{"id":8761,"date":"2025-03-07T10:45:02","date_gmt":"2025-03-07T03:45:02","guid":{"rendered":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/?p=8761"},"modified":"2026-08-05T10:21:06","modified_gmt":"2026-08-05T03:21:06","slug":"dml-la-gi","status":"publish","type":"post","link":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/tu-van-nghe-nghiep\/dml-la-gi","title":{"rendered":"DML l\u00e0 g\u00ec? Kh\u00e1m Ph\u00e1 Ng\u00f4n Ng\u1eef Thao T\u00e1c D\u1eef Li\u1ec7u"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">DML l\u00e0 thu\u1eadt ng\u1eef \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ea5t ph\u1ed5 bi\u1ebfn trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 th\u00f4ng tin, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi nh\u1eefng ai l\u00e0m vi\u1ec7c v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i ai c\u0169ng hi\u1ec3u r\u00f5 <strong>DML l\u00e0 g\u00ec<\/strong> v\u00e0 n\u00f3 c\u00f3 vai tr\u00f2 nh\u01b0 th\u1ebf n\u00e0o trong vi\u1ec7c qu\u1ea3n l\u00fd d\u1eef li\u1ec7u? N\u1ebfu b\u1ea1n c\u0169ng \u0111ang c\u00f3 th\u1eafc m\u1eafc n\u00e0y th\u00ec h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u chi ti\u1ebft qua b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"512\" src=\"https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/03\/07104411\/unnamed-9.png\" alt=\"DML L\u00c0 G\u00cc\" class=\"wp-image-8801\" srcset=\"https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/03\/07104411\/unnamed-9.png 512w, https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/03\/07104411\/unnamed-9-300x300.png 300w, https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/03\/07104411\/unnamed-9-150x150.png 150w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/figure>\n<\/div>\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u (DML &#8211; Data Manipulation Language) l\u00e0 m\u1ed9t b\u1ed9 l\u1ec7nh trong c\u01a1 s\u1edf d\u1eef li\u1ec7u m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c nh\u01b0 \u0111\u1ecdc, ghi, c\u1eadp nh\u1eadt v\u00e0 x\u00f3a d\u1eef li\u1ec7u.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u00f4n ng\u1eef n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 l\u1ec7nh m\u00e0 n\u00f3 c\u00f2n l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a c\u00e1c h\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u (DBMS). DML cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi d\u1eef li\u1ec7u theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau, t\u1eeb \u0111\u00f3 gi\u00fap h\u1ecd \u0111i\u1ec1u ch\u1ec9nh v\u00e0 t\u1ea1o ra ph\u00e2n t\u00edch gi\u00e1 tr\u1ecb t\u1eeb d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0110\u1ecbnh ngh\u0129a DML<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DML, vi\u1ebft t\u1eaft c\u1ee7a Data Manipulation Language, l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thao t\u00e1c d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong c\u00e1c h\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u. N\u00f3 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c c\u1ea7n thi\u1ebft \u0111\u1ec3 thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ee7a d\u1eef li\u1ec7u trong c\u00e1c b\u1ea3ng c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Vai tr\u00f2 c\u1ee7a DML trong qu\u1ea3n l\u00fd c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DML \u0111\u00f3ng vai tr\u00f2 r\u1ea5t l\u1edbn trong vi\u1ec7c qu\u1ea3n l\u00fd d\u1eef li\u1ec7u v\u00ec n\u00f3 gi\u00fap ng\u01b0\u1eddi d\u00f9ng d\u1ec5 d\u00e0ng