{"id":476666,"date":"2023-08-09T07:31:20","date_gmt":"2023-08-09T07:31:20","guid":{"rendered":""},"modified":"2023-09-05T11:13:12","modified_gmt":"2023-09-05T11:13:12","slug":"data-mapping","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/data-mapping\/","title":{"rendered":"\u00c1nh x\u1ea1 d\u1eef li\u1ec7u"},"content":{"rendered":"<p>\u00c1nh x\u1ea1 d\u1eef li\u1ec7u l\u00e0 m\u1ed9t quy tr\u00ecnh quan tr\u1ecdng trong nhi\u1ec1u ho\u1ea1t \u0111\u1ed9ng qu\u1ea3n l\u00fd d\u1eef li\u1ec7u nh\u1eb1m thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c m\u00f4 h\u00ecnh d\u1eef li\u1ec7u ri\u00eang bi\u1ec7t. \u0110\u00f3 l\u00e0 m\u1ed9t quy tr\u00ecnh thi\u1ebft y\u1ebfu cho ph\u00e9p d\u1eef li\u1ec7u t\u1eeb m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1eb7c \u0111\u1ecbnh d\u1ea1ng \u0111\u01b0\u1ee3c hi\u1ec3u, d\u1ecbch v\u00e0 chuy\u1ec3n sang h\u1ec7 th\u1ed1ng ho\u1eb7c \u0111\u1ecbnh d\u1ea1ng kh\u00e1c. Ch\u1ee9c n\u0103ng n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi h\u1ee3p nh\u1ea5t c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u kh\u00e1c nhau ho\u1eb7c khi c\u1ed1 g\u1eafng x\u00e2y d\u1ef1ng k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00e1c nhau.<\/p>\n<h2>S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a \u00e1nh x\u1ea1 d\u1eef li\u1ec7u v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean c\u1ee7a n\u00f3<\/h2>\n<p>Kh\u00e1i ni\u1ec7m \u00e1nh x\u1ea1 d\u1eef li\u1ec7u c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb nh\u1eefng ng\u00e0y \u0111\u1ea7u c\u1ee7a c\u00f4ng ngh\u1ec7 c\u01a1 s\u1edf d\u1eef li\u1ec7u, n\u01a1i vi\u1ec7c d\u1ecbch d\u1eef li\u1ec7u gi\u1eefa c\u00e1c \u0111\u1ecbnh d\u1ea1ng v\u00e0 h\u1ec7 th\u1ed1ng kh\u00e1c nhau l\u00e0 r\u1ea5t quan tr\u1ecdng. Vi\u1ec7c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn b\u1ea3n \u0111\u1ed3 d\u1eef li\u1ec7u l\u1ea7n \u0111\u1ea7u ti\u00ean c\u00f3 t\u1eeb nh\u1eefng n\u0103m 1960, tr\u00f9ng v\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u01a1 s\u1edf d\u1eef li\u1ec7u. Nhu c\u1ea7u l\u1eadp b\u1ea3n \u0111\u1ed3 d\u1eef li\u1ec7u c\u00e0ng tr\u1edf n\u00ean r\u00f5 r\u00e0ng h\u01a1n v\u1edbi s\u1ef1 gia t\u0103ng c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ea7n m\u1ec1m, \u0111\u00f2i h\u1ecfi d\u1eef li\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c truy\u1ec1n li\u1ec1n m\u1ea1ch gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng v\u00e0 trong khu\u00f4n kh\u1ed5 c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng duy nh\u1ea5t. Qua nhi\u1ec1u n\u0103m, quy tr\u00ecnh n\u00e0y \u0111\u00e3 ph\u00e1t tri\u1ec3n t\u1eeb m\u1ed9t c\u00f4ng vi\u1ec7c th\u1ee7 c\u00f4ng, t\u1ebb nh\u1ea1t th\u00e0nh m\u1ed9t c\u00f4ng vi\u1ec7c t\u1ef1 \u0111\u1ed9ng, v\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 thu\u1eadt to\u00e1n l\u1eadp b\u1ea3n \u0111\u1ed3 ph\u1ee9c t\u1ea1p.