c \uac70\uc758 \ubaa8\ub4e0 \uc5b8\uc5b4\uc640 DB\uac00 UUID \uc0dd\uc131\u00b7\uc800\uc7a5\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. (PostgreSQL uuid<\/code> \ud0c0\uc785, Java java.util.UUID<\/code>, Python uuid<\/code> \ubaa8\ub4c8 \ub4f1)<\/p>\n
                        \n
                        4. UUID\uc758 \ub2e8\uc810<\/h2>\n
                        4.1 \uc800\uc7a5 \uacf5\uac04\uc774 \ud07c<\/h3>\n\n\n\n\n\n\n\n\n
                        \ud0c0\uc785<\/th>\n\ud06c\uae30<\/th>\n<\/tr>\n<\/thead>\n
                        INT<\/code><\/td>\n4\ubc14\uc774\ud2b8<\/td>\n<\/tr>\n
                        BIGINT<\/code><\/td>\n8\ubc14\uc774\ud2b8<\/td>\n<\/tr>\n
                        UUID (\ubc14\uc774\ub108\ub9ac)<\/td>\n16\ubc14\uc774\ud2b8<\/td>\n<\/tr>\n
                        UUID (\ubb38\uc790\uc5f4 CHAR(36)<\/code>)<\/td>\n36\ubc14\uc774\ud2b8 \uc774\uc0c1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                        \uae30\ubcf8 \ud0a4\uac00 \ucee4\uc9c0\uba74 \uc774\ub97c \ucc38\uc870\ud558\ub294 \ubaa8\ub4e0 \uc678\ub798 \ud0a4\uc640 \ubcf4\uc870 \uc778\ub371\uc2a4\ub3c4 \ud568\uaed8 \ucee4\uc9d1\ub2c8\ub2e4.<\/strong> \ud2b9\ud788 MySQL InnoDB\ucc98\ub7fc \ubcf4\uc870 \uc778\ub371\uc2a4\uac00 \uae30\ubcf8 \ud0a4 \uac12\uc744 \ud568\uaed8 \uc800\uc7a5\ud558\ub294 \uad6c\uc870\uc5d0\uc11c\ub294 \uc601\ud5a5\uc774 \ud07d\ub2c8\ub2e4.<\/p>\n
                        \ud83d\udc49 \ubb38\uc790\uc5f4 \ub300\uc2e0 \ubc14\uc774\ub108\ub9ac\ub85c \uc800\uc7a5\ud558\uc138\uc694.<\/strong> (PostgreSQL uuid<\/code>, MySQL BINARY(16)<\/code> \ub4f1)<\/p>\n
                        4.2 \ub79c\ub364 UUID(v4)\uc758 \uc778\ub371\uc2a4 \uc131\ub2a5 \uc800\ud558<\/h3>\n
                        B-Tree \uc778\ub371\uc2a4\ub294 \uac12\uc774 \uc21c\uc11c\ub300\ub85c \ub4e4\uc5b4\uc62c \ub54c \uac00\uc7a5 \ud6a8\uc728\uc801\uc785\ub2c8\ub2e4. v4\ucc98\ub7fc \uc644\uc804\ud788 \ubb34\uc791\uc704 \uac12\uc774 \ub4e4\uc5b4\uc624\uba74:<\/p>\n