th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c tr\u00ean d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng n\u1ed9i b\u1ed9 c\u1ee7a h\u1ec7 th\u1ed1ng. Nh\u1edd c\u00f3 DML, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o vi\u1ec7c khai th\u00e1c v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng b\u1ecb r\u00e0ng bu\u1ed9c b\u1edfi c\u00e1c v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>C\u00e1c h\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u (DBMS) h\u1ed7 tr\u1ee3 DML<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c h\u1ec7 qu\u1ea3n tr\u1ecb c\u01a1 s\u1edf d\u1eef li\u1ec7u hi\u1ec7n nay \u0111\u1ec1u h\u1ed7 tr\u1ee3 <strong>DML<\/strong>. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ed5 bi\u1ebfn nh\u01b0 MySQL, PostgreSQL, Oracle, SQL Server, v\u00e0 MongoDB. M\u1ed7i h\u1ec7 qu\u1ea3n tr\u1ecb c\u00f3 c\u00e1ch tri\u1ec3n khai ri\u00eang nh\u01b0ng t\u1ea5t c\u1ea3 \u0111\u1ec1u h\u01b0\u1edbng \u0111\u1ebfn m\u1ee5c ti\u00eau chung l\u00e0 cung c\u1ea5p kh\u1ea3 n\u0103ng thao t\u00e1c d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>C\u00e1c lo\u1ea1i ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML c\u00f3 th\u1ec3 chia th\u00e0nh nhi\u1ec1u lo\u1ea1i d\u1ef1a v\u00e0o c\u00e1ch m\u00e0 ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi d\u1eef li\u1ec7u. C\u00f3 hai lo\u1ea1i ch\u00ednh: DML ki\u1ec3u th\u1ee7 t\u1ee5c v\u00e0 DML ki\u1ec3u phi th\u1ee7 t\u1ee5c.<\/p>\n<p>V\u1ec1 c\u01a1 h\u1ed9i vi\u1ec7c l\u00e0m, chuy\u00ean m\u1ee5c CNTT ph\u1ea7n m\u1ec1m tr\u00ean CareerLink \u0111ang c\u00f3 kho\u1ea3ng 438 tin tuy\u1ec3n d\u1ee5ng, m\u1ee9c l\u01b0\u01a1ng ph\u1ed5 bi\u1ebfn dao \u0111\u1ed9ng 8-130 tri\u1ec7u \u0111\u1ed3ng m\u1ed7i th\u00e1ng t\u00f9y c\u1ea5p b\u1eadc v\u00e0 kinh nghi\u1ec7m. Tham kh\u1ea3o tr\u1ef1c ti\u1ebfp <a href=\"https:\/\/www.careerlink.vn\/viec-lam\/cntt-phan-mem\/19\" style=\"color:#1565c0;font-weight:600\">vi\u1ec7c l\u00e0m ng\u00e0nh CNTT ph\u1ea7n m\u1ec1m<\/a> s\u1ebd gi\u00fap b\u1ea1n h\u00ecnh dung r\u00f5 h\u01a1n c\u00f4ng vi\u1ec7c v\u00e0 m\u1eb7t b\u1eb1ng \u0111\u00e3i ng\u1ed9 hi\u1ec7n nay.<\/p>\n\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DML ki\u1ec3u th\u1ee7 t\u1ee5c<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DML ki\u1ec3u th\u1ee7 t\u1ee5c (Procedural DML) y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i vi\u1ebft c\u00e1c h\u00e0m ho\u1eb7c th\u1ee7 t\u1ee5c \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c d\u1eef li\u1ec7u. Lo\u1ea1i DML n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh nh\u01b0 PL\/SQL trong Oracle ho\u1eb7c T-SQL trong SQL Server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u01b0u \u0111i\u1ec3m c\u1ee7a DML ki\u1ec3u th\u1ee7 t\u1ee5c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cung c\u1ea5p kh\u1ea3 n\u0103ng x\u1eed l\u00fd m\u1ea1nh m\u1ebd h\u01a1n.<\/li>\n\n\n\n<li>C\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng m\u00e3 ngu\u1ed3n.<\/li>\n\n\n\n<li>H\u1ed7 tr\u1ee3 l\u1eadp tr\u00ecnh logic ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a n\u00f3 l\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u1ea7n ph\u1ea3i c\u00f3 ki\u1ebfn th\u1ee9c l\u1eadp tr\u00ecnh s\u00e2u r\u1ed9ng h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DML ki\u1ec3u phi th\u1ee7 t\u1ee5c<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DML ki\u1ec3u phi th\u1ee7 t\u1ee5c (Non-Procedural DML), hay c\u00f2n g\u1ecdi l\u00e0 DML phi l\u1eadp tr\u00ecnh, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh SQL tr\u1ef1c ti\u1ebfp tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i vi\u1ebft th\u00eam m\u00e3 ngu\u1ed3n. C\u00e1c c\u00e2u l\u1ec7nh nh\u01b0 <code>SELECT<\/code>, <code>INSERT<\/code>, <code>UPDATE<\/code>, v\u00e0 <code>DELETE<\/code> \u0111\u1ec1u thu\u1ed9c lo\u1ea1i n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u01afu \u0111i\u1ec3m c\u1ee7a DML ki\u1ec3u phi th\u1ee7 t\u1ee5c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D\u1ec5 s\u1eed d\u1ee5ng cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/li>\n\n\n\n<li>Kh\u00f4ng c\u1ea7n ki\u1ebfn th\u1ee9c l\u1eadp tr\u00ecnh s\u00e2u.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00f3 s\u1ef1 h\u1ea1n ch\u1ebf v\u1ec1 kh\u1ea3 n\u0103ng x\u1eed l\u00fd logic ph\u1ee9c t\u1ea1p, DML phi th\u1ee7 t\u1ee5c v\u1eabn \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng v\u00ec t\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng c\u1ee7a n\u00f3.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-c-m-nang-vi-c-l-m wp-block-embed-c-m-nang-vi-c-l-m\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"hOVfRjycqD\"><a href=\"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/tu-van-nghe-nghiep\/typescript-la-gi\">TypeScript l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a TypeScript<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;TypeScript l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a TypeScript&#8221; &#8212; C\u1ea9m Nang Vi\u1ec7c L\u00e0m\" src=\"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/tu-van-nghe-nghiep\/typescript-la-gi\/embed#?secret=MaQ8wZTvgD#?secret=hOVfRjycqD\" data-secret=\"hOVfRjycqD\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>S\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa DML v\u00e0 c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DML kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp m\u00e0 th\u01b0\u1eddng k\u1ebft h\u1ee3p c\u00f9ng v\u1edbi c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c nh\u01b0 DDL (Data Definition Language) v\u00e0 DCL (Data Control Language). M\u1ed7i lo\u1ea1i ng\u00f4n ng\u1eef n\u00e0y \u0111\u1ec1u c\u00f3 nh\u1eefng vai tr\u00f2 v\u00e0 ch\u1ee9c n\u0103ng ri\u00eang bi\u1ec7t nh\u01b0ng l\u1ea1i h\u1ed7 tr\u1ee3 l\u1eabn nhau trong vi\u1ec7c qu\u1ea3n l\u00fd to\u00e0n di\u1ec7n d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Ph\u00e2n bi\u1ec7t DML v\u00e0 DDL: L\u1ec7nh n\u00e0o quan tr\u1ecdng h\u01a1n?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u, <strong>DML<\/strong> v\u00e0 <strong>DDL<\/strong> (Data Definition Language) l\u00e0 hai ng\u00f4n ng\u1eef c\u01a1 b\u1ea3n nh\u1ea5t. M\u1eb7c d\u00f9 c\u1ea3 hai \u0111\u1ec1u ph\u1ee5c v\u1ee5 m\u1ee5c \u0111\u00edch qu\u1ea3n l\u00fd d\u1eef li\u1ec7u, nh\u01b0ng ch\u00fang c\u00f3 nh\u1eefng ch\u1ee9c n\u0103ng kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DML vs DDL: Ch\u1ee9c n\u0103ng v\u00e0 m\u1ee5c \u0111\u00edch<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DML ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thao t\u00e1c d\u1eef li\u1ec7u t\u1ed3n t\u1ea1i trong c\u01a1 s\u1edf d\u1eef li\u1ec7u, trong khi DDL ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u1ea5u tr\u00fac c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u. V\u00ed d\u1ee5, DDL c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o b\u1ea3ng m\u1edbi, thay \u0111\u1ed5i c\u1ea5u tr\u00fac b\u1ea3ng ho\u1eb7c x\u00f3a b\u1ea3ng c\u0169.