{"id":571818,"date":"2026-07-29T10:34:05","date_gmt":"2026-07-29T03:34:05","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=571818"},"modified":"2026-07-29T10:34:05","modified_gmt":"2026-07-29T03:34:05","slug":"database-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/database-la-gi\/","title":{"rendered":"Database l\u00e0 g\u00ec? Ph\u00e2n lo\u1ea1i, DBMS v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p><strong>Database (c\u01a1 s\u1edf d\u1eef li\u1ec7u) l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p d\u1eef li\u1ec7u c\u00f3 t\u1ed5 ch\u1ee9c, \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef v\u00e0 qu\u1ea3n l\u00fd tr\u00ean h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh \u0111\u1ec3 vi\u1ec7c truy xu\u1ea5t, c\u1eadp nh\u1eadt v\u00e0 x\u1eed l\u00fd th\u00f4ng tin di\u1ec5n ra nhanh ch\u00f3ng, ch\u00ednh x\u00e1c.<\/strong> M\u1ed7i l\u1ea7n b\u1ea1n \u0111\u0103ng nh\u1eadp m\u1ed9t \u1ee9ng d\u1ee5ng, \u0111\u1eb7t h\u00e0ng tr\u1ef1c tuy\u1ebfn hay chuy\u1ec3n kho\u1ea3n ng\u00e2n h\u00e0ng, h\u1ec7 th\u1ed1ng \u0111\u1ec1u \u0111ang \u0111\u1ecdc v\u00e0 ghi d\u1eef li\u1ec7u v\u00e0o m\u1ed9t database n\u00e0o \u0111\u00f3. B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y gi\u00fap b\u1ea1n hi\u1ec3u database ho\u1ea1t \u0111\u1ed9ng ra sao, kh\u00e1c g\u00ec v\u1edbi DBMS, c\u00f3 nh\u1eefng lo\u1ea1i n\u00e0o, c\u00e1c kh\u00e1i ni\u1ec7m b\u1ea3ng \u2013 kh\u00f3a \u2013 ch\u1ec9 m\u1ee5c ngh\u0129a l\u00e0 g\u00ec, c\u00f9ng nh\u1eefng v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf nh\u01b0 sao l\u01b0u v\u00e0 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u.<\/p>\n<h2>Database l\u00e0 g\u00ec?<\/h2>\n<p>Database (c\u01a1 s\u1edf d\u1eef li\u1ec7u) l\u00e0 n\u01a1i l\u01b0u tr\u1eef d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch c\u00f3 t\u1ed5 ch\u1ee9c \u0111\u1ec3 d\u1ec5 d\u00e0ng truy c\u1eadp, qu\u1ea3n l\u00fd v\u00e0 c\u1eadp nh\u1eadt. Thay v\u00ec \u0111\u1ec3 d\u1eef li\u1ec7u r\u1eddi r\u1ea1c trong nhi\u1ec1u t\u1ec7p ri\u00eang l\u1ebb, database s\u1eafp x\u1ebfp th\u00f4ng tin theo m\u1ed9t c\u1ea5u tr\u00fac th\u1ed1ng nh\u1ea5t \u2013 th\u01b0\u1eddng l\u00e0 c\u00e1c b\u1ea3ng c\u00f3 h\u00e0ng v\u00e0 c\u1ed9t \u2013 nh\u1edd \u0111\u00f3 m\u00e1y t\u00ednh t\u00ecm ki\u1ebfm v\u00e0 x\u1eed l\u00fd r\u1ea5t nhanh.<\/p>\n<p>B\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung database nh\u01b0 m\u1ed9t t\u1ee7 h\u1ed3 s\u01a1 c\u1ee7a c\u1eeda h\u00e0ng. M\u1ed7i ng\u0103n k\u00e9o l\u00e0 m\u1ed9t b\u1ea3ng d\u1eef li\u1ec7u: ng\u0103n &#8220;kh\u00e1ch h\u00e0ng&#8221;, ng\u0103n &#8220;s\u1ea3n ph\u1ea9m&#8221;, ng\u0103n &#8220;\u0111\u01a1n h\u00e0ng&#8221;. Trong m\u1ed7i ng\u0103n, t\u1eebng t\u1edd phi\u1ebfu l\u00e0 m\u1ed9t b\u1ea3n ghi v\u00e0 c\u00e1c \u00f4 tr\u00ean phi\u1ebfu l\u00e0 c\u00e1c tr\u01b0\u1eddng th\u00f4ng tin. \u0110i\u1ec3m kh\u00e1c bi\u1ec7t l\u00e0 t\u1ee7 h\u1ed3 s\u01a1 \u0111i\u1ec7n t\u1eed n\u00e0y c\u00f3 th\u1ec3 ch\u1ee9a h\u00e0ng tri\u1ec7u phi\u1ebfu, cho nhi\u1ec1u ng\u01b0\u1eddi tra c\u1ee9u c\u00f9ng l\u00fac v\u00e0 tr\u1ea3 k\u1ebft qu\u1ea3 trong v\u00e0i ph\u1ea7n ngh\u00ecn gi\u00e2y.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-571820\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-1.jpg\" alt=\"database-la-gi-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>H\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u (DBMS) l\u00e0 g\u00ec?