<\/p>\n<h2>M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1: \u00c1nh x\u1ea1 d\u1eef li\u1ec7u l\u00e0 g\u00ec<\/h2>\n<p>\u00c1nh x\u1ea1 d\u1eef li\u1ec7u l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a nhi\u1ec7m v\u1ee5 t\u00edch h\u1ee3p d\u1eef li\u1ec7u. \u0110\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh trong \u0111\u00f3 c\u00e1c tr\u01b0\u1eddng d\u1eef li\u1ec7u t\u1eeb h\u1ec7 th\u1ed1ng ngu\u1ed3n ho\u1eb7c c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c kh\u1edbp v\u1edbi c\u00e1c tr\u01b0\u1eddng t\u01b0\u01a1ng \u1ee9ng trong h\u1ec7 th\u1ed1ng ho\u1eb7c c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u00edch. V\u1ec1 b\u1ea3n ch\u1ea5t, n\u00f3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t &#039;h\u01b0\u1edbng d\u1eabn d\u1ecbch&#039;, h\u01b0\u1edbng d\u1eabn c\u00e1ch chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c thao t\u00e1c d\u1eef li\u1ec7u t\u1eeb h\u1ec7 th\u1ed1ng ngu\u1ed3n cho ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u tr\u00fac ho\u1eb7c \u0111\u1ecbnh d\u1ea1ng c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u00edch.<\/p>\n<p>Qu\u00e1 tr\u00ecnh \u00e1nh x\u1ea1 d\u1eef li\u1ec7u bao g\u1ed3m nhi\u1ec1u b\u01b0\u1edbc kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ol>\n<li>\n<p><strong>X\u00e1c \u0111\u1ecbnh h\u1ec7 th\u1ed1ng ngu\u1ed3n v\u00e0 m\u1ee5c ti\u00eau:<\/strong> B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong vi\u1ec7c \u00e1nh x\u1ea1 d\u1eef li\u1ec7u l\u00e0 x\u00e1c \u0111\u1ecbnh h\u1ec7 th\u1ed1ng ngu\u1ed3n v\u00e0 h\u1ec7 th\u1ed1ng \u0111\u00edch. H\u1ec7 th\u1ed1ng ngu\u1ed3n l\u00e0 n\u01a1i l\u01b0u tr\u1eef d\u1eef li\u1ec7u g\u1ed1c, c\u00f2n h\u1ec7 th\u1ed1ng \u0111\u00edch l\u00e0 n\u01a1i d\u1eef li\u1ec7u c\u1ea7n \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i.<\/p>\n<\/li>\n<li>\n<p><strong>X\u00e1c \u0111\u1ecbnh tr\u01b0\u1eddng d\u1eef li\u1ec7u:<\/strong> B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c tr\u01b0\u1eddng d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 trong c\u1ea3 h\u1ec7 th\u1ed1ng ngu\u1ed3n v\u00e0 h\u1ec7 th\u1ed1ng \u0111\u00edch. C\u00e1c tr\u01b0\u1eddng n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m nhi\u1ec1u lo\u1ea1i d\u1eef li\u1ec7u kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00ean, \u0111\u1ecba ch\u1ec9, id email v\u00e0 d\u1eef li\u1ec7u li\u00ean quan kh\u00e1c.<\/p>\n<\/li>\n<li>\n<p><strong>T\u1ea1o quy t\u1eafc \u00e1nh x\u1ea1:<\/strong> Sau khi x\u00e1c \u0111\u1ecbnh c\u00e1c tr\u01b0\u1eddng d\u1eef li\u1ec7u, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 t\u1ea1o c\u00e1c quy t\u1eafc \u00e1nh x\u1ea1 x\u00e1c \u0111\u1ecbnh c\u00e1ch chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u t\u1eeb h\u1ec7 th\u1ed1ng ngu\u1ed3n khi n\u00f3 \u0111\u01b0\u1ee3c chuy\u1ec3n sang h\u1ec7 th\u1ed1ng \u0111\u00edch.<\/p>\n<\/li>\n<li>\n<p><strong>Ki\u1ec3m tra v\u00e0 x\u00e1c nh\u1eadn:<\/strong> Sau khi c\u00e1c quy t\u1eafc \u00e1nh x\u1ea1 \u0111\u01b0\u1ee3c t\u1ea1o, ch\u00fang c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u00e0 x\u00e1c th\u1ef1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i v\u00e0 chuy\u1ec3n ch\u00ednh x\u00e1c \u0111\u1ebfn h\u1ec7 th\u1ed1ng \u0111\u00edch.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u1ea5u tr\u00fac c\u1ee7a \u00e1nh x\u1ea1 d\u1eef li\u1ec7u: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/h2>\n<p>V\u1ec1 c\u1ed1t l\u00f5i, \u00e1nh x\u1ea1 d\u1eef li\u1ec7u ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean c\u00e1c quy t\u1eafc ho\u1eb7c h\u01b0\u1edbng d\u1eabn do ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c nh\u00e0 khoa h\u1ecdc d\u1eef li\u1ec7u x\u00e1c \u0111\u1ecbnh, h\u01b0\u1edbng d\u1eabn c\u00e1ch chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c d\u1ecbch d\u1eef li\u1ec7u t\u1eeb m\u1ed9t h\u1ec7 th\u1ed1ng (ngu\u1ed3n) khi n\u00f3 \u0111\u01b0\u1ee3c chuy\u1ec3n sang h\u1ec7 th\u1ed1ng kh\u00e1c (\u0111\u00edch). C\u00e1c quy t\u1eafc n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m t\u1eeb c\u00e1c h\u01b0\u1edbng d\u1eabn &#039;sao ch\u00e9p&#039; \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn c\u00e1c ph\u00e9p bi\u1ebfn \u0111\u1ed5i ph\u1ee9c t\u1ea1p h\u01a1n c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn c\u00e1c ph\u00e9p t\u00ednh, n\u1ed1i ho\u1eb7c c\u00e1c ho\u1ea1t \u0111\u1ed9ng kh\u00e1c.