{"id":2173,"date":"2025-04-27T09:01:25","date_gmt":"2025-04-27T00:01:25","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/04\/27\/2173\/"},"modified":"2025-04-27T09:01:25","modified_gmt":"2025-04-27T00:01:25","slug":"%ea%b9%80%ec%98%81%ed%8f%89%ec%83%9d%ea%b5%90%ec%9c%a1%ec%9b%90-%eb%8d%b0%ec%9d%b4%ed%84%b0%eb%b2%a0%ec%9d%b4%ec%8a%a4-a%ea%b3%bc%ec%a0%9c","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/04\/27\/2173\/","title":{"rendered":"[\uae40\uc601\ud3c9\uc0dd\uad50\uc721\uc6d0] \ub370\uc774\ud130\ubca0\uc774\uc2a4 A+\uacfc\uc81c"},"content":{"rendered":"

<\/p>\n

\ubaa9\ucc28<\/strong><\/p>\n

\u2160. \uc11c\ub860
\n 1. \uc11c\ub860 <\/p>\n

\u2161. \ubcf8\ub860
\n 1. ER\ub2e4\uc774\uc5b4\uadf8\ub7a8 \uc791\uc131<\/p>\n

\u2162. \uacb0\ub860
\n 1. \uc2dc\uc0ac\uc810 \ubc0f \uc758\uacac<\/p>\n

\u2163. \ucc38\uace0\ubb38\ud5cc \ubc0f \ubd80\ub85d
\n 1. \ucc38\uc870<\/p>\n

\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n

\u2160. \uc11c\ub860
\n 1. ER\ub2e4\uc774\uc5b4\uadf8\ub7a8\uc774\ub780 \uad6d\ub0b4 \ub3c4\uc11c : \uac15\uc724\uc11d \uc678(2020), \u300e\uc815\ubcf4\ucc98\ub9ac\uae30\uc0ac\u300f, \uc2dc\ub098\uacf5<\/p>\n

E-R (Entity-Relationship, \uac1c\uccb4-\uad00\uacc4) \ubaa8\ub378\uc758 \uac1c\uc694
\n– \uac1c\ub150\uc801 \ub370\uc774\ud130 \ubaa8\ub378\uc758 \ub300\ud45c\uc801 \ubaa8\ub378
\n– \ud53c\ud130 \uccb8\uc5d0 \uc758\ud574\uc11c \uc81c\uc2dc\ub428
\n– \uac1c\uccb4 \uc0ac\uc774\uc758 \uad00\uacc4\ub97c \ub17c\ub9ac\uc801 \uac1c\ub150 \ub370\uc774\ud130\ub85c \ud45c\ud604\ud558\uae30 \uc704\ud568
\n– \ub370\uc774\ud130\ub97c \ubd84\ub958\ud558\uc5ec \uac1c\uccb4(Entity), \uc18d\uc131(Attribute), \uad00\uacc4(Relationship) \uc138 \uac1c\ub85c \ub098\ud0c0\ub0c4
\n– E-R \ub2e4\uc774\uc5b4\uadf8\ub7a8\uc73c\ub85c \ub098\ud0c0\ub0b4\uba70 1:1, 1:N, N:M \ub4f1\uc758 \uad00\uacc4\ub97c \ubb34\uc81c\ud55c\uc73c\ub85c \ud45c\uc2dc \uac00\ub2a5\ud568<\/p>\n

E-R \ub2e4\uc774\uc5b4\uadf8\ub7a8
\n– E-R \ubaa8\ub378\uc758 \uc544\uc774\ub514\uc5b4\ub97c \uc774\ud574\ud558\uae30 \uc27d\ub3c4\ub85d \uae30\ud638\ub97c \uc774\uc6a9\ud574 \uba85\uc2dc\uc801\uc73c\ub85c \ub098\ud0c0\ub0b8 \uadf8\ub9bc
\n– E-R \ub2e4\uc774\uc5b4\uadf8\ub7a8 \ud45c\uae30\ubc95\uc740 \ud53c\ud130 \uccb8 \ud45c\uae30\ubc95, \ubc14\ucee4 \ud45c\uae30\ubc95, \uc815\ubcf4 \uacf5\ud559 \ud45c\uae30\ubc95 \ub4f1\uc774 \uc874\uc7ac\ud568<\/p>\n

\uac1c\uccb4(Entity)
\n\ub2e8\ub3c5\uc73c\ub85c \uc874\uc7ac\ud558\ub294 \uac1d\uccb4
\n\ub2e4\uc591\ud55c \uc18d\uc131\uc744 \uac00\uc9c0\uba70, \uac19\uc740 \uac1c\uccb4\ub294 \uc874\uc7ac\ud560 \uc218 \uc5c6\ub2e4.
\n\ub2e4\uc774\uc5b4\uadf8\ub7a8 \ub0b4\uc5d0\uc11c \uc0ac\uac01\ud615\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\ub2e4.
\n\uc18d\uc131(Attribute)
\n\uac1c\uccb4\uac00 \uac00\uc9c0\ub294 \ud2b9\uc815\ud55c \ud2b9\uc9d5. \uc989, \uc18d\uc131.
\n\ub2e4\uc774\uc5b4\uadf8\ub7a8 \ub0b4\uc5d0\uc11c \ud0c0\uc6d0 \ubaa8\uc591\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\ub2e4.
\n\uad00\uacc4(Relationship)
\n\uac01 \uac1c\uccb4\ub4e4\uc774 \uac00\uc9c0\ub294 \uad00\uacc4
\n\uac01 \uac1c\uccb4\ub4e4\uc740 1:N,1:1,N:M \uad00\uacc4\ub97c \uac00\uc9c8 \uc218 \uc788\uc73c\uba70, \ub9c8\ub984\ubaa8\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\ub2e4.<\/p>\n

\ucd9c\ucc98 : \ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\ubaa9\ucc28 \u2160. \uc11c\ub860 1. \uc11c\ub860 \u2161. \ubcf8\ub860 1. ER\ub2e4\uc774\uc5b4\uadf8\ub7a8 \uc791\uc131 \u2162. \uacb0\ub860 1. \uc2dc\uc0ac\uc810 \ubc0f \uc758\uacac \u2163. \ucc38\uace0\ubb38\ud5cc \ubc0f \ubd80\ub85d 1. \ucc38\uc870 \ubcf8\ubb38\ub0b4\uc6a9 \u2160. \uc11c\ub860 1. ER\ub2e4\uc774\uc5b4\uadf8\ub7a8\uc774\ub780 \uad6d\ub0b4 \ub3c4\uc11c : \uac15\uc724\uc11d \uc678(2020), \u300e\uc815\ubcf4\ucc98\ub9ac\uae30\uc0ac\u300f, \uc2dc\ub098\uacf5 E-R (Entity-Relationship, \uac1c\uccb4-\uad00\uacc4) \ubaa8\ub378\uc758 \uac1c\uc694 – \uac1c\ub150\uc801 \ub370\uc774\ud130 \ubaa8\ub378\uc758 \ub300\ud45c\uc801 \ubaa8\ub378 – \ud53c\ud130 \uccb8\uc5d0 \uc758\ud574\uc11c \uc81c\uc2dc\ub428 – \uac1c\uccb4 \uc0ac\uc774\uc758 \uad00\uacc4\ub97c \ub17c\ub9ac\uc801 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[4027,4029,4028,1084],"class_list":["post-2173","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-4027","tag-a4-5","tag-4028","tag-1084"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/2173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=2173"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/2173\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=2173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=2173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=2173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}