<\/h2>\n<p>\u0110\u1ec3 t\u1ea1o v\u00e0 qu\u1ea3n l\u00fd database, ng\u01b0\u1eddi ta d\u00f9ng ph\u1ea7n m\u1ec1m g\u1ecdi l\u00e0 h\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u (DBMS \u2013 Database Management System). \u0110\u00e2y l\u00e0 hai kh\u00e1i ni\u1ec7m r\u1ea5t hay b\u1ecb nh\u1ea7m l\u1eabn:<\/p>\n<ul>\n<li><strong>Database<\/strong> l\u00e0 b\u1ea3n th\u00e2n d\u1eef li\u1ec7u v\u00e0 c\u1ea5u tr\u00fac l\u01b0u tr\u1eef d\u1eef li\u1ec7u \u0111\u00f3.<\/li>\n<li><strong>DBMS<\/strong> l\u00e0 ph\u1ea7n m\u1ec1m trung gian \u0111\u1ee9ng gi\u1eefa ng\u01b0\u1eddi d\u00f9ng, \u1ee9ng d\u1ee5ng v\u00e0 d\u1eef li\u1ec7u, ch\u1ecbu tr\u00e1ch nhi\u1ec7m ghi, \u0111\u1ecdc, ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp, \u0111\u1ea3m b\u1ea3o to\u00e0n v\u1eb9n v\u00e0 kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u khi c\u00f3 s\u1ef1 c\u1ed1.<\/li>\n<\/ul>\n<p>N\u00f3i ng\u1eafn g\u1ecdn: database l\u00e0 kho h\u00e0ng, c\u00f2n DBMS l\u00e0 ng\u01b0\u1eddi th\u1ee7 kho. MySQL, PostgreSQL, SQL Server, Oracle Database, MongoDB \u0111\u1ec1u l\u00e0 c\u00e1c DBMS. \u1ee8ng d\u1ee5ng c\u1ee7a b\u1ea1n kh\u00f4ng ch\u1ea1m tr\u1ef1c ti\u1ebfp v\u00e0o t\u1ec7p d\u1eef li\u1ec7u m\u00e0 g\u1eedi y\u00eau c\u1ea7u cho DBMS, t\u01b0\u01a1ng t\u1ef1 c\u00e1ch m\u1ed9t \u1ee9ng d\u1ee5ng g\u1ecdi d\u1ecbch v\u1ee5 b\u00ean ngo\u00e0i qua <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/api-la-gi\/\">giao di\u1ec7n l\u1eadp tr\u00ecnh \u1ee9ng d\u1ee5ng API<\/a>.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-571821\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-2.jpg\" alt=\"database-la-gi-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>Ph\u00e2n lo\u1ea1i database<\/h2>\n<h3>C\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 (RDBMS)<\/h3>\n<p>C\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 l\u01b0u d\u1eef li\u1ec7u trong c\u00e1c b\u1ea3ng c\u00f3 c\u1ea5u tr\u00fac c\u1ed1 \u0111\u1ecbnh v\u00e0 li\u00ean k\u1ebft v\u1edbi nhau b\u1eb1ng kh\u00f3a. Ng\u01b0\u1eddi d\u00f9ng thao t\u00e1c b\u1eb1ng ng\u00f4n ng\u1eef SQL (Structured Query Language \u2013 ng\u00f4n ng\u1eef truy v\u1ea5n c\u00f3 c\u1ea5u tr\u00fac). \u0110\u00e2y l\u00e0 m\u00f4 h\u00ecnh ph\u1ed5 bi\u1ebfn nh\u1ea5t trong c\u00e1c h\u1ec7 th\u1ed1ng c\u1ea7n d\u1eef li\u1ec7u ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i nh\u01b0 ng\u00e2n h\u00e0ng, k\u1ebf to\u00e1n, qu\u1ea3n l\u00fd kho.<\/p>\n<p>C\u00e1c \u0111\u1ea1i di\u1ec7n quen thu\u1ed9c: <strong>MySQL<\/strong> (m\u00e3 ngu\u1ed3n m\u1edf, r\u1ea5t ph\u1ed5 bi\u1ebfn v\u1edbi website), <strong>PostgreSQL<\/strong> (m\u00e3 ngu\u1ed3n m\u1edf, m\u1ea1nh v\u1ec1 t\u00ednh n\u0103ng n\u00e2ng cao), <strong>Microsoft SQL Server<\/strong> (h\u1ec7 sinh th\u00e1i doanh nghi\u1ec7p Windows) v\u00e0 <strong>Oracle Database<\/strong> (th\u01b0\u1eddng d\u00f9ng trong h\u1ec7 th\u1ed1ng l\u1edbn c\u1ee7a ng\u00e2n h\u00e0ng, vi\u1ec5n th\u00f4ng).