{"id":213,"date":"2022-06-22T17:24:04","date_gmt":"2022-06-22T08:24:04","guid":{"rendered":"https:\/\/dozzing.kr\/wordpress\/?p=213"},"modified":"2025-10-24T11:56:16","modified_gmt":"2025-10-24T02:56:16","slug":"mysql%ec%a1%b0%ea%b1%b4%ec%97%90-%eb%b6%80%ed%95%a9%ed%95%98%eb%8a%94-%ec%a4%91%ea%b3%a0%ea%b1%b0%eb%9e%98-%eb%8c%93%ea%b8%80-%ec%a1%b0%ed%9a%8c%ed%95%98%ea%b8%b0%e2%ad%90-%ed%94%84%eb%a1%9c","status":"publish","type":"post","link":"https:\/\/blog.dozzing.kr\/?p=213","title":{"rendered":"[MYSQL]\uc870\uac74\uc5d0 \ubd80\ud569\ud558\ub294 \uc911\uace0\uac70\ub798 \ub313\uae00 \uc870\ud68c\ud558\uae30\u2b50 – \ud504\ub85c\uadf8\ub798\uba38\uc2a4"},"content":{"rendered":"

\ud83d\udcab \ubb38\uc81c<\/h2>\n

\"\"<\/a>
\n\"\"<\/a>
\n\u00a0<\/p>\n

\ud83d\udcab CODE<\/h2>\n
SELECT a.TITLE, a.BOARD_ID, b.REPLY_ID, b.WRITER_ID, b.CONTENTS, DATE_FORMAT(b.CREATED_DATE, '%Y-%m-%d') AS CREATED_DATE\nFROM USED_GOODS_BOARD a \nJOIN USED_GOODS_REPLY b ON a.BOARD_ID = b.BOARD_ID\nWHERE YEAR(a.CREATED_DATE) = 2022 AND MONTH(a.CREATED_DATE) = 10\nORDER BY b.CREATED_DATE asc, a.TITLE asc;\n<\/code><\/pre>\n
\u00a0<\/p>\n
\ud83d\udcab \ud480\uc774 \uc870\uac74<\/h2>\n
1. 2022\ub144 10\uc6d4\uc5d0 \uc791\uc131\ub41c \uac8c\uc2dc\uae00<\/h5>\n
2. \ub313\uae00 \uc791\uc131\uc77c\uc744 \uae30\uc900\uc73c\ub85c \uc624\ub984\ucc28\uc21c \uc815\ub82c<\/h5>\n
3. \ub313\uae00 \uc791\uc131\uc77c\uc774 \uac19\ub2e4\uba74 \uac8c\uc2dc\uae00 \uc81c\ubaa9\uc744 \uae30\uc900\uc73c\ub85c \uc624\ub984\ucc28\uc21c \uc815\ub82c<\/h5>\n
\u00a0<\/p>\n
\ud83d\udcab \ud480\uc774<\/h2>\n
1. SELECT a.TITLE, a.BOARD_ID, b.REPLY_ID, b.WRITER_ID, b.CONTENTS, DATE_FORMAT(b.CREATED_DATE, '%Y-%m-%d') AS CREATED_DATE<\/h5>\n
    \n
  • USED_GOODS_BOARD \ud14c\uc774\ube14\uc758 \uac8c\uc2dc\uae00 \uc81c\ubaa9 (TITLE), \uac8c\uc2dc\uae00 ID (BOARD_ID) \uc870\ud68c<\/li>\n
  • USED_GOODS_REPLY \ud14c\uc774\ube14\uc758 \ub313\uae00 ID (REPLY_ID), \uc791\uc131\uc790 ID (WRITER_ID), \ub313\uae00 \ub0b4\uc6a9(CONTENTS), \ub313\uae00 \uc791\uc131\uc77c (CREATED_DATE) \uc870\ud68c<\/li>\n<\/ul>\n
    2. DATE_FORMAT(b.CREATED_DATE, '%Y-%m-%d') AS CREATED_DATE<\/h5>\n
      \n
    • DATE_FORMAT \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc791\uc131\uc77c\uc774 \ub144\ub3c4-\uc6d4-\uc77c \uae4c\uc9c0\ub9cc \ucd9c\ub825 \ub418\ub3c4\ub85d \ubcc0\uacbd<\/li>\n
    • AS\ub97c \uc0ac\uc6a9\ud558\uc5ec \uceec\ub7fc\uba85\uc5d0 CREATED_DATE\ub85c \ubcc4\uce6d \uc8fc\uae30<\/li>\n<\/ul>\n
      3. FROM USED_GOODS_BOARD a<\/h5>\n
        \n
      • USED_GOODS_BOARD \ud14c\uc774\ube14 \ubcc4\uce6d\uc744 a\ub85c \uc9c0\uc815<\/li>\n<\/ul>\n
        4. JOIN USED_GOODS_REPLY b ON a.BOARD_ID = b.BOARD_ID<\/h5>\n
          \n
        • JOIN \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub2e4\ub978 \ud14c\uc774\ube14(USED_GOODS_REPLY) \uc870\uc778<\/li>\n