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DML bao g\u1ed3m c\u00e1c l\u1ec7nh nh\u01b0 <code>INSERT<\/code>, <code>UPDATE<\/code>, <code>DELETE<\/code>, trong khi DDL bao g\u1ed3m c\u00e1c l\u1ec7nh nh\u01b0 <code>CREATE<\/code>, <code>ALTER<\/code>, <code>DROP<\/code>. M\u1ed7i lo\u1ea1i \u0111\u1ec1u c\u00f3 vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c qu\u1ea3n l\u00fd c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>L\u1ee3i \u00edch c\u1ee7a DML v\u00e0 DDL<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea3 DML v\u00e0 DDL \u0111\u1ec1u mang l\u1ea1i nh\u1eefng l\u1ee3i \u00edch ri\u00eang. DML gi\u00fap ng\u01b0\u1eddi d\u00f9ng thao t\u00e1c v\u00e0 qu\u1ea3n l\u00fd d\u1eef li\u1ec7u d\u1ec5 d\u00e0ng, trong khi DDL t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c t\u1ed5 ch\u1ee9c v\u00e0 qu\u1ea3n l\u00fd c\u1ea5u tr\u00fac d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, n\u1ebfu kh\u00f4ng c\u00f3 DDL, DML s\u1ebd kh\u00f4ng c\u00f3 n\u01a1i \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c, v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu kh\u00f4ng c\u00f3 DML, c\u00e1c c\u1ea5u tr\u00fac d\u1eef li\u1ec7u s\u1ebd tr\u1edf n\u00ean v\u00f4 ngh\u0129a n\u1ebfu kh\u00f4ng c\u00f3 d\u1eef li\u1ec7u b\u00ean trong.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>K\u1ebft lu\u1eadn: L\u1ec7nh n\u00e0o quan tr\u1ecdng h\u01a1n?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c x\u00e1c \u0111\u1ecbnh l\u1ec7nh n\u00e0o quan tr\u1ecdng h\u01a1n gi\u1eefa DML v\u00e0 DDL ph\u1ee5 thu\u1ed9c v\u00e0o b\u1ed1i c\u1ea3nh s\u1eed d\u1ee5ng. N\u1ebfu b\u1ea1n \u0111ang \u1edf giai \u0111o\u1ea1n x\u00e2y d\u1ef1ng c\u01a1 s\u1edf d\u1eef li\u1ec7u, DDL c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 quan tr\u1ecdng h\u01a1n. Nh\u01b0ng n\u1ebfu b\u1ea1n \u0111\u00e3 c\u00f3 s\u1eb5n c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 mu\u1ed1n th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c tr\u00ean d\u1eef li\u1ec7u, th\u00ec DML l\u1ea1i tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>C\u00e1c l\u1ec7nh c\u01a1 b\u1ea3n trong ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi n\u00f3i \u0111\u1ebfn <strong>DML<\/strong>, c\u00f3 m\u1ed9t s\u1ed1 l\u1ec7nh c\u01a1 b\u1ea3n m\u00e0 m\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111\u1ec3 thao t\u00e1c d\u1eef li\u1ec7u trong c\u01a1 s\u1edf d\u1eef li\u1ec7u. Nh\u1eefng l\u1ec7nh n\u00e0y bao g\u1ed3m <code>SELECT<\/code>, <code>INSERT<\/code>, <code>UPDATE<\/code>, v\u00e0 <code>DELETE<\/code>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>L\u1ec7nh SELECT<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh <code>SELECT<\/code> l\u00e0 m\u1ed9t trong nh\u1eefng l\u1ec7nh quan tr\u1ecdng nh\u1ea5t trong DML. N\u00f3 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng truy xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb m\u1ed9t ho\u1eb7c nhi\u1ec1u b\u1ea3ng trong c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng <code>SELECT<\/code>, b\u1ea1n c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1ecdc d\u1eef li\u1ec7u theo \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3.<\/li>\n\n\n\n<li>Th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p to\u00e1n th\u1ed1ng k\u00ea ho\u1eb7c t\u00ednh to\u00e1n.<\/li>\n\n\n\n<li>K\u1ebft n\u1ed1i nhi\u1ec1u b\u1ea3ng \u0111\u1ec3 l\u1ea5y d\u1eef li\u1ec7u t\u1ed5ng h\u1ee3p.