<\/p>\n<h3>C\u01a1 s\u1edf d\u1eef li\u1ec7u phi quan h\u1ec7 (NoSQL)<\/h3>\n<p>NoSQL kh\u00f4ng b\u1eaft bu\u1ed9c d\u1eef li\u1ec7u ph\u1ea3i theo m\u1ed9t c\u1ea5u tr\u00fac b\u1ea3ng c\u1ee9ng nh\u1eafc, nh\u1edd \u0111\u00f3 linh ho\u1ea1t h\u01a1n khi d\u1eef li\u1ec7u thay \u0111\u1ed5i li\u00ean t\u1ee5c ho\u1eb7c c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng r\u1ea5t l\u1edbn. NoSQL g\u1ed3m nhi\u1ec1u nh\u00e1nh:<\/p>\n<ul>\n<li><strong>D\u1ea1ng t\u00e0i li\u1ec7u (document):<\/strong> MongoDB l\u01b0u m\u1ed7i b\u1ea3n ghi nh\u01b0 m\u1ed9t t\u00e0i li\u1ec7u JSON, c\u00e1c b\u1ea3n ghi c\u00f3 th\u1ec3 c\u00f3 s\u1ed1 tr\u01b0\u1eddng kh\u00e1c nhau.<\/li>\n<li><strong>D\u1ea1ng kh\u00f3a \u2013 gi\u00e1 tr\u1ecb (key-value):<\/strong> Redis l\u01b0u c\u1eb7p &#8220;kh\u00f3a \u2013 gi\u00e1 tr\u1ecb&#8221; trong b\u1ed9 nh\u1edb, t\u1ed1c \u0111\u1ed9 \u0111\u1ecdc r\u1ea5t cao, hay d\u00f9ng \u0111\u1ec3 l\u01b0u b\u1ed9 nh\u1edb \u0111\u1ec7m v\u00e0 phi\u00ean \u0111\u0103ng nh\u1eadp.<\/li>\n<li><strong>D\u1ea1ng c\u1ed9t (wide-column):<\/strong> Cassandra t\u1ed5 ch\u1ee9c d\u1eef li\u1ec7u theo h\u1ecd c\u1ed9t, ph\u00f9 h\u1ee3p ghi d\u1eef li\u1ec7u li\u00ean t\u1ee5c tr\u00ean nhi\u1ec1u m\u00e1y ch\u1ee7.<\/li>\n<li><strong>D\u1ea1ng \u0111\u1ed3 th\u1ecb (graph):<\/strong> Neo4j l\u01b0u c\u00e1c n\u00fat v\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa ch\u00fang, h\u1ee3p v\u1edbi m\u1ea1ng x\u00e3 h\u1ed9i hay h\u1ec7 th\u1ed1ng g\u1ee3i \u00fd.<\/li>\n<\/ul>\n<h2>So s\u00e1nh SQL v\u00e0 NoSQL<\/h2>\n<table>\n<thead>\n<tr>\n<th>Ti\u00eau ch\u00ed<\/th>\n<th>SQL (quan h\u1ec7)<\/th>\n<th>NoSQL (phi quan h\u1ec7)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>C\u1ea5u tr\u00fac d\u1eef li\u1ec7u<\/td>\n<td>B\u1ea3ng c\u1ed1 \u0111\u1ecbnh, khai b\u00e1o tr\u01b0\u1edbc ki\u1ec3u d\u1eef li\u1ec7u t\u1eebng c\u1ed9t<\/td>\n<td>Linh ho\u1ea1t: t\u00e0i li\u1ec7u, kh\u00f3a \u2013 gi\u00e1 tr\u1ecb, c\u1ed9t, \u0111\u1ed3 th\u1ecb<\/td>\n<\/tr>\n<tr>\n<td>Ng\u00f4n ng\u1eef truy v\u1ea5n<\/td>\n<td>SQL chu\u1ea9n h\u00f3a<\/td>\n<td>M\u1ed7i h\u1ec7 th\u1ed1ng c\u00f3 c\u00fa ph\u00e1p ri\u00eang<\/td>\n<\/tr>\n<tr>\n<td>M\u1edf r\u1ed9ng<\/td>\n<td>Th\u01b0\u1eddng m\u1edf r\u1ed9ng theo chi\u1ec1u d\u1ecdc (n\u00e2ng c\u1ea5p m\u00e1y ch\u1ee7)<\/td>\n<td>Thi\u00ean v\u1ec1 m\u1edf r\u1ed9ng theo chi\u1ec1u ngang (th\u00eam m\u00e1y ch\u1ee7)<\/td>\n<\/tr>\n<tr>\n<td>T\u00ednh nh\u1ea5t qu\u00e1n<\/td>\n<td>\u01afu ti\u00ean chu\u1ea9n ACID, d\u1eef li\u1ec7u nh\u1ea5t qu\u00e1n ngay<\/td>\n<td>Nhi\u1ec1u h\u1ec7 ch\u1ea5p nh\u1eadn nh\u1ea5t qu\u00e1n sau m\u1ed9t kho\u1ea3ng tr\u1ec5<\/td>\n<\/tr>\n<tr>\n<td>Ph\u00f9 h\u1ee3p v\u1edbi<\/td>\n<td>Giao d\u1ecbch t\u00e0i ch\u00ednh, k\u1ebf to\u00e1n, qu\u1ea3n l\u00fd b\u00e1n h\u00e0ng<\/td>\n<td>D\u1eef li\u1ec7u l\u1edbn, log, n\u1ed9i dung thay \u0111\u1ed5i c\u1ea5u tr\u00fac th\u01b0\u1eddng xuy\u00ean<\/td>\n<\/tr>\n<tr>\n<td>V\u00ed d\u1ee5<\/td>\n<td>MySQL, PostgreSQL, SQL Server, Oracle<\/td>\n<td>MongoDB, Redis, Cassandra, Neo4j<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Kh\u00f4ng c\u00f3 lo\u1ea1i n\u00e0o &#8220;t\u1ed1t h\u01a1n&#8221; tuy\u1ec7t \u0111\u1ed1i. Nhi\u1ec1u h\u1ec7 th\u1ed1ng th\u1ef1c t\u1ebf d\u00f9ng song song: SQL cho d\u1eef li\u1ec7u giao d\u1ecbch, Redis cho b\u1ed9 nh\u1edb \u0111\u1ec7m, MongoDB cho n\u1ed9i dung linh ho\u1ea1t.<\/p>\n<h2>C\u00e1c th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a database quan h\u1ec7<\/h2>\n<ul>\n<li><strong>B\u1ea3ng (table):<\/strong> n\u01a1i l\u01b0u d\u1eef li\u1ec7u c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng, v\u00ed d\u1ee5 b\u1ea3ng KhachHang.