        • \uc870\uc778 \uc870\uac74 : ON a.BOARD_ID = b.BOARD_ID<\/li>\n
        • USED_GOODS_REPLY \ud14c\uc774\ube14 \ubcc4\uce6d b\ub85c \uc9c0\uc815<\/li>\n<\/ul>\n
          5. WHERE YEAR(a.CREATED_DATE) = 2022 AND MONTH(a.CREATED_DATE) = 10<\/h5>\n
            \n
          • \uc870\uac74 : \uae00 \uc791\uc131\uc77c(a.CREATED_DATE) \uc911 \ub144\ub3c4\uac00 2022\ub144\ub3c4 \uc774\uace0, \uc6d4\uc774 10\uc6d4\uc778 \uceec\ub7fc<\/li>\n<\/ul>\n
            6. ORDER BY b.CREATED_DATE asc, a.TITLE asc;<\/h5>\n
              \n
            • ORDER BY\ub97c \uc774\uc6a9\ud558\uc5ec \ub313\uae00 \uc791\uc131\uc77c(b.CREATED_DATE) \uae30\uc900\uc73c\ub85c \uc624\ub984\ucc28\uc21c, \ub313\uae00 \uc791\uc131\uc77c\uc774 \uac19\ub2e4\uba74 \uac8c\uc2dc\uae00 \uc81c\ubaa9(TITLE)\uc744 \uae30\uc900\uc73c\ub85c \uc624\ub984\ucc28\uc21c \uc815\ub82c<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
              \ud83d\udcab \ubb38\uc81c \u00a0 \ud83d\udcab CODE SELECT a.TITLE, a.BOARD_ID, b.REPLY_ID, b.WRITER_ID, b.CONTENTS, DATE_FORMAT(b.CREATED_DATE, ‘%Y-%m-%d’) AS CREATED_DATE FROM USED_GOODS_BOARD a JOIN USED_GOODS_REPLY b ON a.BOARD_ID = b.BOARD_ID WHERE YEAR(a.CREATED_DATE) = 2022 AND MONTH(a.CREATED_DATE) = 10 ORDER BY b.CREATED_DATE asc, a.TITLE asc; \u00a0 \ud83d\udcab \ud480\uc774 \uc870\uac74 1. 2022\ub144 10\uc6d4\uc5d0 \uc791\uc131\ub41c \uac8c\uc2dc\uae00 2. \ub313\uae00 \uc791\uc131\uc77c\uc744 \uae30\uc900\uc73c\ub85c \uc624\ub984\ucc28\uc21c \uc815\ub82c 3. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,9],"tags":[26,12,15,10],"class_list":["post-213","post","type-post","status-publish","format-standard","hentry","category-database","category-sql","tag-26","tag-mysql","tag-sql","tag-10"],"yoast_head":"\n[MYSQL]\uc870\uac74\uc5d0 \ubd80\ud569\ud558\ub294 \uc911\uace0\uac70\ub798 \ub313\uae00 \uc870\ud68c\ud558\uae30\u2b50 - \ud504\ub85c\uadf8\ub798\uba38\uc2a4 - Dozzing World<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.dozzing.kr\/?p=213\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[MYSQL]\uc870\uac74\uc5d0 \ubd80\ud569\ud558\ub294 \uc911\uace0\uac70\ub798 \ub313\uae00 \uc870\ud68c\ud558\uae30\u2b50 - \ud504\ub85c\uadf8\ub798\uba38\uc2a4 - Dozzing World\" \/>\n<meta property=\"og:description\" content=\"\ud83d\udcab \ubb38\uc81c \u00a0 \ud83d\udcab CODE SELECT a.TITLE, a.BOARD_ID, b.REPLY_ID, b.WRITER_ID, b.CONTENTS, DATE_FORMAT(b.CREATED_DATE, '%Y-%m-%d') AS CREATED_DATE FROM USED_GOODS_BOARD a JOIN USED_GOODS_REPLY b ON a.BOARD_ID = b.BOARD_ID WHERE YEAR(a.CREATED_DATE) = 2022 AND MONTH(a.CREATED_DATE) = 10 ORDER BY b.CREATED_DATE asc, a.TITLE asc; \u00a0 \ud83d\udcab \ud480\uc774 \uc870\uac74 1. 2022\ub144 10\uc6d4\uc5d0 \uc791\uc131\ub41c \uac8c\uc2dc\uae00 2. \ub313\uae00 \uc791\uc131\uc77c\uc744 \uae30\uc900\uc73c\ub85c \uc624\ub984\ucc28\uc21c \uc815\ub82c 3. 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