{"id":2085,"date":"2018-01-25T22:32:47","date_gmt":"2018-01-25T13:32:47","guid":{"rendered":"http:\/\/haisins.epac.to\/wordpress\/?p=2085"},"modified":"2018-01-25T22:32:47","modified_gmt":"2018-01-25T13:32:47","slug":"news-dba%eb%8a%94-%ec%97%86%eb%8b%a4-%ec%98%a4%eb%9d%bc%ed%81%b4-%ec%9e%90%ec%9c%a8%ec%a3%bc%ed%96%89-db-%ea%b3%b5%ea%b0%9c","status":"publish","type":"post","link":"http:\/\/haisins.synology.me\/wordpress\/?p=2085","title":{"rendered":"[NEWS] &#8220;DBA\ub294 \uc5c6\ub2e4&#8221; \uc624\ub77c\ud074, \uc790\uc728\uc8fc\ud589 DB \uacf5\uac1c"},"content":{"rendered":"<p>\uc624\ub77c\ud074\uc774 \uc804\uc138\uacc4 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uad00\ub9ac\uc790(<span class=\"word_dic en\">DBA<\/span>)\ub97c \uae34\uc7a5\uc2dc\ud0a4\ub294 \uae30\uc220\uc744 \uc120\ubcf4\uc600\ub2e4.\u00a0<span class=\"word_dic en\">DBA<\/span>\uc758 \uc5c5\ubb34\ub97c \ub300\ud3ed \uc904\uc774\ub294 \uc790\uc728\uc8fc\ud589\u00a0<span class=\"word_dic en\">DB<\/span>\ub2e4.<\/p>\n<p>\uc624\ub77c\ud074\uc740 \uc774\ub2ec\ucd08 \ubbf8\uad6d \uc0cc\ud504\ub780\uc2dc\uc2a4\ucf54\uc5d0\uc11c \uac1c\ucd5c\ud55c &#8216;\uc624\ub77c\ud074 \uc624\ud508\uc6d4\ub4dc2017&#8217; \ucee8\ud37c\ub7f0\uc2a4\uc5d0\uc11c \u2018\uc790\uc728\uc8fc\ud589 \ub370\uc774\ud130\ubca0\uc774\uc2a4\u2019\ub97c \uacf5\uac1c\ud588\ub2e4.<\/p>\n<p>\uc624\ub77c\ud074\uc740 \uc774\uc640 \ud568\uaed8 \uad6c\ucd95\ud615\u00a0<span class=\"word_dic en\">DB<\/span>\uc81c\ud488\uc778 &#8216;\uc624\ub77c\ud074 \ub370\uc774\ud130\ubca0\uc774\uc2a4 18c&#8217;\ub97c \ucd9c\uc2dc\ud55c\ub2e4\uace0 \ubc1d\ud614\ub2e4. \uadf8\ub3d9\uc548 \ubc84\uc804 \uc22b\uc790\ub97c \ud55c\ub2e8\uacc4\uc529 \uc62c\ub9ac\ub358 \uad00\ud589\uc744 \ubc84\ub9ac\uace0, 2018\ub144 \ucd9c\uc2dc\ub41c\ub2e4\ub294 \uc810\uc744 \ud45c\uc2dc\ud588\ub2e4. \uc624\ub77c\ud074\u00a0<span class=\"word_dic en\">DB<\/span>\u00a018c\ub294 \uc790\ub3d9\ud654 \uc5ed\ub7c9\uacfc\u00a0<span class=\"word_dic en\">OLTP<\/span>\u00a0\ubc0f \ubd84\uc11d \uc131\ub2a5\uc744 \ub300\ud3ed \uac1c\uc120\ud588\uc73c\uba70, \ud1b5\ud569 \uc5ed\ub7c9\uc744 \uac15\ud654\ud588\ub2e4.