<\/li>\n<li><strong>H\u00e0ng (row\/record):<\/strong> m\u1ed9t b\u1ea3n ghi c\u1ee5 th\u1ec3, v\u00ed d\u1ee5 m\u1ed9t kh\u00e1ch h\u00e0ng.<\/li>\n<li><strong>C\u1ed9t (column\/field):<\/strong> m\u1ed9t thu\u1ed9c t\u00ednh d\u1eef li\u1ec7u nh\u01b0 h\u1ecd t\u00ean, s\u1ed1 \u0111i\u1ec7n tho\u1ea1i, ng\u00e0y sinh.<\/li>\n<li><strong>Kh\u00f3a ch\u00ednh (primary key):<\/strong> c\u1ed9t c\u00f3 gi\u00e1 tr\u1ecb duy nh\u1ea5t, kh\u00f4ng tr\u00f9ng v\u00e0 kh\u00f4ng r\u1ed7ng, d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c t\u1eebng b\u1ea3n ghi \u2013 v\u00ed d\u1ee5 m\u00e3 kh\u00e1ch h\u00e0ng.<\/li>\n<li><strong>Kh\u00f3a ngo\u1ea1i (foreign key):<\/strong> c\u1ed9t tham chi\u1ebfu t\u1edbi kh\u00f3a ch\u00ednh c\u1ee7a b\u1ea3ng kh\u00e1c, t\u1ea1o n\u00ean &#8220;quan h\u1ec7&#8221;. B\u1ea3ng DonHang ch\u1ee9a c\u1ed9t MaKhachHang tr\u1ecf t\u1edbi b\u1ea3ng KhachHang, nh\u1edd v\u1eady h\u1ec7 th\u1ed1ng bi\u1ebft \u0111\u01a1n h\u00e0ng thu\u1ed9c v\u1ec1 ai v\u00e0 ng\u0103n vi\u1ec7c t\u1ea1o \u0111\u01a1n cho kh\u00e1ch kh\u00f4ng t\u1ed3n t\u1ea1i.<\/li>\n<li><strong>Ch\u1ec9 m\u1ee5c (index):<\/strong> c\u1ea5u tr\u00fac ph\u1ee5 gi\u00fap t\u00ecm ki\u1ebfm nhanh, gi\u1ed1ng m\u1ee5c l\u1ee5c c\u1ee7a m\u1ed9t cu\u1ed1n s\u00e1ch. C\u00f3 ch\u1ec9 m\u1ee5c, h\u1ec7 th\u1ed1ng kh\u00f4ng ph\u1ea3i qu\u00e9t to\u00e0n b\u1ed9 b\u1ea3ng. \u0110\u1ed5i l\u1ea1i, ch\u1ec9 m\u1ee5c chi\u1ebfm th\u00eam dung l\u01b0\u1ee3ng v\u00e0 l\u00e0m ch\u1eadm nh\u1eb9 thao t\u00e1c ghi, n\u00ean ch\u1ec9 n\u00ean t\u1ea1o cho c\u00e1c c\u1ed9t th\u01b0\u1eddng xuy\u00ean d\u00f9ng \u0111\u1ec3 t\u00ecm ki\u1ebfm ho\u1eb7c l\u1ecdc.<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-571822\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-3.jpg\" alt=\"database-la-gi-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>CRUD \u2013 b\u1ed1n thao t\u00e1c c\u01a1 b\u1ea3n v\u1edbi d\u1eef li\u1ec7u<\/h2>\n<p>CRUD l\u00e0 ch\u1eef vi\u1ebft t\u1eaft c\u1ee7a b\u1ed1n thao t\u00e1c n\u1ec1n t\u1ea3ng m\u00e0 m\u1ecdi \u1ee9ng d\u1ee5ng \u0111\u1ec1u th\u1ef1c hi\u1ec7n tr\u00ean database:<\/p>\n<ul>\n<li><strong>Create (t\u1ea1o):<\/strong> th\u00eam b\u1ea3n ghi m\u1edbi, v\u00ed d\u1ee5 \u0111\u0103ng k\u00fd t\u00e0i kho\u1ea3n.<\/li>\n<li><strong>Read (\u0111\u1ecdc):<\/strong> truy xu\u1ea5t d\u1eef li\u1ec7u, v\u00ed d\u1ee5 xem danh s\u00e1ch s\u1ea3n ph\u1ea9m.<\/li>\n<li><strong>Update (c\u1eadp nh\u1eadt):<\/strong> s\u1eeda d\u1eef li\u1ec7u \u0111\u00e3 c\u00f3, v\u00ed d\u1ee5 \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 giao h\u00e0ng.<\/li>\n<li><strong>Delete (x\u00f3a):<\/strong> lo\u1ea1i b\u1ecf b\u1ea3n ghi, v\u00ed d\u1ee5 h\u1ee7y m\u1ed9t \u0111\u01a1n h\u00e0ng nh\u00e1p.<\/li>\n<\/ul>\n<p>Trong SQL, b\u1ed1n thao t\u00e1c n\u00e0y t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c c\u00e2u l\u1ec7nh INSERT, SELECT, UPDATE v\u00e0 DELETE.<\/p>\n<h2>ACID \u2013 v\u00ec sao d\u1eef li\u1ec7u kh\u00f4ng b\u1ecb &#8220;m\u1ea5t gi\u1eefa ch\u1eebng&#8221;<\/h2>\n<p>ACID l\u00e0 b\u1ed9 b\u1ed1n t\u00ednh ch\u1ea5t m\u00e0 m\u1ed9t giao d\u1ecbch (transaction) trong c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 c\u1ea7n b\u1ea3o \u0111\u1ea3m:<\/p>\n<ul>\n<li><strong>Atomicity (t\u00ednh nguy\u00ean t\u1eed):<\/strong> giao d\u1ecbch ho\u1eb7c ho\u00e0n th\u00e0nh tr\u1ecdn v\u1eb9n, ho\u1eb7c b\u1ecb h\u1ee7y ho\u00e0n to\u00e0n. Khi b\u1ea1n chuy\u1ec3n ti\u1ec1n, kh\u00f4ng th\u1ec3 x\u1ea3y ra tr\u01b0\u1eddng h\u1ee3p t\u00e0i kho\u1ea3n g\u1eedi \u0111\u00e3 b\u1ecb tr\u1eeb m\u00e0 t\u00e0i kho\u1ea3n nh\u1eadn ch\u01b0a \u0111\u01b0\u1ee3c c\u1ed9ng.