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n v\u1ec1 l\u1ec7nh <code>SELECT<\/code> c\u00f3 th\u1ec3 l\u00e0:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT * FROM Customers WHERE Country='Vietnam';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh n\u00e0y s\u1ebd tr\u1ea3 v\u1ec1 t\u1ea5t c\u1ea3 th\u00f4ng tin v\u1ec1 kh\u00e1ch h\u00e0ng c\u00f3 qu\u1ed1c gia l\u00e0 Vi\u1ec7t Nam.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>L\u1ec7nh INSERT<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh <code>INSERT<\/code> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u00eam d\u1eef li\u1ec7u m\u1edbi v\u00e0o b\u1ea3ng. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng thao t\u00e1c c\u01a1 b\u1ea3n m\u00e0 h\u1ea7u nh\u01b0 b\u1ea5t k\u1ef3 \u1ee9ng d\u1ee5ng n\u00e0o c\u0169ng ph\u1ea3i th\u1ef1c hi\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>INSERT INTO Customers (CustomerName, ContactName, Country)\nVALUES ('Nguyen Van A', 'Nguyen Van B', 'Vietnam');<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh n\u00e0y s\u1ebd th\u00eam m\u1ed9t kh\u00e1ch h\u00e0ng m\u1edbi v\u00e0o b\u1ea3ng <code>Customers<\/code>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>L\u1ec7nh UPDATE<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o, \u0111\u00f4i khi b\u1ea1n s\u1ebd c\u1ea7n ph\u1ea3i c\u1eadp nh\u1eadt th\u00f4ng tin. L\u1ec7nh <code>UPDATE<\/code> cho ph\u00e9p b\u1ea1n thay \u0111\u1ed5i d\u1eef li\u1ec7u \u0111\u00e3 c\u00f3 trong b\u1ea3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>UPDATE Customers SET ContactName='Tran Van B' WHERE CustomerID=1;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh n\u00e0y s\u1ebd thay \u0111\u1ed5i t\u00ean li\u00ean h\u1ec7 c\u1ee7a kh\u00e1ch h\u00e0ng c\u00f3 ID l\u00e0 1 th\u00e0nh &#8220;Tran Van B&#8221;.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>L\u1ec7nh DELETE<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed1i c\u00f9ng, l\u1ec7nh <code>DELETE<\/code> d\u00f9ng \u0111\u1ec3 x\u00f3a d\u1eef li\u1ec7u kh\u1ecfi b\u1ea3ng. N\u1ebfu b\u1ea1n kh\u00f4ng c\u00f2n c\u1ea7n \u0111\u1ebfn m\u1ed9t b\u1ea3n ghi n\u00e0o \u0111\u00f3, l\u1ec7nh n\u00e0y s\u1ebd gi\u00fap b\u1ea1n lo\u1ea1i b\u1ecf ch\u00fang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>DELETE FROM Customers WHERE CustomerID=1;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh n\u00e0y s\u1ebd x\u00f3a kh\u00e1ch h\u00e0ng c\u00f3 ID l\u00e0 1 kh\u1ecfi b\u1ea3ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u01afu \u0111i\u1ec3m c\u1ee7a ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML s\u1edf h\u1eefu nhi\u1ec1u \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong qu\u1ea3n l\u00fd c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>D\u1ec5 s\u1eed d\u1ee5ng v\u00e0 linh ho\u1ea1t<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a DML l\u00e0 t\u00ednh d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 chu\u1ea9n h\u00f3a. V\u1edbi c\u00e1c l\u1ec7nh SQL \u0111\u01a1n gi\u1ea3n, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c tr\u00ean d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n s\u00e2u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng linh ho\u1ea1t c\u0169ng gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u00e1ch th\u1ee9c thao t\u00e1c v\u1edbi d\u1eef li\u1ec7u t\u00f9y thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee7a h\u1ecd. \u0110i\u1ec1u n\u00e0y th\u1eadt s\u1ef1 h\u1eefu \u00edch trong m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c thay \u0111\u1ed5i nhanh ch\u00f3ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>T\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh l\u00e0m vi\u1ec7c<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DML