<\/p>\n<p><span class=\"end_photo_org\"><img src=\"https:\/\/i0.wp.com\/imgnews.naver.net\/image\/092\/2017\/10\/13\/0002124483_001_20171013144944288.jpg?w=640\" data-recalc-dims=\"1\" \/><\/span><\/p>\n<p>\uc624\ub77c\ud074\u00a0<span class=\"word_dic en\">DB<\/span>\u00a018c\ub85c \uc791\ub3d9\ub418\ub294 \uc0c8\ub85c\uc6b4 \uc624\ub77c\ud074 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ud074\ub77c\uc6b0\ub4dc\ub294 \uba38\uc2e0\ub7ec\ub2dd \uae30\uc220\uc744 \ud65c\uc6a9\ud574\u00a0<span class=\"word_dic en\">DBA<\/span>)\uc758 \uc791\uc5c5\uc744 \uc790\ub3d9\ud654\ud558\uace0, \ud734\uba3c\uc5d0\ub7ec\ub97c \uc5c6\uc560 \uac00\uc6a9\uc131\uacfc \uace0\uc131\ub2a5, \ubcf4\uc548\uc131 \ub4f1\uc744 \ubcf4\uc7a5\ud55c\ub2e4.<\/p>\n<p>\uc774\uc5d0 \ub530\ub77c\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\ud29c\ub2dd \uc791\uc5c5\uc774 \uba38\uc2e0\ub7ec\ub2dd\uc744 \uac70\uccd0 \uc9c0\uc18d\uc801\uc73c\ub85c \uc774\ub904\uc9c0\uace0, \uc5c5\uadf8\ub808\uc774\ub4dc\uc640 \ud328\uce58\uac00 \uc6b4\uc601\uc911 \uc790\ub3d9\uc73c\ub85c \uc774\ub904\uc9c4\ub2e4. \ubd80\ud558 \uc9d1\uc911 \uc2dc\u00a0<span class=\"word_dic en\">DB<\/span>\uac00 \uc989\uac01\uc801\uc73c\ub85c \ucef4\ud4e8\ud2b8 \ubc0f \uc2a4\ud1a0\ub9ac\uc9c0 \uc790\uc6d0\uc744 \uc2dc\uc2a4\ud15c \uc911\ub2e8 \uc5c6\uc774 \ud655\ub300 \uc870\uc815\ud55c\ub2e4. \uc7a5\uc560 \ubc1c\uc0dd \uc2dc \uc790\ub3d9 \ubcf5\uad6c \uae30\ub2a5\uc744 \uc81c\uacf5\ud574 \uc11c\ube44\uc2a4\uc218\uc900\ud611\uc57d(<span class=\"word_dic en\">SLA<\/span>) 99.995%\ub97c \ubcf4\uc7a5\ud55c\ub2e4. \uc774\ub294 1\ub144 \uc911 30\ubd84 \ubbf8\ub9cc\uc758 \uc7a5\uc560\uc2dc\uac04\uc744 \ubcf4\uc7a5\ud55c\ub2e4\ub294 \uc758\ubbf8\ub2e4.<\/p>\n<p>\ud2b8\ub79c\uc7ad\uc158, \ud63c\ud569 \uc6cc\ud06c\ub85c\ub4dc, \ub370\uc774\ud130\uc6e8\uc5b4\ud558\uc6b0\uc2a4, \uadf8\ub798\ud504\ubd84\uc11d, \ubd80\ubb38 \uc560\ud50c\ub9ac\ucf00\uc774\uc158, \ubb38\uc11c \uc800\uc7a5, \uc0ac\ubb3c\uc778\ud130\ub137(<span class=\"word_dic en\">IoT<\/span>) \ub4f1\uc758 \ubd84\uc57c\uc5d0 \uc790\ub3d9\ud654\ub41c\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\uc6b4\uc601\uc774 \uac00\ub2a5\ud574\uc9c4\ub2e4.<\/p>\n<p>\uc624\ub77c\ud074\uc740 \uc6b0\uc120\uc801\uc73c\ub85c \ub370\uc774\ud130\uc6e8\uc5b4\ud558\uc6b0\uc2a4 \uc601\uc5ed\uc5d0 \uc790\uc728\uc8fc\ud589\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\uc5ed\ub7c9\uc744 \uc81c\uacf5\ud55c\ub2e4.