<\/p>\n<p>\u00c1nh x\u1ea1 d\u1eef li\u1ec7u th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng qua ba giai \u0111o\u1ea1n ch\u00ednh:<\/p>\n<ol>\n<li>\n<p><strong>Ph\u00e2n t\u00edch ngu\u1ed3n:<\/strong> Trong giai \u0111o\u1ea1n n\u00e0y, c\u1ea5u tr\u00fac v\u00e0 ng\u1eef ngh\u0129a c\u1ee7a d\u1eef li\u1ec7u ngu\u1ed3n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1.<\/p>\n<\/li>\n<li>\n<p><strong>Chuy\u1ec3n \u0111\u1ed5i:<\/strong> Giai \u0111o\u1ea1n n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c thao t\u00e1c th\u1ef1c t\u1ebf d\u1eef li\u1ec7u, d\u1ef1a tr\u00ean c\u00e1c quy t\u1eafc \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc, \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u tr\u00fac v\u00e0 y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u00edch.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110ang t\u1ea3i:<\/strong> \u1ede giai \u0111o\u1ea1n cu\u1ed1i, d\u1eef li\u1ec7u \u0111\u00e3 chuy\u1ec3n \u0111\u1ed5i s\u1ebd \u0111\u01b0\u1ee3c t\u1ea3i v\u00e0o h\u1ec7 th\u1ed1ng \u0111\u00edch.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a \u00e1nh x\u1ea1 d\u1eef li\u1ec7u<\/h2>\n<p>\u00c1nh x\u1ea1 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ph\u00e2n bi\u1ec7t:<\/p>\n<ul>\n<li><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch:<\/strong> N\u00f3 cho ph\u00e9p c\u00e1c h\u1ec7 th\u1ed1ng d\u1eef li\u1ec7u kh\u00e1c nhau giao ti\u1ebfp, cho ph\u00e9p kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c d\u1eef li\u1ec7u.<\/li>\n<li><strong>Chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u:<\/strong> N\u00f3 c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u d\u1ef1a tr\u00ean c\u00e1c quy t\u1eafc \u0111\u00e3 x\u00e1c \u0111\u1ecbnh, l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng \u0111\u00edch.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> C\u00e1c c\u00f4ng c\u1ee5 \u00e1nh x\u1ea1 d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i c\u00f3 th\u1ec3 x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn, gi\u00fap ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<\/li>\n<li><strong>X\u00e1c \u0111\u1ecbnh l\u1ed7i:<\/strong> N\u00f3 c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ef1 kh\u00e1c bi\u1ec7t ho\u1eb7c l\u1ed7i trong d\u1eef li\u1ec7u v\u00e0 gi\u00fap l\u00e0m s\u1ea1ch d\u1eef li\u1ec7u.<\/li>\n<li><strong>Quy tr\u00ecnh t\u1ef1 \u0111\u1ed9ng:<\/strong> H\u1ea7u h\u1ebft c\u00e1c c\u00f4ng c\u1ee5 \u00e1nh x\u1ea1 d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u cho ph\u00e9p \u00e1nh x\u1ea1 d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng, gi\u1ea3m s\u1ef1 can thi\u1ec7p th\u1ee7 c\u00f4ng v\u00e0 t\u0103ng hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i \u00e1nh x\u1ea1 d\u1eef li\u1ec7u<\/h2>\n<p>\u00c1nh x\u1ea1 d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh nhi\u1ec1u lo\u1ea1i d\u1ef1a tr\u00ean \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 m\u1ee9c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed5i c\u1ea7n thi\u1ebft:<\/p>\n<ol>\n<li>\n<p><strong>L\u1eadp b\u1ea3n \u0111\u1ed3 tr\u1ef1c ti\u1ebfp:<\/strong> \u0110i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn s\u1ef1 t\u01b0\u01a1ng \u1ee9ng \u0111\u01a1n gi\u1ea3n, m\u1ed9t-m\u1ed9t gi\u1eefa c\u00e1c tr\u01b0\u1eddng ngu\u1ed3n v\u00e0 \u0111\u00edch. Kh\u00f4ng c\u1ea7n chuy\u1ec3n \u0111\u1ed5i.