gi\u00fap t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh l\u00e0m vi\u1ec7c b\u1eb1ng c\u00e1ch cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng thao t\u00e1c tr\u00ean d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp. Vi\u1ec7c n\u00e0y kh\u00f4ng ch\u1ec9 ti\u1ebft ki\u1ec7m th\u1eddi gian m\u00e0 c\u00f2n gi\u00fap c\u1ea3i thi\u1ec7n n\u0103ng su\u1ea5t l\u00e0m vi\u1ec7c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng truy xu\u1ea5t v\u00e0 s\u1eeda \u0111\u1ed5i d\u1eef li\u1ec7u nhanh ch\u00f3ng gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh k\u1ecbp th\u1eddi v\u00e0 ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>H\u1ed7 tr\u1ee3 ph\u00e2n t\u00edch v\u00e0 b\u00e1o c\u00e1o<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DML kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf vi\u1ec7c thao t\u00e1c tr\u00ean d\u1eef li\u1ec7u m\u00e0 c\u00f2n h\u1ed7 tr\u1ee3 ng\u01b0\u1eddi d\u00f9ng trong vi\u1ec7c ph\u00e2n t\u00edch v\u00e0 b\u00e1o c\u00e1o. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh <code>SELECT<\/code>, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng truy xu\u1ea5t v\u00e0 t\u1ed5ng h\u1ee3p d\u1eef li\u1ec7u \u0111\u1ec3 t\u1ea1o ra c\u00e1c b\u00e1o c\u00e1o theo y\u00eau c\u1ea7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c doanh nghi\u1ec7p, n\u01a1i m\u00e0 th\u00f4ng tin ch\u00ednh x\u00e1c v\u00e0 k\u1ecbp th\u1eddi l\u00e0 \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft \u0111\u1ec3 ra quy\u1ebft \u0111\u1ecbnh \u0111\u00fang \u0111\u1eafn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 DML c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, nh\u01b0ng v\u1eabn c\u00f2n t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u1ea7n l\u01b0u \u00fd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>An to\u00e0n d\u1eef li\u1ec7u<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m l\u1edbn c\u1ee7a DML l\u00e0 v\u1ea5n \u0111\u1ec1 an to\u00e0n d\u1eef li\u1ec7u. Khi th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c nh\u01b0 <code>UPDATE<\/code> ho\u1eb7c <code>DELETE<\/code>, c\u00f3 nguy c\u01a1 m\u1ea5t d\u1eef li\u1ec7u do thao t\u00e1c sai. N\u1ebfu kh\u00f4ng c\u00f3 c\u00e1c bi\u1ec7n ph\u00e1p sao l\u01b0u d\u1eef li\u1ec7u th\u00edch h\u1ee3p, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c kh\u00f4i ph\u1ee5c l\u1ea1i d\u1eef li\u1ec7u \u0111\u00e3 m\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y \u0111\u1eb7t ra th\u00e1ch th\u1ee9c cho nh\u1eefng ai ph\u1ea3i l\u00e0m vi\u1ec7c v\u1edbi l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn v\u00e0 quan tr\u1ecdng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Ph\u1ee9c t\u1ea1p trong qu\u1ea3n l\u00fd l\u1edbn<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi s\u1ed1 l\u01b0\u1ee3ng d\u1eef li\u1ec7u trong c\u01a1 s\u1edf d\u1eef li\u1ec7u t\u0103ng l\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh DML c\u00f3 th\u1ec3 tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p h\u01a1n. Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a c\u00e1c c\u00e2u l\u1ec7nh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1t l\u00e0 \u0111i\u1ec1u kh\u00f4ng d\u1ec5 d\u00e0ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 t\u1ea3i cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Y\u00eau c\u1ea7u ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 DML c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem l\u00e0 th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng, nh\u01b0ng \u0111\u1ec3 khai th\u00e1c hi\u1ec7u qu\u1ea3, ng\u01b0\u1eddi d\u00f9ng v\u1eabn c\u1ea7n c\u00f3 ki\u1ebfn th\u1ee9c c\u0103n b\u1ea3n v\u1ec1 c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 SQL. Nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c l\u00e0m quen v\u1edbi c\u00fa ph\u00e1p v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a DML.