<\/li>\n<li><strong>Consistency (t\u00ednh nh\u1ea5t qu\u00e1n):<\/strong> d\u1eef li\u1ec7u tr\u01b0\u1edbc v\u00e0 sau giao d\u1ecbch \u0111\u1ec1u tu\u00e2n th\u1ee7 m\u1ecdi r\u00e0ng bu\u1ed9c \u0111\u00e3 \u0111\u1eb7t ra, v\u00ed d\u1ee5 kh\u00f3a ngo\u1ea1i hay \u0111i\u1ec1u ki\u1ec7n s\u1ed1 d\u01b0 kh\u00f4ng \u00e2m.<\/li>\n<li><strong>Isolation (t\u00ednh c\u00f4 l\u1eadp):<\/strong> nhi\u1ec1u giao d\u1ecbch ch\u1ea1y \u0111\u1ed3ng th\u1eddi kh\u00f4ng l\u00e0m nhi\u1ec5u k\u1ebft qu\u1ea3 c\u1ee7a nhau.<\/li>\n<li><strong>Durability (t\u00ednh b\u1ec1n v\u1eefng):<\/strong> khi giao d\u1ecbch \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn, d\u1eef li\u1ec7u v\u1eabn c\u00f2n nguy\u00ean k\u1ec3 c\u1ea3 khi m\u00e1y ch\u1ee7 m\u1ea5t \u0111i\u1ec7n ngay sau \u0111\u00f3.<\/li>\n<\/ul>\n<p>\u0110\u00e2y l\u00e0 l\u00fd do c\u00e1c h\u1ec7 th\u1ed1ng t\u00e0i ch\u00ednh h\u1ea7u nh\u01b0 lu\u00f4n ch\u1ecdn c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7. V\u1edbi <a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/blockchain-la-gi\/\">c\u00f4ng ngh\u1ec7 blockchain<\/a>, t\u00ednh b\u1ea5t bi\u1ebfn c\u1ee7a d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c b\u1ea3o \u0111\u1ea3m b\u1eb1ng c\u01a1 ch\u1ebf kh\u00e1c: chu\u1ed7i kh\u1ed1i ph\u00e2n t\u00e1n v\u00e0 \u0111\u1ed3ng thu\u1eadn gi\u1eefa nhi\u1ec1u n\u00fat m\u1ea1ng, thay v\u00ec m\u1ed9t h\u1ec7 qu\u1ea3n tr\u1ecb t\u1eadp trung.<\/p>\n<h2>Sao l\u01b0u v\u00e0 b\u1ea3o m\u1eadt database<\/h2>\n<p>D\u1eef li\u1ec7u th\u01b0\u1eddng c\u00f3 gi\u00e1 tr\u1ecb l\u1edbn h\u01a1n c\u1ea3 ph\u1ea7n m\u1ec1m t\u1ea1o ra n\u00f3, n\u00ean hai vi\u1ec7c sau l\u00e0 b\u1eaft bu\u1ed9c v\u1edbi m\u1ecdi h\u1ec7 th\u1ed1ng nghi\u00eam t\u00fac:<\/p>\n<ul>\n<li><strong>Sao l\u01b0u (backup):<\/strong> t\u1ea1o b\u1ea3n sao \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 kh\u00f4i ph\u1ee5c khi h\u1ecfng \u1ed5 \u0111\u0129a, l\u1ed7i ph\u1ea7n m\u1ec1m ho\u1eb7c thao t\u00e1c nh\u1ea7m. B\u1ea3n sao n\u00ean \u0111\u01b0\u1ee3c l\u01b0u \u1edf v\u1ecb tr\u00ed t\u00e1ch bi\u1ec7t v\u1edbi m\u00e1y ch\u1ee7 ch\u00ednh v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c th\u1eed kh\u00f4i ph\u1ee5c th\u1eadt, v\u00ec m\u1ed9t b\u1ea3n sao l\u01b0u ch\u01b0a t\u1eebng ph\u1ee5c h\u1ed3i th\u1eed th\u00ec ch\u01b0a th\u1ec3 coi l\u00e0 an to\u00e0n.<\/li>\n<li><strong>Ph\u00e2n quy\u1ec1n:<\/strong> m\u1ed7i t\u00e0i kho\u1ea3n ch\u1ec9 \u0111\u01b0\u1ee3c c\u1ea5p \u0111\u00fang quy\u1ec1n c\u1ea7n thi\u1ebft; \u1ee9ng d\u1ee5ng \u0111\u1ecdc d\u1eef li\u1ec7u b\u00e1o c\u00e1o kh\u00f4ng c\u1ea7n quy\u1ec1n x\u00f3a b\u1ea3ng.<\/li>\n<li><strong>M\u00e3 h\u00f3a:<\/strong> m\u00e3 h\u00f3a d\u1eef li\u1ec7u khi l\u01b0u tr\u00ean \u0111\u0129a v\u00e0 khi truy\u1ec1n qua m\u1ea1ng; m\u1eadt kh\u1ea9u ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i \u0111\u01b0\u1ee3c b\u0103m (hash), kh\u00f4ng bao gi\u1edd l\u01b0u \u1edf d\u1ea1ng nguy\u00ean b\u1ea3n.