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1eadp b\u1ea3n \u0111\u1ed3 chuy\u1ec3n \u0111\u1ed5i:<\/strong> \u0110i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn c\u00e1c ph\u00e9p bi\u1ebfn \u0111\u1ed5i ph\u1ee9c t\u1ea1p trong \u0111\u00f3 d\u1eef li\u1ec7u t\u1eeb m\u1ed9t ho\u1eb7c nhi\u1ec1u tr\u01b0\u1eddng ngu\u1ed3n \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi tr\u01b0\u1eddng \u0111\u00edch.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1eadp b\u1ea3n \u0111\u1ed3 ph\u1ee9c t\u1ea1p:<\/strong> \u0110i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng nhi\u1ec1u quy t\u1eafc ho\u1eb7c thao t\u00e1c \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u ngu\u1ed3n sang c\u1ea5u tr\u00fac \u0111\u00edch.<\/p>\n<\/li>\n<\/ol>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>M\u1ee9c \u0111\u1ed9 ph\u1ee9c t\u1ea1p<\/th>\n<th>Y\u00eau c\u1ea7u chuy\u1ec3n \u0111\u1ed5i<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u00c1nh x\u1ea1 tr\u1ef1c ti\u1ebfp<\/td>\n<td>Th\u1ea5p<\/td>\n<td>KH\u00d4NG<\/td>\n<\/tr>\n<tr>\n<td>\u00c1nh x\u1ea1 chuy\u1ec3n \u0111\u1ed5i<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>\u0110\u00fang<\/td>\n<\/tr>\n<tr>\n<td>L\u1eadp b\u1ea3n \u0111\u1ed3 ph\u1ee9c t\u1ea1p<\/td>\n<td>Cao<\/td>\n<td>\u0110\u00fang<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p trong \u00e1nh x\u1ea1 d\u1eef li\u1ec7u<\/h2>\n<p>\u00c1nh x\u1ea1 d\u1eef li\u1ec7u t\u00ecm th\u1ea5y \u1ee9ng d\u1ee5ng trong nhi\u1ec1u t\u00ecnh hu\u1ed1ng nh\u01b0 t\u00edch h\u1ee3p d\u1eef li\u1ec7u, di chuy\u1ec3n d\u1eef li\u1ec7u, l\u01b0u tr\u1eef d\u1eef li\u1ec7u v\u00e0 c\u00e1c quy tr\u00ecnh ETL (Tr\u00edch xu\u1ea5t, Chuy\u1ec3n \u0111\u1ed5i, T\u1ea3i). \u0110i\u1ec1u n\u00e0y c\u0169ng r\u1ea5t quan tr\u1ecdng trong c\u00e1c t\u00ecnh hu\u1ed1ng tu\u00e2n th\u1ee7, trong \u0111\u00f3 d\u1eef li\u1ec7u c\u1ea7n \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o ch\u00ednh x\u00e1c \u1edf c\u00e1c \u0111\u1ecbnh d\u1ea1ng c\u1ee5 th\u1ec3.<\/p>\n<p>Nh\u1eefng th\u00e1ch th\u1ee9c chung trong vi\u1ec7c \u00e1nh x\u1ea1 d\u1eef li\u1ec7u bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>\u0110\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a d\u1eef li\u1ec7u:<\/strong> D\u1eef li\u1ec7u th\u01b0\u1eddng c\u00f3 th\u1ec3 ph\u1ee9c t\u1ea1p v\u00e0 kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac, khi\u1ebfn vi\u1ec7c l\u1eadp b\u1ea3n \u0111\u1ed3 tr\u1edf th\u00e0nh m\u1ed9t nhi\u1ec7m v\u1ee5 \u0111\u1ea7y th\u00e1ch th\u1ee9c.<\/li>\n<li><strong>Kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u:<\/strong> Kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn c\u00f3 th\u1ec3 l\u00e0m ph\u1ee9c t\u1ea1p qu\u00e1 tr\u00ecnh l\u1eadp b\u1ea3n \u0111\u1ed3 v\u00e0 d\u1eabn \u0111\u1ebfn th\u1eddi gian x\u1eed l\u00fd l\u00e2u h\u01a1n.