<\/p>\n<p>\uc624\ub77c\ud074 \uc790\ub3d9\ud654 \ub370\uc774\ud130\uc6e8\uc5b4\ud558\uc6b0\uc2a4 \ud074\ub77c\uc6b0\ub4dc\ub294 \uace0\uc131\ub2a5, \uac00\uc6a9\uc131 \ub4f1\uc744 \uc81c\uacf5\ud558\uba74\uc11c,\u00a0<span class=\"word_dic en\">DW<\/span>\u00a0\ubc30\ud3ec \uc791\uc5c5\uc744 \uac04\uc18c\ud654\ud55c\ub2e4.\u00a0<span class=\"word_dic en\">DBA<\/span>\uac00 \uc77c\uc0c1\uc801\uc73c\ub85c \uc218\ud589\ud558\ub294 \ub9e4\ub274\uc5bc \uc5c5\ubb34\ub97c \uc904\uc774\uace0, \uc0ac\ub78c\uc758 \uc2e4\uc218\ub85c \uc778\ud55c \uc5d0\ub7ec\ub97c \uc81c\uac70\ud55c\ub2e4.<\/p>\n<p>\uc624\ub77c\ud074\uc740\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\uc804\ubb38\uac00 \uc5c6\uc774 \ud074\ub77c\uc6b0\ub4dc \uae30\ubc18\u00a0<span class=\"word_dic en\">DW<\/span>\ub97c \uad6c\uc131\ud560 \uc218 \uc788\ub294 \ub2e8\uc21c\uc131\uc744 \uac15\uc810\uc73c\ub85c \ub0b4\uc138\uc6e0\ub2e4. \ud0a4 \ubd84\uc0b0 \ubc0f \uc815\ub82c, \uc778\ub371\uc2a4 \uad6c\ucd95, \ub370\uc774\ud130 \uc7ac\ud3b8, \uc555\ucd95 \uc870\uc815 \ub4f1\uc758 \uc791\uc5c5\uc774 \uc790\ub3d9\ud654\ub41c\ub2e4\uace0 \uc124\uba85\ud588\ub2e4.<\/p>\n<p>\uc624\ub77c\ud074 \uc790\ub3d9\ud654\u00a0<span class=\"word_dic en\">DW<\/span>\u00a0\ud074\ub77c\uc6b0\ub4dc\ub294 &#8216;\ub85c\ub4dc\uc564\ub4dc\uace0(<span class=\"word_dic en\">load<\/span>\u00a0<span class=\"word_dic en\">and<\/span>\u00a0<span class=\"word_dic en\">go<\/span>)&#8217; \uc11c\ube44\uc2a4\ub85c \ubb18\uc0ac\ub41c\ub2e4. \uc0ac\uc6a9\uc790\ub294 \ud14c\uc774\ube14\uc744 \ud2b9\uc815\ud654\ud558\uace0 \ub370\uc774\ud130\ub97c \ub85c\ub4dc\ud55c \ub4a4 \uc6cc\ud06c\ub85c\ub4dc\ub97c \ub3cc\ub9ac\uae30\uae4c\uc9c0 \ubcc4\ub3c4 \ud29c\ub2dd \uc808\ucc28 \uc5c6\uc774 \uc218\ucd08 \ub9cc\uc5d0 \uc644\ub8cc\ud560 \uc218 \uc788\ub2e4\uace0 \ud55c\ub2e4.<\/p>\n<p><span class=\"end_photo_org\"><img src=\"https:\/\/i0.wp.com\/imgnews.naver.net\/image\/092\/2017\/10\/13\/0002124483_002_20171013144944326.jpg?w=640\" data-recalc-dims=\"1\" \/><\/span><\/p>\n<p>\ub798\ub9ac \uc5d8\ub9ac\uc2a8 \uc624\ub77c\ud074 \ud68c\uc7a5\uc740 \uc624\ub77c\ud074\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\ud074\ub77c\uc6b0\ub4dc\ub97c \uc37c\uc744 \uacbd\uc6b0 \uc544\ub9c8\uc874\uc6f9\uc11c\ube44\uc2a4(<span class=\"word_dic en\">AWS<\/span>)\uc5d0\uc11c \uc624\ub77c\ud074\u00a0<span class=\"word_dic en\">DB<\/span>\ub97c \uc6b4\uc601\ud560 \ub54c\ubcf4\ub2e4 \ub354 \uc800\ub834\ud55c \ube44\uc6a9\uc744 \ub4e4\uc778\ub2e4\uace0 \uac15\uc870\ud588\ub2e4. \uadf8\ub294\u00a0<span class=\"word_dic en\">AWS<\/span>\ub97c \uc4f8 \uacbd\uc6b0 \uc624\ub77c\ud074 \ud074\ub77c\uc6b0\ub4dc \ub300\ube44 5-8\ubc30 \ube44\uc2f8\ub2e4\uace0 \uc8fc\uc7a5\ud588\ub2e4. \uac19\uc740 \ubd84\uc11d \uc791\uc5c5\uc744 \uc624\ub77c\ud074 \ud074\ub77c\uc6b0\ub4dc\uc11c \ub354 \ube68\ub9ac \ucc98\ub9ac\ud558\ubbc0\ub85c \ube44\uc6a9\ub3c4 \uc904\uc5b4\ub4e0\ub2e4\ub294 \uac83\uc774\ub2e4.\u00a0<span class=\"word_dic en\">AWS<\/span>\uc758 \ub370\uc774\ud130\uc6e8\uc5b4\ud558\uc6b0\uc2a4 \uc11c\ube44\uc2a4\uc778 \ub808\ub4dc\uc2dc\ud504\ud2b8\uc758 \uacbd\uc6b0 \uc624\ub77c\ud074 \ud074\ub77c\uc6b0\ub4dc \uc870\ud569\ubcf4\ub2e4 9-15\ubc30 \ube44\uc2f8\ub2e4\uace0\ub3c4 \uac15\uc870\ud588\ub2e4.<\/p>\n<p>\uc544\ub9c8\uc874\uc740\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\uad00\ub9ac \uc778\ub825\uc744 \ud544\uc694\ub85c \ud558\uc9c0\ub9cc, \uc624\ub77c\ud074 \ud074\ub77c\uc6b0\ub4dc\ub294\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\uc778\ub825\uc774 \ud544\uc694\uc5c6\ub2e4\ub294 \uc810\ub3c4 \ub367\ubd99\uc600\ub2e4. \ub808\ub4dc\uc2dc\ud504\ud2b8 \ube44\uc6a9\uc758 \uc808\ubc18 \uc808\uac10\uc744 \ubcf4\uc7a5\ud55c\ub2e4\uace0\ub3c4 \uc124\uba85\ud588\ub2e4.<\/p>\n<p><span class=\"end_photo_org\"><img src=\"https:\/\/i0.wp.com\/imgnews.naver.net\/image\/092\/2017\/10\/13\/0002124483_003_20171013144944355.jpg?w=640\" data-recalc-dims=\"1\" \/><\/span><\/p>\n<p><span class=\"end_photo_org\"><em class=\"img_desc\">\uc624\ub77c\ud074<span class=\"word_dic en\">DB<\/span>\uc640 \uc624\ub77c\ud074 \ud074\ub77c\uc6b0\ub4dc \uc870\ud569\u00a0<span class=\"word_dic en\">VS<\/span>. \uc544\ub9c8\uc874\uc6f9\uc11c\ube44\uc2a4(<span class=\"word_dic en\">AWS<\/span>)\uc640 \uc624\ub77c\ud074\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\uc870\ud569 \uc2dc \ubcf4\ud5d8\ubd84\uc57c \ubd84\uc11d \uc131\ub2a5 \ube44\uad50(\uc790\ub8cc:\uc624\ub77c\ud074)<\/em><\/span><\/p>\n<p>\uc624\ub77c\ud074 \ub370\uc774\ud130\uc6e8\uc5b4\ud558\uc6b0\uc2a4 \ud074\ub77c\uc6b0\ub4dc\uc758 \uc790\ub3d9\ud654 \uae30\ub2a5\uc740 \uc62c\ud574 12\uc6d4\uc911 \uc11c\ube44\uc2a4\ub97c \uc2dc\uc791\ud55c\ub2e4.