<\/li>\n<li><strong>Ch\u1ed1ng SQL injection:<\/strong> \u0111\u00e2y l\u00e0 l\u1ed7 h\u1ed5ng ph\u1ed5 bi\u1ebfn khi \u1ee9ng d\u1ee5ng gh\u00e9p chu\u1ed7i truy v\u1ea5n t\u1eeb d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng nh\u1eadp v\u00e0o. C\u00e1ch ph\u00f2ng tr\u00e1nh ti\u00eau chu\u1ea9n l\u00e0 d\u00f9ng truy v\u1ea5n tham s\u1ed1 h\u00f3a v\u00e0 ki\u1ec3m tra d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o.<\/li>\n<li><strong>Ghi nh\u1eadt k\u00fd (log):<\/strong> l\u01b0u l\u1ea1i ai \u0111\u00e3 truy c\u1eadp v\u00e0 thay \u0111\u1ed5i g\u00ec, ph\u1ee5c v\u1ee5 \u0111i\u1ec1u tra khi c\u00f3 s\u1ef1 c\u1ed1.<\/li>\n<\/ul>\n<h2>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a database<\/h2>\n<p>Database hi\u1ec7n di\u1ec7n \u1edf h\u1ea7u h\u1ebft m\u1ecdi d\u1ecbch v\u1ee5 s\u1ed1 b\u1ea1n d\u00f9ng h\u1eb1ng ng\u00e0y:<\/p>\n<ul>\n<li><strong>Th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed:<\/strong> l\u01b0u s\u1ea3n ph\u1ea9m, t\u1ed3n kho, gi\u1ecf h\u00e0ng, \u0111\u01a1n h\u00e0ng v\u00e0 l\u1ecbch s\u1eed mua.<\/li>\n<li><strong>Ng\u00e2n h\u00e0ng, v\u00ed \u0111i\u1ec7n t\u1eed:<\/strong> l\u01b0u t\u00e0i kho\u1ea3n, s\u1ed1 d\u01b0 v\u00e0 t\u1eebng giao d\u1ecbch v\u1edbi y\u00eau c\u1ea7u ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i.<\/li>\n<li><strong>M\u1ea1ng x\u00e3 h\u1ed9i:<\/strong> l\u01b0u ng\u01b0\u1eddi d\u00f9ng, b\u00e0i \u0111\u0103ng, b\u00ecnh lu\u1eadn v\u00e0 quan h\u1ec7 b\u1ea1n b\u00e8.<\/li>\n<li><strong>\u1ee8ng d\u1ee5ng di \u0111\u1ed9ng:<\/strong> nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f2n c\u00f3 database nh\u1ecf ngay tr\u00ean m\u00e1y (nh\u01b0 SQLite) \u0111\u1ec3 d\u00f9ng \u0111\u01b0\u1ee3c c\u1ea3 khi m\u1ea5t m\u1ea1ng, sau \u0111\u00f3 \u0111\u1ed3ng b\u1ed9 l\u00ean m\u00e1y ch\u1ee7.<\/li>\n<li><strong>Qu\u1ea3n tr\u1ecb doanh nghi\u1ec7p:<\/strong> h\u1ec7 th\u1ed1ng nh\u00e2n s\u1ef1, k\u1ebf to\u00e1n, kho v\u1eadn \u0111\u1ec1u x\u00e2y tr\u00ean n\u1ec1n m\u1ed9t ho\u1eb7c nhi\u1ec1u database.<\/li>\n<\/ul>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 database<\/h2>\n<h3>Database v\u00e0 DBMS kh\u00e1c nhau th\u1ebf n\u00e0o?<\/h3>\n<p>Database l\u00e0 t\u1eadp d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c v\u00e0 l\u01b0u tr\u1eef, c\u00f2n DBMS l\u00e0 ph\u1ea7n m\u1ec1m d\u00f9ng \u0111\u1ec3 t\u1ea1o, qu\u1ea3n l\u00fd v\u00e0 truy v\u1ea5n d\u1eef li\u1ec7u \u0111\u00f3. MySQL hay MongoDB l\u00e0 DBMS; d\u1eef li\u1ec7u b\u1ea1n l\u01b0u b\u00ean trong ch\u00fang m\u1edbi l\u00e0 database.<\/p>\n<h3>N\u00ean ch\u1ecdn SQL hay NoSQL?<\/h3>\n<p>Ch\u1ecdn SQL khi d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac r\u00f5 r\u00e0ng v\u00e0 c\u1ea7n \u0111\u1ed9 ch\u00ednh x\u00e1c cao trong giao d\u1ecbch. Ch\u1ecdn NoSQL khi d\u1eef li\u1ec7u thay \u0111\u1ed5i c\u1ea5u tr\u00fac th\u01b0\u1eddng xuy\u00ean, kh\u1ed1i l\u01b0\u1ee3ng r\u1ea5t l\u1edbn ho\u1eb7c c\u1ea7n m\u1edf r\u1ed9ng theo chi\u1ec1u ngang. Nhi\u1ec1u h\u1ec7 th\u1ed1ng d\u00f9ng c\u1ea3 hai cho c\u00e1c ph\u1ea7n kh\u00e1c nhau.<\/p>\n<h3>Kh\u00f3a ch\u00ednh v\u00e0 kh\u00f3a ngo\u1ea1i kh\u00e1c nhau \u1edf \u0111i\u1ec3m n\u00e0o?<\/h3>\n<p>Kh\u00f3a ch\u00ednh l\u00e0 c\u1ed9t c\u00f3 gi\u00e1 tr\u1ecb duy nh\u1ea5t d\u00f9ng \u0111\u1ec3 nh\u1eadn di\u1ec7n t\u1eebng b\u1ea3n ghi trong ch\u00ednh b\u1ea3ng \u0111\u00f3. Kh\u00f3a ngo\u1ea1i l\u00e0 c\u1ed9t tr\u1ecf t\u1edbi kh\u00f3a ch\u00ednh c\u1ee7a m\u1ed9t b\u1ea3ng kh\u00e1c nh\u1eb1m t\u1ea1o li\u00ean k\u1ebft v\u00e0 b\u1ea3o \u0111\u1ea3m d\u1eef li\u1ec7u tham chi\u1ebfu lu\u00f4n h\u1ee3p l\u1ec7.