<\/li>\n<li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c d\u1eef li\u1ec7u:<\/strong> L\u1ed7i trong d\u1eef li\u1ec7u c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c l\u1eadp b\u1ea3n \u0111\u1ed3 kh\u00f4ng ch\u00ednh x\u00e1c v\u00e0 sau \u0111\u00f3 l\u00e0 ph\u00e2n t\u00edch ho\u1eb7c b\u00e1o c\u00e1o kh\u00f4ng ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n<p>S\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 l\u1eadp b\u1ea3n \u0111\u1ed3 d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i, h\u1ecdc m\u00e1y v\u00e0 tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o \u0111\u00e3 t\u1ea1o ra c\u00e1c gi\u1ea3i ph\u00e1p cho nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y. Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y c\u00f3 th\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p, kh\u00f4ng c\u00f3 c\u1ea5u tr\u00fac, x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 c\u0169ng nh\u01b0 x\u00e1c \u0111\u1ecbnh v\u00e0 s\u1eeda l\u1ed7i trong d\u1eef li\u1ec7u.<\/p>\n<h2>So s\u00e1nh \u00e1nh x\u1ea1 d\u1eef li\u1ec7u v\u1edbi c\u00e1c kh\u00e1i ni\u1ec7m t\u01b0\u01a1ng t\u1ef1<\/h2>\n<p>\u00c1nh x\u1ea1 d\u1eef li\u1ec7u c\u00f3 nh\u1eefng \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi c\u00e1c quy tr\u00ecnh qu\u1ea3n l\u00fd d\u1eef li\u1ec7u kh\u00e1c nh\u01b0ng n\u1ed5i b\u1eadt nh\u1edd c\u00e1c ch\u1ee9c n\u0103ng c\u1ee5 th\u1ec3 c\u1ee7a n\u00f3:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00dd t\u01b0\u1edfng<\/th>\n<th>Ch\u1ee9c n\u0103ng ch\u00ednh<\/th>\n<th>\u0110i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi \u00c1nh x\u1ea1 d\u1eef li\u1ec7u<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u<\/td>\n<td>S\u1eeda \u0111\u1ed5i d\u1eef li\u1ec7u \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t c\u1ea5u tr\u00fac c\u1ee5 th\u1ec3<\/td>\n<td>C\u1ea3 hai \u0111\u1ec1u li\u00ean quan \u0111\u1ebfn vi\u1ec7c thay \u0111\u1ed5i \u0111\u1ecbnh d\u1ea1ng ho\u1eb7c c\u1ea5u tr\u00fac d\u1eef li\u1ec7u<\/td>\n<\/tr>\n<tr>\n<td>Di chuy\u1ec3n d\u1eef li\u1ec7u<\/td>\n<td>Di chuy\u1ec3n d\u1eef li\u1ec7u t\u1eeb h\u1ec7 th\u1ed1ng n\u00e0y sang h\u1ec7 th\u1ed1ng kh\u00e1c<\/td>\n<td>C\u1ea3 hai \u0111\u1ec1u li\u00ean quan \u0111\u1ebfn vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u t\u1eeb ngu\u1ed3n \u0111\u1ebfn \u0111\u00edch<\/td>\n<\/tr>\n<tr>\n<td>T\u00edch h\u1ee3p d\u1eef li\u1ec7u<\/td>\n<td>K\u1ebft h\u1ee3p d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau v\u00e0o m\u1ed9t ch\u1ebf \u0111\u1ed9 xem th\u1ed1ng nh\u1ea5t<\/td>\n<td>C\u1ea3 hai \u0111\u1ec1u li\u00ean quan \u0111\u1ebfn vi\u1ec7c h\u1ee3p nh\u1ea5t d\u1eef li\u1ec7u t\u1eeb c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c nhau<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai trong l\u1eadp b\u1ea3n \u0111\u1ed3 d\u1eef li\u1ec7u<\/h2>\n<p>Khi b\u1ed1i c\u1ea3nh d\u1eef li\u1ec7u tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p h\u01a1n, vai tr\u00f2 c\u1ee7a \u00e1nh x\u1ea1 d\u1eef li\u1ec7u ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng v\u00e0 ph\u00e1t tri\u1ec3n. V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a AI v\u00e0 h\u1ecdc m\u00e1y, ch\u00fang ta c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n c\u00e1c c\u00f4ng c\u1ee5 \u00e1nh x\u1ea1 d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng, ph\u1ee9c t\u1ea1p h\u01a1n c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00e1c c\u1ea5u tr\u00fac d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. Ngo\u00e0i ra c\u00f2n c\u00f3 xu h\u01b0\u1edbng ng\u00e0y c\u00e0ng t\u0103ng v\u1ec1 \u00e1nh x\u1ea1 d\u1eef li\u1ec7u theo th\u1eddi gian th\u1ef1c, \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi c\u00e1c c\u00f4ng ngh\u1ec7 truy\u1ec1n ph\u00e1t ti\u00ean ti\u1ebfn, cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i v\u00e0 t\u1ea3i d\u1eef li\u1ec7u ngay l\u1eadp t\u1ee9c.