\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\uc790\ub3d9\ud654 \uae30\ub2a5\uc740\u00a0<span class=\"word_dic en\">OLTP<\/span>\ub97c \ube44\ub86f\ud55c \ub2e4\uc591\ud55c \uc6cc\ud06c\ub85c\ub4dc\ub85c \uc810\uc9c4\uc801\uc73c\ub85c \uc801\uc6a9\ub41c\ub2e4. \uc624\ub77c\ud074\u00a0<span class=\"word_dic en\">DB<\/span>\u00a018c\ub294 \ub0b4\ub144 6\uc6d4\u00a0<span class=\"word_dic en\">OLTP<\/span>\u00a0\ubd84\uc57c\ubd80\ud130 \uc0ac\uc6a9\uac00\ub2a5\ud574\uc9c8 \uc608\uc815\uc774\ub2e4.<\/p>\n<p><span class=\"word_dic en\">DB<\/span>\u00a0\uc790\ub3d9\ud654\ub97c \ud65c\uc6a9\ud558\ub824\uba74 \uc624\ub77c\ud074 \ud074\ub77c\uc6b0\ub4dc\ub098 \ud074\ub77c\uc6b0\ub4dc\uc573\ucee4\uc2a4\ud1a0\uba38\ub97c \uc0ac\uc6a9\ud574\uc57c \ud55c\ub2e4. \uc624\ub77c\ud074 \ud074\ub77c\uc6b0\ub4dc\uc573\ucee4\uc2a4\ud1a0\uba38\ub294 \uc624\ub77c\ud074 \uc7a5\ube44\uc640 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uc784\ub300\ud574 \uae30\uc5c5 \ub370\uc774\ud130\uc13c\ud130 \ub0b4\ubd80\uc5d0 \uc124\uce58, \uc0ac\uc6a9\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n<p>\ub798\ub9ac \uc5d8\ub9ac\uc2a8 \ud68c\uc7a5\uc740 \uae30\uc870\uc5f0\uc124 \ub0b4\ub0b4 \uc790\ub3d9\ud654\uc5d0 \ub530\ub77c \uc778\ub825 \ube44\uc6a9\uc744 \uc5c6\uc568 \uc218 \uc788\ub2e4\ub294 \uc810\uc744 \uc5b8\uae09\ud588\ub2e4.\u00a0<span class=\"word_dic en\">DBA<\/span>\u00a0\uc778\ub825\uc774 \uc6d0\ud65c\ud55c \uc6b4\uc601\ub3c4 \ucc45\uc784\uc9c0\uc9c0\ub9cc, \uc0ac\ub78c\uc758 \uc2e4\uc218\uc5d0 \ub530\ub978 \ube44\uc6a9\ub3c4 \uc720\ubc1c\ud55c\ub2e4\ub294 \uc810\ub3c4 \ub4e4\uc5c8\ub2e4.<\/p>\n<p>\uc624\ub77c\ud074\uc758\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\uc790\ub3d9\ud654 \uae30\ub2a5\uc73c\ub85c \uae30\uc5c5\uc5d0\uc11c \uc8fc\uc694 \uc704\uce58\ub97c \ucc28\uc9c0\ud558\ub358\u00a0<span class=\"word_dic en\">DBA<\/span>\u00a0\uc778\ub825\uc758 \uc785\uc9c0\uc5d0\ub3c4 \ubcc0\ud654\uac00 \uc608\uc0c1\ub41c\ub2e4. \uc624\ub77c\ud074 \ud074\ub77c\uc6b0\ub4dc\ub85c\u00a0<span class=\"word_dic en\">DB<\/span>\ub97c \uc774\ub3d9\ud558\uba74 \uc804\ud1b5\uc801\uc778\u00a0<span class=\"word_dic en\">DBA<\/span>\u00a0\uc5c5\ubb34\uac00 \ub300\ud3ed \ucd95\uc18c\ub41c\ub2e4. \uc624\ub77c\ud074\uc740 \uc774\uc5d0 \ub300\ud574\u00a0<span class=\"word_dic en\">DBA<\/span>\uac00 \ud074\ub77c\uc6b0\ub4dc \uc6b4\uc601\uc790\ub85c \ubcc0\ubaa8\ud574\uc57c \ud55c\ub2e4\uace0 \ubd80\uc5f0\ud588\ub2e4.