<\/p>\n<h3>Ch\u1ec9 m\u1ee5c (index) c\u00f3 t\u00e1c d\u1ee5ng g\u00ec?<\/h3>\n<p>Ch\u1ec9 m\u1ee5c gi\u00fap database t\u00ecm b\u1ea3n ghi nhanh h\u01a1n nhi\u1ec1u m\u00e0 kh\u00f4ng c\u1ea7n qu\u00e9t to\u00e0n b\u1ed9 b\u1ea3ng, t\u01b0\u01a1ng t\u1ef1 m\u1ee5c l\u1ee5c s\u00e1ch. \u0110\u1ed5i l\u1ea1i n\u00f3 t\u1ed1n th\u00eam dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef v\u00e0 l\u00e0m ch\u1eadm nh\u1eb9 c\u00e1c thao t\u00e1c th\u00eam, s\u1eeda, x\u00f3a.<\/p>\n<h3>CRUD l\u00e0 g\u00ec?<\/h3>\n<p>CRUD l\u00e0 b\u1ed1n thao t\u00e1c c\u01a1 b\u1ea3n v\u1edbi d\u1eef li\u1ec7u: Create (t\u1ea1o), Read (\u0111\u1ecdc), Update (c\u1eadp nh\u1eadt) v\u00e0 Delete (x\u00f3a), t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c c\u00e2u l\u1ec7nh INSERT, SELECT, UPDATE, DELETE trong SQL.<\/p>\n<h3>ACID trong c\u01a1 s\u1edf d\u1eef li\u1ec7u ngh\u0129a l\u00e0 g\u00ec?<\/h3>\n<p>ACID g\u1ed3m Atomicity, Consistency, Isolation v\u00e0 Durability \u2013 b\u1ed1n t\u00ednh ch\u1ea5t b\u1ea3o \u0111\u1ea3m m\u1ed7i giao d\u1ecbch ho\u1eb7c th\u1ef1c hi\u1ec7n tr\u1ecdn v\u1eb9n ho\u1eb7c kh\u00f4ng th\u1ef1c hi\u1ec7n, d\u1eef li\u1ec7u lu\u00f4n h\u1ee3p l\u1ec7, c\u00e1c giao d\u1ecbch \u0111\u1ed3ng th\u1eddi kh\u00f4ng l\u00e0m nhi\u1ec5u nhau v\u00e0 k\u1ebft qu\u1ea3 \u0111\u00e3 x\u00e1c nh\u1eadn th\u00ec kh\u00f4ng b\u1ecb m\u1ea5t.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>T\u00f3m l\u1ea1i, <strong>database l\u00e0 t\u1eadp d\u1eef li\u1ec7u c\u00f3 t\u1ed5 ch\u1ee9c \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd b\u1edfi DBMS, chia th\u00e0nh hai nh\u00f3m ch\u00ednh l\u00e0 quan h\u1ec7 (SQL) v\u00e0 phi quan h\u1ec7 (NoSQL)<\/strong>. Khi n\u1eafm \u0111\u01b0\u1ee3c b\u1ea3ng \u2013 kh\u00f3a ch\u00ednh \u2013 kh\u00f3a ngo\u1ea1i \u2013 ch\u1ec9 m\u1ee5c, b\u1ed1n thao t\u00e1c CRUD v\u00e0 b\u1ed9 t\u00ednh ch\u1ea5t ACID, b\u1ea1n \u0111\u00e3 c\u00f3 n\u1ec1n t\u1ea3ng \u0111\u1ee7 \u0111\u1ec3 \u0111\u1ecdc hi\u1ec3u c\u00e1ch m\u1ed9t \u1ee9ng d\u1ee5ng l\u01b0u tr\u1eef th\u00f4ng tin. \u0110\u1eebng qu\u00ean r\u1eb1ng sao l\u01b0u \u0111\u1ecbnh k\u1ef3 v\u00e0 ph\u00e2n quy\u1ec1n ch\u1eb7t ch\u1ebd quan tr\u1ecdng kh\u00f4ng k\u00e9m vi\u1ec7c thi\u1ebft k\u1ebf b\u1ea3ng.<\/p>\n<p>Xem th\u00eam:<\/p>\n<ul>\n<li><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/api-la-gi\/\">API l\u00e0 g\u00ec? C\u00e1ch ho\u1ea1t \u0111\u1ed9ng v\u00e0 v\u00ed d\u1ee5 d\u1ec5 hi\u1ec3u<\/a><\/li>\n<li><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/http-la-gi\/\">HTTP l\u00e0 g\u00ec? Ph\u00e2n bi\u1ec7t HTTP v\u00e0 HTTPS<\/a><\/li>\n<li><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/blockchain-la-gi\/\">Blockchain l\u00e0 g\u00ec? Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng<\/a><\/li>\n<\/ul>\n<p><script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Database v\u00e0 DBMS kh\u00e1c nhau th\u1ebf n\u00e0o?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Database l\u00e0 t\u1eadp d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c v\u00e0 l\u01b0u tr\u1eef, c\u00f2n DBMS l\u00e0 ph\u1ea7n m\u1ec1m d\u00f9ng \u0111\u1ec3 t\u1ea1o, qu\u1ea3n l\u00fd v\u00e0 truy v\u1ea5n d\u1eef li\u1ec7u \u0111\u00f3. 