<\/p>\n<h2>S\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa m\u00e1y ch\u1ee7 proxy v\u00e0 \u00e1nh x\u1ea1 d\u1eef li\u1ec7u<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c li\u00ean k\u1ebft gi\u00e1n ti\u1ebfp v\u1edbi \u00e1nh x\u1ea1 d\u1eef li\u1ec7u. M\u00e1y ch\u1ee7 proxy ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t trung gian gi\u1eefa m\u00e1y kh\u00e1ch \u0111ang t\u00ecm ki\u1ebfm t\u00e0i nguy\u00ean v\u00e0 m\u00e1y ch\u1ee7 cung c\u1ea5p c\u00e1c t\u00e0i nguy\u00ean \u0111\u00f3. Khi x\u1eed l\u00fd c\u00e1c \u1ee9ng d\u1ee5ng gi\u00e0u d\u1eef li\u1ec7u, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy xu\u1ea5t t\u1eeb c\u00e1c m\u00e1y ch\u1ee7 kh\u00e1c nhau c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p ho\u1eb7c chuy\u1ec3n \u0111\u1ed5i sang \u0111\u1ecbnh d\u1ea1ng chung tr\u01b0\u1edbc khi \u1ee9ng d\u1ee5ng kh\u00e1ch c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u \u0111\u00f3. \u1ede \u0111\u00e2y, \u00e1nh x\u1ea1 d\u1eef li\u1ec7u \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng.<\/p>\n<p>Ngo\u00e0i ra, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 cung c\u1ea5p th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt trong qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u v\u00ec qu\u00e1 tr\u00ecnh \u00e1nh x\u1ea1 \u0111\u00f4i khi c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m. M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 gi\u00fap b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u n\u00e0y b\u1eb1ng c\u00e1ch \u1ea9n danh l\u01b0u l\u01b0\u1ee3ng, m\u00e3 h\u00f3a d\u1eef li\u1ec7u v\u00e0 cung c\u1ea5p \u0111\u01b0\u1eddng h\u1ea7m an to\u00e0n \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<ol>\n<li><a href=\"https:\/\/www.talend.com\/resources\/what-is-data-mapping\/\" target=\"_new\" rel=\"noopener nofollow\">Gi\u1edbi thi\u1ec7u v\u1ec1 \u00e1nh x\u1ea1 d\u1eef li\u1ec7u<\/a><\/li>\n<li><a href=\"https:\/\/www.datamation.com\/big-data\/data-mapping-for-dummies.html\" target=\"_new\" rel=\"noopener nofollow\">L\u1eadp b\u1ea3n \u0111\u1ed3 d\u1eef li\u1ec7u cho ng\u01b0\u1eddi gi\u1ea3<\/a><\/li>\n<li><a href=\"https:\/\/www.sciencedirect.com\/topics\/computer-science\/data-mapping\" target=\"_new\" rel=\"noopener nofollow\">T\u1ed5ng quan chi ti\u1ebft v\u1ec1 \u00e1nh x\u1ea1 d\u1eef li\u1ec7u<\/a><\/li>\n<li><a href=\"https:\/\/www.guru99.com\/etl-extract-load-process.html\" target=\"_new\" rel=\"noopener nofollow\">\u00c1nh x\u1ea1 d\u1eef li\u1ec7u trong quy tr\u00ecnh ETL<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/vn\/blog\/\" target=\"_new\" rel=\"noopener\">S\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u<\/a><\/li>\n<\/ol>","protected":false},"featured_media":468117,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476666","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Data Mapping: An Indispensable Component of Data Management<\/mark>","faq_items":[{"question":"What is data mapping?","answer":"<p>Data mapping is a critical procedure in numerous data management operations that establishes a connection between distinct data models. It's an essential process that allows data from one system or format to be understood, translated, and transferred into another system or format.