<\/p>\n<p>\ub2f9\uc7a5\u00a0<span class=\"word_dic en\">DBA<\/span>\ub780 \uc9c1\uad70\uc774 \uc704\uae30\uc5d0 \ucc98\ud558\uc9c4 \uc54a\uc744 \uac83\uc73c\ub85c \uc810\uccd0\uc9c4\ub2e4. \uae30\uc5c5\u00a0<span class=\"word_dic en\">IT<\/span>\u00a0\ud658\uacbd\uc5d0\uc11c\u00a0<span class=\"word_dic en\">DB<\/span>\uac00 \ub2e4\uc591\ud55c \uc6cc\ud06c\ub85c\ub4dc\ub97c \ub4b7\ubc1b\uce68\ud558\uae30 \ub54c\ubb38\uc5d0 \uc644\uc804\ud55c \uc790\ub3d9\ud654\uae4c\uc9c0 \ub9ce\uc740 \uc2dc\uc77c\uc774 \uac78\ub9b4 \uac83\uc774\ub780 \uc804\ub9dd\uc774\ub2e4. \ud328\uce58, \uc5c5\uadf8\ub808\uc774\ub4dc, \uc131\ub2a5 \ud29c\ub2dd\uc744 \uc790\ub3d9\ud654\ud558\ub354\ub77c\ub3c4,\u00a0<span class=\"word_dic en\">DB<\/span>\u00a0\ub514\uc790\uc778, \ub370\uc774\ud130 \ubd84\uc11d, \ub370\uc774\ud130 \uc815\ucc45, \ubcf4\uc548 \ub4f1\uc740 \uc0ac\ub78c\uc758 \uc5c5\ubb34\ub85c \ub0a8\uc744 \uac83\uc774\ub780 \uc598\uae30\ub2e4. \ub2e4\ub9cc, \ubd84\uc11d, \uac1c\ubc1c \ub4f1 \uae30\uc874\uc5d0 \ud558\uc9c0 \uc54a\ub358 \uc5c5\ubb34\uc601\uc5ed\uc73c\ub85c \uc5ed\ub7c9\uc744 \ud655\ub300\ud574\uc57c \ud560 \uc2dc\uc810\uc774\ub77c\ub294 \uc9c0\uc801\uc774 \ub098\uc628\ub2e4.<\/p>\n<p>\ub798\ub9ac \uc5d8\ub9ac\uc2a8 \ud68c\uc7a5\uc740 &#8220;\uc624\ub77c\ud074\u00a0<span class=\"word_dic en\">DB<\/span>\ub294 \uc778\uac04\uc758 \uac1c\uc785\uc774 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \uc778\uac04\uc758 \uc624\ub958\ub3c4 \uc5c6\ub2e4&#8221;\uba70 &#8220;\uba38\uc2e0\ub7ec\ub2dd\uc740 \uc624\ub79c \uc2dc\uac04 \uc6b0\ub9ac\uac00 \ud574\uc628 \uac83 \uac00\uc6b4\ub370 \uac00\uc7a5 \uc911\uc694\ud558\ub2e4&#8221;\uace0 \uac15\uc870\ud588\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p>http:\/\/news.naver.com\/main\/read.nhn?mode=LSD&#038;mid=sec&#038;oid=092&#038;aid=0002124483&#038;sid1=001<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc624\ub77c\ud074\uc774 \uc804\uc138\uacc4 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uad00\ub9ac\uc790(DBA)\ub97c \uae34\uc7a5\uc2dc\ud0a4\ub294 \uae30\uc220\uc744 \uc120\ubcf4\uc600\ub2e4.\u00a0DBA\uc758 \uc5c5\ubb34\ub97c \ub300\ud3ed \uc904\uc774\ub294 \uc790\uc728\uc8fc\ud589\u00a0DB\ub2e4. \uc624\ub77c\ud074\uc740 \uc774\ub2ec\ucd08 \ubbf8\uad6d 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