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p xoay quanh ng\u00f4n ng\u1eef thao t\u00e1c d\u1eef li\u1ec7u DML c\u00f3 th\u1ec3 gi\u00fap ng\u01b0\u1eddi d\u00f9ng hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 n\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Transaction trong DML l\u00e0 g\u00ec?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Transaction l\u00e0 nh\u00f3m l\u1ec7nh DML th\u1ef1c hi\u1ec7n nh\u01b0 m\u1ed9t kh\u1ed1i. N\u1ebfu c\u00f3 l\u1ec7nh n\u00e0o l\u1ed7i, to\u00e0n b\u1ed9 transaction s\u1ebd \u0111\u01b0\u1ee3c h\u1ee7y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u nh\u1ea5t qu\u00e1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DML c\u00f3 li\u00ean k\u1ebft v\u1edbi quy\u1ec1n h\u1ea1n kh\u00f4ng?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, quy\u1ec1n h\u1ea1n trong DCL x\u00e1c \u0111\u1ecbnh ai c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n l\u1ec7nh DML tr\u00ean c\u00e1c b\u1ea3ng c\u1ee5 th\u1ec3. Ng\u01b0\u1eddi d\u00f9ng c\u1ea7n quy\u1ec1n INSERT \u0111\u1ec3 th\u00eam d\u1eef li\u1ec7u v\u00e0o b\u1ea3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1edd \u0111\u00e2y b\u1ea1n \u0111\u00e3 hi\u1ec3u r\u00f5 <strong>DML l\u00e0 g\u00ec<\/strong> v\u00e0 vai tr\u00f2 quan tr\u1ecdng c\u1ee7a n\u00f3 trong vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 thao t\u00e1c d\u1eef li\u1ec7u r\u1ed3i ph\u1ea3i kh\u00f4ng? Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n \u1ee9ng d\u1ee5ng hi\u1ec7u qu\u1ea3 DML trong c\u00f4ng vi\u1ec7c, t\u1eeb \u0111\u00f3 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh x\u1eed l\u00fd d\u1eef li\u1ec7u v\u00e0 n\u00e2ng cao hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea3n th\u00e2n c\u0169ng nh\u01b0 \u0111\u1ed9i nh\u00f3m.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DML l\u00e0 thu\u1eadt ng\u1eef \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ea5t ph\u1ed5 bi\u1ebfn trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 th\u00f4ng tin, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi nh\u1eefng ai l\u00e0m vi\u1ec7c &#8230;<\/p>\n","protected":false},"author":58,"featured_media":8801,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[64],"class_list":["post-8761","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tu-van-nghe-nghiep","tag-it"],"_links":{"self":[{"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/posts\/8761","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/users\/58"}],"replies":[{"embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/comments?post=8761"}],"version-history":[{"count":4,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/posts\/8761\/revisions"}],"predecessor-version":[{"id":27490,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/posts\/8761\/revisions\/27490"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/media\/8801"}],"wp:attachment":[{"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/media?parent=8761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/categories?post=8761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/tags?post=8761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}