<\/p>"},{"question":"What is the history of data mapping?","answer":"<p>The concept of data mapping has its roots in the early days of database technology, around the 1960s, where it was crucial to translate data between various formats and systems. Over the years, this process has evolved from a manual, tedious task to an automated one, with the help of sophisticated mapping tools and algorithms.<\/p>"},{"question":"How does data mapping work?","answer":"<p>Data mapping works through rules or guidelines, which instruct how data from one system (source) is to be transformed or translated when it is transferred to another system (target). It usually works through three key stages: source analysis, transformation, and loading.<\/p>"},{"question":"What are the key features of data mapping?","answer":"<p>Key features of data mapping include compatibility (it allows different data systems to communicate), data transformation (it can transform data based on defined rules), scalability (modern data mapping tools can handle large volumes of data), error identification (it can identify discrepancies or errors in data), and automation (most modern data mapping tools allow for automated data mapping).<\/p>"},{"question":"What types of data mapping exist?","answer":"<p>Data mapping can be categorized into several types such as direct mapping (simple, one-to-one correspondence between source and target fields), transformation mapping (complex transformations where data from one or more source fields is manipulated to fit the target field), and complex mapping (using multiple rules or operations to transform source data to the target structure).<\/p>"},{"question":"How is data mapping used and what are the related problems and solutions?","answer":"<p>Data mapping finds application in numerous scenarios like data integration, data migration, data warehousing, and ETL processes. Challenges in data mapping include the complexity of data, large data volumes, and data accuracy. Modern data mapping tools, machine learning, and artificial intelligence have enabled solutions to these challenges.<\/p>"},{"question":"What is the future of data mapping?","answer":"<p>With the rise of AI and machine learning, we can anticipate more sophisticated, automated data mapping tools that can handle complex data structures and large volumes of data with ease. There is also a growing trend towards real-time data mapping, enabled by advanced streaming technologies.<\/p>"},{"question":"How are proxy servers associated with data mapping?","answer":"<p>Proxy servers can be indirectly linked to data mapping. When dealing with data-rich applications, the data retrieved from different servers might need to be integrated or transformed to a common format. Here, data mapping plays a key role. Proxy servers can provide an extra layer of security during data transfer, as the mapping process may sometimes involve sensitive data.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476666\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/468117"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}