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Nhi\u1ec1u h\u1ec7 th\u1ed1ng d\u00f9ng c\u1ea3 hai cho c\u00e1c ph\u1ea7n kh\u00e1c nhau.\"}},{\"@type\":\"Question\",\"name\":\"Kh\u00f3a ch\u00ednh v\u00e0 kh\u00f3a ngo\u1ea1i kh\u00e1c nhau \u1edf \u0111i\u1ec3m n\u00e0o?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Kh\u00f3a ch\u00ednh l\u00e0 c\u1ed9t c\u00f3 gi\u00e1 tr\u1ecb duy nh\u1ea5t d\u00f9ng \u0111\u1ec3 nh\u1eadn di\u1ec7n t\u1eebng b\u1ea3n ghi trong ch\u00ednh b\u1ea3ng \u0111\u00f3. 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M\u1ed7i l\u1ea7n b\u1ea1n \u0111\u0103ng nh\u1eadp m\u1ed9t \u1ee9ng d\u1ee5ng, \u0111\u1eb7t h\u00e0ng tr\u1ef1c tuy\u1ebfn hay [&hellip;]<\/p>\n","protected":false},"author":102,"featured_media":571823,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"database l\u00e0 g\u00ec","_yoast_wpseo_title":"Database l\u00e0 g\u00ec? Ph\u00e2n lo\u1ea1i, DBMS v\u00e0 \u1ee9ng d\u1ee5ng","_yoast_wpseo_metadesc":"Database l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u c\u01a1 s\u1edf d\u1eef li\u1ec7u, ph\u00e2n bi\u1ec7t DBMS, so s\u00e1nh SQL v\u00e0 NoSQL, kh\u00f3a ch\u00ednh, kh\u00f3a ngo\u1ea1i, ch\u1ec9 m\u1ee5c, CRUD, ACID v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.","footnotes":""},"categories":[29235,3910],"tags":[],"class_list":["post-571818","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goc-to-mo","category-kham-pha"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Database l\u00e0 g\u00ec? Ph\u00e2n lo\u1ea1i, DBMS v\u00e0 \u1ee9ng d\u1ee5ng<\/title>\n<meta name=\"description\" content=\"Database l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u c\u01a1 s\u1edf d\u1eef li\u1ec7u, ph\u00e2n bi\u1ec7t DBMS, so s\u00e1nh SQL v\u00e0 NoSQL, kh\u00f3a ch\u00ednh, kh\u00f3a ngo\u1ea1i, ch\u1ec9 m\u1ee5c, CRUD, ACID v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hoanghamobile.com\/tin-tuc\/database-la-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Database l\u00e0 g\u00ec? Ph\u00e2n lo\u1ea1i, DBMS v\u00e0 \u1ee9ng d\u1ee5ng\" \/>\n<meta property=\"og:description\" content=\"Database l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u c\u01a1 s\u1edf d\u1eef li\u1ec7u, ph\u00e2n bi\u1ec7t DBMS, so s\u00e1nh SQL v\u00e0 NoSQL, kh\u00f3a ch\u00ednh, kh\u00f3a ngo\u1ea1i, ch\u1ec9 m\u1ee5c, CRUD, ACID v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hoanghamobile.com\/tin-tuc\/database-la-gi\/\" \/>\n<meta property=\"og:site_name\" content=\"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/hoanghamobilecom\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/hoanghamobilecom\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-29T03:34:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2026\/07\/database-la-gi.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Nguy\u1ec5n Xu\u00e2n Thi\u00ean\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nguy\u1ec5n Xu\u00e2n Thi\u00ean\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/hoanghamobile.com\\\/tin-tuc\\\/database-la-gi\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/hoanghamobile.com\\\/tin-tuc\\\/database-la-gi\\\/\"},\"author\":{\"name\":\"Nguy\u1ec5n Xu\u00e2n Thi\u00ean\",\"@id\":\"https:\\\/\\\/hoanghamobile.com\\\/tin-tuc\\\/#\\\/schema\\\/person\\\/82f19cb5a6fb9de82c288acacfe400c5\"},\"headline\":\"Database l\u00e0 g\u00ec? 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